CN102694197B - Ring-type lithium ion battery - Google Patents
Ring-type lithium ion battery Download PDFInfo
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- CN102694197B CN102694197B CN201110068156.XA CN201110068156A CN102694197B CN 102694197 B CN102694197 B CN 102694197B CN 201110068156 A CN201110068156 A CN 201110068156A CN 102694197 B CN102694197 B CN 102694197B
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- Prior art keywords
- pole
- plate
- shell
- pole plate
- lithium ion
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 229910017704 MH-Ni Inorganic materials 0.000 description 1
- 229910017739 MH—Ni Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
The invention provides a ring-type lithium ion battery which has an improved structure, high security, good heat dissipation and long service life. The ring-type lithium ion battery provided in the invention is implemented according to the following technical scheme: the ring-type lithium ion battery comprises a cylindrical surface structured outer shell, a cylindrical surface structured inner shell nested within the inner cavity of the outer shell, a battery cell located between the outer shell and the inner shell, and electrodes located at two ends of the battery cell, wherein the battery cell comprises a plurality of positive plates, a plurality of separation films and a plurality of negative plates which are connected in sequence in a wrapping manner, a positive plate and a negative plate which is adjacent to the positive plate is separated by an separation film; the electrodes comprise electrode pads, electrode poles and electrode lugs, the electrode lugs are formed by wrapping outwardly-protruded blank strip portions on external ends of the positive plates or the negative plates of the battery cell, the electrode lugs are connected with the positive plates or the negative plates as an integral body, the electrode lugs are directly connected with the electrode pads, the plane of the electrode pads is vertical to the outer shell and the cylindrical surface of the outer shell, the electrode pads is fixedly connected with the inner shell or the outer shell in a stamping manner, and the electrode poles are arranged on the electrode pads.
Description
Technical field
The invention belongs to lithium-ion-power cell technical field, particularly relate to a kind of annular lithium ion battery.
Background technology
Lithium ion battery is the rechargeable battery of new generation grown up after MH-Ni battery, the priority research areas that operating voltage is high, energy density is large because having, fail safe is good, lightweight, self discharge is little, have extended cycle life, memory-less effect, the advantage such as pollution-free become new energy development.
In prior art, lithium ion battery adopts square or circular solids structure, due to structure also imperfection, there is the shortcomings such as security performance is low, charge and discharge cycles number of times is few, serviceability is poor.Be specially: existing lithium ion battery, due under operating state, inside battery ion high-speed motion, internal temperature raises and cannot outwards discharge, thus causes battery case to be out of shape, inner pole piece is out of shape, spacing changes, and affects battery charging and discharging quality, finally causes battery performance unstable, explosive, the life-span is short.
Along with the fast development of electric motor car industry, the fail safe of electrokinetic cell receives to be paid close attention to widely.In prior art, Large Copacity, powerful electrokinetic cell are all through and carry out external series or in parallel and composition to single battery.Affect the reason of electrokinetic cell series connection group or also joint group fail safe mainly: the heat produced under forming the battery cell consistency difference each other of battery pack, operating state cannot be discharged in time, accumulate gradually, last thermal runaway produces the security incidents such as on fire from explosion, brings harm and loss to client.
Therefore, for lithium ion battery, need to improve from structure.
Summary of the invention
The object of the present invention is to provide a kind of annular lithium ion battery, improve structure, fail safe is high, good heat dissipation, life-span be long.
The present invention is achieved through the following technical solutions:
Annular lithium ion battery, includes: the shell of cylindrical surface structure, the inner casing of the cylindrical surface structure be nested in shell inner cavity, battery core between shell and inner casing and be positioned at the electrode at battery core two ends; Described battery core comprises multi-disc positive plate, barrier film and negative plate and adopts winding method arrangement to be connected, and barrier film is interval between adjacent positive plate, negative plate; Wherein, described electrode includes: pole plate, pole and lug; Described lug is that the outwardly blank tape winds portions in the outer end of the positive plate of battery core or negative plate is formed, and lug and positive plate or negative plate connect as one; Described lug is directly connected with pole plate, and pole plate plane orthogonal is in the face of cylinder of shell and shell, and pole plate is fixedly connected with by impact style with inner casing or shell, and pole plate is provided with pole.
Conductive adhesive layer is provided with between described lug and pole plate.
To sum up the invention has the beneficial effects as follows:
Annular lithium ion battery of the present invention, is made up of shell, inner casing, battery core, electrode, hollow structure, and electrode is arranged on battery core two ends, includes pole plate, pole and lug.Lug is formed by positive plate or negative plate margin tape wrapping, with pole plate Full connected, forms full extreme ear structure; For improving the conductivity between lug and pole plate, pole plate also scribbles conducting resinl.Generally, extreme ear structure provided by the invention, adopts collector blank tape to be lug, does not need external lug, insulating tape is not needed to carry out sealing-in, adopt the battery of this structure, specific energy is large, and internal resistance is little, homogeneous current distribution, decrease the operation of connecting tab, be conducive to industrialization and use, can greatly enhance productivity.Pole plate and shell or inner casing are sealedly and fixedly connected by punching press, the capacity of electrokinetic cell of the present invention is between 20-400Ah, can larger capacity be held, not need to use a large amount of battery cells, effectively can solve the problem that existing electrokinetic cell consistency is poor, heat radiation is difficult, the life-span is short.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of annular lithium ion battery of the present invention;
Fig. 2 is the plan structure schematic diagram of annular lithium ion battery of the present invention;
Fig. 3 is the perspective view of annular lithium ion battery embodiment one of the present invention;
Fig. 4 is the perspective view of annular lithium ion battery embodiment two of the present invention;
Fig. 5 is the perspective view of annular lithium ion battery embodiment three of the present invention.
Embodiment
The invention discloses a kind of annular lithium ion battery, as Fig. 1, include: the shell 1 of cylindrical surface structure, be nested in the inner casing 2 of the cylindrical surface structure in shell 1 inner chamber, the battery core 3 between shell and inner casing and be positioned at the electrode 4 at battery core two ends; Described battery core 3 comprises multi-disc positive plate, barrier film and negative plate and adopts winding method arrangement to be connected, and barrier film is interval between adjacent positive plate, negative plate; Wherein, described electrode 4 includes: pole plate 42, pole and lug 41; The outwardly blank tape winds portions of the positive plate that described lug 41 is battery core or the outer end of negative plate and being formed, lug and positive plate or negative plate connect as one; Described lug is directly connected with pole plate, and pole plate plane orthogonal is in the face of cylinder of shell and shell, and pole plate is fixedly connected with by impact style with inner casing or shell, and pole plate 42 is provided with pole.
Conductive adhesive layer is provided with between described lug 41 and pole plate 42.The setting of conductive adhesive layer can increase the conductivity of lug and pole plate contact-making surface.
In order to prevent current leakage on pole plate 42 in shell, at shell 1 and pole plate 42 contact area, arrange body seal glue-line, equally, powering on to flow to prevent pole plate drains to inner casing, at inner casing and pole plate contact area, is provided with inner casing sealant layer equally.
Described pole plate 42 adopts cirque structure, in addition for the ease of the extraction of electrode, pole plate is also provided with pole, and pole is fixedly connected with by riveted joint with pole plate 42.
Described pole is arranged on the centre position of pole plate 42 or the marginal position of pole plate 42.
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment one:
As Fig. 1,2,3, the annular lithium ion battery of the present embodiment includes shell 1, inner casing 2, battery core 3 and electrode 4 four parts, and shell 1 and inner casing 2 are respectively cylindric; Shell 1 is provided with the outer fin 11 vertical with shell cylindrical outer surface, inner casing 2 is provided with vertical with inner casing internal surface of column in fin 21, the inner chamber of described inner casing 2 is the air flow channel of up/down perforation; Battery core 3 is wound between shell 1 and inner casing 2, and being reeled successively by positive plate, barrier film and negative plate forms; Electrode 4 is arranged on the upper/lower terminal of battery core 3, comprises pole plate 42, pole 43 and lug 41 3 part.
At shell 1 and pole plate 42 contact area, the body seal glue-line of setting is loop configuration; At inner casing and pole plate contact area, be provided with the inner casing sealant layer of loop configuration equally.
Pole plate 42 is also provided with two explosion-proof valves 5 and two poles 43, in cross four ends being symmetrically distributed in pole plate 42, pole 43 adopts bar shape boss structure.
Embodiment two:
The present embodiment is different from embodiment one to be, as Fig. 4, pole plate 42 is provided with an explosion-proof valve 5 and a pole 43, the two ends at the center being distributed in pole plate 42 that is centrosymmetric, pole 43 adopts bar shape boss structure.
Embodiment three:
The present embodiment is different from embodiment two to be, as Fig. 5, pole plate is provided with a pole 44, pole 44 is the torus concentric with inner casing, and the inner surface of pole 44 is provided with screw thread 441; Pole plate is provided with a safety valve.
Above-mentioned listed specific implementation is nonrestrictive, and to one skilled in the art, not departing from the scope of the invention, the various modifications and variations of carrying out, all belong to protection scope of the present invention.
Claims (10)
1. annular lithium ion battery, includes: the shell (1) of cylindrical surface structure, the inner casing (2) of the cylindrical surface structure be nested in shell (1) inner chamber, battery core (3) between shell and inner casing and be positioned at the electrode (4) at battery core two ends; Described battery core (3) comprises multi-disc positive plate, barrier film and negative plate, and described multi-disc positive plate, barrier film and negative plate adopt winding method arrangement to be connected, and barrier film is interval between adjacent positive plate, negative plate; It is characterized in that: described electrode (4) includes: pole plate (42), pole and lug (41); The outwardly blank tape winds portions of the positive plate that described lug (41) is battery core or the outer end of negative plate and being formed, lug and positive plate or negative plate connect as one; Described lug is directly connected with pole plate, and pole plate plane orthogonal is in the face of cylinder of shell and shell, and pole plate is fixedly connected with by impact style with inner casing or shell, and (42) are provided with pole with pole plate.
2. annular lithium ion battery as claimed in claim 1, is characterized in that: be provided with conductive adhesive layer between described lug (41) and pole plate (42).
3. annular lithium ion battery as claimed in claim 2, is characterized in that: at described shell (1) and pole plate (42) contact area, arrange body seal glue-line, at described inner casing and pole plate contact area, be provided with inner casing sealant layer.
4. annular lithium ion battery as claimed in claim 2, is characterized in that: described pole plate (42) adopts cirque structure, and pole plate is provided with pole, and pole is fixedly connected with by riveted joint with pole plate (42).
5. the annular lithium ion battery according to any one of Claims 1-4, is characterized in that: described pole is arranged on the centre position of pole plate (42) or the marginal position of pole plate (42).
6. annular lithium ion battery as claimed in claim 5, it is characterized in that: include shell (1), inner casing (2), battery core (3) and electrode (4) four parts, shell (1) and inner casing (2) are respectively cylindric; Shell (1) is provided with the outer fin (11) vertical with shell cylindrical outer surface, inner casing (2) is provided with vertical with inner casing internal surface of column in fin (21), the inner chamber of described inner casing (2) is the air flow channel of up/down perforation; Battery core (3) is wound between shell (1) and inner casing (2), is reeled successively form by positive plate, barrier film and negative plate; Electrode (4) is arranged on the upper/lower terminal of battery core (3), comprises pole plate (42), pole (43) and lug (41) three part.
7. annular lithium ion battery as claimed in claim 6, is characterized in that: at described shell (1) and pole plate (42) contact area, the body seal glue-line of setting is loop configuration; At inner casing and pole plate contact area, be provided with the inner casing sealant layer of loop configuration equally.
8. annular lithium ion battery as claimed in claim 6, it is characterized in that: described pole plate (42) is provided with two explosion-proof valves (5) and two poles (43), in cross four ends being symmetrically distributed in pole plate (42), pole (43) adopts bar shape boss structure.
9. annular lithium ion battery as claimed in claim 5, it is characterized in that: described pole plate (42) is provided with an explosion-proof valve (5) and a pole (43), be centrosymmetric the two ends at the center being distributed in pole plate (42), and pole (43) adopts bar shape boss structure.
10. annular lithium ion battery as claimed in claim 5, it is characterized in that: described pole plate is provided with a pole (44), pole (44) is the torus concentric with inner casing, and the inner surface of pole (44) is provided with screw thread (441); Pole plate is provided with a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068156.XA CN102694197B (en) | 2011-03-21 | 2011-03-21 | Ring-type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068156.XA CN102694197B (en) | 2011-03-21 | 2011-03-21 | Ring-type lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102694197A CN102694197A (en) | 2012-09-26 |
| CN102694197B true CN102694197B (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110068156.XA Active CN102694197B (en) | 2011-03-21 | 2011-03-21 | Ring-type lithium ion battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN102694197B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633306B (en) * | 2015-12-17 | 2024-04-30 | 佛山市欣源电子股份有限公司 | Heat dissipation type lithium ion battery |
| EP3276701A1 (en) * | 2016-07-26 | 2018-01-31 | VARTA Microbattery GmbH | Electrochemical cell and device with the cell |
| CN106684497A (en) * | 2016-12-30 | 2017-05-17 | 中国电子科技集团公司第十八研究所 | Self-cooling battery |
| CN108808056B (en) * | 2017-05-02 | 2023-12-22 | 奥飞娱乐股份有限公司 | Rotatable toy |
| CN112382785B (en) * | 2020-11-14 | 2021-08-03 | 南京工业大学 | Nested lithium ion battery-based automobile battery pack for enhancing thermal management safety |
| CN112751112B (en) * | 2020-12-30 | 2023-01-13 | 广东微电新能源有限公司 | Battery monomer, method for preparing battery monomer and electronic equipment |
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| CN2678145Y (en) * | 2004-02-18 | 2005-02-09 | 深圳市瑞达电源有限公司 | Sealing structure for electrode post of valve control lead-acid battery |
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| CN101867049A (en) * | 2010-06-17 | 2010-10-20 | 惠州亿纬锂能股份有限公司 | Lithium battery |
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| CN202034446U (en) * | 2011-03-21 | 2011-11-09 | 珠海银通新能源有限公司 | Annular lithium ion battery |
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| US7615317B2 (en) * | 2005-05-17 | 2009-11-10 | 3M Innovative Properties Company | N-oxide redox shuttles for rechargeable lithium-ion cell |
| JP4802217B2 (en) * | 2008-06-13 | 2011-10-26 | 株式会社東芝 | Nonaqueous electrolyte secondary battery |
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2011
- 2011-03-21 CN CN201110068156.XA patent/CN102694197B/en active Active
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|---|---|---|---|---|
| CN2678145Y (en) * | 2004-02-18 | 2005-02-09 | 深圳市瑞达电源有限公司 | Sealing structure for electrode post of valve control lead-acid battery |
| CN101752611A (en) * | 2008-12-04 | 2010-06-23 | 深圳市比克电池有限公司 | Lithium battery |
| CN201397839Y (en) * | 2009-04-21 | 2010-02-03 | 天津力神电池股份有限公司 | High-capacity lithium ion power battery pole |
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Non-Patent Citations (1)
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| CN102694197A (en) | 2012-09-26 |
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Address after: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Applicant after: Zhuhai Yinlong New Energy Co.,Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Applicant before: ZHUHAI YINTONG ENERGY Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHUHAI YINTONG ENERGY CO., LTD. TO: ZHUHAI YINLONG NEW ENERGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee after: Zhuhai silver dragon new energy Limited by Share Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee before: Zhuhai Yinlong New Energy Co.,Ltd. |
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Address after: 519000 Guangdong province Zhuhai City Sanzao town Jinwan District Jinhu Road No. 16 Patentee after: YINLONG ENERGY Co.,Ltd. Address before: 519000 Guangdong Province, Zhuhai City Road Jida Huajing Les Loges Du Park Hotel Building 1 Patentee before: Zhuhai silver dragon new energy Limited by Share Ltd. |
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