CN203644828U - Lithium battery steel shell with safety discharge groove - Google Patents
Lithium battery steel shell with safety discharge groove Download PDFInfo
- Publication number
- CN203644828U CN203644828U CN201320768612.6U CN201320768612U CN203644828U CN 203644828 U CN203644828 U CN 203644828U CN 201320768612 U CN201320768612 U CN 201320768612U CN 203644828 U CN203644828 U CN 203644828U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- base plate
- steel shell
- battery steel
- line
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 15
- 239000010959 steel Substances 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a lithium battery steel shell with a safety discharge groove. The lithium battery steel shell comprises a barrel and a soleplate, wherein the soleplate is welded at the bottom of the barrel, the soleplate is provided with the discharge groove, and the depth of the discharge groove is 85 to 90 percent of the thickness of the soleplate. When the internal pressure is excessively large due to abuse of a lithium battery, the internal pressure in the lithium battery can be released, so that the safety problem caused by the abuse of the lithium battery can be reduced, and the problems such as battery badness, failure and safety caused by a battery safety device can be effectively solved.
Description
Technical field
The utility model belongs to disposable lithium-battery technical field, is specifically related to a kind of lithium battery steel shell with safety relief groove.
Background technology
The security performance of a jumbo lithium-thionyl chloride battery is poor, and especially, under abuse condition, lithium battery interior pressure can sharply increase, easily cause lithium battery burning, blast, even also can cause personal injury, so lithium battery needs safety relief, to guarantee the safe handling of lithium battery.There are problems in the safety relief device of current battery, for example, is designed to the weak link of glass envelope, has relieving pressure inaccuracy, also has the problem that causes electric liquid to reveal simultaneously; And carve weak link at the box hat upside of battery, also exist and take more internal cell volume, cause battery can utilize the minimizing in space, cause the reduction of the capacity of battery, simultaneously, because the general employing of the box hat of lithium battery at present is the housing that cylindrical shell and base plate separate, the thickness of housing is 0.5mm, and it is yielding that side is carved weak link back casing like this.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of lithium battery steel shell with safety relief groove, in the time that lithium battery abuse causes its internal pressure excessive, can release out the pressure of lithium battery interior, reduce lithium battery because of the safety issue that causes of abuse, can effectively solve lithium battery because the battery that battery safety device causes is bad, inefficacy and security problems.
The utility model solves the technical scheme that its technical problem adopts: the lithium battery steel shell with safety relief groove, it comprises: cylindrical shell and base plate, described base plate is welded on the bottom of described cylindrical shell, on described base plate, offer discharging slot, the degree of depth of described discharging slot is base plate thickness 85%～90%.
By technique scheme, described discharging slot comprises hinders line three quarters, hinders line described quarter and is intersected in joint by bottom edge to base plate middle part.
By technique scheme, described discharging slot comprises hinders line main quarter and hinders line a point quarter, and described two ends of hindering line main quarter are carved and hindered line to two points of bottom edge shuntings respectively.
By technique scheme, the thickness of described base plate is 1.5～2.5mm.
By technique scheme, the thickness of described base plate is 2mm.
By technique scheme, the degree of depth of described discharging slot is 1.8mm.
The utility model, there is following beneficial effect: in the time that lithium battery abuse causes its internal pressure excessive, can release out the pressure of lithium battery interior of the utility model, reduce lithium battery because of the safety issue that causes of abuse, can effectively solve lithium battery because the battery that battery safety device causes is bad, inefficacy and security problems.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of an embodiment of discharging slot;
Fig. 3 is the structural representation of another embodiment of discharging slot.
Wherein, 1-cylindrical shell, 2-base plate, 3-are carved and are hindered line, 4-joint, 5-and hinder line, 6-main quarter and divide to carve and hinder line.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in FIG. 1 to 3, there is the lithium battery steel shell of safety relief groove, comprise: cylindrical shell 1 and base plate 2, base plate 2 is welded on the bottom of cylindrical shell 1, and the thickness of base plate is 1.5～2.5mm, is preferably 2mm, on base plate 2, offer discharging slot, the degree of depth of discharging slot is 85%～90% of base plate 2 thickness, and in the present embodiment, the thickness of base plate is got 2mm, the degree of depth of discharging slot is 90% of base plate thickness, and the degree of depth of discharging slot is 1.8mm.In an embodiment of the present utility model, discharging slot comprises hinders line 3 three quarters, and hinder line 3 and be intersected in joint 4 by base plate 2 edges to base plate 2 middle parts quarter.In another embodiment of the present utility model, discharging slot comprises hinders line 5 main quarter and divides to carve and hinder line 6, hinders the two ends of line 5 main quarter and carves and hinder line 6 to two points of base plate 2 edges shuntings respectively.
In the utility model first being processed, first design and carve shape and the thickness of hindering groove, utilize machining center or special quarter to hinder equipment and hinder mould quarter, on lithium battery steel shell base plate, manufacture weak link, on base plate, manufacture the weaker place of definite shape, base plate is quenched simultaneously, increase cover plate toughness.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (6)
1. have a lithium battery steel shell for safety relief groove, comprise cylindrical shell and base plate, it is characterized in that: described base plate is welded on the bottom of described cylindrical shell, on described base plate, offer discharging slot, the degree of depth of described discharging slot is base plate thickness 85%～90%.
2. the lithium battery steel shell with safety relief groove according to claim 1, is characterized in that: described discharging slot comprises hinders line three quarters, hinders line described quarter and is intersected in joint by bottom edge to base plate middle part.
3. the lithium battery steel shell with safety relief groove according to claim 1, is characterized in that: described discharging slot comprises hinders line main quarter and hinder line a point quarter, and described two ends of hindering line main quarter are carved and hindered line to two points of bottom edge shuntings respectively.
4. the lithium battery steel shell with safety relief groove according to claim 1, is characterized in that: the thickness of described base plate is 1.5～2.5mm.
5. the lithium battery steel shell with safety relief groove according to claim 4, is characterized in that: the thickness of described base plate is 2mm.
6. the lithium battery steel shell with safety relief groove according to claim 1, is characterized in that: the degree of depth of described discharging slot is 1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768612.6U CN203644828U (en) | 2013-11-29 | 2013-11-29 | Lithium battery steel shell with safety discharge groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768612.6U CN203644828U (en) | 2013-11-29 | 2013-11-29 | Lithium battery steel shell with safety discharge groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644828U true CN203644828U (en) | 2014-06-11 |
Family
ID=50876052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320768612.6U Expired - Fee Related CN203644828U (en) | 2013-11-29 | 2013-11-29 | Lithium battery steel shell with safety discharge groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644828U (en) |
-
2013
- 2013-11-29 CN CN201320768612.6U patent/CN203644828U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191028 Address after: 430056 Hubei city of Wuhan province Hannan Xing three road Wuhan Zhongyuan Changjiang science and Technology Park Patentee after: WUHAN ZHONGYUAN CHANGJIANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: The 430056 Hubei city of Wuhan province Hannan economic and Technological Development Zone Changjiang science and Technology Park Patentee before: WUHAN VOLTEC ENERGY SOURCES CO.,LTD. |
|
| 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: 20140611 |