CN207282617U - A kind of square lithium ion battery with aluminum shell of high-energy-density - Google Patents
A kind of square lithium ion battery with aluminum shell of high-energy-density Download PDFInfo
- Publication number
- CN207282617U CN207282617U CN201720907924.9U CN201720907924U CN207282617U CN 207282617 U CN207282617 U CN 207282617U CN 201720907924 U CN201720907924 U CN 201720907924U CN 207282617 U CN207282617 U CN 207282617U
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- Prior art keywords
- core
- density
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- lithium ion
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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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- 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
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Abstract
Technical field of lithium batteries, more particularly to a kind of square lithium ion battery with aluminum shell of high-energy-density are the utility model is related to, including：Two coiling directions are in mirror image and the core of parallel connection, each core is formed by negative plate, positive plate and single side ceramic diaphragm winding, the positive plate at the one core ending is than the anode length of a film, and the negative plate at another core ending is than the cathode length of a film.The utility model adds the contact surface of two core positive/negative plates in parallel, so as to give full play to the capacity of positive plate on contact surface, achievees the purpose that the whole single battery core energy density of increase, and more preferable basis is provided for composition pack modules.
Description
Technical field
It the utility model is related to technical field of lithium batteries, more particularly to a kind of high-energy-density square aluminum case lithium ion electricity
Pond.
Background technology
With being continuously increased for the market demand, the energy density of lithium ion battery is also higher and higher.Cylindrical battery is as one
Kind lithium ion battery, due to structural factor, the lifting of its energy density is restricted, by the pack moulds of monomer battery composition
Group substantial amounts, therefore, it is impossible to the performances such as the heat dissipation of single battery core, voltage are accurately monitored, therefore whole module exists necessarily
Security risk.And rectangular lithium ion battery as a kind of battery of high-energy-density, it is necessary to form the single battery core of pack modules
Quantity is far less than cylindrical battery, therefore the building form of module is simpler, and can effectively monitor dissipating for single battery core
The data such as heat, voltage, improve the security performance of whole module.
In traditional structure, the end of two naked battery cores in parallel is finished up by negative plate, and the negative plate on core contact surface is simultaneously
Do not make full use of, and then result in the waste of resource, the energy density of overall battery core is not in contrast very high.
For this reason, it is necessary to a kind of square lithium ion battery with aluminum shell of high-energy-density is provided to overcome drawbacks described above.
The content of the invention
The utility model provides a kind of square lithium ion battery with aluminum shell of high-energy-density, adds two core cathodes in parallel
The contact surface of piece, so as to give full play to the capacity of positive plate on contact surface, reaches the mesh for increasing whole single battery core energy density
, provide more preferable basis for composition pack modules.
In order to solve the above-mentioned technical problem, technical solution adopted in the utility model is：
A kind of square lithium ion battery with aluminum shell of high-energy-density, including：Two coiling directions are in the core of mirror image and parallel connection,
Each core by negative plate, positive plate and single side ceramic diaphragm winding form, at a core ending it is described just
Pole piece is than the anode length of a film, and the negative plate at another core ending is than the cathode length of a film.
Preferably, there is the positive pole ear that foil is drawn on the positive/negative plate, there is foil to draw on the negative plate more
A negative lug, two core weld together in the overlapping side parallel connection of the positive pole ear and the negative lug.
Preferably, there are one side at ending of the positive plate than the core of the anode length of a film to be not coated by cathode material
The empty substrate area of material, the anode continuously coat the diaphragm of active material for bilateral.
Preferably, the negative plate in the presence of unilateral at the ending of the core of the cathode length of a film than being not coated by anode
The empty substrate area of material, and the just extremely diaphragm of dual coating active material.
Preferably, the number of the positive pole ear is no less than 3, and the number of the negative lug is no less than 3.
Compared with prior art, the square lithium ion battery with aluminum shell of a kind of high-energy-density of the utility model, including：Two
Coiling direction in mirror image and parallel connection core, each core by negative plate, positive plate and single side ceramic diaphragm wind and
Into, the positive plate at a core ending than the anode length of a film, the negative plate at another core ending
Than the cathode length of a film, the core of the pairing to be finished up by designing the positive plate and the negative plate, adds two institutes
The utilization rate of capacity on core contact surface is stated, so as to improve the energy density of overall battery core.The utility model adds two simultaneously
Join the contact surface of core positive/negative plate, so as to give full play to the capacity of the positive plate on contact surface, reach the whole monomer of increase
The purpose of battery core energy density, more preferable basis is provided for composition pack modules.
Brief description of the drawings
Fig. 1 is that a kind of two core of the square lithium ion battery with aluminum shell of high-energy-density of the utility model are unwelded
Structure diagram.
Fig. 2 is part-structure schematic diagram when two core of Fig. 1 are not wound.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the utility model is specifically illustrated, attached drawing is only for reference and explanation uses, not structure
The limitation of paired the utility model patent protection domain.
Please refer to Fig.1 to Fig. 2, a kind of square lithium ion battery with aluminum shell of high-energy-density of the utility model, including：Core
A and core B, the core A and the core B are connected in parallel along coiling direction in mirror image and the core A and the core B.
Specifically, the core A is formed by negative plate A1, positive plate A2 and single side ceramic diaphragm A3 windings, and another core B is by bearing
Pole piece B1, positive plate B2 and single side ceramic diaphragm B3 windings form, and the positive plate A2 of the core A is than the negative plate
The negative plate B1 of A1 long, the core B are than the positive plate B2 long, institutes of the positive plate A2 than the negative plate A1 long
The empty substrate area A4 for being not coated by positive electrode at the ending of core A in the presence of one side is stated, the anode of the core A continuously applies for bilateral
The diaphragm of active material is covered, there is one side not at the ending of the core B of the negative plate B1 than the positive plate B2 long
Coat the empty substrate area B4 of negative material, and the just extremely diaphragm of dual coating active material of the core B.Further,
There are the multiple negative lugs for thering is foil to draw on the positive pole ear A21, the negative plate A1 of foil extraction on the positive plate A2
There are the multiple anode for thering is foil to draw on the positive pole ear B21, the negative plate B1 of foil extraction on A11, the positive plate B2
Lug B11, the core A and the core B are in the weldering in parallel of the overlapping side of the positive pole ear A21 and the negative lug B11
It is connected together.The number of the positive pole ear A21 is no less than 3, and the number of the negative lug B11 is no less than 3.
The square lithium ion battery with aluminum shell of a kind of high-energy-density of the utility model, in the positive plate B2, the anode
The foil of piece A1 draws multiple lug A11, the lug B21, by the core A and the core B in the lug A11
Side parallel connection overlapping with the lug B21 welds together, meanwhile, the positive plate A2 at the core A endings is arranged to compare
The negative plate A1 long, and there is the unilateral empty substrate area A4 for being not coated by positive electrode at ending, and anode is bilateral
The diaphragm of continuous coating active material, the negative plate B1 at another described core B ending than the positive plate B2 long, and
There is the unilateral empty substrate area B4 for being not coated by negative material at ending, and the just extremely diaphragm of dual coating active material, increase
Add the contact surface of two core positive/negative plates in parallel, so as to give full play to the capacity of the positive plate on contact surface, reach increase
The purpose of whole single battery core energy density, more preferable basis is provided for composition pack modules.
Above disclosed is only the preferred embodiment of the utility model, it is impossible to the right of the utility model is limited with this
Protection domain, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the model that the utility model is covered
Enclose.
Claims (5)
1. a kind of square lithium ion battery with aluminum shell of high-energy-density, including：Two coiling directions are in the core of mirror image and parallel connection, its
It is characterized in that, each core is formed by negative plate, positive plate and single side ceramic diaphragm winding, at a core ending
The positive plate than the anode length of a film, the negative plate at another core ending is than the cathode length of a film.
2. the square lithium ion battery with aluminum shell of high-energy-density as claimed in claim 1, it is characterised in that have on the positive plate
The positive pole ear that foil is drawn, has multiple negative lugs that foil is drawn on the negative plate, two core are in the cathode
The overlapping side parallel connection of lug and the negative lug welds together.
3. the square lithium ion battery with aluminum shell of high-energy-density as claimed in claim 1, it is characterised in that the positive plate compares institute
The empty substrate area for being not coated by positive electrode at the ending of the core of anode length of a film in the presence of one side is stated, the anode connects for bilateral
The diaphragm of continuous coating active material.
4. the square lithium ion battery with aluminum shell of high-energy-density as claimed in claim 1, it is characterised in that the negative plate compares institute
State and there is the unilateral empty substrate area for being not coated by negative material at the ending of the core of cathode length of a film, and it is described just extremely double
Face coats the diaphragm of active material.
5. the square lithium ion battery with aluminum shell of high-energy-density as claimed in claim 2, it is characterised in that the positive pole ear
Number is no less than 3, and the number of the negative lug is no less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720907924.9U CN207282617U (en) | 2017-07-25 | 2017-07-25 | A kind of square lithium ion battery with aluminum shell of high-energy-density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720907924.9U CN207282617U (en) | 2017-07-25 | 2017-07-25 | A kind of square lithium ion battery with aluminum shell of high-energy-density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282617U true CN207282617U (en) | 2018-04-27 |
Family
ID=61985492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720907924.9U Expired - Fee Related CN207282617U (en) | 2017-07-25 | 2017-07-25 | A kind of square lithium ion battery with aluminum shell of high-energy-density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207282617U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216761A (en) * | 2018-10-31 | 2019-01-15 | 珠海格力电器股份有限公司 | Lithium battery core and lithium battery |
| CN110021736A (en) * | 2019-04-26 | 2019-07-16 | 湖北金泉新材料有限责任公司 | A kind of corrugated method of collector in reduction electrode plates preparation process |
| CN111370639A (en) * | 2020-05-27 | 2020-07-03 | 北京小米移动软件有限公司 | Battery core, manufacturing method thereof and battery |
| CN113451660A (en) * | 2021-06-11 | 2021-09-28 | 江苏海基新能源股份有限公司 | Assembling method of inner bipolar column laminated winding battery |
-
2017
- 2017-07-25 CN CN201720907924.9U patent/CN207282617U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216761A (en) * | 2018-10-31 | 2019-01-15 | 珠海格力电器股份有限公司 | Lithium battery core and lithium battery |
| CN110021736A (en) * | 2019-04-26 | 2019-07-16 | 湖北金泉新材料有限责任公司 | A kind of corrugated method of collector in reduction electrode plates preparation process |
| CN110021736B (en) * | 2019-04-26 | 2021-09-24 | 湖北亿纬动力有限公司 | Method for reducing wrinkling of current collector in electrode plate preparation process |
| CN111370639A (en) * | 2020-05-27 | 2020-07-03 | 北京小米移动软件有限公司 | Battery core, manufacturing method thereof and battery |
| CN113451660A (en) * | 2021-06-11 | 2021-09-28 | 江苏海基新能源股份有限公司 | Assembling method of inner bipolar column laminated winding battery |
| CN113451660B (en) * | 2021-06-11 | 2023-10-13 | 江苏海基新能源股份有限公司 | Method for assembling inner bipolar post lamination type winding battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20190725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |