CN2824317Y - Aluminium shell cylinder shaped lithium ion cell - Google Patents
Aluminium shell cylinder shaped lithium ion cell Download PDFInfo
- Publication number
- CN2824317Y CN2824317Y CNU2005200602360U CN200520060236U CN2824317Y CN 2824317 Y CN2824317 Y CN 2824317Y CN U2005200602360 U CNU2005200602360 U CN U2005200602360U CN 200520060236 U CN200520060236 U CN 200520060236U CN 2824317 Y CN2824317 Y CN 2824317Y
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- CN
- China
- Prior art keywords
- battery
- lithium ion
- cell
- housing
- utility
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Filling, Topping-Up Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of a lithium ion cell, particularly an aluminium shell cylinder-shaped lithium ion cell. The utility model adopts an aluminium shell to produce a cell casing and a cell core, and the cell core is in a winding state and is positioned in the casing, A positive pole ear of the cell core is welded on the upper part of an aluminium shell wall or a cap hat, a negative pole ear of the cell core is connected with a rivet on the cap hat and the cap hat is provided with a charge hole. A steel ball is clamped and embedded in the charge hole. After the utility model adopts the structure, the mode of first forming and then closing can be adopted in the production process, therefore the situations that gas generated in the forming process causes the bottom of he cell to be expanded and projected and an explosion-proof valve is punched and opened can not occur. The cell has safety, and in addition, the utility model has the advantages of simple production process and convenient bulk production.
Description
Technical field:
The utility model relates to technical field of lithium ion, refers in particular to a kind of aluminum shell column shape lithium ion battery.
Background technology:
Along with the development of modern society, digital products such as small type mobile devices such as video camera, mobile DVD and notebook computer are universal day by day, and these mobile devices are because function is more and more, and are also more and more higher to the energy requirement of the mobile energy.Cylindrical battery has the energy density higher than square battery, so a lot of mobile device uses column lithium ion battery.Cylindrical battery in the market generally adopts irony nickel plating housing, claim that traditionally this shell is a box hat, the operation that changes into is again sealed in the general employing of box hat cylindrical battery earlier, and lithium ion battery changes into meeting generation gas in formation SEI (the Solid electrolyte interface solid electrolyte interface) membrane process, and these gases can cause inner pressure of battery to raise and make the battery drum end and wash explosion-proof valve open.
The utility model content:
The purpose of this utility model is to overcome the above-mentioned deficiency of product, improves the column lithium ion battery manufacturing process, provides a kind of safe and can improve the cylindrical aluminium case lithium ion battery of the weight energy density of battery.
The technical solution adopted in the utility model is: the utility model adopts aluminum hull to manufacture battery container and battery, this battery is rolled and places in the housing, the positive pole ear of battery is welded on aluminum hull wall top or the block, the negative lug of battery is connected to the rivet on the block, offer a liquid injection hole on the described block, a steel ball card is embedded in this liquid injection hole place.
Described positive pole ear adopts ultrasonic bonding or laser welding on aluminum hull wall top or block, and negative lug adopts resistance welded or ultrasonic bonding or laser welding on rivet.
Described block welds together by method for laser welding and housing.
The shell wall of described housing or shell bottom are provided with rule or irregular explosion-proof groove.
Adopt the utility model and common cylindrical steel housing battery that two tangible advantages are relatively arranged: at first, after the utility model adopts this structure, it in process of production, the mode that changes into rear enclosed earlier that can adopt, so the gas that can occur producing in the formation process and cause the battery drum end and wash the situation of explosion-proof valve open does not make battery have more fail safe.Secondly, the density contrast of aluminium seldom have only iron density 1/3rd, the cylindrical battery weight energy density made from aluminum hull is higher than battery.
Description of drawings:
Fig. 1 is the schematic diagram of the utility model battery;
Fig. 2 is the battery schematic diagram that the utility model has welded lug.
Embodiment:
See Fig. 1,2, the utility model comprises: adopt aluminum hull to manufacture battery container (scheming not shown) and battery 2.This battery 2 is rolled and places in the housing, the positive pole ear 21 of battery 2 is welded in aluminum hull wall top or blocks a shot on 1, the negative lug 22 of battery 2 is connected to the rivet 12 on the block, offers a liquid injection hole 11, one steel balls (scheming not shown) inlay card on the described block 1 in these liquid injection hole 11 places.Be placed with down insulating trip in the housing, prevent that short-circuit conditions from appearring in battery 2 bottoms.
In the present embodiment, negative lug 22 is positioned at the center of battery 2, and positive pole ear 21 is positioned at the side of battery.In order to prevent that positive and negative electrode lug 21,22 from producing short circuits, be enclosed with insulation gummed paper 3 in the external part of both positive and negative polarity lug 21,22.
Described positive pole ear 21 adopts ultrasonic bonding or laser welding in aluminum hull wall top or block a shot on 1, and negative lug 22 adopts resistance welded or ultrasonic bonding or laser welding on rivet 12.Described block 1 welds together by method for laser welding and housing 1.
In order to guarantee the safety of battery, can rule or irregular explosion-proof groove be set in the shell wall or the shell bottom of described housing.
The utility model is described in further detail below in conjunction with drawings and Examples.
Winding battery 2, be connected to positive pole ear 21 on the aluminium sheet of block 1 by supersonic welding, the negative lug 22 of battery 2 passed behind the insulation cushion centre bore be welded on the rivet at block 1 center with the electric resistance welding method, following insulating trip is put into aluminium casing, to weld 1 the battery 2 of blocking a shot again and pack in the housing, will block a shot behind the correction position 1 is welded on the housing.To weld good semi-finished product then and carry out drying, fluid injection, change into, then steel ball will be pressed into liquid injection hole 11, finish behind partial volume and the cover heat-shrink tube again.
Winding battery 2, following insulating trip is put into aluminium casing, again battery 2 is packed in the housing, positive pole ear 21 is connected to the upper end of housing wall by supersonic welding, the negative lug 22 of battery 2 passed behind the insulation cushion centre bore be welded on the rivet 12 at block 1 center with the electric resistance welding method, pack in the housing welding 1 the battery 2 of blocking a shot, will block a shot behind the correction position 1 is welded on the housing.To weld good semi-finished product then and carry out drying, fluid injection, change into, then steel ball will be pressed into liquid injection hole 11, finish behind partial volume and the cover heat-shrink tube again.
Claims (4)
1. aluminum shell column shape lithium ion, comprise: adopt aluminum hull to manufacture battery container and battery (2), this battery (2) is rolled and places in the housing, it is characterized in that: the positive pole ear (21) of battery (2) be welded in housing wall top or with the block (1) of housing welding on, the negative lug (22) of battery (2) is connected on the rivet (12) of block (1), offer a liquid injection hole (11) on the described block (1), a steel ball card is embedded in this liquid injection hole (11) and locates.
2. aluminum shell column shape lithium ion according to claim 1, it is characterized in that: described positive pole ear (21) adopts ultrasonic bonding or laser welding on housing wall top or block (1), and negative lug (22) adopts resistance welded or ultrasonic bonding or laser welding (12) on rivet.
3. aluminum shell column shape lithium ion according to claim 1 is characterized in that: described block (1) welds together by method for laser welding and housing.
4. aluminum shell column shape lithium ion battery according to claim 1 is characterized in that: the shell wall of described housing or shell bottom are provided with rule or irregular explosion-proof groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200602360U CN2824317Y (en) | 2005-06-27 | 2005-06-27 | Aluminium shell cylinder shaped lithium ion cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200602360U CN2824317Y (en) | 2005-06-27 | 2005-06-27 | Aluminium shell cylinder shaped lithium ion cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824317Y true CN2824317Y (en) | 2006-10-04 |
Family
ID=37033437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200602360U Expired - Fee Related CN2824317Y (en) | 2005-06-27 | 2005-06-27 | Aluminium shell cylinder shaped lithium ion cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824317Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009149607A1 (en) * | 2008-06-13 | 2009-12-17 | 深圳市比克电池有限公司 | Secondary battery |
| CN101752542A (en) * | 2009-12-28 | 2010-06-23 | 山东神工电池新科技有限公司 | Manufacturing method for avoiding problem of faulty soldering of tab and cover plate |
| CN102522518A (en) * | 2011-12-02 | 2012-06-27 | 苏州冠硕新能源有限公司 | Battery connecting assembly, producing method thereof and lithium battery |
| CN101434008B (en) * | 2007-11-12 | 2013-06-12 | 深圳市比克电池有限公司 | Spot welding device for battery cap and tab |
| CN106169540A (en) * | 2016-08-15 | 2016-11-30 | 天臣新能源研究南京有限公司 | A kind of aluminum shell column lithium ion battery |
| CN107946496A (en) * | 2017-12-14 | 2018-04-20 | 力神电池（苏州）有限公司 | A kind of new type lithium ion battery lid |
| WO2022170585A1 (en) * | 2021-02-10 | 2022-08-18 | Gotion, Inc. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
-
2005
- 2005-06-27 CN CNU2005200602360U patent/CN2824317Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434008B (en) * | 2007-11-12 | 2013-06-12 | 深圳市比克电池有限公司 | Spot welding device for battery cap and tab |
| WO2009149607A1 (en) * | 2008-06-13 | 2009-12-17 | 深圳市比克电池有限公司 | Secondary battery |
| US8609277B2 (en) | 2008-06-13 | 2013-12-17 | Bak Electronic (Shenzhen) Co., Ltd. | Secondary battery |
| CN101604737B (en) * | 2008-06-13 | 2014-03-12 | 深圳市比克电池有限公司 | Secondary battery |
| CN101752542A (en) * | 2009-12-28 | 2010-06-23 | 山东神工电池新科技有限公司 | Manufacturing method for avoiding problem of faulty soldering of tab and cover plate |
| CN102522518A (en) * | 2011-12-02 | 2012-06-27 | 苏州冠硕新能源有限公司 | Battery connecting assembly, producing method thereof and lithium battery |
| CN102522518B (en) * | 2011-12-02 | 2013-09-25 | 苏州冠硕新能源有限公司 | Battery connecting assembly, producing method thereof and lithium battery |
| CN106169540A (en) * | 2016-08-15 | 2016-11-30 | 天臣新能源研究南京有限公司 | A kind of aluminum shell column lithium ion battery |
| CN106169540B (en) * | 2016-08-15 | 2019-04-02 | 天臣新能源研究南京有限公司 | A kind of aluminum shell column lithium ion battery |
| CN107946496A (en) * | 2017-12-14 | 2018-04-20 | 力神电池（苏州）有限公司 | A kind of new type lithium ion battery lid |
| WO2022170585A1 (en) * | 2021-02-10 | 2022-08-18 | Gotion, Inc. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
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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: Ningde Amperex Technology Ltd. Assignor: Dongguan New Energy Source Electronic Sci-Tech Co., Ltd. Contract fulfillment period: 2008.12.2 to 2013.12.2 Contract record no.: 2009440001921 Denomination of utility model: Columniform lithium ion battery in aluminum case, and prepartion method Granted publication date: 20061004 License type: Exclusive license Record date: 20091229 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.2 TO 2013.12.2; CHANGE OF CONTRACT Name of requester: NINGDE AMPEREX TECHNOLOGY LTD. Effective date: 20091229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20140627 |
|
| EXPY | Termination of patent right or utility model |