CN205159442U - Novel cylindrical lithium -ion battery - Google Patents
Novel cylindrical lithium -ion battery Download PDFInfo
- Publication number
- CN205159442U CN205159442U CN201520882199.5U CN201520882199U CN205159442U CN 205159442 U CN205159442 U CN 205159442U CN 201520882199 U CN201520882199 U CN 201520882199U CN 205159442 U CN205159442 U CN 205159442U
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- CN
- China
- Prior art keywords
- pole piece
- ion battery
- utmost point
- point ear
- thickness
- 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
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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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Abstract
The utility model discloses a novel cylindrical lithium -ion battery, it includes the casing, accommodates electric core and the electrolyte in the casing and installs the battery block on the casing, the electricity core by just, negative pole piece and diaphragm winding form, just, all be equipped with the utmost point ear of perpendicular to pole piece on the negative pole piece, the one end of utmost point ear does not exceed the pole piece edge, and length that the other end exceeds the pole piece is L=L1 -nH1 - nH2 - 2nH3, and wherein, L1 is outer lane utmost point ear length degree when coiling, and HI be the thickness of positive plate, and H2 is the thickness of negative pole piece, and H3 is unfamiliar thickness, and n is the winding number of piles. Compared with the prior art, the benefit that this practical novel cylindrical lithium -ion battery has lies in: under the condition that does not influence the back welding, controlled the length of utmost point ear, not only help reducing lithium cell manufacturing cost, the utmost point ear spot welding phenomenon of being rebuffed of buckling has been avoided to reasonable utmost point ear length degree moreover.
Description
[technical field]
The utility model belongs to vehicle technology field, particularly relates to a kind of Novel circular column-shaped lithium ion battery.
[background technology]
As non-renewable resources, oil exhaustion in a foreseeable future will occur, and when the time comes, automobile industry will inevitably use other alternative energy sources; In addition, the pollution emission of motor vehicle is also the subject matter of current city environmental pollution and climatic deterioration, also needs the clean energy resource finding a kind of replaceable use.For these reasons, the new forms of energy lithium-ion-power cell automobile replaced as orthodox car is more and more subject to the extensive attention of automobile industry and widelys popularize, and is also one of Main way of current new automobile industry development.
In lithium battery industry, the problems such as still safety, cost, life-span, energy density of greatest concern, but along with the development of domestic material preparation process is with ripe, the application of the material such as professional electrolyte in addition, the improvement etc. of technological design, lithium battery is significantly promoted in the performances such as safety, life-span, energy density, but the manufacturing cost day by day risen cannot be reduced, therefore, under guarantee secured premise, suitably control cost, become the main competitiveness of lithium electrical travelling industry.
Given this, be necessary to provide a kind of new Novel circular column-shaped lithium ion battery to overcome the deficiencies in the prior art in fact.
[utility model content]
The purpose of this utility model provides a kind of Novel circular column-shaped lithium ion battery reducing lithium battery production cost.
To achieve these goals, the utility model provides a kind of Novel circular column-shaped lithium ion battery, it comprises housing, the battery cap being contained in battery core in housing and electrolyte and being installed on housing, described battery core is by just, negative plate and barrier film are entwined, just described, negative plate is equipped with the lug perpendicular to pole piece, one end of described lug does not exceed pole piece edge, the length that the other end exceeds pole piece is L=L1-nH1-nH2-2nH3, wherein, L1 is outmost turns lug length during winding, HI is the thickness of positive plate, H2 is the thickness of negative plate, H3 is the thickness of barrier film, n is the number of plies be wound around.
One as the utility model Novel circular column-shaped lithium ion battery is improved, and described L1 is outmost turns lug length during winding, and the lug of this length just arrives battery core central position when bending.
One as the utility model Novel circular column-shaped lithium ion battery is improved, described n >=3.
One as the utility model Novel circular column-shaped lithium ion battery is improved, the negative plate clad anode sheet in described battery core, meanwhile, and barrier film clad anode sheet and negative plate.
Compared with prior art, the benefit that the utility model cylindrical lithium ion battery has is: when not affecting back welding, control the length of lug, not only contribute to reducing lithium battery production cost, and reasonably lug length avoids lug bending spot welding and to be rebuffed phenomenon.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the negative plate that the utility model Novel circular column-shaped lithium ion battery relates to;
Schematic diagram before Fig. 2 positive/negative plate involved by the utility model Novel circular column-shaped lithium ion battery is wound around;
Fig. 3 is the battery core after winding of the positive/negative plate shown in Fig. 2.
[embodiment]
In order to make, the purpose of this utility model, technical scheme and Advantageous Effects are more clear to be understood, below in conjunction with the drawings and specific embodiments, is further elaborated to the utility model.Should be understood that, the embodiment described in this specification is only used to explain the utility model, is not to limit the utility model.
In order to reduce lithium battery production cost, ensure the qualification rate of product, the utility model provides a kind of Novel circular column-shaped lithium ion battery, it comprises housing, the battery cap being contained in battery core in housing and electrolyte and being installed on housing, described battery core is by just, negative plate and barrier film are entwined, just described, negative plate is equipped with the lug perpendicular to pole piece, one end of described lug does not exceed pole piece edge, the length that the other end exceeds pole piece is L=L1-nH1-nH2-2nH3, wherein, L1 is outmost turns lug length during winding, HI is the thickness of positive plate, H2 is the thickness of negative plate, H3 is the thickness of barrier film, n is the number of plies be wound around.Described L1 is outmost turns lug length during winding, and the lug of this length just arrives battery core central position when bending.
The concrete steps making the utility model Novel circular column-shaped lithium ion battery comprise:
1) negative plate material (4,5,6,7) is coated in the two sides of foil by the mode of coating, then inner ring negative electrode lug 1, inner ring negative electrode lug 2, outer ring negative electrode lug 3 are surpassed the gap digit being welded in negative plate, and ensure not occur rosin joint phenomenon.
2) be wound around by normal positive plate 8 and according to negative plate 9, barrier film (10,11) that the utility model makes by the coiling direction of Fig. 2, and ensure that negative plate 9 encases positive plate 8, allow barrier film (10,11) encase positive plate 8 and negative plate 9 simultaneously, finally will obtain multi pole ears battery core, shown in Figure 3.
3) battery core makes complete, carries out battery leak detection, enters shell, puts the rear operations such as back welding.
The utility model Novel circular column-shaped lithium ion battery, be not restricted to described in specification and execution mode, therefore additional advantage and amendment can easily be realized for the personnel of familiar field, therefore when not deviating from the spirit and scope of the universal that claim and equivalency range limit, the utility model is not limited to specific details, representational equipment and illustrates here and the examples shown described.
Claims (4)
1. a Novel circular column-shaped lithium ion battery, it comprises housing, the battery cap being contained in battery core in housing and electrolyte and being installed on housing, described battery core is by just, negative plate and barrier film are entwined, it is characterized in that: just described, negative plate is equipped with the lug perpendicular to pole piece, one end of described lug does not exceed pole piece edge, the length that the other end exceeds pole piece is L=L1-nH1-nH2-2nH3, wherein, L1 is outmost turns lug length during winding, HI is the thickness of positive plate, H2 is the thickness of negative plate, H3 is the thickness of barrier film, n is the number of plies be wound around.
2. Novel circular column-shaped lithium ion battery as claimed in claim 1, is characterized in that: described L1 is outmost turns lug length during winding, and the lug of this length just arrives battery core central position when bending.
3. Novel circular column-shaped lithium ion battery as claimed in claim 1, is characterized in that: described n >=3.
4. Novel circular column-shaped lithium ion battery as claimed in claim 1, is characterized in that: the negative plate clad anode sheet in described battery core, meanwhile, and barrier film clad anode sheet and negative plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882199.5U CN205159442U (en) | 2015-11-07 | 2015-11-07 | Novel cylindrical lithium -ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882199.5U CN205159442U (en) | 2015-11-07 | 2015-11-07 | Novel cylindrical lithium -ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159442U true CN205159442U (en) | 2016-04-13 |
Family
ID=55695101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520882199.5U Expired - Fee Related CN205159442U (en) | 2015-11-07 | 2015-11-07 | Novel cylindrical lithium -ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042492A1 (en) * | 2020-08-31 | 2022-03-03 | 比亚迪股份有限公司 | Battery and battery pack |
-
2015
- 2015-11-07 CN CN201520882199.5U patent/CN205159442U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042492A1 (en) * | 2020-08-31 | 2022-03-03 | 比亚迪股份有限公司 | Battery and battery pack |
| CN114204222A (en) * | 2020-08-31 | 2022-03-18 | 比亚迪股份有限公司 | Battery and battery pack |
| CN114204222B (en) * | 2020-08-31 | 2023-11-14 | 比亚迪股份有限公司 | Battery and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jingzhou waltmal Battery Co., Ltd. Assignor: Shenzhen Optimum Battery Co., Ltd. Contract record no.: 2016440020094 Denomination of utility model: A kind of new cylindrical lithium-ion battery cap Granted publication date: 20160413 License type: Common License Record date: 20161024 Assignee: Shaanxi Voight new energy Co., Ltd. Assignor: Shenzhen Optimum Battery Co., Ltd. Contract record no.: 2016440020093 Denomination of utility model: A kind of new cylindrical lithium-ion battery cap Granted publication date: 20160413 License type: Common License Record date: 20161021 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170317 Address after: 714000 Shaanxi high tech Zone in Weinan City, Qin Yu Lu No. 2 Patentee after: Shaanxi Voight new energy Co., Ltd. Address before: 518000 Guangdong Province, Shenzhen City Pingshan Pingshan community Zhu Keng Industrial Zone 9 1-3 Patentee before: Shenzhen Optimum Battery Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20160413 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20160413 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20191107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |