CN204991772U - Electric power storage equipment is with outer packaging material and electric power storage equipment - Google Patents
Electric power storage equipment is with outer packaging material and electric power storage equipment Download PDFInfo
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- CN204991772U CN204991772U CN201520602955.4U CN201520602955U CN204991772U CN 204991772 U CN204991772 U CN 204991772U CN 201520602955 U CN201520602955 U CN 201520602955U CN 204991772 U CN204991772 U CN 204991772U
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- 238000003860 storage Methods 0.000 title abstract description 6
- 239000005022 packaging material Substances 0.000 title abstract 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 239000011888 foil Substances 0.000 claims abstract description 26
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 73
- 238000004146 energy storage Methods 0.000 claims description 53
- 239000005030 aluminium foil Substances 0.000 claims description 25
- 229920006015 heat resistant resin Polymers 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000002932 luster Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 abstract description 11
- 239000011347 resin Substances 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 100
- 238000007493 shaping process Methods 0.000 description 15
- 239000003792 electrolyte Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 11
- 239000004677 Nylon Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 229920001778 nylon Polymers 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- -1 polybutylene terephthalate Polymers 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000003490 calendering Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical class [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229920000554 ionomer Polymers 0.000 description 2
- 239000005001 laminate film Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The utility model discloses an electric power storage equipment is following structure with outer packaging material (1): include as heat resistance resin layer (2) on outside layer, as thermoplastic resin layer (3) on inboard layer with set up metal foil layer (4) between this is two -layer, as the metal forming of the central line average roughness (Ra) of the face (4a) of outside layer (2) side as 1nm-150nm is used to the metal forming. Through forming this structure, carry out the plutonic type and also can ensure the electric power storage equipment of excellent formability and use outer packaging material even can provide one kind.
Description
Technical field
The utility model relates to the housing material of following electric energy storage device and utilizes this housing material to carry out the electric energy storage device of external packing, and described electric energy storage device is: for battery and the capacitor (condenser) of the portable set such as smart mobile phone, panel computer (portableequipment); For the battery and capacitor etc. of hybrid vehicle, electric motor car, wind power generation, solar power generation, night electricity electric power storage.
It should be noted that, in claims and specification of the application, the implication of " center line average roughness " this term refers to the center line average roughness Ra measured according to JISB0601-2001.
Background technology
In recent years, along with slimming, the lightweight of the mobile electronic devices such as smart mobile phone, panel computer terminal, as the housing material of the electric energy storage device such as lithium rechargeable battery, lighium polymer secondary battery, lithium-ion capacitor (lithiumioncapacitor), double electric layer capacitor (electricdouble-layercapacitor) being equipped on above-mentioned mobile electronic device, use the metal can (see patent documentation 1) replacing in the past by the lamilated body that heat-resistant resin layer/bond layer/metal foil layer/bond layer/thermoplastic resin is formed.Usually, by carrying out drawing and forming to above-mentioned lamilated body, deep drawing is shaping, thus is shaped to the roughly three-dimensional shape such as rectangular shape.In addition, utilize the lamilated body of above-mentioned formation (housing material) to pack the power supply of electric motor car etc., the situation of the large-scale power supply, capacitor etc. of electric power storage purposes also increases gradually.
Patent documentation 1: Japanese Unexamined Patent Publication 2007-161310 publication
Utility model content
For the battery etc. of mobile device, require battery capacity is increased further, and the volume of content just must be made to increase further in order to increase battery capacity.When making the volume of cell contents increase, need when housing material being shaped to three-dimensional shape to carry out plutonic type, even if but require that carrying out such plutonic type also can guarantee good mouldability, does not namely produce pin hole in the corner etc. of products formed, breaks.
In addition, for electric vehicle battery etc., require that it has the long-life, therefore as its housing material, also require that there is the long-life.Known in battery housing material, due to the impact of the electrolyte etc. of content, the dhering strength between metal foil layer and thermoplastic resin (la m) through time reduce, requirement can keep this dhering strength for a long time.
The utility model is formed in view of above-mentioned technical background, even if its first object is that providing a kind of carries out the electric energy storage device housing material that plutonic type also can guarantee excellent mouldability.
In addition, even if the second object is to provide a kind of plutonic type that carries out also can guarantee excellent mouldability and the electric energy storage device housing material can guaranteeing the abundant adaptation between metal foil layer and thermoplastic resin (la m) for a long time.
To achieve these goals, the utility model provides following scheme.
[1] an electric energy storage device housing material, is characterized in that,
Comprise the heat-resistant resin layer as outside layer, the thermoplastic resin as la m and be arranged at this two-layer between metal foil layer,
The center line average roughness (Ra) in the face of the layer side, outside of described metal forming is 1nm ~ 150nm.
[2] the electric energy storage device housing material as described in preceding paragraph 1, wherein, the center line average roughness (Ra) in the face of the la m side of described metal forming is 100nm ~ 500nm.
[3] electric energy storage device, is characterized in that, possesses the electric energy storage device housing material described in electric energy storage device main part and preceding paragraph 1 or 2,
Described electric energy storage device main part utilizes described housing material to carry out external packing.
For the utility model of [1], because the center line average roughness (Ra) in the face of the layer side, outside of metal forming is 1nm ~ 150nm, therefore, even if carry out plutonic type to housing material, also can fully prevent by the rough surface of metal forming cause shaping time metal foil layer and outside layer (heat-resistant resin layer) between stripping.That is, even if carry out plutonic type to housing material, metal foil layer when also can fully maintain shaping and the adaptation between outside layer (heat-resistant resin layer), can guarantee excellent mouldability.That is, above-mentioned first object can be realized.In addition, because the center line average roughness (Ra) in the face of the layer side, outside of metal forming is 1nm ~ 150nm, therefore, when observing housing material of the present utility model from outside, can be observed metallic luster.
For the utility model of [2], because the center line average roughness (Ra) in the face of the la m side of metal forming is 100nm ~ 500nm, therefore, fully can present fixing (anchor) effect of the bond layer brought by the concave-convex surface in the face of the la m side of metal forming, thus, fully can guarantee the adhesive strength of metal foil layer and la m (thermoplastic resin) in the early stage, and this sufficient adhesive strength can be kept for a long time.That is, above-mentioned second object can be realized.Such as, though when the content of electric energy storage device be electrolyte etc. such, the situation that the adhesive strength that also there is not metal foil layer and thermoplastic resin (la m) reduces in time, and can the sufficient adhesive strength of long term maintenance.
[3] utility model (electric energy storage device) provides a kind of electric energy storage device, even if it is capacity in order to increase electric energy storage device and design content object is long-pending significantly structure, also following housing material can be utilized to carry out external packing and have metallic luster, described housing material can when do not produce to break etc., carry out plutonic type without any problems.
Accompanying drawing explanation
Fig. 1 is the profile of the execution mode representing electric energy storage device housing material of the present utility model.
Fig. 2 is the profile of an execution mode of the electric energy storage device representing use electric energy storage device housing material of the present utility model and form.
Symbol description
1 ... electric energy storage device housing material
2 ... heat-resistant resin layer (outside layer)
3 ... thermoplastic resin (la m)
4 ... metal foil layer
4a ... the face of the layer side, outside of metal forming
4b ... the face of the la m side of metal forming
5 ... first bond layer
6 ... second bond layer
11 ... molded housing
19 ... electric energy storage device main part
20 ... electric energy storage device
Embodiment
One execution mode of electric energy storage device housing material 1 of the present utility model is shown in Fig. 1.Described electric energy storage device housing material 1 is used as lithium rechargeable battery housing.That is, described electric energy storage device housing material 1 is conducted to that such as deep drawing is shaping, drawing and forming etc. is shaping, as the housing etc. of secondary cell.
Described electric energy storage device housing material 1 forms following structure: have heat-resistant resin layer (outside layer) 2 in the one side of metal foil layer 4 via the laminated integration of the first bond layer 5, and has thermoplastic resin (la m) 3 at the another side of described metal foil layer 4 via the laminated integration of the second bond layer 6.
In the utility model, as described metal forming 4, use the metal forming that the center line average roughness (Ra) of the face 4a of layer side, outside is 1nm ~ 150nm.When Ra is less than 1nm, the calendering cost of paper tinsel is high.On the other hand, if Ra is greater than 150nm, then when carrying out plutonic type to housing material, can be peeling between metal foil layer 4 and outside layer (heat-resistant resin layer) 2 time shaping.Even if when shaping as described above such between metal foil layer 4 and outside layer 2 part be peeling, also producing that stress is concentrated, metal foil layer 4 shrinks distortion, when result is through being everlasting shaping, causing fracture.
Wherein, the center line average roughness (Ra) of the face 4a of the layer side, outside of described metal forming 4 is preferably 5nm ~ 100nm, and further Ra is particularly preferably 5nm ~ 40nm.
It should be noted that, for housing material 1 of the present utility model (namely, the metal forming that the center line average roughness (Ra) employing the face 4a of layer side, outside is 1nm ~ 150nm is as the structure of described metal forming 4), for this housing material 1 from its outside the gloss value (desired value of glossiness) that records of layer 2 side (upper surface side from Fig. 1) in the scope of 200 ~ 800, when observing housing material 1 of the present utility model from layer side, outside, can be observed metallic luster.There is following relation: if the center line average roughness (Ra) of the face 4a of layer side, outside diminishes, then gloss value becomes large.
In the utility model, as described metal forming 4, preferably use the metal forming that the center line average roughness (Ra) of the face 4b of la m side is 100nm ~ 500nm.Be more than 100nm by the Ra of the face 4b making la m side, fully can present the fixed effect of the second bond layer 6, fully can guarantee the adhesive strength of metal foil layer 4 and la m (thermoplastic resin) 3 in the early stage, and this sufficient adhesive strength can be kept for a long time.In addition, be below 500nm by the Ra of the face 4b making la m side, bonding agent can be carried out even spread.
Wherein, the center line average roughness (Ra) of the face 4b of the la m side of described metal forming 4 is preferably 140nm ~ 350nm.
As the heat-resistant resin forming described heat-resistant resin layer (outside layer) 2, under being used in heat-sealing temperature when (heatseal) sealed to housing material, there is not the heat-resistant resin of melting.As described heat-resistant resin, preferably use fusing point than the heat-resistant resin of high more than 10 DEG C of the fusing point of the thermoplastic resin of formation thermoplastic resin 3, particularly preferably use the heat-resistant resin of higher than the fusing point of thermoplastic resin more than 20 DEG C of fusing point.
As described heat-resistant resin layer (outside layer) 2, be not particularly limited, such as, can enumerate polyamide membrane, the polyester films etc. such as nylon membrane, preferably use their stretched film.Wherein, as described heat-resistant resin layer 2, particularly preferably use the biaxial stretching polyamide films such as biaxial stretch-formed nylon membrane, biaxial stretch-formed polybutylene terephthalate (PBT) (PBT) film, biaxial stretch-formed PETG (PET) film or biaxial stretch-formed PEN (PEN) film.As described nylon membrane, be not particularly limited, such as, 6 nylon membranes, 6 can be enumerated, 6 nylon membranes, MXD nylon membrane etc.It should be noted that, described heat-resistant resin layer 2 can be formed as a single layer, or can be formed with the form of the composite bed such as formed by polyester film/polyamide membrane (composite bed etc. formed by PET film/nylon membrane).
The thickness of described heat-resistant resin layer 2 is preferably 12 μm ~ 50 μm.When using polyester film, thickness is preferably 12 μm ~ 50 μm, and when using nylon membrane, thickness is preferably 15 μm ~ 50 μm.By being set as more than above-mentioned preferred lower limit, sufficient intensity can be guaranteed as housing material, and, by being set as below above-mentioned preferred higher limit, can reduce drawing and forming, drawing and forming etc. shaping time stress, thus can mouldability be improved.
Described thermoplastic resin (la m) 3 undertakes following effects: the electrolyte etc. that the corrosivity that housing material is used lithium rechargeable battery etc. is strong also possesses excellent chemical-resistant, and gives heat sealability to housing material.
As described thermoplastic resin 3, be not particularly limited, be preferably thermoplastic resin unstretching film layer.Described thermoplastic resin unstretching film layer 3 is not particularly limited, preferably be made up of following unstretching film, described unstretching film is formed by least a kind of thermoplastic resin be selected from the group that is made up of polyethylene, polypropylene, olefin copolymer, their sour modifier and ionomer (ionomer).
The thickness of described thermoplastic resin 3 is preferably set to 20 μm ~ 80 μm.By being more than 20 μm, the generation of pin hole fully can be prevented, and, by being set as less than 80 μm, resin use amount can be reduced, thus realize cost reduction.Wherein, the thickness of described thermoplastic resin 3 is particularly preferably set as 30 μm ~ 50 μm.It should be noted that, described thermoplastic resin 3 both can be individual layer, also can be composite bed.
Described metal foil layer 4 undertakes the effect of housing material 1 being given to choke (gasbarrier) property stoping oxygen, moisture to invade.As described metal foil layer 4, be not particularly limited, such as, can enumerate aluminium foil, Copper Foil etc., usually use aluminium foil.The thickness of described metal foil layer 4 is preferably 20 μm ~ 100 μm.By being more than 20 μm, can prevent from producing pin hole during the calendering when manufacturing metal forming, and, by being less than 100 μm, can reduce drawing and forming, drawing and forming etc. shaping time stress, thus can mouldability be improved.
For described metal foil layer 4, preferably, at least chemical conversion treatment is implemented to the face 4b (face of the second bond layer 6 side) of inner side.By implementing such chemical conversion treatment, the corrosion to metal foil surface caused by content (electrolyte etc. of battery) fully can be prevented.In addition, when adopting the face 4a of the layer side, outside in described metal forming (face of the first bond layer 5 side) to be formed with the structure of chemical conversion treatment film, following each effect can be obtained.Namely, oxygen, the liquid of denier may enter from heat-resistant resin layer (outside layer), if these invaders arrive metal foil layer, then may become the reason that corrosion occurs metal foil layer, in this case, the metallic luster that likely can produce metal foil layer reduces, On Local Fuzzy is unclear, but is formed with chemical conversion treatment film by the face of the layer side, outside in metal forming, can fully prevent above-mentioned unfavorable condition.In addition, even if electrolyte being attached to outside layer when injecting electrolyte, inject the end face of liquid peristome, being formed with chemical conversion treatment film by the face of the layer side, outside in metal forming, also can fully preventing metal foil layer from corroding.Such as by carrying out following process, chemical conversion treatment is implemented to metal forming.That is, such as, the surface of the metal forming after carrying out ungrease treatment is coated with following 1) ~ 3) in any one aqueous solution, then carry out drying, implement chemical conversion treatment thus,
1) aqueous solution of mixture, it comprises:
Phosphoric acid,
Chromic acid and
Be selected from the compound of at least a kind in the group be made up of the slaine of fluoride and the non-metal salt of fluoride;
2) aqueous solution of mixture, it comprises:
Phosphoric acid,
Be selected from the resin of at least a kind in the group be made up of acrylic resin, chitosan derivative resin and phenolic aldehyde system resin and
Be selected from the compound of at least a kind in the group be made up of chromic acid and chromium (III) salt;
3) aqueous solution of mixture, it comprises:
Phosphoric acid,
Be selected from the resin of at least a kind in the group be made up of acrylic resin, chitosan derivative resin and phenolic aldehyde system resin,
Be selected from the compound of at least a kind in the group be made up of chromic acid and chromium (III) salt and
Be selected from the compound of at least a kind in the group be made up of the slaine of fluoride and the non-metal salt of fluoride.
For described chemical conversion film, as chromium adhesion amount (every one side), be preferably 0.1mg/m
2~ 50mg/m
2, be particularly preferably 2mg/m
2~ 20mg/m
2.
As described first bond layer 5, be not particularly limited, such as, can enumerate polyurethane adhesive oxidant layer, polyester-polyurethane bond layer, polyether-polyurethane bond layer etc.The thickness of described first bond layer 5 is preferably set to 1 μm ~ 5 μm.Wherein, consider from the filming of housing material, light-weighted viewpoint, the thickness of described first bond layer 5 is particularly preferably set as 1 μm ~ 3 μm.
As described second bond layer 6, be not particularly limited, such as, also can be used as the bond layer shown by above-mentioned first bond layer 5, preferably use the swelling little polyolefin bonding agent caused by electrolyte.The thickness of described second bond layer 6 is preferably set to 1 μm ~ 5 μm.Wherein, consider from the filming of housing material, light-weighted viewpoint, the thickness of described second bond layer 6 is particularly preferably set as 1 μm ~ 3 μm.
By carrying out housing material 1 of the present utility model shaping (deep drawing shaping, drawing and forming etc.), molded housing (battery container etc.) can be obtained.It should be noted that, housing material 1 of the present utility model can not be supplied to shaping and directly use.
Use housing material 1 of the present utility model and the execution mode of electric energy storage device 20 that forms is shown in Fig. 2.This electric energy storage device 20 is lithium rechargeable battery.
Described battery 20 comprises: electrolyte 21, lug (tablead) 22, be not supplied to shaping plane above-mentioned housing material 1, and by shaping for above-mentioned housing material 1 molded housing 11 (see Fig. 2) obtaining, there is housing recess 11b.Electric energy storage device main part 19 is made up of described electrolyte 21 and described lug 22.
The part stating electrolyte 21 and described lug 22 is to some extent received in the housing recess 11b of described molded housing 11, this molded housing 11 is configured with described plane housing material 1, the circumference (la m 3) of this housing material 1 is engaged with the sealing circumference 11a (la m 3) of described molded housing 11 and seals, forms described battery 20 thus.It should be noted that, the leading section of described lug 22 is exported to outside (see Fig. 2).
Embodiment
Next, specific embodiment of the utility model is described, but the utility model is not particularly limited to these embodiments.
< embodiment 1 >
At the chemical conversion treatment solution that the center line average roughness Ra of one side is 40nm, coating comprises polyacrylic acid, trivalent chromium compound, water, alcohol on the two sides of the center line average roughness Ra of another side to be the thickness of 230nm the be aluminium foil 4 of 35 μm, and carry out drying in 180 DEG C, thus form chemical conversion film.The chromium adhesion amount of the every one side of this chemical conversion film is 10mg/m
2.
Then, carry out on one side (Ra is the face of the 40nm) 4a of complete aluminium foil 4 in described chemical conversion treatment, carbamate system bonding agent 5 dry type laminated (laminating) thickness via 2 solution curing types is biaxial stretch-formed 6 nylon membranes (fusing point: 220 DEG C) 2 of 15 μm.
Then, using T mould to be the maleated polypropylene layer (the second bond layer) 6 of 7 μm and fusing point by thickness is 140 DEG C, MFR (melt flow rate (MFR), meltflowrate) the ethylene-propylene random copolymer resin bed (la m) 3 being 28 μm for the thickness of 7g/10 minute is extruded jointly, obtain this two-layer laminated laminate film thus, then, carry out described jointly extrude after immediately another side (Ra is the face of the 230nm) 4b of the aluminium foil 4 after laminated with described dry type for second bond layer 6 of this laminate film is coincided together, they are inserted into be heated to 150 DEG C a pair hot-rolling between carry out hot laminating, obtain the electric energy storage device housing material 1 of the structure shown in Fig. 1 thus.
< embodiment 2 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 10nm, the center line average roughness Ra of another side (face of la m side) 4b is 140nm is the aluminium foil of 35 μm, in addition, the electric energy storage device housing material 1 of the structure shown in Fig. 1 is obtained similarly to Example 1.
< embodiment 3 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 70nm, the center line average roughness Ra of another side (face of la m side) 4b is 450nm is the aluminium foil of 35 μm, in addition, the electric energy storage device housing material 1 of the structure shown in Fig. 1 is obtained similarly to Example 1.
< embodiment 4 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 40nm, the center line average roughness Ra of another side (face of la m side) 4b is 500nm is the aluminium foil of 35 μm, in addition, the electric energy storage device housing material 1 of the structure shown in Fig. 1 is obtained similarly to Example 1.
< embodiment 5 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 5nm, the center line average roughness Ra of another side (face of la m side) 4b is 230nm is the aluminium foil of 35 μm, in addition, the electric energy storage device housing material 1 of the structure shown in Fig. 1 is obtained similarly to Example 1.
< embodiment 6 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 110nm, the center line average roughness Ra of another side (face of la m side) 4b is 70nm is the aluminium foil of 35 μm, in addition, electric energy storage device housing material is obtained similarly to Example 1.
< comparative example 1 >
As aluminium foil 4, the thickness that the center line average roughness Ra using one side (face of layer side, outside) 4a is 230nm, the center line average roughness Ra of another side (face of la m side) 4b is 40nm is the aluminium foil of 35 μm, in addition, electric energy storage device housing material is obtained similarly to Example 1.
It should be noted that, the center line average roughness Ra on the surface of the aluminium foil used in the various embodiments described above, comparative example is the surfagauge " SURFTESTSV600 " using MitutoyoCorporation, the value measured according to JISB0601-2001.
In addition, as described below, the two sides Ra separately of each aluminium foil used in each embodiment and comparative example 1 is adjusted.For embodiment 2,3,4,6, using the upper bottom calender roll of paper tinsel calender to be that the aluminium foil of 300 μm carries out several calendering until be formed as specific thickness by the thickness prepared, carrying out the adjustment of Ra by the surface roughness of final stack being changed to various roughness (by the different stack of use surface roughness as final stack).On the other hand, for embodiment 1, embodiment 5, comparative example 1, the aluminium foil by 2 thickness prepared being 300 μm is overlapping, using the upper bottom calender roll of paper tinsel calender 2 of above-mentioned overlap aluminium foils to be carried out several calendering until be formed as specific thickness, adjusting the Ra in the face contacted with stack by the surface roughness of final stack being changed to various roughness (by using the different stack of surface roughness as final stack).In the latter case, the Ra in face that 2 aluminium foils coincide with one another is 230nm.
[table 1]
For each electric energy storage device housing material obtained as described above, carry out performance evaluation based on following evaluation assessment.Their result is shown in table 1.
< mouldability evaluation assessment >
Housing material drawing and forming is the roughly rectangular shape of long 55mm × wide 35mm by the stretch forming press (article number: TP-25C-X2) of use AmadaCorporation, namely change form depth and carry out drawing and forming, check and have free of pinholes at the corner place of the formed body of gained and break, and investigate " maximum form depth (mm) " that do not produce above-mentioned pin hole and break.
< electrolyte resistance evaluation assessment >
Housing material is cut into 15mm wide thus make mensuration sheet, lithium hexafluoro phosphate is made to be dissolved in the mixed solvent that ethylene carbonate (ethylenecarbonate) and diethylidene carbonic ester (diethylenecarbonate) mix with the Capacity Ratio of 1:1 with the concentration of 1mol/L, then solution obtained above and described mensuration sheet are loaded in the wide-mouth bottle of tetrafluoroethylene resin, preserve 1 week in the baking oven of 85 DEG C after, take out and measure sheet, peel off in the interface of aluminium foil 4 and ethylene-propylene random copolymer resin bed (la m) 3, thus lamination bond (adhesive strength) (N/15mm is wide) that measure between the two.
Gloss value (GU value) the determination method > of < housing material
As determining instrument, use " micro-TRI-gloss-s " of BYK Inc., measure with 60 ° of angles of reflection.It should be noted that, for housing material, outside it, layer 2 measures gloss value (glossiness on the surface of outside layer 2 side of housing material).
As shown in Table 1, the maximum form depth of the housing material of embodiment 1 ~ 6 of the present utility model is large, even if carry out plutonic type also can guarantee excellent mouldability.In addition, the housing material (the center line average roughness Ra in the face of the la m side of its metal forming is 100nm ~ 500nm) of embodiment 1 ~ 5 can keep sufficient adhesive strength for a long time, and electrolyte resistance is also excellent.
In contrast, the housing material (the center line average roughness Ra in the face of the layer side, outside of its metal forming is not in the scope of 1nm ~ 150nm) of comparative example 1 cannot guarantee good mouldability when carrying out plutonic type.
Utilizability in industry
As object lesson, electric energy storage device housing material of the present utility model can be used as such as
The electric energy storage devices such as lithium secondary battery (lithium ion battery, lithium polymer battery etc.)
Lithium-ion capacitor
Double electric layer capacitor
Etc. the housing material of various electric energy storage device.
The application advocates that the Japanese patent application laid of filing an application on October 22nd, 2014 is willing to the priority of No. 2014-214981, and its disclosure directly forms a application's part.
Term used herein and explanation are in order to illustrate that execution mode of the present utility model uses, and the utility model is not limited, if within right, only otherwise exceed its purport, then the utility model also allows any design alteration.
Claims (8)
1. an electric energy storage device housing material, is characterized in that,
Comprise the heat-resistant resin layer as outside layer, the thermoplastic resin as la m and be arranged at this two-layer between metal foil layer,
The center line average roughness (Ra) in the face of the layer side, outside of described metal forming is 1nm ~ 150nm.
2. electric energy storage device housing material as claimed in claim 1, wherein, the center line average roughness (Ra) in the face of the la m side of described metal forming is 100nm ~ 500nm.
3. electric energy storage device housing material as claimed in claim 1 or 2, wherein, the center line average roughness (Ra) in the face of the layer side, outside of described metal forming is 5nm ~ 100nm.
4. electric energy storage device housing material as claimed in claim 1 or 2, wherein, the center line average roughness (Ra) in the face of the layer side, outside of described metal forming is 5nm ~ 40nm.
5. electric energy storage device housing material as claimed in claim 1 or 2, wherein, is formed with chemical conversion treatment film in the face of the layer side, outside of described metal forming.
6. electric energy storage device housing material as claimed in claim 1 or 2, wherein, described metal forming to be thickness the be aluminium foil of 20 μm ~ 100 μm.
7. electric energy storage device housing material as claimed in claim 1 or 2, wherein, when observing described housing material from layer side, outside, can observe metallic luster, the gloss value measured from layer side, outside described housing material is 200 ~ 800.
8. an electric energy storage device, is characterized in that,
Comprise the electric energy storage device housing material according to any one of electric energy storage device main part and claim 1 ~ 7,
Described electric energy storage device main part utilizes described housing material to carry out external packing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-214981 | 2014-10-22 | ||
| JP2014214981A JP6389096B2 (en) | 2014-10-22 | 2014-10-22 | Power storage device exterior material and power storage device |
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| Publication Number | Publication Date |
|---|---|
| CN204991772U true CN204991772U (en) | 2016-01-20 |
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| CN201520602955.4U Active CN204991772U (en) | 2014-10-22 | 2015-08-11 | Electric power storage equipment is with outer packaging material and electric power storage equipment |
| CN201510490450.8A Active CN105552250B (en) | 2014-10-22 | 2015-08-11 | Outer packaging material for electricity storage device and electricity storage device |
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| CN201510490450.8A Active CN105552250B (en) | 2014-10-22 | 2015-08-11 | Outer packaging material for electricity storage device and electricity storage device |
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| Country | Link |
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| JP (1) | JP6389096B2 (en) |
| KR (1) | KR102351860B1 (en) |
| CN (2) | CN204991772U (en) |
| TW (1) | TWI662733B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552250A (en) * | 2014-10-22 | 2016-05-04 | 昭和电工包装株式会社 | Outer packaging material for electrical storage device and electrical storage device |
| TWI800662B (en) * | 2018-07-20 | 2023-05-01 | 日商樂索納克包裝股份有限公司 | Exterior material for electric storage device and manufacturing method thereof |
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| WO2016125912A1 (en) * | 2015-02-06 | 2016-08-11 | 大日本印刷株式会社 | Packaging material for battery |
| EP3633756A4 (en) | 2017-06-02 | 2021-02-24 | Sumitomo Electric Fine Polymer, Inc. | Electricity storage device member, method for manufacturing same, and electricity storage device |
| CN111033787B (en) * | 2017-08-03 | 2023-09-05 | 大日本印刷株式会社 | Resist film, packaging material, and method for producing packaging material |
| JP7045055B2 (en) | 2018-03-23 | 2022-03-31 | 株式会社サンセイアールアンドディ | Pachinko machine |
| JP7045056B2 (en) | 2018-03-23 | 2022-03-31 | 株式会社サンセイアールアンドディ | Pachinko machine |
| CN108321316A (en) * | 2018-03-24 | 2018-07-24 | 常州斯威克光伏新材料有限公司 | A kind of aluminum-plastic composite membrane for li battery shell encapsulation |
| JP2022049182A (en) * | 2020-09-16 | 2022-03-29 | 昭和電工パッケージング株式会社 | Exterior material for power storage device, power storage device, and manufacturing method of exterior material for power storage device |
| WO2024214754A1 (en) * | 2023-04-10 | 2024-10-17 | 大日本印刷株式会社 | Exterior material for power storage device, method for manufacturing same, and power storage device |
| WO2024214753A1 (en) * | 2023-04-10 | 2024-10-17 | 大日本印刷株式会社 | Covering material for power storage device, production method for covering material and power storage device |
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| JP2001035455A (en) * | 1999-07-16 | 2001-02-09 | Dainippon Printing Co Ltd | Layered product and polymer battery packaging material using it |
| JP2003123707A (en) * | 2001-10-16 | 2003-04-25 | Toppan Printing Co Ltd | PACKAGING MATERIAL FOR Li BATTERY |
| JP4543662B2 (en) * | 2003-11-18 | 2010-09-15 | ソニー株式会社 | battery |
| JP5380762B2 (en) * | 2005-05-11 | 2014-01-08 | 大日本印刷株式会社 | Battery packaging material |
| JP4732884B2 (en) * | 2005-12-15 | 2011-07-27 | 昭和電工パッケージング株式会社 | Electronic parts case packaging and electronic parts case |
| TWI511351B (en) * | 2010-10-14 | 2015-12-01 | Toppan Printing Co Ltd | Lithium-ion battery exterior materials |
| KR20230035456A (en) * | 2011-03-29 | 2023-03-13 | 가부시키가이샤 레조낙·패키징 | Molding packaging material and battery case |
| JP2012216509A (en) * | 2011-03-29 | 2012-11-08 | Toray Advanced Film Co Ltd | Aluminum foil laminate sheet for secondary battery exterior material and secondary battery exterior material |
| US9732402B2 (en) * | 2012-08-01 | 2017-08-15 | Uacj Corporation | Aluminum alloy foil and method for manufacturing same |
| JP6152260B2 (en) * | 2012-11-01 | 2017-06-21 | 昭和電工パッケージング株式会社 | Battery exterior material and battery |
| WO2014103988A1 (en) * | 2012-12-27 | 2014-07-03 | 東レ株式会社 | Film for molding |
| JP6389096B2 (en) * | 2014-10-22 | 2018-09-12 | 昭和電工パッケージング株式会社 | Power storage device exterior material and power storage device |
-
2014
- 2014-10-22 JP JP2014214981A patent/JP6389096B2/en active Active
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- 2015-07-01 TW TW104121406A patent/TWI662733B/en active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552250A (en) * | 2014-10-22 | 2016-05-04 | 昭和电工包装株式会社 | Outer packaging material for electrical storage device and electrical storage device |
| CN105552250B (en) * | 2014-10-22 | 2019-12-24 | 昭和电工包装株式会社 | Outer packaging material for electricity storage device and electricity storage device |
| TWI800662B (en) * | 2018-07-20 | 2023-05-01 | 日商樂索納克包裝股份有限公司 | Exterior material for electric storage device and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6389096B2 (en) | 2018-09-12 |
| JP2016081856A (en) | 2016-05-16 |
| KR102351860B1 (en) | 2022-01-14 |
| CN105552250A (en) | 2016-05-04 |
| CN105552250B (en) | 2019-12-24 |
| TWI662733B (en) | 2019-06-11 |
| KR20160047383A (en) | 2016-05-02 |
| TW201616705A (en) | 2016-05-01 |
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Address after: Shiga Patentee after: Lesonac Packaging Co.,Ltd. Address before: Kanagawa County Patentee before: SHOWA DENKO PACKAGING Co. |
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Address after: Shiga Patentee after: Lishennoco Packaging Co.,Ltd. Address before: Shiga Patentee before: Lesonac Packaging Co.,Ltd. |