CN100394630C - Lithium ion battery casing, its manufacturing method and battery - Google Patents
Lithium ion battery casing, its manufacturing method and battery Download PDFInfo
- Publication number
- CN100394630C CN100394630C CNB2005100207243A CN200510020724A CN100394630C CN 100394630 C CN100394630 C CN 100394630C CN B2005100207243 A CNB2005100207243 A CN B2005100207243A CN 200510020724 A CN200510020724 A CN 200510020724A CN 100394630 C CN100394630 C CN 100394630C
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- Prior art keywords
- battery
- lithium ion
- insulating barrier
- ion battery
- container
- 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.)
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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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000010835 comparative analysis Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention discloses a lithium ion battery shell which comprises a battery shell and a cover plate, wherein an insulating layer is arranged on the inner wall of the battery shell. Furthermore, the present invention also discloses the manufacturing method of the battery shell and a lithium ion battery which adopts the battery shell. The present invention has the beneficial technical effects that because the inner wall of the battery shell is provided with the insulating layer, the occurrence rate of short circuit of the battery at the part of the inner wall can be effectively reduced, and the safety as well as the yield of the battery can be improved.
Description
[technical field]
The present invention relates to the high-energy battery technology, the battery that is specifically related to the manufacture method of lithium ion battery shell, this battery case and uses this battery case.
[background technology]
Lithium ion battery is a kind of high performance secondary cell, have operating voltage height, volume and energy density height, the life-span is long, self-discharge rate is low, memory-less effect and be of value to advantages such as environment, be widely used in mobile communication equipment, notebook computer, take the photograph videocorder, field such as PDA (personal digital assistant), digital camera, electric tool and torpedo, guided missile.Countries in the world all illustrate great interest and enthusiasm to the application table of lithium rechargeable battery at aspects such as communication field, portable type electronic product, electric motor car and space flight and aviation, and have carried out continuous exploration and improvement at the performance and the manufacturing process of lithium rechargeable battery.But in present battery production technology, seem details for some, the problem that in fact but affects cell integrated rate of finished products and quality to a great extent but still has to be solved.For example, because the problem of potential safety hazard is scrapped or produced to the battery that the short circuit between electric core and the battery case causes.Cause the reason of short circuit between electric core and the battery case to have a lot, the insulation gummed paper that for example electric core two ends collector edge exposure, electric core skin are used to paste coiling pole piece end comes off or breakage etc., all causes the short trouble of battery easily.In these inducements, after the battery battery core after particularly reeling is gone into shell, the easiest short circuit that causes the finished product battery of the conducting terminal of drawing in the pole piece, because the bad control of pole piece conducting terminal length, too short being not easy is welded on the cover plate, and pulls apart easily; Long then crooked and contact at the battery container opening part easily with battery container, cause battery short circuit, thereby cause battery to be scrapped, also can cause the explosion phenomenon generation in the time of more serious, jeopardize people's life security.
[summary of the invention]
The objective of the invention is to overcome above-mentioned technological deficiency, provide a kind of and can reduce the battery short circuit rate, improve the battery security and the lithium ion battery shell of rate of finished products, the manufacture method and the lithium ion battery of this battery case.
In order to achieve the above object, the technical solution used in the present invention is: a kind of lithium ion battery shell, comprise battery container and cover plate, and described battery container inwall is provided with insulating barrier.
Preferably, described battery container is provided with insulating barrier at least on the desired location of inwall, and described desired location is meant after battery battery core is packed battery container into, the position that conducting terminal of drawing in the battery battery core and inner walls are nearest.
Further preferably, described insulating barrier is near the opening part setting of battery container, and the distance of insulating barrier outer rim and battery container opening part is not more than 1 millimeter.
More preferably, described insulating barrier is high-temperature insulation coating or high-temperature insulation film.
The preferred high-temperature insulation function of glue coating of described high-temperature insulation coating, the preferred high temperature gummed tape of described high-temperature insulation film.
The present invention also provides the manufacture method of above-mentioned lithium ion battery shell, comprise the step of making battery container, also be included in the step that insulating barrier is set on the desired location of battery container inwall, promptly, at this position spraying or coating high-temperature insulation coating or pasted with high temperature-resistant insulation film, described desired location is meant after battery battery core is packed battery container into, the position that conducting terminal of drawing in the battery battery core and inner walls are nearest.
The preferred high-temperature insulation glue of the high-temperature insulation coating that uses in the said method, the preferred high temperature gummed tape of high-temperature insulation film.
The present invention also provides the lithium ion battery with above-mentioned lithium ion battery shell.
Adopt technique scheme, in conjunction with the following embodiment that will describe in detail, beneficial technical effects of the present invention is: 1) at the battery container inwall insulating barrier is set, effectively reduces the probability that the position battery is short-circuited is being set, can improve the fail safe and the rate of finished products of battery.2) owing on the nearest position of conducting terminal and inner walls, be provided with insulating barrier, solve this and caused the maximum inducement of finished product battery short circuit, even make that battery battery core conduction exit is long, can not cause short circuit because touching inner walls yet, design and technologic difficulty had both been reduced, avoid the generation of battery short circuit again as far as possible, guaranteed the fail safe and the rate of finished products of battery, also reduced the overall manufacturing cost indirectly; And it is owing to generally all be near the shell nozzle place, insulating barrier to be set, therefore easy to operate, realize can not reducing the production efficiency of battery easily.3) go into the mode of shell and encapsulation according to battery battery core in the existing technology, the position of adopting the present invention that insulating barrier preferably is set has quite high accuracy and fail safe, has avoided unnecessary waste of material.4) selection has the insulating barrier of high-temperature resistant result, make and carrying out conducting end when welding, insulating barrier can not be destroyed and the method for losing paint spay-coating that insulating effect provides or film applying is made the battery case of tape insulation layer, and technology is simple, easy to operate, increase product cost hardly.
Also the present invention is described in further detail in conjunction with the accompanying drawings below by embodiment.
[description of drawings]
Fig. 1 is a kind of lithium ion battery shell and battery battery core loading procedure schematic diagram.
Fig. 2 is another kind of lithium ion battery shell schematic diagram.
Fig. 3 is a kind of lithium ion battery schematic diagram.
[embodiment]
Embodiment one, a kind of lithium ion battery shell in conjunction with Fig. 1, comprise battery container 1 and as the high temperature gummed tape 2 of insulating barrier.High temperature gummed tape 2 adopts the method for pasting to be arranged on the position of battery container inwall near battery container 1 opening part, and high temperature gummed tape 2 and battery container otch 3 distances are 1 millimeter.
When making lithium ion battery, battery battery core 4 is put into battery container 1.Note making battery battery core 4 corresponding, because the sweep of conducting terminal 5 is and the nearest part of battery container 1 inwall with the welding flexure plane and the insulating barrier 2 on the battery container 1 of the conducting terminal 5 of cover plate 6 connections.Another conducting terminal 8 and the welding of cover plate opposite side are drawn as positive pole.The position mutual insulating that conducting terminal 5 and conducting terminal 8 on the cover board weld.
Comparative analysis:
Adopt the battery case among the embodiment one, making model according to common process is the finished product lithium ion battery (outward appearance as shown in Figure 3) of 053048A1, as 1 group, adopt the conventional batteries shell again, make the finished product lithium ion battery of same model according to same common process, as 2 groups, its short circuit ratio of comparative analysis is as shown in table 1.
Table 1
Embodiment two, another kind of lithium ion battery shell, in conjunction with Fig. 2, its structure and embodiment one are basic identical, just also are provided with insulating barrier being provided with on the relative inner walls in the position of insulating barrier with embodiment one.Its insulating barrier 7 is to adopt the method that applies high-temperature insulation glue in this position to form.
Comparative analysis:
Adopt the battery case among the embodiment two, making model according to common process is the finished product lithium ion battery of 053048A1, and as 3 groups, 2 groups acquisition methods is the same, and its short circuit ratio of comparative analysis is as shown in table 2.
Table 2
Adopt the lithium ion battery of battery case of the present invention as can be seen by table 1 and table 2, its short circuit ratio significantly reduces, and illustrates that battery case of the present invention has the good raising battery rate of finished products and the effect of fail safe.Can also find, (comprise place that conducting terminal and inner walls are nearest and the place that may contact) on the inwall two sides insulating barrier, better effects if all are set with inner walls.Certainly in actual production; can also enlarge the coverage of insulating barrier as required; even can be with entire cell shell inwall; except that the conductive welding spots of necessity, all carry out insulation processing; include but not limited to that these change at interior all distortion and remodeling; only otherwise break away from basic structure of the present invention, all should be included within the scope of protection of present invention.
Claims (7)
1. lithium ion battery shell, comprise battery container and cover plate, it is characterized in that: described battery container is provided with insulating barrier on the desired location of inwall, described desired location is meant after battery battery core is packed battery container into, the position that conducting terminal of drawing in the battery battery core and inner walls are nearest.
2. lithium ion battery shell according to claim 1 is characterized in that: described insulating barrier is near the opening part setting of battery container, and the distance of insulating barrier outer rim and battery container opening part is not more than 1 millimeter.
3. lithium ion battery shell according to claim 1 and 2 is characterized in that: described insulating barrier is a high-temperature insulation coating.
4. lithium ion battery shell according to claim 1 and 2 is characterized in that: described insulating barrier is the high-temperature insulation film.
5. lithium ion battery shell according to claim 4 is characterized in that: described high-temperature insulation film is a high temperature gummed tape.
6. lithium ion battery with the described lithium ion battery shell of above-mentioned any one claim.
7. the manufacture method of a lithium ion battery shell, comprise the step of making battery container, it is characterized in that: also be included in the step that insulating barrier is set on the desired location of battery container inwall, that is, spraying or coating high-temperature insulation coating or pasted with high temperature-resistant insulation film are on the desired location of battery inwall; Described desired location is meant after battery battery core is packed battery container into, the position that conducting terminal of drawing in the battery battery core and inner walls are nearest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100207243A CN100394630C (en) | 2005-04-13 | 2005-04-13 | Lithium ion battery casing, its manufacturing method and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100207243A CN100394630C (en) | 2005-04-13 | 2005-04-13 | Lithium ion battery casing, its manufacturing method and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1770495A CN1770495A (en) | 2006-05-10 |
| CN100394630C true CN100394630C (en) | 2008-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100207243A Active CN100394630C (en) | 2005-04-13 | 2005-04-13 | Lithium ion battery casing, its manufacturing method and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100394630C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853926A (en) * | 2010-06-22 | 2010-10-06 | 深圳市豪鹏科技有限公司 | Battery steel shell and insulating method and battery thereof |
| KR101596269B1 (en) | 2013-02-13 | 2016-02-23 | 주식회사 엘지화학 | Battery Cell of Novel Structure |
| CN103325987B (en) * | 2013-05-30 | 2015-08-26 | 广东天劲新能源科技股份有限公司 | Anti-acupuncture lithium battery |
| CN107248552A (en) * | 2017-07-27 | 2017-10-13 | 陈海燕 | A kind of battery-shell surface processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06236750A (en) * | 1993-02-09 | 1994-08-23 | Japan Storage Battery Co Ltd | Square battery |
| CN1271183A (en) * | 1999-04-19 | 2000-10-25 | 日本电池株式会社 | Cell sealed in resin film cell case |
| JP2000311719A (en) * | 1999-04-16 | 2000-11-07 | Samsung Sdi Co Ltd | Lithium polymer battery and its manufacture |
| JP2001167744A (en) * | 1999-09-30 | 2001-06-22 | Canon Inc | Lithium secondary battery and method for fabricating the same |
| US20030129487A1 (en) * | 1998-09-30 | 2003-07-10 | Takefumi Inoue | Battery |
| CN1455962A (en) * | 2001-01-18 | 2003-11-12 | 大日本印刷株式会社 | Battery device and lead wire film |
| CN1523700A (en) * | 2003-02-17 | 2004-08-25 | 比亚迪股份有限公司 | Non-aqueous electrolyte lithium secondary battery |
-
2005
- 2005-04-13 CN CNB2005100207243A patent/CN100394630C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06236750A (en) * | 1993-02-09 | 1994-08-23 | Japan Storage Battery Co Ltd | Square battery |
| US20030129487A1 (en) * | 1998-09-30 | 2003-07-10 | Takefumi Inoue | Battery |
| JP2000311719A (en) * | 1999-04-16 | 2000-11-07 | Samsung Sdi Co Ltd | Lithium polymer battery and its manufacture |
| CN1271183A (en) * | 1999-04-19 | 2000-10-25 | 日本电池株式会社 | Cell sealed in resin film cell case |
| JP2001167744A (en) * | 1999-09-30 | 2001-06-22 | Canon Inc | Lithium secondary battery and method for fabricating the same |
| CN1455962A (en) * | 2001-01-18 | 2003-11-12 | 大日本印刷株式会社 | Battery device and lead wire film |
| CN1523700A (en) * | 2003-02-17 | 2004-08-25 | 比亚迪股份有限公司 | Non-aqueous electrolyte lithium secondary battery |
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| Publication number | Publication date |
|---|---|
| CN1770495A (en) | 2006-05-10 |
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Effective date of registration: 20160921 Address after: An Zhen Zhongmu County 451470 Henan city of Zhengzhou Province Liu Zheng Qiao Village Patentee after: ZHENGZHOU BAK BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
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Effective date of registration: 20191022 Granted publication date: 20080611 |
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Date of cancellation: 20221022 Granted publication date: 20080611 |
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