JP7463930B2 - 電池 - Google Patents
電池 Download PDFInfo
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- JP7463930B2 JP7463930B2 JP2020166063A JP2020166063A JP7463930B2 JP 7463930 B2 JP7463930 B2 JP 7463930B2 JP 2020166063 A JP2020166063 A JP 2020166063A JP 2020166063 A JP2020166063 A JP 2020166063A JP 7463930 B2 JP7463930 B2 JP 7463930B2
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- 238000007789 sealing Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 81
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 239000007784 solid electrolyte Substances 0.000 description 9
- 239000011149 active material Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910003480 inorganic solid Inorganic materials 0.000 description 3
- 239000005001 laminate film Substances 0.000 description 3
- 239000011244 liquid electrolyte Substances 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000002203 sulfidic glass Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003660 carbonate based solvent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
本開示における電池は、図1に示すように、外装体50の内部領域Iから外部領域Oまで伸長するように配置された電極端子(正極端子110、負極端子120)を有する。また、図3(a)~(c)に示すように、電極端子60は、外装体50の内部領域Iに配置され、電極体の電極タブ(正極タブ15t)と接続された内部集電部61と、外装体50の外部領域Oに配置された外部集電部62と、を少なくとも有する。なお、図3(a)~(c)に示す電極端子60は正極端子である。ここで、図3(a)に示すように、内部集電部61の幅をW1とし、外部集電部62の幅をW2とする。本開示においては、W1>W2とすることで、例えば急速充電を行った場合であっても、電極端子に電流が集中することを抑制でき、電極端子の温度上昇を抑制できる。
図6(a)は本開示における電極体を例示する概略平面図であり、図6(b)は図6(a)の側面図である。図6(a)、(b)に示す電極体Eは、正極層4と、負極層2と、正極層4および負極層2の間に配置されたセパレート層3と、正極層4の集電を行う正極集電体5と、負極層2の集電を行う負極集電体1と、を有する。正極集電体5は、平面視上、正極層4と重複しない位置に正極タブ5tを有する。同様に、負極集電体1は、平面視上、負極層2と重複しない位置に負極タブ1tを有する。正極集電体5および正極タブ5tは、電気的に接続されていれば、同部材であってもよく、異部材であってもよい。この点は、負極集電体1および負極タブ1tについても同様である。
本開示における電池は、電極体を収納する内部領域を有する外装体を有する。外装体は、可撓性を有していてもよく、有していなくてもよい。前者の一例としては、アルミラミネートフィルムが挙げられ、後者の一例としては、SUS製ケースが挙げられる。また、外装体がラミネートフィルムである場合、外装体の内部領域および外部領域の間に、ラミネートフィルムの内側樹脂層同士が融着したシール領域を有していてもよい。
1t … 負極タブ
2 … 負極層
3 … セパレート層
4 … 正極層
5 … 正極集電体
5t … 正極タブ
10 … 第1電極体
20 … 第2電極体
30 … 絶縁部材
40 … 接続部材
50 … 外装体
60 … 内部集電部
61 … 外部集電部
62 … 中間部
70 … 絶縁性保護層
100 … 電池
Claims (4)
- 電極体と、前記電極体を収納する内部領域を有する外装体と、を備える電池であって、
前記電池は、前記外装体の前記内部領域から外部領域まで伸長するように配置された電極端子を有し、
前記電極端子は、前記内部領域に配置され、前記電極体の電極タブと接続された内部集電部と、前記外部領域に配置された外部集電部と、を有し、
前記内部集電部の幅は、前記外部集電部の幅より大きく、
前記電極端子は、前記内部集電部および前記外部集電部の間に配置され、前記外装体のシール領域に位置する中間部を有し、
前記シール領域は、前記内部集電部と隣接し、
前記中間部の幅は、前記内部集電部の幅よりも小さく、
前記電極端子の平面視形状は、L字形状である、電池。 - 前記内部集電部に接続された前記電極タブの幅は、前記外部集電部の幅より大きい、請求項1に記載の電池。
- 前記電池は、複数の前記電極体として、第1電極体および第2電極体を少なくとも有し、
前記第1電極体は、電極タブPを有し、
前記第2電極体は、前記電極タブPとは反対の極性を有する電極タブRとを有し、
前記電極タブPおよび前記電極タブRは、前記内部領域において接続されている、請求項1に記載の電池。 - 前記第1電極体および前記第2電極体は、絶縁部材を介して、厚さ方向に沿って積層され、
前記第1電極体および前記第2電極体は、それぞれ、
負極集電体と、
前記負極集電体の一方の面から順に配置された、第1負極層、第1セパレート層、第1正極層および第1正極集電体と、
前記負極集電体の他方の面から順に配置された、第2負極層、第2セパレート層、第2正極層および第2正極集電体と、
を有する、請求項3に記載の電池。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020166063A JP7463930B2 (ja) | 2020-09-30 | 2020-09-30 | 電池 |
US17/475,556 US12126053B2 (en) | 2020-09-30 | 2021-09-15 | Battery |
CN202111085620.6A CN114335412B (zh) | 2020-09-30 | 2021-09-16 | 电池 |
KR1020210125159A KR102668902B1 (ko) | 2020-09-30 | 2021-09-17 | 전지 |
DE102021124609.1A DE102021124609A1 (de) | 2020-09-30 | 2021-09-23 | Batterie |
JP2023220896A JP2024039047A (ja) | 2020-09-30 | 2023-12-27 | 電池 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020166063A JP7463930B2 (ja) | 2020-09-30 | 2020-09-30 | 電池 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023220896A Division JP2024039047A (ja) | 2020-09-30 | 2023-12-27 | 電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022057678A JP2022057678A (ja) | 2022-04-11 |
JP7463930B2 true JP7463930B2 (ja) | 2024-04-09 |
Family
ID=80624207
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2020166063A Active JP7463930B2 (ja) | 2020-09-30 | 2020-09-30 | 電池 |
JP2023220896A Pending JP2024039047A (ja) | 2020-09-30 | 2023-12-27 | 電池 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2023220896A Pending JP2024039047A (ja) | 2020-09-30 | 2023-12-27 | 電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US12126053B2 (ja) |
JP (2) | JP7463930B2 (ja) |
KR (1) | KR102668902B1 (ja) |
DE (1) | DE102021124609A1 (ja) |
Citations (9)
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JP2016105348A (ja) | 2013-03-12 | 2016-06-09 | 三洋電機株式会社 | ラミネート外装電池 |
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JP2018060599A (ja) | 2016-09-30 | 2018-04-12 | 日立オートモティブシステムズ株式会社 | 角形二次電池 |
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JP2024039047A (ja) | 2024-03-21 |
JP2022057678A (ja) | 2022-04-11 |
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