CN104103778A - Cylindrical lithium-ion battery case with pressure controllable and safely released - Google Patents
Cylindrical lithium-ion battery case with pressure controllable and safely released Download PDFInfo
- Publication number
- CN104103778A CN104103778A CN201410362414.9A CN201410362414A CN104103778A CN 104103778 A CN104103778 A CN 104103778A CN 201410362414 A CN201410362414 A CN 201410362414A CN 104103778 A CN104103778 A CN 104103778A
- Authority
- CN
- China
- Prior art keywords
- ion battery
- cylindrical lithium
- battery case
- safety valve
- lithium ion
- 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 35
- 238000007373 indentation Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary 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
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a cylindrical lithium-ion battery case with pressure controllable and safely released. According to the invention, a safety valve is designed on the bottom surface of the cylindrical lithium-ion battery case, so that controllability of the cylindrical lithium-ion battery case is improved in safety failure, namely, double safety valves are added for a common cylindrical lithium-ion battery case, one safety valve is arranged on the battery cover at the positive electrode end of the cylindrical lithium-ion battery case, besides, another safety valve is arranged at the bottom of the battery case at the negative electrode end of the battery, therefore, pressure is released from the positive electrode end or the negative electrode end of the cylindrical lithium-ion battery during safety failure, thus, safety risks are reduced.
Description
Technical field
The present invention relates to cylindrical lithium ion battery field, more particularly, relate to a kind of cylindrical lithium ion battery shell of controllable pressure safe release.
Background technology
At present, in car industry, generally believe, to the year sales volume of Global Auto industry in 2015 will reach 200,000,000 scales.The direct pollution that 200000000 automobiles bring is unthinkable.Under this overall background, each car looks forward to the exploitation manufacture of electric automobile to reach fast traffic lane.Be mainly lithium ion battery and at present electric automobile uses, most representative is Tesla (CS) Koncern, Podebradska 186, Praha 9, Czechoslovakia of the U.S., and its each electric automobile design is used nearly 7,000 column type 18650 batteries.So the synthetic entirety of many battery pack is just had higher requirement to battery security, requires column type 18650 lithium ion batteries will have in design higher fail safe.Particularly aspect battery pressure controllable release.
Summary of the invention
Technical problem to be solved by this invention is, overcomes above-mentioned the deficiencies in the prior art, and a kind of cylindrical lithium ion battery shell that can ensure the controlled release of battery pressure security is provided.
The cylindrical lithium ion battery shell of controllable pressure safe release of the present invention, arranges safety valve in cylindrical lithium ion battery shell bottom surface.
Described safety valve is to be realized by the indentation forming in battery case bottom surface.The indentation of described formation safety valve is in enclosure interior or the outside of battery case bottom surface.
This cylindrical battery shell is stainless steel, steel nickel plating, aluminium or copper material.
The invention has the beneficial effects as follows:
1, because adopting the cylindrical lithium ion battery shell of bottom with relief valve design, use the cylindrical lithium ion battery of this cylindrical battery shell assembling to have dual safety valve, improve the fail safe of cylindrical lithium ion battery.
2, because adopting the cylindrical lithium ion battery shell of bottom with relief valve design, it is controlled using cylindrical lithium ion battery pressure release direction in the time occurring that safety lost efficacy of this cylindrical battery shell assembling, thus the fail safe while having ensured to use cylindrical lithium ion battery to form PACK in groups.
3,, because adopting the cylindrical lithium ion battery shell of bottom with relief valve design, use the cylindrical lithium ion battery of this cylindrical battery shell assembling to widen the application in HEV, EV and energy storage etc.
Brief description of the drawings
Fig. 1 is not exclusively circular safety valve;
Fig. 2 is circular safety valve;
Fig. 3 is special-shaped safety valve;
Fig. 4 is square safety valve;
Fig. 5 is battery container cutaway view (indentation is in enclosure interior);
Fig. 6 is battery container cutaway view (indentation is in outside).
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
The cylindrical lithium ion battery shell of controllable pressure safe release of the present invention, arranges safety valve in cylindrical lithium ion battery shell bottom surface.By at cylindrical lithium ion battery shell bottom design safety valve, can reach and improve the controllability of cylindrical lithium ion battery while losing efficacy safely, that is to say to common cylindrical lithium ion battery and added dual safety valve, except traditional cover to be provided with safety valve in cylindrical lithium ion battery positive end cell be provided with another safety valve in battery cathode end cell shell bottom again, thereby while making cylindrical lithium ion battery occur that safety lost efficacy from anode or negative pole two end pressure releases.
This cylindrical battery shell overall dimension and battery case wall thickness are not limit.Described safety valve is to be realized by the indentation forming in battery case bottom surface.The safety valve indentation depth is determined by pressure release value and valve shape and size.Safety valve pressure release value is between 1 MPa to 10 MPa.
This cylindrical battery shell bottom safety valve shape is arbitrarily, and it is not exclusively circular safety valve as signal: Fig. 1 that accompanying drawing has just been enumerated several shapes; Fig. 2 is circular safety valve; Fig. 3 is special-shaped safety valve; Fig. 4 is square safety valve.Taking the circular safety valve of Fig. 2 as example, the indentation that forms safety valve can be in the enclosure interior of battery case bottom surface as shown in Figure 5, also can be in the outside of battery case bottom surface as shown in Figure 6.
Claims (4)
1. a cylindrical lithium ion battery shell for controllable pressure safe release, is characterized in that, in cylindrical lithium ion battery shell bottom surface, safety valve is set.
2. the cylindrical lithium ion battery shell of controllable pressure safe release according to claim 1, is characterized in that, described safety valve is to be realized by the indentation forming in battery case bottom surface.
3. the cylindrical lithium ion battery shell of controllable pressure safe release according to claim 2, is characterized in that, the indentation of described formation safety valve is in enclosure interior or the outside of battery case bottom surface.
4. the cylindrical lithium ion battery shell of controllable pressure safe release according to claim 1, is characterized in that, this cylindrical battery shell is stainless steel, steel nickel plating, aluminium or copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362414.9A CN104103778A (en) | 2014-07-29 | 2014-07-29 | Cylindrical lithium-ion battery case with pressure controllable and safely released |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362414.9A CN104103778A (en) | 2014-07-29 | 2014-07-29 | Cylindrical lithium-ion battery case with pressure controllable and safely released |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104103778A true CN104103778A (en) | 2014-10-15 |
Family
ID=51671746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410362414.9A Pending CN104103778A (en) | 2014-07-29 | 2014-07-29 | Cylindrical lithium-ion battery case with pressure controllable and safely released |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104103778A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949927A (en) * | 2015-09-09 | 2018-04-20 | 株式会社村田制作所 | Battery, battery case, battery pack, electronic device, electric vehicle, power storage device, and power system |
| CN108695450A (en) * | 2018-06-29 | 2018-10-23 | 无锡金杨丸伊电子有限公司 | Anti-explosion battery shell |
| CN110720149A (en) * | 2017-06-15 | 2020-01-21 | 株式会社村田制作所 | Secondary battery, battery pack, electric vehicle, power storage system, electric power tool, and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133055Y (en) * | 1992-05-08 | 1993-05-12 | 机械电子工业部第十八研究所 | Explosion-proof device of battery |
| CN2824298Y (en) * | 2005-08-02 | 2006-10-04 | 周基平 | Battery explosion-proof cover plate and lithium ion cell with same |
| CN201340879Y (en) * | 2008-12-23 | 2009-11-04 | 天津力神电池股份有限公司 | Round lithium ion battery |
| CN201623223U (en) * | 2009-08-10 | 2010-11-03 | 浙江佳贝思绿色能源有限公司 | Lithium ion power battery with high sealing performance for double-ended leading-out pole |
| CN204088392U (en) * | 2014-07-29 | 2015-01-07 | 天津力神电池股份有限公司 | The cylindrical lithium ion battery shell of controllable pressure safe release |
-
2014
- 2014-07-29 CN CN201410362414.9A patent/CN104103778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133055Y (en) * | 1992-05-08 | 1993-05-12 | 机械电子工业部第十八研究所 | Explosion-proof device of battery |
| CN2824298Y (en) * | 2005-08-02 | 2006-10-04 | 周基平 | Battery explosion-proof cover plate and lithium ion cell with same |
| CN201340879Y (en) * | 2008-12-23 | 2009-11-04 | 天津力神电池股份有限公司 | Round lithium ion battery |
| CN201623223U (en) * | 2009-08-10 | 2010-11-03 | 浙江佳贝思绿色能源有限公司 | Lithium ion power battery with high sealing performance for double-ended leading-out pole |
| CN204088392U (en) * | 2014-07-29 | 2015-01-07 | 天津力神电池股份有限公司 | The cylindrical lithium ion battery shell of controllable pressure safe release |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949927A (en) * | 2015-09-09 | 2018-04-20 | 株式会社村田制作所 | Battery, battery case, battery pack, electronic device, electric vehicle, power storage device, and power system |
| CN110720149A (en) * | 2017-06-15 | 2020-01-21 | 株式会社村田制作所 | Secondary battery, battery pack, electric vehicle, power storage system, electric power tool, and electronic device |
| CN108695450A (en) * | 2018-06-29 | 2018-10-23 | 无锡金杨丸伊电子有限公司 | Anti-explosion battery shell |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |