CN102916156B - Multi-winding core quasi-bipolar lug battery and manufacturing method thereof - Google Patents
Multi-winding core quasi-bipolar lug battery and manufacturing method thereof Download PDFInfo
- Publication number
- CN102916156B CN102916156B CN201210426058.3A CN201210426058A CN102916156B CN 102916156 B CN102916156 B CN 102916156B CN 201210426058 A CN201210426058 A CN 201210426058A CN 102916156 B CN102916156 B CN 102916156B
- Authority
- CN
- China
- Prior art keywords
- core
- lug
- welded
- negative
- battery
- 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
-
- 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
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a multi-winding core quasi-bipolar lug battery and a manufacturing method thereof. The multi-winding core quasi-bipolar lug battery comprises a shell and a winding core group installed inside the shell, wherein the winding core group comprises a first winding core and at least one second winding core; the first winding core and the second winding core are connected in parallel; the first winding core is formed by overlapping and winding a negative electrode plate, a diaphragm and a positive electrode plate; a positive electrode lug is welded on the positive electrode plate of the first winding core; a rubber block is arranged at the upper end of the positive electrode lug; a negative electrode lug is welded on the negative electrode plate of the first winding core; a rubber block is arranged at the upper end of the negative electrode lug; the second winding core is formed by overlapping and winding a negative electrode plate, a diaphragm and a positive electrode plate; aluminum connecting strips are welded on the positive electrode plate of the second winding core; the thickness of the aluminum connecting strip is 0.2mm; nickel connecting strips are welded on the negative electrode plate of the second winding core; the thickness of the nickel connecting strip is 0.2mm; the upper ends of all the aluminum connecting strips are welded on the positive electrode lug; the upper ends of the nickel connecting strips are welded on the negative electrode lug; the rubber block on the positive electrode lug is positioned above the aluminum connecting strips; and the rubber block on the negative electrode lug are positioned above the nickel connecting strip. The internal resistance of the multi-winding core quasi-bipolar lug battery is reduced; the safety performance and the cycle performance of the multi-winding core quasi-bipolar lug battery are improved; and the electrode lugs consume few materials, so that the cost of the multi-winding core quasi-bipolar lug battery can be effectively reduced.
Description
[technical field]
The present invention relates to lithium ion battery, more particularly relate to a kind of architecture advances of high power capacity high-power lithium ion battery.
[background technology]
In the manufacture process of polymer Li-ion battery, traditional pure winding process or pure lamination process all have some limitations, the lithium battery of high power capacity requires that pole piece length is very long, pole piece long is in process of production not easy winding, easily occurs positive and negative plate dislocation and cause battery short circuit in winding; Compared with winding process, the cycle performance of battery of lamination is not fine, and the production efficiency of lamination is lower.In current lithium electricity manufacturing process, adopting lamination to add winding process can well comprehensive both advantage, disclose a kind of in parallel by adopting core all identical with width for multiple height in CN1787271A, with the technique of the security performance and cycle performance that improve battery, but in process implementing, CN1787271A adopts and welds together again by an aluminium nickel strap extraction by all core anode ears, the negative pole lug welding of all core is drawn by an aluminium nickel strap together again, technological operation is comparatively complicated, be unfavorable for the lifting of production efficiency, and because the material of positive and negative lug is different from aluminium nickel strap, also the internal resistance of battery can be increased, the existence of these drawbacks, limit the further lifting of battery performance greatly.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes the accurate Double-pole lug Battery And Its Manufacturing Methods of a kind of multi-winding-core, not only can improve security performance and the cycle performance of battery, and can simplified structure, reduces production difficulty, enhances productivity.
For achieving the above object, the present invention proposes the accurate Double-pole lug battery of a kind of multi-winding-core, the core group comprising shell and install in the enclosure, described core group comprises first core and at least one second core, described first core and the second core are connected in parallel, first core is stacked winding formed by negative plate, barrier film, positive plate, the positive plate of the first core is welded with positive pole ear, the upper end of positive pole ear is provided with blob of viscose, the negative plate of the first core is welded with negative lug, and the upper end of negative lug is provided with blob of viscose; Second core is stacked winding formed by negative plate, barrier film, positive plate, the positive plate of the second core is welded with aluminium intercell connector, and the thickness of aluminium intercell connector is 0.2mm, the negative plate of the second core is welded with nickel intercell connector, and the thickness of nickel intercell connector is 0.2mm; The upper end of all aluminium intercell connectors is welded on positive pole ear, and the upper end of nickel intercell connector is welded in negative lug, and the blob of viscose on positive pole ear is positioned at the top of aluminium intercell connector, and the blob of viscose in negative lug is positioned at the top of nickel intercell connector.
As preferably, described second core is equal with the width of the first core, highly unequal.
For achieving the above object, the invention allows for the manufacture method of the accurate Double-pole lug battery of a kind of multi-winding-core, comprise the following steps successively:
A, need according to battery capacity the sum determining inside battery core, thus determine the sheet number of the second core;
B, on positive plate, negative plate, weld positive pole ear and negative lug respectively, after negative plate, barrier film and positive plate being stacked successively, be wound into the first core;
C, respectively welding of aluminum intercell connector and nickel intercell connector on positive plate, negative plate, be wound into the second core after negative negative plate, barrier film and positive plate being stacked successively;
D, need first core and several the second core in parallel according to battery capacity, the upper end of aluminium intercell connector is welded with positive pole ear; The upper end of nickel intercell connector is welded with negative lug; Make core group;
E, the core group made is put into battery case, encapsulation obtains the accurate Double-pole lug finished battery of multi-winding-core;
On positive plate, weld positive pole ear in described b step, negative plate welds negative lug, be stained with blob of viscose respectively on positive pole ear and negative lug, blob of viscose adopts CPP blob of viscose.
Beneficial effect of the present invention: adopt two kinds of core to be formed in parallel in each battery core of the present invention, after multiple battery core parallel connection, the aluminium intercell connector that second core is drawn is welded on the positive pole ear that the first core is drawn, the nickel intercell connector that second core is drawn is welded in the negative lug that the first core is drawn, this structure can make intercell connector and lug adopt identical material, thus reduce the internal resistance of battery greatly, improve security performance and the cycle performance of battery, and, the implementation procedure of this structure is easy, production efficiency is high, intercell connector consumptive material is few, can effectively reduce battery cost.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the core group structural representation of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 2-1 is the structural representation of the first core in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 2-2 is structural representations of the second core in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 3-1 is the structural representation of anode ear in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 3-2 is structural representations of negative electrode lug in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 4-1 is the structural representation of aluminium intercell connector in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention;
Fig. 4-2 is structural representations of nickel intercell connector in the core group of the accurate Double-pole lug battery of a kind of multi-winding-core of the present invention.
[embodiment]
Consult Fig. 1,2-1,2-2,3-1,3-2,4-1,4-2, the accurate Double-pole lug battery of multi-winding-core, the core group comprising shell and install in the enclosure, described core group comprises one first core 6 and at least one second core 10, described first core 6 and the second core 10 are connected in parallel, first core 6 is stacked winding formed by negative plate 7, barrier film 8, positive plate 9, the positive plate 9 of the first core 6 is welded with positive pole ear 1, the upper end of positive pole ear 1 is provided with blob of viscose 3, the negative plate 7 of the first core 6 is welded with negative lug 2, and the upper end of negative lug 2 is provided with blob of viscose 3; Second core 10 is stacked winding formed by negative plate 7, barrier film 8, positive plate 9, and the negative plate 7 positive plate 9 of the second core 10 being welded with aluminium intercell connector 4, second core 10 is welded with nickel intercell connector 5; All aluminium intercell connectors 4 are connected with positive pole ear 1, and all nickel intercell connectors 5 are connected with negative lug 2.Described second core 10 is equal with the width of the first core 6, highly unequal.Connection between described aluminium intercell connector 4 and positive pole ear 1 is for being welded to connect, and the connection between nickel intercell connector 5 and negative lug 2 is for being welded to connect.
Manufacture the process of this polymer Li-ion battery, comprise the following steps:
A, need according to battery capacity the sum determining inside battery core, thus determine the sheet number of the second core 10;
B, on positive plate 9, negative plate 7, weld positive pole ear 1 and negative lug 2 respectively, after negative plate 7, barrier film 8 and positive plate 9 being stacked successively, be wound into the first core 6;
C, respectively welding of aluminum intercell connector 4 and nickel intercell connector 5 on positive plate 9, negative plate 7, be wound into the second core 10 after negative negative plate 7, barrier film 8 and positive plate 9 being stacked successively;
D, need first core 6 and several the second core 10 in parallel according to battery capacity, aluminium intercell connector 4 is welded with positive pole ear 1; Nickel intercell connector 5 welds with negative lug 2; Make core group;
E, the core group made is put into battery case, encapsulation obtains finished product.
Wherein, the manufacture method of the first core 6 is: on positive plate 9, weld positive pole ear 1, negative plate 7 welds negative lug 2, blob of viscose 3 adopts CPP blob of viscose, CPP is by polypropylene (PP) that curtain coating extrusion process is produced in plastic cement industry, CPP blob of viscose is positioned at lug upper end, the first core 6 is wound into after negative plate 7, barrier film 8 and positive plate 9 being stacked successively, blob of viscose 3 on positive pole ear 1 is positioned at the top of aluminium intercell connector 4, and the blob of viscose 3 in negative lug 2 is positioned at the top of nickel intercell connector 5.
The manufacture method of the second core 10 is: welding of aluminum intercell connector 4 on positive plate 9, and negative plate 7 welds nickel intercell connector 5, is wound into the second core 10 after negative plate 7, barrier film 8 and positive plate 9 being stacked successively.
Except CPP blob of viscose 3 position, the material of positive pole ear 1 is identical with the material of aluminium intercell connector 4, is aluminium intercell connector; Except CPP blob of viscose 3 position, the material of negative lug 2 is identical with the material of nickel intercell connector 5, is nickel bar.
Need according to battery capacity the sum determining inside battery core, thus determine the sheet number of the second core 10; According to battery capacity need by first core 6 and several second core 10 in parallel, aluminium intercell connector 4 is welded with anode ear 1; Nickel intercell connector 5 welds with negative electrode lug 2; Make core group; The core group made is put into battery case, encapsulation.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (3)
1. the accurate Double-pole lug battery of multi-winding-core, the core group comprising shell and install in the enclosure, it is characterized in that: described core group comprises first core (6) and at least one the second core (10), described first core (6) and the second core (10) are connected in parallel, first core (6) is by negative plate (7), barrier film (8), positive plate (9) stacks winding and forms, the positive plate (9) of the first core (6) is welded with positive pole ear (1), the upper end of positive pole ear (1) is provided with blob of viscose (3), the negative plate (7) of the first core (6) is welded with negative lug (2), the upper end of negative lug (2) is provided with blob of viscose (3), second core (10) is stacked winding formed by negative plate (7), barrier film (8), positive plate (9), the positive plate (9) of the second core (10) is welded with aluminium intercell connector (4), the thickness of aluminium intercell connector (4) is 0.2mm, the negative plate (7) of the second core (10) is welded with nickel intercell connector (5), and the thickness of nickel intercell connector (5) is 0.2mm, the upper end of all aluminium intercell connectors (4) is welded on positive pole ear (1), the upper end of nickel intercell connector (5) is welded in negative lug (2), blob of viscose (3) on positive pole ear (1) is positioned at the top of aluminium intercell connector (4), and the blob of viscose (3) in negative lug (2) is positioned at the top of nickel intercell connector (5).
2. the accurate Double-pole lug battery of a kind of multi-winding-core as claimed in claim 1, is characterized in that: described second core (10) is equal with the width of the first core (6), highly unequal.
3. a manufacture method for the accurate Double-pole lug battery of multi-winding-core, is characterized in that: comprise the following steps successively:
A, need according to battery capacity the sum determining inside battery core, thus determine the sheet number of the second core (10);
B, on positive plate (9), negative plate (7), weld upper positive pole ear (1) and negative lug (2) respectively, after negative plate (7), barrier film (8) and positive plate (9) being stacked successively, be wound into the first core (6);
C, respectively welding of aluminum intercell connector (4) and nickel intercell connector (5) on positive plate (9), negative plate (7), will bear successively after negative plate (7), barrier film (8) and positive plate (9) stack and be wound into the second core (10);
D, need first core (6) and several the second core (10) in parallel according to battery capacity, the upper end of aluminium intercell connector (4) is welded with positive pole ear (1); The upper end of nickel intercell connector (5) is welded with negative lug (2); Make core group;
E, the core group made is put into battery case, encapsulation obtains the accurate Double-pole lug finished battery of multi-winding-core;
On positive plate (9), positive pole ear (1) is welded in described b step, negative plate (7) welds negative lug (2), on positive pole ear (1) and negative lug (2), be stained with blob of viscose (3) respectively, blob of viscose (3) adopts CPP blob of viscose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426058.3A CN102916156B (en) | 2012-10-30 | 2012-10-30 | Multi-winding core quasi-bipolar lug battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426058.3A CN102916156B (en) | 2012-10-30 | 2012-10-30 | Multi-winding core quasi-bipolar lug battery and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102916156A CN102916156A (en) | 2013-02-06 |
| CN102916156B true CN102916156B (en) | 2015-03-25 |
Family
ID=47614454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210426058.3A Active CN102916156B (en) | 2012-10-30 | 2012-10-30 | Multi-winding core quasi-bipolar lug battery and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102916156B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450497A (en) * | 2016-12-08 | 2017-02-22 | 东莞市迈科新能源有限公司 | Multi-roll-core double-lug soft-package battery and production method thereof |
| CN107742692A (en) * | 2017-11-10 | 2018-02-27 | 上海卡耐新能源有限公司 | A kind of power battery module and electric car |
| CN108390106A (en) * | 2018-02-28 | 2018-08-10 | 北京国能电池科技股份有限公司 | A kind of battery and preparation method thereof |
| CN108963175A (en) * | 2018-06-23 | 2018-12-07 | 深圳市创景新能源科技有限公司 | The production method of the pole piece structure of battery, battery roll core and battery roll core |
| CN109301144A (en) * | 2018-10-30 | 2019-02-01 | 邦泰宏图（深圳）科技有限责任公司 | A kind of lithium ion battery and battery pack |
| CN113363486A (en) * | 2021-05-28 | 2021-09-07 | 东莞维科电池有限公司 | Soft package lithium ion battery |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007018833A (en) * | 2005-07-07 | 2007-01-25 | Furukawa Battery Co Ltd:The | Manufacturing method of storage battery |
| CN101188310A (en) * | 2007-12-14 | 2008-05-28 | 山东海霸通讯设备有限公司 | A phosphate Fe, lithium and aluminum shell column battery and its making technology |
| CN101640284A (en) * | 2009-06-05 | 2010-02-03 | 珠海汉格能源科技有限公司 | Cylinder type lithium ion battery cell and making method thereof |
| CN101626096B (en) * | 2009-08-05 | 2012-07-04 | 江西中投新能源有限公司 | Production method of chargeable lithium polymer battery for simultaneously low-temperature discharge and heavy-current discharge |
| CN201725841U (en) * | 2010-05-14 | 2011-01-26 | 深圳宝嘉能源有限公司 | Novel lithium-ion battery in multi-cell structure |
| CN101859912A (en) * | 2010-06-10 | 2010-10-13 | 天津市捷威动力工业有限公司 | Power cell jelly roll, power cell and manufacturing technology |
| CN202034447U (en) * | 2010-12-28 | 2011-11-09 | 北京宇鹏恒力科技有限公司 | Novel lithium ion parallel battery |
| CN202103131U (en) * | 2011-01-18 | 2012-01-04 | 东莞市迈科新能源有限公司 | Cell of soft-package Lithium-ion power battery |
| CN202339959U (en) * | 2011-12-16 | 2012-07-18 | 惠州市恒泰科技有限公司 | Multi-winding core lithium ion battery |
-
2012
- 2012-10-30 CN CN201210426058.3A patent/CN102916156B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102916156A (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102916156B (en) | Multi-winding core quasi-bipolar lug battery and manufacturing method thereof | |
| CN201438492U (en) | Polymer lithium-ion traction battery | |
| CN102664285A (en) | Lithium ion battery and combination method of pole pieces thereof | |
| CN108598354A (en) | A kind of multi pole ears battery core, multi-terminal battery, battery modules and preparation method thereof | |
| CN102683752B (en) | Stacked lithium ion power battery and manufacturing method thereof | |
| CN102024988A (en) | Coiled lithium-ion power battery core and manufacturing method thereof | |
| CN103700807B (en) | A kind of high-voltage lithium ion batteries and preparation method thereof | |
| CN205122703U (en) | Electrode subassembly of two -way coiling, including this electrode subassembly's lithium secondary battery , battery module and equipment | |
| CN203406360U (en) | Cover plate structure for square aluminium-shell lithium ion battery | |
| CN101908643A (en) | Power lithium ion battery and production method thereof | |
| CN104409781A (en) | Method for manufacturing square power polymer lithium ion battery | |
| CN112151746A (en) | Battery pole piece, special-shaped battery core, manufacturing method of special-shaped battery core and special-shaped battery | |
| CN105870511B (en) | A kind of manufacturing method of lithium ion laminated battery battery core | |
| CN102842700B (en) | A kind of Large Copacity height exports specific power poly-lithium battery structure | |
| CN202601797U (en) | Quasi-bipolar battery with multiple wound cores and tabs | |
| CN201655903U (en) | Battery with improved lamination structure | |
| CN203774408U (en) | Power energy-storage polymer lithium ion battery | |
| CN101582521B (en) | Coiled lithium-ion secondary battery taking winding needle as positive and negative electrodes and manufacturing method thereof | |
| CN205944278U (en) | High power polymer lithium ion battery extremely assembles and puts | |
| CN202758957U (en) | Novel high charge-discharge rate battery | |
| CN204927442U (en) | Tail welds formula power type battery | |
| CN201673968U (en) | Miniature polymer lithium ion battery with dissymmetrical assembly structure | |
| CN201845835U (en) | Coiled lithium ion power battery cell | |
| CN202454648U (en) | Novel easy-to-process lithium battery | |
| CN102956924A (en) | Manufacturing method of single-body lithium battery for high-capacity energy storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160304 Address after: 313000 Changxin economic and Technological Development Zone, Zhejiang, Huzhou Patentee after: CHANGXING TIANHONG LITHIUM-ION BATTERY TECHNOLOGY CO., LTD. Address before: 313000 No. four, No. 199, Changxing County economic and Technological Development Zone, Huzhou, Zhejiang Patentee before: Zhejiang Zhenlong Battery Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 313100 2-3 floor of No. 2 workshop, No. 559 the Great Wall Road, Changxing County Taihu street, Huzhou, Zhejiang. Patentee after: Zhejiang Tianhong lithium battery Limited by Share Ltd Address before: 313000 Changxin economic and Technological Development Zone, Huzhou, Zhejiang Patentee before: CHANGXING TIANHONG LITHIUM-ION BATTERY TECHNOLOGY CO., LTD. |