CN101673847B - Lithium ion battery and method for manufacturing same - Google Patents
Lithium ion battery and method for manufacturing same Download PDFInfo
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- CN101673847B CN101673847B CN200810141896XA CN200810141896A CN101673847B CN 101673847 B CN101673847 B CN 101673847B CN 200810141896X A CN200810141896X A CN 200810141896XA CN 200810141896 A CN200810141896 A CN 200810141896A CN 101673847 B CN101673847 B CN 101673847B
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- housing
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- ion battery
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- reference column
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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
Abstract
The invention provides a lithium ion battery. The lithium ion battery comprises an electric core, a first shell and a second shell, wherein the electric core is packaged in a cavity formed by the first and the second cavities; the periphery of the second shell is provided with a plurality of positioning columns respectively; the first shell is provided with holes matched with the positioning columns; and the positioning columns are melted by heating to realize the package of the battery. The technical scheme of the invention has the advantages that: made of plastics, the first shell and the second shell can be formed by plastic injection integrally, so that the working procedure is reduced, the technological difficulty is lowered, and the cost is saved; and because the hot melting by a hot melting machine replaces the welding by ultrasonic wave, the device and the method have the advantages of good quality of the hot melting bonding surface, low-priced equipment, small floor space, easy machine adjustment, less dependence on the mould accuracy, less deformation of the finished product, stable size of the finished product and the like.
Description
Technical field
The invention relates to a kind of lithium ion battery and the method for making this lithium ion battery.
Background technology
The battery that is used for electronic multimedia products such as digital camera, mobile phone and personal digital assistant device; Based on the professional production capacity division of labor and flexible the collocation with all demands of money different model; All be contained in in the housing and winding a connector is arranged; Thisly only must this coupling be plugged on the butt joint coupling of reservation when being assembled on the multimedia idea product, can provide this electronic multimedia product required power supply.
The way that has now is, adopts a glue frame, adds one or two metal first housing, at the periphery of first housing, a plurality of sheet metals is set, and on the glue frame, reserves a plurality of slots, and sheet metal cooperates with slot, through ultrasonic wave it is welded together.In this technology,, increased cost owing to adopted metal first housing; Simultaneously, owing to adopt ultrasonic bonding, further improved cost.
In order to practice thrift cost, there is the people that crown cap has been done further improvement, the two ends of two crown caps are provided with the glue frame respectively, and are provided with buckle structure at glue frame position, encapsulate through buckle.In order to reach better sealing effectiveness, the crown cap dual-side also is provided with protuberance, is used to seal dual-side.But such processing, the metal that has still used part is as first housing, and cost still exists; Simultaneously, use combining of glue frame and crown cap, increased difficulty of processing; Use buckle structure simultaneously, wasted battery space to a certain extent; Simultaneously, use the buckle structure sealing to also have poorly sealed problem.
Summary of the invention
In order to improve sealing property, reduce process complexity and save cost, the present invention proposes a kind of new lithium ion battery.
First technical scheme of the present invention is:
A kind of lithium ion battery; Comprise electric core, first housing, second housing; Said electric core is encapsulated in the cavity of said first housing and said second housing composition; The said second housing periphery is respectively equipped with a plurality of reference columns, and said first housing is provided with the hole of matching with said reference column, and realizes the encapsulation of battery through the said reference column of hot melt.
In order to improve sealing property, reduce process complexity and save cost, second technical scheme of the present invention:
A kind of manufacturing approach of lithium ion battery comprises the steps:
Make first housing and second housing, the said second housing periphery is respectively equipped with a plurality of reference columns, and said first housing is provided with the hole of matching with said reference column,
Make electric core, said electric core be encapsulated in the internal cavities of said first housing and said second housing composition, and matched with said reference column in said hole,
The described reference column of hot melt, described hole, coolant seal are filled in fusion.
Adopt technical scheme beneficial effect of the present invention to be, first housing and second housing all adopt plastics to process, can single injection-molded, reduce operation, and reduced technology difficulty, practice thrift cost; Advantages such as simultaneously, use fuse machine hot melt replaces ultrasonic bonding, and hot melt faying face quality is better, and equipment is cheap, and floor space is little, and the accent machine is simple, reduces the dependence to mould and die accuracy, and is stressed little during production, and the finished product distortion is less, and finished size is more stable.
Description of drawings:
Fig. 1 is a battery container structure specific embodiment sketch map of the present invention.
Fig. 2 is the sketch map that concerns of battery container structure specific embodiment reference column of the present invention and stepped hole.
Fig. 3 to Fig. 5 is a battery container structure specific embodiment fusion involution process sketch map of the present invention.
In the accompanying drawing: 1-first housing, 2-second housing, 3-electric core, 4-hot melt head, 11-stepped hole, 12-step surface, 21-reference column, 22-hot-melt object.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present invention is elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Lithium ion battery as shown in Figure 1, as to introduce in the present embodiment comprises first housing, 1, the second housing 2, electric core 3.First housing 1 and second housing 2 all can be made up of one flat plate and the wall of upwards growing all around, and the dislocation cooperation through two housing walls forms the cavity that can hold lithium ion battery cell.In the present embodiment, first housing 1 is specially and only comprises one flat plate, and the middle part of the wall of upwards growing around second housing 2 upwards grows a plurality of reference columns, on the wall therein, also is provided with the hole that supplies external circuits to use; Around first housing 1, be provided with the hole 11 that reference column 21 cooperates on a plurality of and said second housing 2, hole 11 is designed to step-like.First housing 1 and second housing 2 all adopt plastic cement material to process.
With electric core 3 by correct towards placing on second housing 2, and cover first housing 1, and the reference column 21 on second housing 2 matched with stepped hole 11 on first housing 1.The electricity core is known in the industry lithium ion battery cell, generally comprises shell, cover plate, electrode group; Electrolyte, electrode connecting band, current protector; Protection circuit plate, and some not dry sleeve or insulating papers that are used to insulate, electrode group be by positive/negative plate and membrane coil around or cascade.Shell and cover plate are formed the internal cavities of hold electrodes group and electrolyte jointly.The electrode connecting band is drawn two electrodes from the rivet on cover plate and the cover plate; One of them electrode is connected to the protection circuit plate through circuit brake; Another electrode is directly connected to the protection circuit plate; And the position that between the position that possibly cause short circuit such as electrode connecting band and cover plate, between electrode connecting band and the insurance road plate, is not electrically connected is provided with not dry sleeve or insulation board, to increase the yield of battery.Metal terminal on the protection circuit plate is connected with external circuit through the hole on the wall.
As shown in Figure 2, stepped hole is by a big hole, and the step surface 12 between small sircle hole and two circular holes constitutes.Make that stepped hole great circle internal diameter is a, the reference column external diameter is b, and the stepped hole height is x; The height of the outstanding step surface of reference column is y; In order to make in the follow-up melting process, fuse the hot-melt object that gets off and the reference column of not fusion is not higher than the stepped hole height from reference column, there is y≤x (a/b)
2
To involution process shown in Figure 5, as shown in Figure 3, the hot melt head 4 of fuse machine is preferably made spill like Fig. 3, and after guaranteeing hot melt, battery keeps good surface appearance and sealing property.As shown in Figure 4, the hot melt head 4 through fuse machine is heated to 270-280 ℃ with reference column 21, and the position that causes reference column 21 to contact with hot melt head 4 begins fusion.Hot-melt object 22 as shown in Figure 5, that reference column 21 fuses, the cavity of entering stepped hole 11 under the effect of gravity, cooled and solidified is accomplished good sealing effectiveness then.For the degree of fusion, the upper surface that is no more than first housing 2 with the height of reference column 21 is as the criterion.
Should explain that this instance is the description to preferred mode of the present invention, and the non-limiting scope of the invention.The equivalent transformation that on this basis shape of the present invention, structure is carried out should be regarded as within protection scope of the present invention.
Claims (9)
1. a lithium ion battery is characterized in that, comprises electric core; First housing, second housing is encapsulated in said electric core in the cavity of said first housing and said second housing composition; The said second housing periphery is respectively equipped with a plurality of reference columns; Said first housing is provided with the hole of matching with said reference column, and passes through the encapsulation that the said reference column of hot melt is realized battery, and said first housing and said second housing all adopt plastic cement to process.
2. lithium ion battery according to claim 1 is characterized in that, the hole on said first housing is by a big hole, the stepped hole that the step surface between small sircle hole and two circular holes constitutes.
3. lithium ion battery according to claim 1 is characterized in that, the hot melt head that is used for hot melt is a spill, and behind the hot melt, said reference column height and hot-melt object height must not surpass the upper surface of said first housing.
4. lithium ion battery according to claim 1 is characterized in that, is provided with the upwards wall of growth around said second housing, and said reference column begins upwards growth from the middle part of said wall.
5. the manufacturing approach of a lithium ion battery comprises the steps:
Make first housing and second housing, the said second housing periphery is respectively equipped with a plurality of reference columns, and said first housing is provided with the hole of matching with said reference column, and said first housing and said second housing all adopt plastic cement to process,
Make electric core, said electric core be encapsulated in the internal cavities of said first housing and said second housing composition, and matched with said reference column in said hole,
The described reference column of hot melt, described hole, coolant seal are filled in fusion.
6. lithium ion battery manufacturing approach according to claim 5 is characterized in that, the hole on said first housing is by a big hole, the stepped hole that the step surface between small sircle hole and two circular holes constitutes.
7. lithium ion battery manufacturing approach according to claim 5 is characterized in that, makes that stepped hole great circle internal diameter is a, and the reference column external diameter is b, and the stepped hole height is x, and the height of the outstanding step surface of reference column is y, has y≤x (a/b)
2
8. lithium ion battery manufacturing approach according to claim 5 is characterized in that, the hot melt head that is used for hot melt is a spill, and behind the hot melt, said reference column height and hot-melt object height must not surpass the upper surface of said first housing.
9. lithium ion battery manufacturing approach according to claim 5 is characterized in that, is provided with the upwards wall of growth around said second housing, and said reference column begins upwards growth from the middle part of said wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141896XA CN101673847B (en) | 2008-09-09 | 2008-09-09 | Lithium ion battery and method for manufacturing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810141896XA CN101673847B (en) | 2008-09-09 | 2008-09-09 | Lithium ion battery and method for manufacturing same |
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| CN101673847A CN101673847A (en) | 2010-03-17 |
| CN101673847B true CN101673847B (en) | 2012-05-02 |
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| CN200810141896XA Active CN101673847B (en) | 2008-09-09 | 2008-09-09 | Lithium ion battery and method for manufacturing same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977339A (en) * | 2010-10-13 | 2011-02-16 | 瑞声声学科技(深圳)有限公司 | Fixing method of magnet frame and basin bracket |
| KR101293917B1 (en) * | 2011-09-07 | 2013-08-08 | 현대자동차주식회사 | apparatus for preventing deformation of plastic battery pack case of electric vehicle |
| CN105513502B (en) * | 2014-09-22 | 2018-12-21 | 无锡极目科技有限公司 | A kind of manufacturing method of the compound glass substrate of monochrome epitaxy LED display module |
| DE112019006897T5 (en) * | 2019-02-22 | 2021-11-11 | Furukawa Automotive Systems Inc. | OUTER COVER FOR ELECTRICAL CABLES AND HIDDEN WIRING HARNESS |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000200585A (en) * | 1999-01-04 | 2000-07-18 | Mitsubishi Electric Corp | Battery package |
| CN1639886A (en) * | 2002-03-06 | 2005-07-13 | 索尼株式会社 | Battery device |
| CN101096127A (en) * | 2006-06-30 | 2008-01-02 | 江苏双登集团有限公司 | New sealing method of acid-proof flame-proof battery casing |
| CN101189746A (en) * | 2005-03-17 | 2008-05-28 | 日本电气株式会社 | Film enclosed electric device and production method therefor |
-
2008
- 2008-09-09 CN CN200810141896XA patent/CN101673847B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000200585A (en) * | 1999-01-04 | 2000-07-18 | Mitsubishi Electric Corp | Battery package |
| CN1639886A (en) * | 2002-03-06 | 2005-07-13 | 索尼株式会社 | Battery device |
| CN101189746A (en) * | 2005-03-17 | 2008-05-28 | 日本电气株式会社 | Film enclosed electric device and production method therefor |
| CN101096127A (en) * | 2006-06-30 | 2008-01-02 | 江苏双登集团有限公司 | New sealing method of acid-proof flame-proof battery casing |
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| CN101673847A (en) | 2010-03-17 |
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Effective date of registration: 20170718 Address after: 2, building 523000, building A1, Po Industrial Park, 80 Phoenix Road, Fenghuang Gang village, Fenghuang Town, Dongguan, Guangdong, Tangxia, China Patentee after: Iridium new energy technology (Dongguan) Co., Ltd. Address before: Longgang District of Shenzhen City, Guangdong province 518118 Ping Wang Ping Road No. 3001 Patentee before: Biyadi Co., Ltd. |
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| CB03 | Change of inventor or designer information | ||
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Inventor after: Yan Xingfei Inventor before: Xia Liangming Inventor before: Cai Xiaoli Inventor before: Hao Yong |
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Effective date of registration: 20180930 Address after: 215500 Jiangsu Suzhou Changshou City Mei Li Zhen Hualian road overseas Chinese town E Industrial Park Patentee after: Suzhou de Ling Xun Power Technology Co., Ltd. Address before: 523000 2 building, A1, 80 Po Huang industrial estate, Fenghuang Gang Road, Fenghuang village, Tangxia Town, Dongguan, Guangdong. Patentee before: Iridium new energy technology (Dongguan) Co., Ltd. |