CN106601973B - A kind of high efficiency high-rate lithium battery structure - Google Patents
A kind of high efficiency high-rate lithium battery structure Download PDFInfo
- Publication number
- CN106601973B CN106601973B CN201611059000.4A CN201611059000A CN106601973B CN 106601973 B CN106601973 B CN 106601973B CN 201611059000 A CN201611059000 A CN 201611059000A CN 106601973 B CN106601973 B CN 106601973B
- Authority
- CN
- China
- Prior art keywords
- capping
- lithium battery
- electrode ear
- ear
- insulating layer
- 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.)
- Active
Links
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
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
-
- 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)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of high efficiency high-rate lithium battery structures.Solve general lithium battery pole ear by welding pole conduct electric energy, there are welding procedure hardly possible, solder joint influence lithium battery electrical efficiency, limit lithium battery discharge-rate the problem of.Battery structure includes capping, capping, which is arranged with, takes electrode ear, it takes the front end portion of electrode ear to pass through capping to be located in closure surface, insulating layer, which is wrapped in, to be taken in electrode ear, is taken the front end portion of electrode ear to expose and is formed external terminal on the insulating layer upper surface being located in capping.It is an advantage of the invention that taking electrode ear using integrated design, solves the problems, such as the technique bottleneck that existing lithium battery welds at two at this, increase the discharge-rate of lithium battery, the resistance as caused by pad and the case where fever when reducing heavy-current discharge.Tab insulating layer directly wraps up and takes electrode ear, generates good leakproofness and insulating properties with battery cap.Overall structure is simple, reduces lithium battery manufacture craft, Production Time and material cost.
Description
Technical field
The present invention relates to a kind of battery technology fields to reduce manufacture craft, system more particularly, to a kind of tab without welding
Make the high efficiency high-rate lithium battery structure of time, cost of manufacture.
Background technique
With the continuous improvement that the energy conservation and environmental protection of society requires, electric car becomes the development side of modern automobile industry technology
To.The current power source of electric vehicle mainly in a manner of reserve power based on, current science and technology be background reserve power
Technology increasingly updates, and wherein lithium battery technology becomes the Main way of current electric vehicle reserve power with every excellent performance.
The existing lithium battery way to take power of existing market is substantially by battery core by taking electrode ear to be directed to electric energy a little
Pole, then electric energy is directed to the positive and negative anodes that lithium battery is formed on external terminal by conductive pole column.Conductive electrode at tab welding point
Column extension is mutually welded with electrode ear is taken, and welding is generally realized by the way of Laser Welding or electric resistance welding herein, both sides
The general pad area of formula is smaller, its conductive area is caused there was only small part pad, is lithium battery conductive bottle
One of neck.Pole pad is then generated additionally, due to packaging technology, since various this solder joint that limit again reduce electrical efficiency,
Form another bottleneck.This electrical efficiency when bottleneck will affect lithium battery heavy-current discharge at two, increases lithium battery
Fever factor also limits the discharge-rate of lithium battery.
Such as application No. is 200810112633.6, a kind of entitled Chinese invention Shen of powerful lithium-ion-power cell
Please, including multiple single battery cores in parallel, each single battery core includes the positive pole ear of positive plate, negative electrode tab, diaphragm and 2-8 item
And negative lug, it is to be punched into come in the current collector aluminum foil of positive plate that positive pole ear and positive plate, which are integrated, cathode pole
Ear and negative electrode tab are integrated, are to be punched into come on the copper foil of affluxion body of negative electrode tab, the positive pole ear of all single battery cores
It is welded in Positive Poles, all negative lugs are welded in negative pole.The patent tab will be welded on pole, just be deposited
In above-mentioned problem, there are bottleneck problems for welding, influence electrical efficiency when lithium battery heavy-current discharge, increase lithium battery fever
Factor also limits the discharge-rate of lithium battery.
Summary of the invention
The present invention mainly solves general lithium battery pole ear in the prior art and there is welding by welding pole conduction electric energy
The problem of technique is difficult, and solder joint influences lithium battery electrical efficiency, limits lithium battery discharge-rate provides a kind of tab without weldering
It connects, reduces the high efficiency high-rate lithium battery structure of manufacture craft, Production Time, cost of manufacture.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: a kind of high efficiency high magnification
Lithium battery structure, including capping, capping, which is arranged with, takes electrode ear, takes electrode ear to be connected with insulating layer, it is characterised in that: described
It takes the front end portion of electrode ear to pass through capping to be located in closure surface, the insulating layer, which is wrapped in, to be taken in electrode ear, and electricity will be taken
Tab is isolated with capping, is taken the front end portion of electrode ear to expose and is formed outer end on the insulating layer upper surface being located in capping
Son.It will take electrode ear design integral in the present invention, electrode ear and capping outer end are taken to capping lower part without pole
Son is weldingly connected, and solves the problems, such as the technique bottleneck that existing lithium battery welds at two at this, increases putting for lithium battery
Electric multiplying power, when reducing heavy-current discharge the case where the resistance as caused by pad and fever.The configuration of the present invention is simple is direct, subtracts
Lithium battery manufacture craft, battery Production Time and material cost are lacked, while having decreased lithium battery interior occupied space, has improved
The volume capacity ratio of lithium battery.Insulating layer directly wraps up and takes electrode ear, this forms good leakproofness and absolutely with battery cap
Edge.Tab lower fusing point is easy to release stress when encountering high temperature and pressure, reduces the risk of battery explosion.
As a preferred embodiment, described to take electrode ear for sheet, it takes and leads between electrode ear front end portion and rear end part
It crosses coupling part to be connected, front end portion, coupling part and rear end part will take electrode ear to form step structure, after taking electrode ear
End part is downwardly extending extension, and extension is connected with battery core.
As a preferred embodiment, insulating layer is wrapped on rear end part and coupling part, and insulating layer is in closure surface
And rectangular groove body is formed, take electrode ear front end portion to be embedded in groove body.
As a preferred embodiment, the groove body is located in closure surface, and the rear end of groove body penetrates in capping and insulating layer
It is connected, side is provided with the perforation being pierced by for front end portion in groove body rear end.
As a preferred embodiment, it sets and the front bottom end of the groove body of electrode ear front end portion is taken to be provided with and cover mutually admittedly
Fixed clamp is provided with card hole in capping corresponding position, and clamp insertion card hole head is stuck on the bottom surface of capping.So that insulation division
It is more stable to be fixed in closure surface.It is easy for installation.
As a preferred embodiment, it wraps up and is provided with protrusion on the inside for taking the insulating layer of electrode ear rear end part.Protrusion
For limiting the upper and lower displacement of battery core.
Therefore, the invention has the advantages that 1. take electrode ear using integrated design, without pole to capping lower part
It takes electrode ear and capping external terminal to be weldingly connected, solves existing lithium battery asking in this technique bottleneck welded at two
Topic increases the discharge-rate of lithium battery, when reducing heavy-current discharge the case where the resistance as caused by pad and fever.2.
Tab insulating layer directly wraps up and takes electrode ear, generates good leakproofness and insulating properties with battery cap.3. overall structure is simple
Directly, it is possible to reduce time and materials cost when lithium battery manufacture craft, battery production.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the present invention；
Attached drawing 2 is a kind of structural schematic diagram that the present invention overlooks；
Attached drawing 3 is the enlarged structure schematic diagram in attached drawing 1 at A.
1- capping 2- takes the electrode ear front end portion the 3- insulating layer 4- coupling part 5- 6- rear end part 7- extension
8- clamp 9- card hole 10- protrusion.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
A kind of high efficiency high-rate lithium battery structure of the present embodiment, as shown in Figure 1, lithium battery includes capping 1, capping is divided into
It is equipped with and takes electrode ear 2, this takes the front end portion 4 of electrode ear to pass through capping positioned in closure surface.It includes taking that this, which takes electrode ear,
Electrolytic copper tab and take electrit tab, two two sides for taking electrode ear to be separately positioned on safety valve, they with cover, insulating layer is connect
Structure be it is the same, will be taken in the present embodiment and electrolytic copper tab and electrit tab be taken to be referred to as taking electrode ear.
Taking electrode ear is sheet, and taking electrode ear includes front end portion 4 and rear end part 6, it is divided in front end portion and rear end
Between by coupling part 5 be connected, front end portion, coupling part and rear end part will take electrode ear formed step structure, take electricity
Tab rear end part is downwardly extending extension 7, and extension is connected with battery core.
Insulating layer 3, which is wrapped in, to be taken in electrode ear, and electrode ear will be taken to be isolated with capping.As shown in Figure 3, insulating layer wraps up
On rear end part and coupling part, and the insulating layer of front end portion only wraps up the periphery of front end portion, and insulating layer is in capping table
Face forms rectangular groove body, and electrode ear front end portion is taken to be embedded in groove body, and front end portion is exposed to be formed on surface on the insulating layer
External terminal.Groove body is located in closure surface, and the rear end of groove body penetrates in capping and is connected with insulating layer, leans in groove body rear end
Side is provided with the perforation being pierced by for front end portion.
For the connection of reinforced insulation layer and capping, on setting the front bottom end for taking the groove body of 2 front end portion 4 of electrode ear
It is provided with the clamp 8 mutually fixed with capping, capping corresponding position is provided with card hole 9, clamp insertion card hole head is stuck in capping
Bottom surface on.
Protrusion 10 is provided on the inside that package takes the insulating layer 3 of 2 rear end part 6 of electrode ear.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although capping is used more herein, takes the terms such as electrode ear, insulation, front end portion, coupling part, not
It rules out the possibility of using other terms.The use of these items is only for be more convenient to describe and explain sheet of the invention
Matter；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (5)
1. a kind of high efficiency high-rate lithium battery structure, including capping, capping, which is arranged with, takes electrode ear, electrode ear and insulation are taken
Layer be connected, it is characterised in that: the front end portion for taking electrode ear (2) pass through capping (1) be located in closure surface, it is described absolutely
Edge layer (3), which is wrapped in, to be taken in electrode ear, and electrode ear will be taken to be isolated with capping, takes the front end portion (4) of electrode ear to expose in place
In forming external terminal on the insulating layer upper surface in capping；It is described to take electrode ear (2) for sheet, take electrode ear front end portion
(4) it is connected between rear end part (6) by coupling part (5), front end portion, coupling part and rear end part will take electrode ear
Step structure is formed, takes electrode ear rear end part end to be downwardly extending extension (7), extension is connected with battery core.
2. a kind of high efficiency high-rate lithium battery structure according to claim 1, it is characterized in that after insulating layer (3) is wrapped in
In end part and coupling part, and insulating layer is pierced by capping (1) surface and forms rectangular groove body, takes electrode ear front end portion embedding
Enter in groove body.
3. a kind of high efficiency high-rate lithium battery structure according to claim 2 is being sealed it is characterized in that the groove body is located at
(1) surface is covered, the rear end of groove body penetrates in capping and is connected with insulating layer, is provided with by side for front end in groove body rear end
The perforation for dividing (4) to be pierced by.
4. a kind of high efficiency high-rate lithium battery structure according to claim 1 or 2 or 3, takes electrode it is characterized in that setting
The front bottom end of the groove body of ear (2) front end portion (4) is provided with the clamp (8) mutually fixed with capping, installs in capping corresponding positions
It is equipped with card hole (9), clamp insertion card hole head is stuck on the bottom surface of capping.
5. a kind of high efficiency high-rate lithium battery structure according to claim 1 or 2 or 3, it is characterized in that package takes electrode
Raised (10) are provided on the inside of the insulating layer (3) of ear (2) rear end part (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059000.4A CN106601973B (en) | 2016-11-27 | 2016-11-27 | A kind of high efficiency high-rate lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059000.4A CN106601973B (en) | 2016-11-27 | 2016-11-27 | A kind of high efficiency high-rate lithium battery structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106601973A CN106601973A (en) | 2017-04-26 |
| CN106601973B true CN106601973B (en) | 2019-06-21 |
Family
ID=58593471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611059000.4A Active CN106601973B (en) | 2016-11-27 | 2016-11-27 | A kind of high efficiency high-rate lithium battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106601973B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061156B (en) * | 2019-05-09 | 2024-05-24 | 江苏恒驰动力科技有限公司 | Square apron of pole piece integral type |
| KR102424631B1 (en) * | 2019-12-24 | 2022-07-25 | 주식회사 유앤에스에너지 | Current collector for positive electrodes |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5430849B2 (en) * | 2007-12-27 | 2014-03-05 | 株式会社東芝 | Non-aqueous electrolyte battery |
| US9099726B2 (en) * | 2010-01-19 | 2015-08-04 | Samsung Sdi Co., Ltd. | Secondary battery and method of fabricating the same |
| CN102456910B (en) * | 2010-10-16 | 2016-03-09 | 比亚迪股份有限公司 | A kind of lithium-ion-power cell |
| CN103066236A (en) * | 2011-10-19 | 2013-04-24 | 黄泓雯 | Lithium battery and electrode link module thereof |
| CN203260661U (en) * | 2013-05-09 | 2013-10-30 | 丰田自动车株式会社 | Sealed battery |
-
2016
- 2016-11-27 CN CN201611059000.4A patent/CN106601973B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106601973A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102856514B (en) | A cover plate assembly and lithium ion battery containing the cover plate assembly | |
| CN204067500U (en) | A kind of column lithium ion battery | |
| CN209087917U (en) | Secondary cell | |
| CN207925531U (en) | A kind of power battery head cover insulation system | |
| CN207651538U (en) | A kind of battery | |
| CN108598355A (en) | A kind of secondary cell connection sheet and secondary cell | |
| CN207818737U (en) | Battery, battery pack and automobile | |
| CN106601973B (en) | A kind of high efficiency high-rate lithium battery structure | |
| CN110061178A (en) | Battery, battery pack and automobile | |
| CN208478452U (en) | A kind of power battery | |
| CN108832049A (en) | A kind of new-energy automobile lithium battery lithium cell component | |
| CN208608240U (en) | A kind of electric lids of high-energy density lithium battery | |
| CN209183580U (en) | A kind of cylindrical battery | |
| CN103531852B (en) | A kind of bipolar lead-acid accumulator | |
| CN108123179A (en) | Electric automobile power battery | |
| CN205376667U (en) | Naked electric core | |
| CN104078702A (en) | Cylindrical lithium ion battery | |
| CN208889752U (en) | Battery and its cover plate assembly, switching piece | |
| CN109037508A (en) | A kind of electric lids of high-energy density lithium battery | |
| CN214706060U (en) | Lithium battery structure and lithium battery | |
| CN110299249A (en) | A kind of electrochemical energy storing device | |
| CN207834478U (en) | A kind of button polymer Li-ion battery | |
| CN103904355B (en) | A kind of lithium ion battery | |
| CN205828526U (en) | Adapter assembly | |
| CN105761932B (en) | A kind of rectangular aluminium electrolutic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220221 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee before: Shanghai Huapu Automobile Co., Ltd |
|
| TR01 | Transfer of patent right |