CN202695638U - Button type lithium ion battery - Google Patents
Button type lithium ion battery Download PDFInfo
- Publication number
- CN202695638U CN202695638U CN2012202668038U CN201220266803U CN202695638U CN 202695638 U CN202695638 U CN 202695638U CN 2012202668038 U CN2012202668038 U CN 2012202668038U CN 201220266803 U CN201220266803 U CN 201220266803U CN 202695638 U CN202695638 U CN 202695638U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- lid
- monomer
- metal base
- 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 - Fee Related
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
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a button type lithium ion battery which comprises a shell, a sealing ring, a cover body, a pole core and electrolyte, wherein a containing cavity is formed by encircling the shell, the cover body and the sealing ring; the pole core and the electrolyte are arranged in the containing cavity; the pole core comprises a positive pole plate, a negative pole plate and a diaphragm; the positive pole plate comprises a positive pole metal base material and a cathode material coated on the positive pole metal base material; the negative pole plate comprises a negative pole metal base material and an anode material coated on the negative pole metal base material; the positive pole plate is connected with the shell in a conducting way; the negative pole plate is connected with the cover body in a conducting way; the button type lithium ion battery is characterized in that the end part of one end of the positive pole metal base material extends to the parts between the inner wall of the shell and the bottom surface of the sealing ring along the inner wall of the shell; and after being packaged, the battery is pressed by the sealing ring at the inner wall of the shell, so that the positive pole plate is connected with the shell in a conducting way. The button type lithium ion battery has the beneficial effects of being stable in performance and simple in manufacturing technology.
Description
Technical field
The utility model relates to lithium ion battery, especially chargeable coin shape lithium ion battery.
Background technology
The coin shape lithium ion battery is a kind of battery commonly used, and its pole piece comprises positive plate, barrier film and negative plate, mainly contains takeup type structure and laminated structure.Mostly there is following problem in the coin shape lithium ion battery of prior art: takeup type structure fabrication technique is simple, but space availability ratio is low, the laminated structure space availability ratio is high, but complex manufacturing technology, when coiling or stacked moulding, positive plate, barrier film and negative plate contraposition difficulty are large, and operation easily produces deviation, takeup type pole piece pole piece edge powder in charge and discharge cycles continues random coming off, and battery capacity is accelerated decay and with potential safety hazard; Anodal the connecting in the equal battery container of the processing procedure link chamber with housing of existing pole piece realized, mainly taking sheet metal folder positive-pole base material and housing welding or positive-pole base material to be close to the inner walls mode connects, folder weldering mode is effective, but operation easier is large, be close to mode technique simple, but poor reliability, simultaneously, limited host cavity spatial limitation more than connect the application of mode in the button-type battery of small size more.
Chargeable coin shape lithium ion battery also exists efficiency for charge-discharge to hang down and the short problem of cycle life especially ultra-thin coin shape lithium ion battery.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of coin shape lithium ion battery to overcome the defective of aforementioned prior art.
Technical problem of the present utility model is solved by following technological means:
A kind of coin shape lithium ion battery comprises housing, sealing ring, lid, pole piece and electrolyte; Described housing, lid and sealing ring surround host cavity, and described pole piece and described electrolyte level are in described host cavity; Described pole piece comprises positive plate, negative plate and barrier film, described positive plate comprises cathode metal base material and the positive electrode that is coated on the cathode metal base material, described negative plate comprises negative pole metal base and the negative material that is coated on the negative pole metal base, described positive plate and described housing connect, described negative plate and described lid connect, wherein, one end end of described cathode metal base material extends between the basal surface of the inwall of described housing and described sealing ring along the inwall of described housing, thus after the cell package by described sealing ring be pressed in described housing inwall so that positive plate and described housing connect.
Preferably:
Also comprise the insulated barriers layer that is located between described housing and the lid, form the loop for blocking-up housing, pole piece side, lid by the electrolyte electrical connection and with external circuit.
Described insulated barriers layer is located on the inwall of described lid, and described insulated barriers layer covers on the described lid inwall except the remaining surface for the some welding position that is connected with cathode pole piece.
Described insulated barriers layer is the insulating paper that sticks on the described lid inwall, and described insulating paper is provided with and the described some breach that the welding position position is relative.
Described barrier film is diaphragm bag, and described positive plate places described diaphragm bag to form anodal membrane combination, and this positive pole membrane combination and described negative plate vertical interlaced are folded to form described pole piece.
The negative pole metal base of described negative plate one end end extends to form the spot-welding part that is connected for described lid to the side of negative plate.
Described negative plate comprises a plurality of the first monomers and a plurality of the first connecting portion, link to each other by described connecting portion between the first adjacent monomer, described anodal membrane combination comprises a plurality of the second monomers and a plurality of the second connecting portion, and the second adjacent monomer links to each other by described the second connecting portion; Described the first monomer is identical with described the second monomer shape, and described anodal membrane combination and described negative plate are respectively along described the second connecting portion and folding described the first monomer and the staggered described pole piece of stacked formation of the second monomer of making of the first connecting portion vertical interlaced.
Described the first monomer and described the second monomer are circle, quadrangle, hexagon, octagon or by at least two straight lines and two symmetric shapes that camber line alternately is connected to form.
Described the first monomer integral body is rounded but both sides have respectively one section straight line, and described straight line is parallel with the negative plate length direction.
Compared with prior art, positive plate of the present utility model connects mode and has and connect stable and the simple beneficial effect of manufacture craft; Preferred version arranges efficiency for charge-discharge and cycle life that barrier layer is conducive to improve the coin shape lithium ion battery; The interfolded mode of pole piece has high spatial utilance advantage and the simple advantage of coiled manufacture craft of stacked mode simultaneously; Adopt the mode of diaphragm bag clad anode sheet can avoid the pole piece dry linting, reduce cell safety hidden danger.
Description of drawings
Fig. 1 is the stereogram of the battery of the utility model specific embodiment;
Fig. 2 is the profile of the battery of the utility model specific embodiment;
Fig. 3 is the structural representation of the positive plate of the utility model specific embodiment;
Fig. 4 is the structural representation of the positive plate combination of the utility model specific embodiment;
Fig. 5 is the structure front view of the negative plate of the utility model specific embodiment;
Fig. 6 is the structural perspective of the negative plate of the utility model specific embodiment;
Fig. 7 is the structural perspective of the pole piece of the utility model specific embodiment;
Fig. 8 is the upward view after the battery of Fig. 2 removes housing;
Fig. 9 is the structural representation of insulated barriers layer of the battery of Fig. 2;
Figure 10 is the principle schematic of the staggered stacked formation pole piece of the utility model specific embodiment.
Embodiment
Preferred embodiment the utility model is described in further detail for the below's contrast accompanying drawing and combination.
As shown in Figure 1, 2, the coin shape lithium ion battery of the present embodiment mainly is comprised of housing 100, sealing ring 200, lid 300, pole piece 400 and electrolyte (not shown); Housing 100, lid 300 surround host cavity 600 with sealing ring 200, and pole piece 400 and electrolyte level are in this host cavity 600; Pole piece 400 mainly is comprised of positive plate 410, negative plate 420 and barrier film 430; Positive plate 410 comprises cathode metal base material 411 and the positive electrode that is coated on the cathode metal base material 411, negative plate 420 comprises negative pole metal base 421 and the negative material that is coated on the negative pole metal base, positive plate 410 connects with housing 100, and 420 of negative plates and lid 300 connect; As shown in Figure 3, in the present embodiment, one end end of cathode metal base material 411 extends between the basal surface of the inwall of housing 100 and sealing ring 200 along the inwall of housing 100, thus after the cell package sealed circle 200 be pressed in housing 100 inwall so that positive plate 410 connect with housing.
Because being crimped on the inwall of housing 100, the cathode metal base material 411 sealed circles of the end that positive plate and housing connect connect with housing, need not to carry out spot welding, simpler with respect to metal clip weldering mode manufacturing process, connect more reliable, stable with respect to adopting tradition to be close to mode simultaneously.
Find after deliberation, the coin shape lithium ion battery is in charging process, housing, the pole piece side, lid can form take electrolyte as medium to be electrically connected with external circuit (being charging circuit) formation loop and cause the part electric energy not to be converted into the chemical energy of battery through battery core inside, the part electric current take electrolyte as medium from housing, the pole piece side flows to lid, thereby produce electric arc at inside battery, cause inside battery moment high temperature, and then association high-temperature oxydation deposit, this deposit is progressively piled up at the lid inwall, directly affect efficiency for charge-discharge and the circulation of battery, cause battery efficiency low, life-span is short.
For overcoming the problems referred to above, the battery of the present embodiment also comprises insulated barriers layer 500, and this insulated barriers layer 500 is located between housing and the lid and forms the loop for blocking-up housing 100 pole pieces 400 sides, lid 300 by the electrolyte electrical connection and with external circuit.Insulated barriers layer 500 preferably is located at housing 100 inwalls or lid 300 inwalls, and the remaining surface outside covering shell 100 inwalls or lid 300 inwalls and the position that pole piece is connected; Because the metal base 411 of the end of the positive plate 410 of the present embodiment extends to the basal surface of sealing ring 200 along inner walls, cause insulated barriers layer 500 to be arranged on the operation easier of housing 100 inwalls large, therefore, as shown in Figure 8, the insulated barriers layer 500 of the present embodiment is located on the inwall of lid 300, and insulated barriers layer 500 covers on lid 300 inwalls except the remaining surface for the some welding position that is connected with cathode pole piece; As shown in Figure 9, insulated barriers layer 500 can be the insulating paper that sticks on the described lid inwall, needs on the insulating paper to arrange and the described some breach that the welding position position is relative, and in the present embodiment, insulated barriers layer 500 is annular insulating papers; Certainly, except insulating paper, insulated barriers layer 500 also can adopt other insulating material of insulation spacer, insulating cement etc. or adopt the mode of coating insulating coating to realize.
As shown in Figure 4, the barrier film of the present embodiment 430 adopts the form of diaphragm bags, and it adopts the opposite side of the natural edge that produces by heat seal or gluing doubling after the common diaphragm doubling to make it to be sealed to bag-shaped, and one of adjacent side of described natural edge is also salable; Positive plate 410 places diaphragm bag and diaphragm bag to be combined into anodal diaphragm 431 combinations, anodal membrane combination 431 is comprised of a plurality of the second monomers 4311 and a plurality of the second connecting portion 4312, thereby connects the anodal membrane combination 431 that forms band shape by the second connecting portion 4312 between the second adjacent monomer 4311.Shown in Fig. 5,6, the negative pole metal base 421 of negative plate 420 1 end ends extends to form the spot-welding part 422 that is connected for lid 430 to the side of negative plate 420; Negative plate 420 comprises a plurality of the first monomers 4211 and a plurality of the first connecting portion 4212, passes through the described connecting portion 4212 continuous negative plates 420 that form band shape between the first adjacent monomer 4211.The present embodiment adopts anodal membrane combination 431 and the folding mode of negative plate 420 vertical interlaceds is formed the pole piece 400 with multilayered electrochemical conversion zone, concrete grammar is: as shown in figure 10, first monomer of first monomers of anodal membrane combination 431 1 end ends and negative plate 420 1 end ends is overlapping, and make anodal membrane combination 431 vertical with negative plate 420, then with anodal membrane combination 431 and described negative plate 420 respectively along folding the first monomer 4211 and the second monomer 4311 stacked formation pole pieces 400 that interlock that make of described the second connecting portion 4312 and the first connecting portion 4212 vertical interlaceds, arrow X indication is the folding direction of current negative plate 420 among Figure 10, and arrow Y is the folding direction of anodal diaphragm group.As shown in Figure 7, because the spot-welding part 422 of negative plate 420 is positioned at the side of negative plate, so interfolded bonnet spot-welding part 422 and cathode metal base material 411 extended parts are in the opposite side of pole piece, more are convenient to rubberizing and tie up.
The shape of the first monomer 4211 and described the second monomer 4311 needs identical, can be circle, quadrangle, hexagon, octagon or by at least two straight lines and two symmetric shapes that camber line alternately is connected to form.For ease of folding, guarantee to try one's best again simultaneously large space availability ratio, the first monomer 4211 of the present utility model and the second monomer 4311 are whole rounded but both sides have respectively the one section straight line parallel with anodal membrane combination or negative plate length direction.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; can also make some being equal to substitutes or obvious modification, and performance or purposes are identical, all should be considered as belonging to protection range of the present utility model.
Claims (9)
1. a coin shape lithium ion battery comprises housing, sealing ring, lid, pole piece and electrolyte; Described housing, lid and sealing ring surround host cavity, and described pole piece and described electrolyte level are in described host cavity; Described pole piece comprises positive plate, negative plate and barrier film, described positive plate comprises cathode metal base material and the positive electrode that is coated on the cathode metal base material, described negative plate comprises negative pole metal base and the negative material that is coated on the negative pole metal base, described positive plate and described housing connect, described negative plate and described lid connect, it is characterized in that: an end end of described cathode metal base material extends between the basal surface of the inwall of described housing and described sealing ring along the inwall of described housing, thus after the cell package by described sealing ring be pressed in described housing inwall so that positive plate and described housing connect.
2. coin shape lithium ion battery according to claim 1 is characterized in that: also comprise the insulated barriers layer that is located between described housing and the lid, form the loop for blocking-up housing, pole piece side, lid by the electrolyte electrical connection and with external circuit.
3. coin shape lithium ion battery according to claim 2, it is characterized in that: described insulated barriers layer is located on the inwall of described lid, and described insulated barriers layer covers on the described lid inwall remaining surface except the some welding position that is used for being connected with cathode pole piece.
4. coin shape lithium ion battery according to claim 3, it is characterized in that: described insulated barriers layer is the insulating paper that sticks on the described lid inwall, described insulating paper is provided with and the described some breach that the welding position position is relative.
5. coin shape lithium ion battery according to claim 1, it is characterized in that: described barrier film is diaphragm bag, described positive plate places described diaphragm bag to form anodal membrane combination, and this positive pole membrane combination and described negative plate vertical interlaced are folded to form described pole piece.
6. coin shape lithium ion battery according to claim 5, it is characterized in that: the negative pole metal base of described negative plate one end end extends to form the spot-welding part that is connected for described lid to the side of negative plate.
7. according to claim 5 or 6 described coin shape lithium ion batteries, it is characterized in that: described negative plate comprises a plurality of the first monomers and a plurality of the first connecting portion, link to each other by described connecting portion between the first adjacent monomer, described anodal membrane combination comprises a plurality of the second monomers and a plurality of the second connecting portion, and the second adjacent monomer links to each other by described the second connecting portion; Described the first monomer is identical with described the second monomer shape, and described anodal membrane combination and described negative plate are respectively along described the second connecting portion and folding described the first monomer and the staggered described pole piece of stacked formation of the second monomer of making of the first connecting portion vertical interlaced.
8. coin shape lithium ion battery according to claim 7 is characterized in that: described the first monomer and described the second monomer are circle, quadrangle, hexagon, octagon or by at least two straight lines and two symmetric shapes that camber line alternately is connected to form.
9. coin shape lithium ion battery according to claim 8 is characterized in that: described the first monomer is whole rounded but both sides have respectively one section straight line, and described straight line is parallel with the negative plate length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202668038U CN202695638U (en) | 2012-06-07 | 2012-06-07 | Button type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202668038U CN202695638U (en) | 2012-06-07 | 2012-06-07 | Button type lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695638U true CN202695638U (en) | 2013-01-23 |
Family
ID=47551207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202668038U Expired - Fee Related CN202695638U (en) | 2012-06-07 | 2012-06-07 | Button type lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695638U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253286A (en) * | 2013-06-26 | 2014-12-31 | 东莞市振华新能源科技有限公司 | Manufacturing method of high-energy-density button lithium ion battery |
| CN109088090A (en) * | 2018-10-17 | 2018-12-25 | 深圳市迪丰能源科技有限公司 | A kind of button cell and preparation method thereof with winding patterns |
| CN110112456A (en) * | 2019-06-06 | 2019-08-09 | 东莞市能优能源科技有限公司 | Lap wound battery core and the method for folding battery core and being utilized respectively its production battery |
| CN110289451A (en) * | 2019-07-03 | 2019-09-27 | 惠州市金芯科技有限公司 | A kind of button lithium battery and preparation method thereof |
| CN114361660A (en) * | 2021-05-21 | 2022-04-15 | 北京卫蓝新能源科技有限公司 | Square shell battery cell and battery module |
-
2012
- 2012-06-07 CN CN2012202668038U patent/CN202695638U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253286A (en) * | 2013-06-26 | 2014-12-31 | 东莞市振华新能源科技有限公司 | Manufacturing method of high-energy-density button lithium ion battery |
| CN109088090A (en) * | 2018-10-17 | 2018-12-25 | 深圳市迪丰能源科技有限公司 | A kind of button cell and preparation method thereof with winding patterns |
| CN109088090B (en) * | 2018-10-17 | 2024-03-22 | 深圳市迪丰能源科技有限公司 | Button cell with winding mode and manufacturing method thereof |
| CN110112456A (en) * | 2019-06-06 | 2019-08-09 | 东莞市能优能源科技有限公司 | Lap wound battery core and the method for folding battery core and being utilized respectively its production battery |
| CN110112456B (en) * | 2019-06-06 | 2024-05-03 | 东莞市能优能源科技有限公司 | Lap wound cell and folded cell and method for manufacturing battery by using same |
| CN110289451A (en) * | 2019-07-03 | 2019-09-27 | 惠州市金芯科技有限公司 | A kind of button lithium battery and preparation method thereof |
| CN114361660A (en) * | 2021-05-21 | 2022-04-15 | 北京卫蓝新能源科技有限公司 | Square shell battery cell and battery module |
| CN114361660B (en) * | 2021-05-21 | 2024-05-24 | 北京市蓝鹏瑞驰科技有限公司 | Square shell cell and battery module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104871358B (en) | Battery cell including hierarchic structure | |
| CN101401250B (en) | A soft packaged and high capacity lithium ion battery and the manufacture method of the same | |
| CN202695638U (en) | Button type lithium ion battery | |
| CN104813530B (en) | The battery cell of electrode assembly with staggered structure | |
| CN101355180A (en) | Cell structure of lithium ion power battery | |
| CN107482156B (en) | Large single lithium ion battery | |
| CN103035954A (en) | Winding lithium ion battery and fabrication method thereof | |
| CN207097970U (en) | A kind of lithium ion battery containing Soft Roll three-electrode structure in situ | |
| CN109346627A (en) | Fastening lithium ionic cell | |
| CN110061178A (en) | Battery, battery pack and automobile | |
| CN105591162B (en) | Combined Li ion cells and preparation method thereof | |
| CN204614884U (en) | A kind of power-type power, energy storage lithium ion battery and Li-ion batteries piles | |
| CN108011134B (en) | High-efficiency nickel-hydrogen battery | |
| CN109378436A (en) | Tab and the lithium ion battery for using the tab | |
| WO2018036326A1 (en) | Battery cell structure and preparation method therefor, and button-type secondary lithium-ion battery | |
| CN204407416U (en) | A kind of button lithium ion battery | |
| CN209119253U (en) | A kind of Soft Roll large capacity solid polymer lithium ion battery | |
| CN209232828U (en) | Lithium ion battery with aluminum shell and its shell and its top cover | |
| CN104103853B (en) | Rechargeable battery | |
| CN207602716U (en) | A kind of coiled battery and battery pack | |
| CN202503077U (en) | Battery core of orthohexagonal lithium ion battery | |
| CN214411292U (en) | Winding and lamination composite lithium battery | |
| CN103493248A (en) | Secondary battery | |
| CN209282286U (en) | Lithium ion battery | |
| CN209104262U (en) | Tab and the lithium ion battery for using the tab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210308 Address after: 516000 1st floor, Yifu company workshop, Weisheng Industrial Zone, Qingchun village, Chenjiang, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: Huizhou lishengda New Energy Technology Co.,Ltd. Address before: 518000 3rd floor, NO.48 Meihua Road, baishixia East District, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Yang Ming |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20210607 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |