CN2497437Y - Lithium ion polymer cell - Google Patents
Lithium ion polymer cell Download PDFInfo
- Publication number
- CN2497437Y CN2497437Y CN01234054U CN01234054U CN2497437Y CN 2497437 Y CN2497437 Y CN 2497437Y CN 01234054 U CN01234054 U CN 01234054U CN 01234054 U CN01234054 U CN 01234054U CN 2497437 Y CN2497437 Y CN 2497437Y
- Authority
- CN
- China
- Prior art keywords
- barrier film
- plate
- positive
- negative
- negative plate
- 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
- 229920000642 polymer Polymers 0.000 title claims abstract description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 16
- 239000011149 active material Substances 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 50
- 238000003475 lamination Methods 0.000 claims description 13
- 239000006183 anode active material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000006182 cathode active material Substances 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 7
- 238000005192 partition Methods 0.000 abstract 5
- 230000005611 electricity Effects 0.000 abstract 4
- 238000009823 thermal lamination Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a lithium-ion polymer battery, comprising an anode plate, a cathode plate and a partition membrane, wherein, both an anode electricity collecting body and a cathode electricity collecting body adopt a foil-type electricity collecting body, an active material layer is bonded on the surface of the foil-type electricity collecting body, the anode plate, the partition membrane and the cathode plate laminate directly in a pattern of repeating alternatively the anode plate, the partition membrane, the cathode plate, the partition membrane, the anode plate, the partition membrane and the cathode plate form the basic structure of the battery without thermal lamination. The utility model is simple in making technology with low cost and can be made into any shape according to the needs; meanwhile, the volume can be either very large or very small.
Description
Technical field
The utility model relates to a kind of battery, and what be specifically related to is a kind of lithium ion polymer battery.
Background technology
The structure of existing modal lithium ion polymer battery is as follows: its positive and negative plate adopts net type collector bodies such as copper mesh, aluminium net, anode and cathode active materials will be coated on the plastic tape base in advance, peel off from tape base again, become self-supported membrane, become positive plate, negative plate with the positive and negative collector body hot pressing of net type respectively then, wherein the mesh of the adhesive in the anode and cathode active materials layer by collector body realized from bonding and clamp net type collector body simultaneously together; Between positive and negative plate, be provided with barrier film, the three forms a cell by heat lamination, stack after with barrier film between a plurality of cells and become the battery essential structure, all positive collector bodies or negative collector body is welded together respectively and draw the both positive and negative polarity that becomes battery, at battery essential structure covering film is housed, in film, injects electrolyte.This lithium polymer battery exists following shortcoming: 1. positive and negative plate adopts net type collector body, and anode and cathode active materials will be coated with in advance becomes self-supported membrane, just makes positive and negative plate with net type collector body hot pressing then, cost an arm and a leg, complex process, operation is many, battery cost height; 2. battery essential structure complexity will be made cell earlier and the monomer pond be stacked again, complex manufacturing, and the extension performance of electrode slice is bad, and the shape of battery is limited, and volume is bigger.
Summary of the invention
The purpose of this utility model is at the above problem, provides a kind of cost low and can be made into the lithium ion polymer battery of different shape.
The purpose of this utility model is achieved in that the utility model comprises positive plate, negative plate and barrier film, positive plate and negative plate are made up of positive and negative collector body and anode and cathode active materials layer respectively, described positive and negative collector body is paper tinsel type collector body, active material layer is bonded in the surface of paper tinsel type collector body, and positive plate, barrier film and negative plate constitute the battery essential structure with the direct lamination of the repetition alternant of positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate.
The utility model also can behind the direct lamination of alternant be reeled positive plate, negative plate and barrier film repeating again, constitute the battery essential structure of shape such as cylindrical, prismatic, thereby can make shapes such as cylindrical, prismatic, taper shape to battery of the present utility model.
As further improvement, all barrier films belong to same whole barrier film in the utility model, and whole barrier film walked around positive plate and negative plate with the form of " S ", can more effectively prevent the short circuit between the positive and negative plate.
Technique effect of the present utility model is: 1. the utility model adopts paper tinsel shape collector body, compares with the battery that adopts the net form collector body, and cost reduces greatly; 2. positive and negative plate and barrier film directly constitute the battery essential structure to repeat the alternant lamination in the utility model, need not heat lamination, manufacture craft is simple, cost is low, and positive and negative plate ductility is good, battery can be made arbitrary shape as required, volume of battery can be very big also can be very little.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the end view of battery essential structure among the utility model embodiment one.
Fig. 2 is the profile of positive plate among Fig. 1.
Fig. 3 is the end view of battery essential structure among the utility model embodiment two.
Embodiment
As depicted in figs. 1 and 2, the lithium ion polymer battery of embodiment one comprises positive plate 2, negative plate 3 and barrier film 1, positive plate 2 is made up of positive collector body 4 and anode active material layer 5, negative plate is made up of negative collector body and anode active material layer, positive and negative collector body is Copper Foil, active material layer is bonded in the surface of Copper Foil, positive plate 2, barrier film 1 and negative plate 3 constitute the battery essential structure with the direct lamination of the repetition alternant of positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate, barrier film 1 is independent, discontinuous each other separately.
More than main what describe is the lithium ion polymer battery structure unlike the prior art of embodiment one, other structure is as described below, basic identical with prior art: the lug of all positive plates 2 behind the lamination is welded together, the lug of all negative plates 3 is welded together, and draw the positive and negative electrode that becomes battery respectively with after the positive and negative flow collection sheet welding, at battery essential structure covering aluminum plastic film is housed, in aluminum plastic film, is marked with electrolyte, promptly constitute lithium ion polymer battery of the present utility model.The utility model is gone back the encapsulation of available metal shell, as aluminum hull, box hat etc. except that with the aluminum plastic film.
As shown in Figure 3, embodiment two is with the difference of embodiment one: barrier films 12 all among the embodiment two belong to same whole barrier film, whole barrier film 12 walked around positive plate 22 and negative plate 32 with the form of " S ", thereby positive plate 22 and negative plate 32 are isolated to get up, can more effectively prevent the short circuit between the positive and negative plate like this.
Positive and negative plate among the embodiment one and barrier film can be cut into different shape such as triangle, circle, square etc., thereby obtain the lithium ion polymer battery of various profiles.
Positive and negative plate among the embodiment one and barrier film can be cut into different shape such as triangle, circle, square etc., thereby obtain the lithium ion polymer battery of various profiles.
Positive plate, negative plate and barrier film can further be reeled with after repeating the direct lamination of alternant among embodiment one and the embodiment two, constitute the battery essential structure of multiple shape, as cylindrical, prismatic etc.
Preferred aluminium foil of paper tinsel type collector body and Copper Foil in the utility model.
In the utility model, positive plate, barrier film and negative plate are with the direct lamination of repetition alternant of positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate, the words is not positive plate, barrier film and negative plate are restricted to must be by the order lamination of positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate, but also can repeat alternately lamination by other order, as: the order of pressing negative plate/barrier film/positive plate/barrier film/negative plate/barrier film/positive plate, or press the order of barrier film/positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate/barrier film, or the like, and just, the quantity of negative plate is determined according to concrete Capacity design.
Claims (5)
1. lithium ion polymer battery, comprise positive plate, negative plate and barrier film, positive plate and negative plate are made up of positive and negative collector body and anode and cathode active materials layer respectively, it is characterized in that: described positive and negative collector body is paper tinsel type collector body, active material layer is bonded in the surface of paper tinsel type collector body, and positive plate, barrier film and negative plate constitute the battery essential structure with the direct lamination of the repetition alternant of positive plate/barrier film/negative plate/barrier film/positive plate/barrier film/negative plate.
2. lithium ion polymer battery according to claim 1 is characterized in that: described positive plate, negative plate and barrier film constitute the battery essential structure to repeat to reel behind the direct lamination of alternant again.
3. lithium ion polymer battery according to claim 1 and 2 is characterized in that: all barrier films belong to same whole barrier film, and whole barrier film walked around positive plate and negative plate with the form of " S ".
4. lithium ion polymer battery according to claim 1 and 2 is characterized in that: described barrier film is independent, discontinuous each other separately.
5. lithium ion polymer battery according to claim 1 is characterized in that: described paper tinsel type collector body is preferably Copper Foil or aluminium foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01234054U CN2497437Y (en) | 2001-08-16 | 2001-08-16 | Lithium ion polymer cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01234054U CN2497437Y (en) | 2001-08-16 | 2001-08-16 | Lithium ion polymer cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2497437Y true CN2497437Y (en) | 2002-06-26 |
Family
ID=33647667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01234054U Expired - Lifetime CN2497437Y (en) | 2001-08-16 | 2001-08-16 | Lithium ion polymer cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2497437Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043667A1 (en) * | 2003-10-28 | 2005-05-12 | Byd Company Limited | Lithium ion secondary battery |
| CN103579684A (en) * | 2012-07-31 | 2014-02-12 | 华为技术有限公司 | Lithium ion battery and battery core thereof |
| CN113644229A (en) * | 2021-08-12 | 2021-11-12 | 蜻蜓实验室(深圳)有限公司 | Combined electrode, folding battery, winding battery and battery pack |
-
2001
- 2001-08-16 CN CN01234054U patent/CN2497437Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043667A1 (en) * | 2003-10-28 | 2005-05-12 | Byd Company Limited | Lithium ion secondary battery |
| CN103579684A (en) * | 2012-07-31 | 2014-02-12 | 华为技术有限公司 | Lithium ion battery and battery core thereof |
| CN113644229A (en) * | 2021-08-12 | 2021-11-12 | 蜻蜓实验室(深圳)有限公司 | Combined electrode, folding battery, winding battery and battery pack |
| CN113644229B (en) * | 2021-08-12 | 2022-08-09 | 蜻蜓实验室(深圳)有限公司 | Combined electrode, folding battery, winding battery and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YOKU ENERGY (SHENZHEN) LTD.; PATENTEE Free format text: FORMER OWNER: PAN JIEMIN Effective date: 20051104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20051104 Address after: 518103 Guangdong Province, Fuyong Shenzhen Bao'an District Street Huaide Chui Sea industrial district four building one or two floor Co-patentee after: Yoku Energy (Zhangzhou) Co., Ltd. Patentee after: Branch Energy (Shenzhen) Co. Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Town Pearl Pearl Village Industrial District 10 Building 2 floor Patentee before: Pan Jiemin |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110816 Granted publication date: 20020626 |