CN202662704U - Flexibly-packaged lithium ion battery - Google Patents
Flexibly-packaged lithium ion battery Download PDFInfo
- Publication number
- CN202662704U CN202662704U CN2012202340875U CN201220234087U CN202662704U CN 202662704 U CN202662704 U CN 202662704U CN 2012202340875 U CN2012202340875 U CN 2012202340875U CN 201220234087 U CN201220234087 U CN 201220234087U CN 202662704 U CN202662704 U CN 202662704U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- battery
- ion battery
- holes
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a flexibly-packaged lithium ion battery, which comprises a battery core with a positive tab and a negative tab, a packaging foil for accommodating the battery core and electrolyte filled into the battery core. The packaging foil is provided with a top sealing edge which is provided with grooves and an insulating gasket, wherein the positive and negative tabs are led out through the grooves, and the insulating gasket is sleeved on the positive and negative tabs, and wraps the outer surface of the top sealing edge. Compared with the prior art, the flexibly-packaged lithium ion battery has the advantages that the insulating gasket is sleeved on the positive and negative tabs, and wraps the outer surface of the top sealing edge, so that increase of the whole dimension of the battery is avoided; the end face of the packaging foil on the top sealing edge is protected by the insulating gasket, so that the problem of short circuit of the end face is solved; and the packaging foil on the top sealing edge is protected by the insulating gasket, so that the packaging foil can be prevented from being scratched when a temperature cutting-off device is arranged on the battery, and the short-circuit risk of the battery is further lowered.
Description
Technical field
The utility model belongs to technical field of lithium ion, relates in particular to a kind of flexible packing lithium ion battery.
Background technology
Lithium ion battery is as a kind of secondary cell of environmental protection, is widely used in fields such as portable set such as mobile phone, video camera, notebook computers.Yet, along with the development of modern society, numerous portable sets all stride forward to intelligent, multifunction, in order to satisfy it to the requirement of capacity and power, guarantee the service time that it is sufficient, just must have higher energy density as the lithium ion battery of its power source.
The mode of the common a plurality of cell parallels of employing or series connection improves the energy density of battery in the industry, yet a plurality of cell parallels or when series connection in the prior art, the security incident that causes owing to battery short circuit often can appear, trace it to its cause and mainly contain following two aspect factors: when being cell parallel on the one hand, two batteries can be head to head, namely the anode ear of two batteries links to each other respectively with negative electrode lug, this is easy to touch on the package foil of another battery closedtop position with regard to the lug that causes a battery, and the aluminium lamination that normally conduct electricity in the package foil intermediate layer, if wherein the package foil aluminium lamination of any one battery is connected with battery pole ear when encapsulation, and this battery packages paper tinsel aluminium lamination contacts with the lug of comparative electrode when cell parallel, and this just will cause battery short circuit; On the other hand when a plurality of cell parallels or series connection; overheated in order to prevent battery; often can the temperature cutoff device be installed in each battery closedtop position; and when a plurality of battery pack are dressed up final battery; the temperature cutoff device is easy to plane packaging paper tinsel on the scratch battery closedtop position owing to be squeezed, and causes flexible packing lithium ion battery to be short-circuited.
In order to reduce the short-circuit risks of battery, generally add at present one deck insulation gummed paper in the industry in closedtop position, flexible packing lithium ion battery front (for example: CN201303025Y).But this kind gummed paper can only be protected the package foil on plane on the battery closedtop position, and is like water off a duck's back for the short circuit that package foil end face on the battery closedtop position causes, and this single face insulation gummed paper also is easy to perk in cell processing course.
In view of this, necessaryly provide a kind of and neither affect the overall dimensions of battery, can reduce the flexible packing lithium ion battery of battery short circuit risk again.
The utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provide a kind of flexible packing lithium ion battery, this battery can reduce the short-circuit risks of battery greatly under the prerequisite that does not affect the battery core overall dimensions.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of flexible packing lithium ion battery, comprise the battery core that is provided with anode ear and negative electrode lug, be used for holding the package foil of described battery core and be filled in electrolyte in the described battery core, described package foil is provided with the closedtop limit, described closedtop limit is provided with the groove that can allow described anode ear and described negative electrode lug pass, described closedtop limit is provided with insulation spacer, described insulation spacer is sheathed on described anode ear and described negative electrode lug, and described insulation spacer is coated on the outer surface on described closedtop limit.
As a kind of improvement of the utility model flexible packing lithium ion battery, described anode ear and described negative electrode lug are provided with the hot melt blob of viscose, and described hot melt blob of viscose is placed in described groove.
As a kind of improvement of the utility model flexible packing lithium ion battery, described insulation spacer is adhered to the outer surface on described closedtop limit.
As a kind of improvement of the utility model flexible packing lithium ion battery, described insulation spacer is provided with two rectangular through holes, and described insulation spacer is sheathed on described anode ear and described negative electrode lug by two through holes.
As a kind of improvement of the utility model flexible packing lithium ion battery, the centre-to-centre spacing between two described through holes equates with the centre-to-centre spacing between described anode ear and the described negative electrode lug.
A kind of improvement as the utility model flexible packing lithium ion battery, the length of two described through holes is all more than or equal to the width of described anode ear, the length of two described through holes is all more than or equal to the width of described negative electrode lug, and the length of two described through holes all is less than or equal to the length of described groove.
A kind of improvement as the utility model flexible packing lithium ion battery, the width of two described through holes is all more than or equal to the thickness of described anode ear, the width of two described through holes is all more than or equal to the thickness of described negative electrode lug, and the width of two described through holes all is less than or equal to the width of described groove.
As a kind of improvement of the utility model flexible packing lithium ion battery, described insulation spacer be shaped as rectangle.
As a kind of improvement of the utility model flexible packing lithium ion battery, described closedtop limit also is provided with the temperature cutoff device, and described temperature cutoff device is arranged at described insulation spacer outer surface.
With respect to prior art, the beneficial effects of the utility model are: sheathed insulation spacer on anode ear and negative electrode lug, and insulation spacer is coated on the outer surface (comprising the end face of the package foil on the closedtop limit and two sides on closedtop limit) on closedtop limit, not only can not increase the overall dimensions of battery, and insulation spacer protected the package foil end face on the closedtop limit, solved the end face short circuit problem; Insulation spacer has been protected the package foil on plane, closedtop limit, scratch package foil in the time of can preventing from the battery temperature cutoff device being installed, and then reduce the battery short circuit risk so that battery when carrying out serial or parallel connection when obtaining higher energy density, can also obtain higher security performance; In addition, insulation spacer is the integrated design, and excellent rate is high, and is easy to use.
Description of drawings
Fig. 1 is the structural representation during the coated insulation pad not on the closedtop limit of the utility model flexible packing lithium ion battery.
Fig. 2 is the structural representation of insulation spacer in the utility model.
Structural representation when Fig. 3 is the closedtop limit sheathed insulation spacer of the utility model flexible packing lithium ion battery.
Fig. 4 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model and useful technique effect thereof are elaborated, still, execution mode of the present utility model is not limited to this.
See also Fig. 1 to 4, a kind of flexible packing lithium ion battery that the utility model provides, comprise the battery core 1 that is provided with anode ear 11 and negative electrode lug 12, be used for holding the package foil 4 of battery core 1 and be filled in electrolyte in the battery core 1, package foil 4 is provided with closedtop limit 41, closedtop limit 41 is provided with the groove 42 that can allow anode ear 11 and negative electrode lug 12 pass, closedtop limit 41 is provided with insulation spacer 3, insulation spacer 3 is sheathed on anode ear 11 and negative electrode lug 12, and insulation spacer 3 is coated on the outer surface on closedtop limit 41.
Wherein, anode ear 11 and negative electrode lug 12 are provided with hot melt blob of viscose 2, and hot melt blob of viscose 2 is placed in groove 42, so that hot melt blob of viscose 2 can not surpass battery core 1 main body and take up space, can the size of battery not impacted, thereby do not affect the energy density of battery.Wherein, the effect of hot melt blob of viscose 2 is further insulation, prevents short circuit.
Insulation spacer 3 is adhered to the outer surface on closedtop limit 41, links with battery to be integrated, can perk, and more firm.
Insulation spacer 3 is provided with two rectangular through holes 31, and insulation spacer 3 is sheathed on anode ear 11 and negative electrode lug 12(as shown in Figures 2 and 3 by two through holes 31).Because anode ear 11 and negative electrode lug 12 are rectangle, the through hole on the insulation spacer 3 is set to rectangle, is convenient to being inserted in of insulation spacer 3.
Centre-to-centre spacing between two through holes 31 equates with the centre-to-centre spacing between anode ear 11 and the negative electrode lug 12, anode ear 11 and negative electrode lug 12 can be fallen in the rectangular through holes 31 just.
The length of two through holes 31 is all more than or equal to the width of anode ear 11, and the length of two through holes 31 is all more than or equal to the width of negative electrode lug 12, and the length of two through holes 31 all is less than or equal to the length of groove 42.
The width of two through holes 31 is all more than or equal to the thickness of anode ear 11, the width of two through holes 31 is all more than or equal to the thickness of negative electrode lug 12, and the width of two through holes 31 all is less than or equal to the width of groove 42, to guarantee that anode ear 11 and negative electrode lug 12 can pass from rectangular through holes 31 smoothly, can guarantee again can wrap up fully after insulation spacer 3 is installed the package foil end face at groove 42 places simultaneously.
Insulation spacer 3 be shaped as rectangle, be convenient to cut and coat.
In a word, novelly cooperate by the groove 42 that arranges on insulation spacer and the battery closedtop limit 41, under the prerequisite that does not affect the battery core overall dimensions, can greatly reduce the short-circuit risks of battery core.
The according to the above description announcement of book and guidance, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the utility model just for convenience of description.
Claims (9)
1. flexible packing lithium ion battery, comprise the battery core that is provided with anode ear and negative electrode lug, be used for holding the package foil of described battery core and be filled in electrolyte in the described battery core, described package foil is provided with the closedtop limit, described closedtop limit is provided with the groove that can allow described anode ear and described negative electrode lug pass, described closedtop limit is provided with insulation spacer, it is characterized in that: described insulation spacer is sheathed on described anode ear and described negative electrode lug, and described insulation spacer is coated on the outer surface on described closedtop limit.
2. flexible packing lithium ion battery according to claim 1, it is characterized in that: described anode ear and described negative electrode lug are provided with the hot melt blob of viscose, and described hot melt blob of viscose is placed in described groove.
3. flexible packing lithium ion battery according to claim 1, it is characterized in that: described insulation spacer is adhered to the outer surface on described closedtop limit.
4. flexible packing lithium ion battery according to claim 2, it is characterized in that: described insulation spacer is provided with two rectangular through holes, and described insulation spacer is sheathed on described anode ear and described negative electrode lug by two through holes.
5. flexible packing lithium ion battery according to claim 4 is characterized in that: the centre-to-centre spacing between two described through holes equates with the centre-to-centre spacing between described anode ear and the described negative electrode lug.
6. flexible packing lithium ion battery according to claim 4, it is characterized in that: the length of two described through holes is all more than or equal to the width of described anode ear, the length of two described through holes is all more than or equal to the width of described negative electrode lug, and the length of two described through holes all is less than or equal to the length of described groove.
7. flexible packing lithium ion battery according to claim 4, it is characterized in that: the width of two described through holes is all more than or equal to the thickness of described anode ear, the width of two described through holes is all more than or equal to the thickness of described negative electrode lug, and the width of two described through holes all is less than or equal to the width of described groove.
8. flexible packing lithium ion battery according to claim 1 is characterized in that: described insulation spacer be shaped as rectangle.
9. flexible packing lithium ion battery according to claim 1, it is characterized in that: described closedtop limit also is provided with the temperature cutoff device, and described temperature cutoff device is arranged at described insulation spacer outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202340875U CN202662704U (en) | 2012-05-23 | 2012-05-23 | Flexibly-packaged lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202340875U CN202662704U (en) | 2012-05-23 | 2012-05-23 | Flexibly-packaged lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662704U true CN202662704U (en) | 2013-01-09 |
Family
ID=47457588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202340875U Expired - Lifetime CN202662704U (en) | 2012-05-23 | 2012-05-23 | Flexibly-packaged lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662704U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109565027A (en) * | 2016-07-28 | 2019-04-02 | 三洋电机株式会社 | Secondary cell and its manufacturing method |
| CN112086585A (en) * | 2019-06-14 | 2020-12-15 | 东莞新能德科技有限公司 | Battery with a battery cell |
| CN113471639A (en) * | 2020-03-30 | 2021-10-01 | 东莞新能德科技有限公司 | Battery cell and battery with same |
| WO2021195927A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery packaging structure |
-
2012
- 2012-05-23 CN CN2012202340875U patent/CN202662704U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109565027A (en) * | 2016-07-28 | 2019-04-02 | 三洋电机株式会社 | Secondary cell and its manufacturing method |
| CN112086585A (en) * | 2019-06-14 | 2020-12-15 | 东莞新能德科技有限公司 | Battery with a battery cell |
| CN112086585B (en) * | 2019-06-14 | 2023-09-26 | 东莞新能德科技有限公司 | Battery cell |
| CN113471639A (en) * | 2020-03-30 | 2021-10-01 | 东莞新能德科技有限公司 | Battery cell and battery with same |
| CN113471639B (en) * | 2020-03-30 | 2024-03-19 | 东莞新能德科技有限公司 | Battery cell and battery with same |
| WO2021195927A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery packaging structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203218388U (en) | Flexible-package lithium-ion unit cell | |
| CN202662704U (en) | Flexibly-packaged lithium ion battery | |
| CN202134604U (en) | Cell of lithium battery with flexible package and lithium battery with flexible package | |
| CN201985214U (en) | High-safety flexible packaging lithium ion battery | |
| CN204614821U (en) | Electrochemical energy storage device encapsulating structure and packaging system thereof | |
| CN204966577U (en) | Take polymer battery of fillet utmost point ear | |
| CN203150623U (en) | Top sealing enclosure of aluminum plastic film soft packaged lithium ion cell | |
| CN203150631U (en) | Flexible packaging lithium ion battery | |
| CN204130623U (en) | A kind ofly carry the pole piece of lug and use the lithium ion battery of this pole piece | |
| CN211980808U (en) | Soft package lithium ion battery cell structure | |
| CN202503058U (en) | Lug position structure for positive electrode piece and negative electrode piece of polymer lithium ion battery | |
| CN205050946U (en) | Lithium ion battery device | |
| CN204652441U (en) | Portable terminal device bonnet battery | |
| CN204464384U (en) | Secondary cell | |
| CN205177958U (en) | Flexible package lithium ion battery | |
| CN204424323U (en) | A kind of polymer Li-ion battery | |
| CN202737051U (en) | Coiled flexibly-packaged lithium ion cell | |
| CN202662695U (en) | Lithium ion battery | |
| CN202623432U (en) | Packaging foil for built-in lithium ion battery | |
| CN204348837U (en) | A kind of safe lithium ion battery | |
| CN207800749U (en) | A kind of protective case for lithium-sulfur cell lug | |
| CN201084785Y (en) | A polymer battery capacity-expansion structure | |
| CN205177961U (en) | Lithium ion battery | |
| CN202495553U (en) | Lithium ion battery and protective board thereof | |
| CN203095960U (en) | Side edge adhesive tape used for soft-packed lithium ion batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |