CN2842757Y - Snap-type lithium-ion cell - Google Patents
Snap-type lithium-ion cell Download PDFInfo
- Publication number
- CN2842757Y CN2842757Y CNU2005200611139U CN200520061113U CN2842757Y CN 2842757 Y CN2842757 Y CN 2842757Y CN U2005200611139 U CNU2005200611139 U CN U2005200611139U CN 200520061113 U CN200520061113 U CN 200520061113U CN 2842757 Y CN2842757 Y CN 2842757Y
- Authority
- CN
- China
- Prior art keywords
- pole piece
- positive
- negative
- negative plate
- 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
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- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to a buckle-shaped lithium ion battery which belongs to the technical field of batteries. The utility model particularly relates to a buckle-shaped lithium ion battery. The buckle-shaped lithium ion battery of the utility model comprises a positive pole piece, a negative pole piece, a diaphragm, a steel shell, a cover cap and electrolyte, wherein the positive pole piece is packaged by the diaphragm, the negative pole piece is packaged by the diaphragm, the packaged positive pole piece and the packaged negative pole piece are stacked with one layer of interval, the pole pieces are isolated and insulated, a pole core is formed in a mode of stacking and the pole core is arranged on the bottom part of the steel shell of a seal ring. The utility model has the advantages of high utilization rate of the inner space of the battery, high battery capacity, excellent discharge performance, especially excellent discharge performance of high current, good circulation property and simple manufacture technology.
Description
Technical field
The utility model buckle type lithium-ion battery belongs to field of batteries, particularly relates to a kind of buckle type lithium-ion battery.
Background technology
Button cell is made up of positive plate, negative plate, barrier film, electrolyte and battery steel shell, because the button cell inner space is limited, require it to have good electrical property again, so the pole piece structure of button cell just seems particularly important.It is round-shaped that button cell mostly is, its pole piece structure is generally takeup type structure, rotary vane type structure, the pole piece function admirable of coiled battery structure battery, technical maturity, but the box hat space availability ratio of inner is too low, cause battery capacity limited, the battery capacity that the rotary vane type structure is made is big, but discharge power is low, the battery capacity of laminated structure is than coiled battery capacity height, but because it goes to scratch barrier film again and is easy to damage pole piece or barrier film after lamination, cause battery short circuit, cause the rate of finished products in the battery production process to reduce.
The utility model content
The purpose of this utility model is to avoid the deficiencies in the prior art part and a kind of button cell box hat volume inside of can utilizing is provided, make battery reach high energy density, good discharge and cycle performance, be suitable for mass production, the buckle type lithium-ion battery that the rate of finished products in the production process is high.
The purpose of this utility model reaches by following measure, the utility model button cell comprises positive plate, negative plate, barrier film, box hat, block and electrolyte are formed, even dressing positive active material above the positive plate collector body aluminium foil, even dressing negative electrode active material above the negative plate collector body Copper Foil, positive plate encapsulates with barrier film, negative plate encapsulates with barrier film, alternating floor gathers into folds between the positive plate of encapsulation and negative plate one deck of encapsulation, pole piece is separated by insulation and is laminated into pole piece, stacked positive/negative plate is all overlapping, pole piece is contained in the bottom of the box hat of sealing ring, the EC of VC has been added in injection, DEC, the function electricity liquid of DMC matrix system, put cap sealed, made full use of the confined space of box hat inside behind this pole piece dress shell, collector contacts the internal resistance that has guaranteed battery with box hat can be very not high.Two kinds of each lamination sheets of pole piece have avoided the inside battery pole piece too high owing to contact the bad internal resistance that causes with box hat also exposed collector one side contacts box hat.Being the pole piece of a single face dressing above the pole piece, is the pole piece of a single face dressing below the pole piece, and the positive and negative of pole piece is the positive/negative plate of a single face dressing all extremely, and do not have the one side of dressing all to contact respectively with the both positive and negative polarity of battery steel shell inwall respectively.Positive/negative plate all is round-shaped, also can be other shape such as square.
The inner space utilance height of the utility model battery, the battery capacity height, the good especially heavy-current discharge performance of discharge performance is good, good cycle, manufacture craft is simple, be easy to dirt product in batches, can restrain problem effectively, and the chemical property of battery is made moderate progress because the cell thickness size that the less and electric core expansion in box hat inner space is caused exceeds standard.
Description of drawings
Accompanying drawing 1 is a takeup type structure battery cross-sectional view.
Accompanying drawing 2 is the utility model battery cross-sectional view.
Accompanying drawing 3 is generalized sections of Battery Pole Core structure of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the takeup type structure button cell of prior art is that positive plate 13, negative plate 17, barrier film 19, box hat 15, block 11 and electrolyte 14 are formed, even dressing positive active material 12 above the positive plate collector body aluminium foil 13, even dressing negative electrode active material 18 above the negative plate collector body Copper Foil 17, positive plate encapsulates with barrier film 19, negative plate encapsulates with barrier film 19, and takeup type structure pole piece is contained in the bottom of the box hat 15 of sealing ring 16, puts cap sealed.
As shown in Figure 2, the utility model button cell comprises positive plate 3, negative plate 7, barrier film 9, box hat 5, block 1 and electrolyte 4 are formed, even dressing positive active material 2 above the positive plate collector body aluminium foil 3, even dressing negative electrode active material 8 above the negative plate collector body Copper Foil 7, positive plate encapsulates with barrier film 9, negative plate encapsulates with barrier film 9, alternating floor gathers into folds between the positive plate of encapsulation and negative plate one deck of encapsulation, pole piece is separated by insulation and is laminated into pole piece, pole piece is contained in the bottom of the box hat 5 of sealing ring 6, it above the pole piece pole piece of a single face dressing, it below the pole piece pole piece of a single face dressing, the positive and negative of pole piece all is the positive/negative plate of a single face dressing extremely, and there is not the one side of dressing all to contact respectively with the both positive and negative polarity of battery steel shell inwall respectively, two kinds of each lamination sheets of pole piece are injected the EC that has added VC also exposed collector one side contacts box hat, DEC, the function electricity liquid 4 of DMC matrix system is put block 1 sealing.
As shown in Figure 3, even dressing positive active material 2 above the utility model positive plate collector body aluminium foil 3, even dressing negative electrode active material 8 above the negative plate collector body Copper Foil 7, positive plate encapsulates with barrier film 9, negative plate encapsulates with barrier film 9, alternating floor gathers into folds between the positive plate of encapsulation and negative plate one deck of encapsulation, pole piece is separated by insulation and is laminated into pole piece, it above the pole piece pole piece of a single face dressing, it below the pole piece pole piece of a single face dressing, the positive and negative of pole piece all is the positive/negative plate of a single face dressing extremely, and two kinds of each lamination sheets of pole piece are also exposed collector one side contacts box hat.Positive/negative plate all is round-shaped.
Claims (4)
1, a kind of buckle type lithium-ion battery, comprise positive plate, negative plate, barrier film, box hat, block and electrolyte composition, even dressing positive active material above the positive plate collector body aluminium foil, even dressing negative electrode active material above the negative plate collector body Copper Foil, positive plate encapsulates with barrier film, negative plate encapsulates with barrier film, it is characterized in that alternating floor gathers into folds between negative plate one deck of the positive plate that encapsulates and encapsulation, pole piece is separated by insulation and is laminated into pole piece, stacked positive/negative plate is overlapping, and pole piece is contained in the bottom of the box hat of sealing ring.
2, buckle type lithium-ion battery according to claim 1 is characterized in that each lamination sheets of pole piece and exposed collector one a side contacts box hat.
3, buckle type lithium-ion battery according to claim 1, it is characterized in that pole piece above be the pole piece of a single face dressing, it below the pole piece pole piece of a single face dressing, the positive and negative of pole piece all is the positive/negative plate of a single face dressing extremely, and the both positive and negative polarity with the battery steel shell inwall contacts respectively respectively.
4, buckle type lithium-ion battery according to claim 1 is characterized in that positive/negative plate all is round-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200611139U CN2842757Y (en) | 2005-07-01 | 2005-07-01 | Snap-type lithium-ion cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200611139U CN2842757Y (en) | 2005-07-01 | 2005-07-01 | Snap-type lithium-ion cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842757Y true CN2842757Y (en) | 2006-11-29 |
Family
ID=37446628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200611139U Expired - Lifetime CN2842757Y (en) | 2005-07-01 | 2005-07-01 | Snap-type lithium-ion cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842757Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018120388A1 (en) * | 2016-12-30 | 2018-07-05 | 重庆市紫建电子有限公司 | Button battery and manufacturing method therefor |
| CN111261805A (en) * | 2020-01-19 | 2020-06-09 | 惠州市恒泰科技股份有限公司 | Button battery and preparation process thereof |
| CN111341984A (en) * | 2020-03-06 | 2020-06-26 | 刘亚明 | High-energy-density button lithium ion battery |
| CN113300030A (en) * | 2021-07-06 | 2021-08-24 | 瑞声科技（南京）有限公司 | Button cell and preparation method thereof |
| CN113422101A (en) * | 2021-07-19 | 2021-09-21 | 新余赣锋电子有限公司 | Steel shell button cell without magnetic field interference |
-
2005
- 2005-07-01 CN CNU2005200611139U patent/CN2842757Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018120388A1 (en) * | 2016-12-30 | 2018-07-05 | 重庆市紫建电子有限公司 | Button battery and manufacturing method therefor |
| US11165088B2 (en) | 2016-12-30 | 2021-11-02 | Chongqing Vdl Electronics Co., Ltd. | Button battery and manufacturing method therefor |
| CN111261805A (en) * | 2020-01-19 | 2020-06-09 | 惠州市恒泰科技股份有限公司 | Button battery and preparation process thereof |
| CN111261805B (en) * | 2020-01-19 | 2024-04-05 | 惠州市恒泰科技股份有限公司 | Button cell and preparation process thereof |
| CN111341984A (en) * | 2020-03-06 | 2020-06-26 | 刘亚明 | High-energy-density button lithium ion battery |
| CN111341984B (en) * | 2020-03-06 | 2021-01-15 | 刘亚明 | High-energy-density button lithium ion battery |
| CN113300030A (en) * | 2021-07-06 | 2021-08-24 | 瑞声科技（南京）有限公司 | Button cell and preparation method thereof |
| CN113422101A (en) * | 2021-07-19 | 2021-09-21 | 新余赣锋电子有限公司 | Steel shell button cell without magnetic field interference |
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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: PENGHUI BATTERY CO., LTD., ZHUHAI CITY Free format text: FORMER OWNER: PENGHUI CELL CO., LTD., GUANGZHOU CITY Effective date: 20081031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081031 Address after: Guangdong province Zhuhai city Doumen District wells Xinqing shore town Xinqing Technology Industrial Park Road five, zip code: 519100 Patentee after: GreatPower Battry (Zuhai) Co., Ltd. Address before: Guangdong Province, Guangzhou City, Panyu District Shawan Town bunker first industrial zone Guangzhou Penghui Battery Co., Ltd., zip code: 511483 Patentee before: Penghui Battery Co., Ltd., Guangzhou |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150701 Granted publication date: 20061129 |
|
| EXPY | Termination of patent right or utility model |