CN102916159A - High-power lithium battery - Google Patents
High-power lithium battery Download PDFInfo
- Publication number
- CN102916159A CN102916159A CN2012104402724A CN201210440272A CN102916159A CN 102916159 A CN102916159 A CN 102916159A CN 2012104402724 A CN2012104402724 A CN 2012104402724A CN 201210440272 A CN201210440272 A CN 201210440272A CN 102916159 A CN102916159 A CN 102916159A
- Authority
- CN
- China
- Prior art keywords
- battery
- nickel
- afflux circle
- cathode
- current collecting
- 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.)
- Granted
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000000641 cold extrusion Methods 0.000 abstract 1
- 230000000191 radiation effect Effects 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a high-power lithium battery, comprising a core body of a battery core, an aluminum shell, a nickel current collecting ring, an aluminum current collecting ring, a cathode conductive sheet, a cathode leading-out nut, a cathode cap, a sealing ring and an anode leading-out nut; one layer of the aluminum shell covers the outer surface of the core body of the battery core; and the aluminum current collecting ring is mounted at one end of the core body of the battery core and the nickel current collecting ring is arranged at the other end of the core body of the battery core. According to the high-power lithium battery, an end face welding technology is used for manufacturing the battery core with the aluminum current collecting ring and the nickel current collecting ring at the two ends; a belt arc shape which is punched at the bottom of the aluminum shell is directly welded with the aluminum current collecting ring at an anode end of the battery core through laser by anode current conduction; the conduction capability of current charging/discharging of the anode end is improved and the battery is prevented from being excessively heated; when the inner part of the battery has a fault, inner pressure of the battery is increased; when the certain pressure is reached, an arc-shaped body at the bottom of the aluminum shell is overturned; a welding point is snapped so that the battery is safer to use; a U-shaped bowl made of a nickel material is arranged at a cathode end; laser welding, instead of electric resistance welding in the prior art, is used for welding the bottom, so that the welding effect is better, current is effectively prevented from being split; and the battery adopts a cold-extrusion type aluminum shell so that the weight is light and the heat radiation effect is good.
Description
[technical field]
The present invention relates to the technical field of lithium battery, particularly the technical field of the lithium-ion-power cell of high current charge-discharge.
[background technology]
Development along with twentieth century microelectric technique, the equipment of miniaturization is increasing, power supply has been proposed very high requirement, lithium battery has entered the large-scale practical stage thereupon, lithium battery mainly contains two classes: lithium metal battery and lithium ion battery, lithium ion battery originally was mainly used in mobile phone, on the small sized personal electrical appliances such as notebook computer, the continuous expansion that improves constantly and use the field along with manufacturing technology, lithium ion battery begins to electric motor car, motorcycle, the development of the energy storage fields such as automobile, lithium ion battery also begins to develop to large-capacity high-power from original low capacity, to satisfy increasing demand, but traditional battery adopts box hat, radiating effect is bad, and the electric current deriving structure designs according to small-capacity cells, and negative pole adopts at the bottom of the electric resistance welding, and the anodal aluminium flake of growing of using is cooked the conduction handle, seriously place restrictions on high current charge-discharge, affected the result of use of battery.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes a kind of high power lithium battery, can significantly reduce the resistance that electric current charges and discharge, and is lightweight, good heat dissipation effect, and use procedure is safer.
For achieving the above object, the present invention proposes a kind of high power lithium battery, comprise the battery core core body, aluminum hull, nickel afflux circle, aluminium afflux circle, cathode conductive film, negative pole is drawn nut, cathode cover cap, sealing ring, positive pole is drawn nut, the outer surface of described battery core core body is surrounded by one deck aluminum hull, one end of described battery core core body is equipped with aluminium afflux circle, the other end is equipped with nickel afflux circle, the outside of described nickel afflux circle is provided with negative pole and draws nut, cathode cover cap and sealing ring, described negative pole is drawn between nut and the nickel afflux circle and is provided with cathode conductive film, described aluminum hull and aluminium afflux circle junction are arc, and the outside of described aluminium afflux circle is provided with positive pole and draws nut.
As preferably, described cathode conductive film is U-shaped nickel bowl, and described cathode conductive film is positioned at the center of nickel afflux circle, the bottom of described cathode conductive film is connected by laser welding with nickel afflux circle, replace the way at the bottom of the usefulness Resistance Welding in original technology, avoid current distributing, guarantee the effect of welding.
As preferably, the oral area of described cathode conductive film and cathode cover cap conduct electricity very well by ultrasonic wave or laser welding.
As preferably, also comprise plastic insulation sheet and bleeder port, described plastic insulation sheet is between aluminum hull and aluminium afflux circle, and the side that described positive pole is drawn nut is provided with bleeder port.
As preferably; the curved bottom of described aluminum hull and aluminium afflux circle junction and aluminium afflux circle have replaced the way of welding conduction handle in the conventional art by laser welding, have improved the conducting power that the electric current of positive terminal charges and discharge; avoid battery when discharging and recharging, to generate heat; and by laser welding arc aluminum casing bottom, when inside battery broke down, inner pressure of battery increased; when reaching certain pressure; the aluminum casing bottom arc body will overturn, and breaks pad, plays the safeguard protection effect.
Beneficial effect of the present invention: the present invention is by adopting the end face solder technology to make the battery core of two ends band aluminium afflux circle and nickel afflux circle, the aluminium matter current collection circle direct with camber and the battery core positive terminal that anodal water conservancy diversion utilizes aluminum casing bottom to press and is washed into welds with laser, in the conducting power that raising positive terminal electric current discharges and recharges, avoided the battery excessive heating, and when inside battery breaks down, inner pressure of battery increases, when reaching certain pressure, the aluminum casing bottom arc body will overturn, break pad, battery is used safer, the U-shaped bowl that negative pole end adopts the nickel material to make, and replace way at the bottom of the Resistance Welding in original technology by laser welding, welding effect is better, effectively prevents current distributing, and this battery adopts cold-extruded type aluminum hull, lightweight, good heat dissipation effect.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is that the master of a kind of high power lithium battery of the present invention looks cutaway view.
Among the figure: 1-battery core core body, 2-aluminium afflux circle, 3-nickel afflux circle, 4-aluminum hull, 5-cathode conductive film, 6-negative pole are drawn nut, the 7-positive pole is drawn nut, 8-sealing ring, 9-cathode cover cap, 10-plastic insulation, 11-bleeder port.
[embodiment]
Consult Fig. 1, a kind of high power lithium battery of the present invention, comprise battery core core body 1, aluminum hull 4, nickel afflux circle 3, aluminium afflux circle 2, cathode conductive film 5, negative pole is drawn nut 6, cathode cover cap 9, sealing ring 8, positive pole is drawn nut 7, the outer surface of described battery core core body 1 is surrounded by one deck aluminum hull 4, one end of described battery core core body 1 is equipped with aluminium afflux circle 2, the other end is equipped with nickel afflux circle 3, the outside of described nickel afflux circle 3 is provided with negative pole and draws nut 6, cathode cover cap 9 and sealing ring 8, described negative pole is drawn between nut 6 and the nickel afflux circle 3 and is provided with cathode conductive film 5, described aluminum hull 4 is arc with aluminium afflux circle 2 junctions, the outside of described aluminium afflux circle 2 is provided with positive pole and draws nut 7, described cathode conductive film 5 is U-shaped nickel bowl, described cathode conductive film 5 is positioned at the center of nickel afflux circle 3, the bottom of described cathode conductive film 5 and nickel afflux circle 3 are connected by laser welding, the oral area of described cathode conductive film 5 and cathode cover cap 9 are by ultrasonic wave or laser welding, also comprise plastic insulation sheet 10 and bleeder port 11, described plastic insulation sheet 10 is between aluminum hull 4 and aluminium afflux circle 2, the side that described positive pole is drawn nut 7 is provided with bleeder port 11, and described aluminum hull 4 passes through laser welding with curved bottom and the aluminium afflux circle 2 of aluminium afflux circle 2 junctions.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (5)
1. high power lithium battery, it is characterized in that: comprise battery core core body (1), aluminum hull (4), nickel afflux circle (3), aluminium afflux circle (2), cathode conductive film (5), negative pole is drawn nut (6), cathode cover cap (9), sealing ring (8), positive pole is drawn nut (7), the outer surface of described battery core core body (1) is surrounded by one deck aluminum hull (4), one end of described battery core core body (1) is equipped with aluminium afflux circle (2), the other end is equipped with nickel afflux circle (3), the outside of described nickel afflux circle (3) is provided with negative pole and draws nut (6), cathode cover cap (9) and sealing ring (8), described negative pole is drawn between nut (6) and the nickel afflux circle (3) and is provided with cathode conductive film (5), described aluminum hull (4) is arc with aluminium afflux circle (2) junction, and the outside of described aluminium afflux circle (2) is provided with positive pole and draws nut (7).
2. a kind of high power lithium battery as claimed in claim 1, it is characterized in that: described cathode conductive film (5) is U-shaped nickel bowl, described cathode conductive film (5) is positioned at the center of nickel afflux circle (3), and the bottom of described cathode conductive film (5) is connected by laser welding with nickel afflux circle (3).
3. a kind of high power lithium battery as claimed in claim 2 is characterized in that: the oral area of described cathode conductive film (5) and cathode cover cap (9) are by ultrasonic wave or laser welding.
4. a kind of high power lithium battery as claimed in claim 1, it is characterized in that: also comprise plastic insulation sheet (10) and bleeder port (11), described plastic insulation sheet (10) is positioned between aluminum hull (4) and the aluminium afflux circle (2), and the side that described positive pole is drawn nut (7) is provided with bleeder port (11).
5. such as each described a kind of high power lithium battery in the claim 1 to 4, it is characterized in that: described aluminum hull (4) passes through laser welding with curved bottom and the aluminium afflux circle (2) of aluminium afflux circle (2) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440272.4A CN102916159B (en) | 2012-11-06 | 2012-11-06 | High-power lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440272.4A CN102916159B (en) | 2012-11-06 | 2012-11-06 | High-power lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102916159A true CN102916159A (en) | 2013-02-06 |
| CN102916159B CN102916159B (en) | 2014-12-24 |
Family
ID=47614457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440272.4A Active CN102916159B (en) | 2012-11-06 | 2012-11-06 | High-power lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102916159B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311567A (en) * | 2013-06-13 | 2013-09-18 | 东莞电子科技大学电子信息工程研究院 | Novel lithium battery |
| CN107968165A (en) * | 2017-11-13 | 2018-04-27 | 泰兴市振兴电子有限公司 | A kind of screw-type lithium battery cap |
| CN113039681A (en) * | 2018-11-05 | 2021-06-25 | 特斯拉公司 | Battery with electrode without pole ear |
| WO2023279574A1 (en) * | 2021-07-06 | 2023-01-12 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612373A (en) * | 2003-10-15 | 2005-05-04 | 三星Sdi株式会社 | Integrated cap assembly of a secondary battery and fabricating method thereof |
| US20080292961A1 (en) * | 2007-05-22 | 2008-11-27 | Hitachi Vehicle Energy, Ltd. | Lithium-ion secondary battery |
| CN201766130U (en) * | 2010-09-08 | 2011-03-16 | 徐敖奎 | Secondary lithium battery |
| CN202231115U (en) * | 2011-09-08 | 2012-05-23 | 鞍山凯信环保节能工程技术有限公司 | Cylindrical lithium ion power battery |
| CN202905861U (en) * | 2012-11-06 | 2013-04-24 | 徐敖奎 | High power lithium battery |
-
2012
- 2012-11-06 CN CN201210440272.4A patent/CN102916159B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612373A (en) * | 2003-10-15 | 2005-05-04 | 三星Sdi株式会社 | Integrated cap assembly of a secondary battery and fabricating method thereof |
| US20080292961A1 (en) * | 2007-05-22 | 2008-11-27 | Hitachi Vehicle Energy, Ltd. | Lithium-ion secondary battery |
| CN201766130U (en) * | 2010-09-08 | 2011-03-16 | 徐敖奎 | Secondary lithium battery |
| CN202231115U (en) * | 2011-09-08 | 2012-05-23 | 鞍山凯信环保节能工程技术有限公司 | Cylindrical lithium ion power battery |
| CN202905861U (en) * | 2012-11-06 | 2013-04-24 | 徐敖奎 | High power lithium battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311567A (en) * | 2013-06-13 | 2013-09-18 | 东莞电子科技大学电子信息工程研究院 | Novel lithium battery |
| CN107968165A (en) * | 2017-11-13 | 2018-04-27 | 泰兴市振兴电子有限公司 | A kind of screw-type lithium battery cap |
| CN113039681A (en) * | 2018-11-05 | 2021-06-25 | 特斯拉公司 | Battery with electrode without pole ear |
| WO2023279574A1 (en) * | 2021-07-06 | 2023-01-12 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102916159B (en) | 2014-12-24 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XU AOKUI Effective date: 20150513 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150513 Address after: 313100 No. 1346 Taihu Avenue, Changxing County economic and Technological Development Zone, Zhejiang Patentee after: Zhejiang Xinghai Energy Technology Co.,Ltd. Address before: 313100 Zhejiang city of Huzhou province Changxing County economic and Technological Development Zone Taihu Road No. 1346 Zhejiang Xinghai Energy Technology Co. Patentee before: Xu Aokui |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 313100 Changxin Economic Development Zone, Zhejiang, Huzhou Patentee after: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. Address before: 313100 No. 1346 Taihu Avenue, Changxing County economic and Technological Development Zone, Zhejiang Patentee before: Zhejiang Xinghai Energy Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 Changxing Economic Development Zone, Huzhou City, Zhejiang Province Patentee after: Zhejiang Xinghai Energy Technology Co.,Ltd. Address before: 313100 Changxing Economic Development Zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |