CN203932223U - Anti-explosion lithium ion battery - Google Patents
Anti-explosion lithium ion battery Download PDFInfo
- Publication number
- CN203932223U CN203932223U CN201420308804.3U CN201420308804U CN203932223U CN 203932223 U CN203932223 U CN 203932223U CN 201420308804 U CN201420308804 U CN 201420308804U CN 203932223 U CN203932223 U CN 203932223U
- Authority
- CN
- China
- Prior art keywords
- battery
- tubular column
- open tubular
- lithium 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.)
- Expired - Fee Related
Links
Classifications
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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 utility model relates to battery technology field, relate in particular to anti-explosion lithium ion battery, include battery container, be arranged at the pole piece group in battery container, be poured in the battery cap that electrolyte in battery container and seal cover are located at battery container top, the center of pole piece group is formed with circular hole, in circular hole, be inserted with the open tubular column of hollow, the two ends up and down of open tubular column are cone-shaped structure, battery cap is positioned at the position that circular hole is corresponding and is provided with safety valve, the utility model utilizes open tubular column to stablize the basic structure of volume core, and the barrier film of nexine has been played to good fixation, prevent from rolling up core distortion, improve inside battery structural stability and anti-extrusion ability, improve battery security.
Description
technical field:
The utility model relates to battery technology field, relates in particular to anti-explosion lithium ion battery.
background technology:
Along with the development of modern society, the mobile devices such as video camera, notebook computer, portable DVD player and digital camera have had application more and more widely.Cylindrical lithium ion battery, as a kind of environmental protection battery, has the advantages such as high-energy-density, high working voltage and long life, and therefore the application in various mobile devices is more and more extensive.
Cylindrical lithium ion battery generally comprises the pole piece group with winding-structure, pole piece group by positive plate, negative plate and be interval in positive plate and negative plate between barrier film reel and to form, the pole piece with winding-structure is assembled in battery container and is filled with electrolyte, then by battery cap, seals.At present, cylindrical lithium ion battery is in manufacturing process, in coiling operation at volume core while completing, Juan Xin center can form a circular hole, can produce certain impact to the basic structure of the barrier film of innermost layer and battery core, be unfavorable for the structure of battery to fix, the volume core of battery is easily out of shape, the stability of the internal structure of battery and anti-extrusion ability, reduced the fail safe of battery.
utility model content:
The purpose of this utility model is exactly to provide a kind of anti-explosion lithium ion battery that improves inside battery structural stability and anti-extrusion ability, improves battery security for the deficiency of prior art existence.
To achieve these goals, the technical solution adopted in the utility model is:
Anti-explosion lithium ion battery, include battery container, be arranged at pole piece group in battery container, be poured in the battery cap that electrolyte in battery container and seal cover are located at battery container top, the center of pole piece group is formed with circular hole, in circular hole, be inserted with the open tubular column of hollow, the two ends up and down of open tubular column are cone-shaped structure, and battery cap is positioned at the position that circular hole is corresponding and is provided with safety valve.
Described battery cap include be positioned at open tubular column top orifice plate, by solder joint, be electrically connected at burst disk on orifice plate, be placed in top cover in burst disk and the O-ring seal of coated burst disk and orifice plate, orifice plate, burst disk and top cover stack gradually, and O-ring seal is sealed by battery container compacting.
Described open tubular column is stainless steel.
The top and bottom of described open tubular column all offer breach.
Described battery container bottom is filled with colloid substance layer.
The utility model beneficial effect is: the utility model includes battery container, be arranged at the pole piece group in battery container, be poured in the battery cap that electrolyte in battery container and seal cover are located at battery container top, the center of pole piece group is formed with circular hole, in circular hole, be inserted with the open tubular column of hollow, the two ends up and down of open tubular column are cone-shaped structure, battery cap is positioned at the position that circular hole is corresponding and is provided with safety valve, the utility model utilizes open tubular column to stablize the basic structure of volume core, and the barrier film of nexine has been played to good fixation, prevent from rolling up core distortion, improve inside battery structural stability and anti-extrusion ability, improve battery security.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
embodiment:
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail, as shown in Figure 1, the utility model includes battery container 1, be arranged at pole piece group 2 in battery container 1, be poured in the battery cap 5 that electrolyte in battery container 1 and seal cover are located at battery container 1 top, the center of pole piece group 2 is formed with circular hole 3, in circular hole 3, be inserted with the open tubular column 4 of hollow, the two ends up and down of open tubular column 4 are cone-shaped structure, and the position that battery cap 5 is positioned at circular hole 3 correspondences is provided with safety valve 6.The utility model utilizes open tubular column 4 to stablize the basic structure of volume core, and the barrier film of nexine has been played to good fixation, prevents from rolling up core distortion, improves inside battery structural stability and anti-extrusion ability, improves battery security.
Battery cap 5 include be positioned at open tubular column 4 tops orifice plate 51, by solder joint, be electrically connected at burst disk 52 on orifice plate 51, be placed in top cover 53 in burst disk 52 and the O-ring seal 54 of coated burst disk 52 and orifice plate 51, orifice plate 51, burst disk 52 and top cover 53 stack gradually, O-ring seal 54 is sealed by battery container 1 compacting, when the gas pressure value of inside battery surpasses scheduled pressure value, gas can be torn in burst disk 52 and by burst disk 52 by the stomatal action of orifice plate 51, to discharge in time the gas in battery, prevent that battery is on fire or explode.
Open tubular column 4 is stainless steel, and intensity is high, more can improve inside battery structural stability and anti-extrusion ability.The top and bottom of open tubular column 4 all offer breach 41, when open tubular column 4 fits in the orifice plate 51 of battery cap 5 or the bottom of battery container 1, between the orifice plate 51 of breach 41 and battery cap 5 or the bottom of battery container 1, still there is gap, this gap can serve as the passage that gas is discharged, thereby the gas passing away that prevents central tube is blocked, being convenient to gas discharges fast, therefore can reduce the generation of the safety problems such as burning and blast, significantly improve the security performance of cylindrical lithium ion battery.Battery container 1 bottom is filled with colloid substance layer 7; by inject colloid substance layer 7 in battery container 1 bottom, fix the pole piece group 2 being contained in battery container 1 and effectively protect pole piece group 2 negative terminals at the solder joint of battery container 1 bottom; make the solder joint can the breakage because of the vibrations of pole piece group 2; thereby effectively improved anti-vibration and the shock resistance of cylindrical lithium ion battery, and then made the reliability of battery and be able to obvious raising useful life.
Certainly, the above is only preferred embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (5)
1. anti-explosion lithium ion battery, include battery container (1), be arranged at pole piece group (2) in battery container (1), be poured in the battery cap (5) that electrolyte in battery container (1) and seal cover are located at battery container (1) top, it is characterized in that: the center of described pole piece group (2) is formed with circular hole (3), in circular hole (3), be inserted with the open tubular column (4) of hollow, the two ends up and down of open tubular column (4) are cone-shaped structure, and battery cap (5) is positioned at the position that circular hole (3) is corresponding and is provided with safety valve (6).
2. anti-explosion lithium ion battery according to claim 1, it is characterized in that: described battery cap (5) include be positioned at open tubular column (4) top orifice plate (51), by solder joint, be electrically connected at burst disk (52) on orifice plate (51), be placed in top cover (53) in burst disk (52) and the O-ring seal (54) of coated burst disk (52) and orifice plate (51), orifice plate (51), burst disk (52) and top cover (53) stack gradually, and O-ring seal (54) is sealed by battery container (1) compacting.
3. anti-explosion lithium ion battery according to claim 1, is characterized in that: described open tubular column (4) is stainless steel.
4. anti-explosion lithium ion battery according to claim 1, is characterized in that: the top and bottom of described open tubular column (4) all offer breach (41).
5. according to the anti-explosion lithium ion battery described in claim 1 ~ 4 any one, it is characterized in that: described battery container (1) bottom is filled with colloid substance layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308804.3U CN203932223U (en) | 2014-06-11 | 2014-06-11 | Anti-explosion lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308804.3U CN203932223U (en) | 2014-06-11 | 2014-06-11 | Anti-explosion lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932223U true CN203932223U (en) | 2014-11-05 |
Family
ID=51827987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308804.3U Expired - Fee Related CN203932223U (en) | 2014-06-11 | 2014-06-11 | Anti-explosion lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041584A (en) * | 2017-09-07 | 2018-12-18 | 深圳市大疆创新科技有限公司 | Lithium metal battery |
-
2014
- 2014-06-11 CN CN201420308804.3U patent/CN203932223U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041584A (en) * | 2017-09-07 | 2018-12-18 | 深圳市大疆创新科技有限公司 | Lithium metal battery |
| WO2019047107A1 (en) * | 2017-09-07 | 2019-03-14 | 深圳市大疆创新科技有限公司 | Lithium metal battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160524 Granted publication date: 20141105 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170607 Granted publication date: 20141105 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200607 Granted publication date: 20141105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170611 |