CN205944199U - Battery - Google Patents
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- Publication number
- CN205944199U CN205944199U CN201620872436.4U CN201620872436U CN205944199U CN 205944199 U CN205944199 U CN 205944199U CN 201620872436 U CN201620872436 U CN 201620872436U CN 205944199 U CN205944199 U CN 205944199U
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- Prior art keywords
- retardant layer
- battery
- flame
- shutter
- battery according
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model belongs to the technical field of battery, in particular to battery, including the casing, install in electric core in the casing, install in top cap, setting on the casing are in the casing and/or relief valve and setting on the top cap are in the casing and/or on the top cap and the safety device relief valve fixed coordination, safety device include with shielding plate, lateral wall and airflow channel structure that the relief valve is relative, the shielding plate and/or be provided with fire -retardant layer on the lateral wall. Produce strong endothermic reaction through fire -retardant layer, prevent the burning when solid mars granule was with the atmospheric gas contact when the inside gas of battery broke through explosion -proof valve, can reduce solid mars granule simultaneously with the inside flue gas of battery (like flammable flue gas) contact and cause burning and the possibility of exploding.
Description
Technical field
The utility model belongs to cell art, particularly to a kind of battery.
Background technology
Increasingly extensive with application in the field such as electric automobile and electrical network energy storage for the battery, the security performance of battery is also got over
More to be taken seriously.The cause of cell safety problem is typically thermal runaway.
When battery occurs thermal runaway, the thermal discharge of the active material in battery can reach every gram of hundreds of joule, moment
Heat production can cause violent redox reaction between active material and electrolyte, produces substantial amounts of imflammable gas, these gas
Body makes inner pressure of battery drastically raise, thus breaking through explosion-proof valve to form quick gas flowing, the imflammable gas of ejection and air
Contact and mix；Meanwhile, during the ejection of inside battery imflammable gas, the solid particle of a large amount of high temperature can be taken out of, this
A little solid particles form bright Mars and light the mixture of air and imflammable gas, thus leading to burn, exploding.
Chinese patent application publication number CN104319360 A discloses a kind of battery, and this battery is arranged on battery cap
With the safety device of explosion-proof valve secure fit, and safety device include the shutter relative with explosion-proof valve, side wall and
Airflow channel structure, airflow channel structure is formed on the wall of described side.Although shutter can have to solid Mars particle
Effect stops, and airflow channel structure can change gas flow, but it cannot stop solid fire when explosion-proof valve occurs rupture
Star particle and can right property gas burning, and flue gas high velocity vertical spray after the safety that mixes on a large scale with air and lead to ask
Topic.
Utility model content
The purpose of this utility model is：For the deficiencies in the prior art, and provide a kind of battery, this battery is provided with resistance
Combustion layer, produces the strong endothermic reaction by flame-retardant layer, absorbs the partial heat that burning is released, and reduces solid Mars particle and can
So temperature of property gas, stops spreading, thus being not in Ignition Phenomena after preventing battery core thermal runaway of burning.
For achieving the above object, the utility model adopts the following technical scheme that：
A kind of battery, the battery core including housing, being installed in described housing, the top cover being installed on described housing, setting
In the relief valve on described housing and/or described top cover and be arranged on described housing and/or described top cover and relief valve
The safety device of secure fit, it is gentle that described safety device includes the shutter relative with described relief valve, side wall
It is provided with flame-retardant layer on circulation road structure, described shutter and/or described side wall.
As one kind improvement of battery described in the utility model, described flame-retardant layer is arranged at the upper surface of described shutter
Or lower surface.
As one kind improvement of battery described in the utility model, described flame-retardant layer is arranged at the upper surface of described shutter
And lower surface.
As one kind improvement of battery described in the utility model, described shutter has through hole, described flame-retardant layer sets
It is placed in the inwall of described through hole.
As one kind improvement of battery described in the utility model, the area of described through hole is less than 1mm2.
As one kind improvement of battery described in the utility model, described flame-retardant layer sealing is arranged in described through hole.
As one kind improvement of battery described in the utility model, described shutter has blind hole, described flame-retardant layer sets
It is placed in described blind hole.
As one kind improvement of battery described in the utility model, the thickness of described flame-retardant layer is 1 ~ 20mm.
As one kind improvement of battery described in the utility model, the thickness of described flame-retardant layer is 3 ~ 8mm.
As one kind improvement of battery described in the utility model, described side wall is connected to the end of described shutter, and
Described side wall is set to square plate structure or two square rod structures.
The beneficial effects of the utility model are：The utility model includes housing, the battery core being installed in described housing, peace
The top cover being loaded on described housing, the relief valve being arranged on described housing and/or described top cover and be arranged on described housing
And/or the safety device with relief valve secure fit on described top cover, described safety device includes letting out with described
It is provided with flame-retardant layer on the relative shutter of pressure valve, side wall and airflow channel structure, described shutter and/or described side wall.Logical
Cross flame-retardant layer and produce the strong endothermic reaction, prevent inside battery gas from breaking through solid Mars particle and atmospheric gas during explosion-proof valve
Burning during contact, can reduce solid Mars particle and inside battery flue gas simultaneously（As combustible fumes）Contact and cause burning and
The possibility of blast.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is one of structural representation of safety device in the utility model.
Fig. 3 is two of the structural representation of safety device in the utility model.
Fig. 4 is three of the structural representation of safety device in the utility model.
Fig. 5 is four of the structural representation of safety device in the utility model.
Fig. 6 is five of the structural representation of safety device in the utility model.
Fig. 7 is six of the structural representation of safety device in the utility model.
Fig. 8 is seven of the structural representation of safety device in the utility model.
Wherein, 1- housing, 2- top cover, 3- relief valve, 4- safety device, 41- shutter, 42- side wall, 43- air-flow
Channel design, 5- battery core, 6- flame-retardant layer, 7- through hole.
Specific embodiment
With reference to specific embodiment and Figure of description, the utility model is described in further detail, but this
The embodiment of utility model is not limited to this.
Specific embodiment 1
As illustrated in fig. 1 and 2, a kind of battery, including housing 1, the battery core 5 that is installed in housing 1, is installed on housing 1
Top cover 2, the relief valve 3 being arranged on housing 1 and/or top cover 2 and be arranged on housing 1 and/or top cover 2 with relief valve 3
The safety device 4 of secure fit, safety device 4 includes the shutter 41 relative with relief valve 3, side wall 42 and air-flow
Channel design 43, side wall 42 is connected to the end of shutter 41, and side wall 42 is set to square plate structure, airflow channel structure 43
Can be arranged on side plate in the form of hatch frame, shutter 41 and/or side wall 42 are provided with flame-retardant layer 6, present embodiment
Flame-retardant layer 6 be arranged at the lower surface of shutter 41, that is, shutter 41, towards the contrary side of the top cover 2 of battery, is so arranged
The burning that can prevent inside battery gas from breaking through when solid Mars particle is contacted with atmospheric gas during explosion-proof valve, can reduce simultaneously
Solid Mars particle and inside battery flue gas（As combustible fumes）Contact and cause burning and the possibility of blast.
In actual applications, in flame-retardant layer 6, fire retardant is selected from hydroxide, Quadrafos, melamine, boric acid and sorb
At least one in alcohol.In addition, the thickness of flame-retardant layer 6 is generally 1 ~ 20mm.Flame-retardant layer thickness is excessive, can take battery core 5 and top
Lid 2 between space, impact battery volume energy density, flame-retardant layer too thin it is impossible to play fire-retardant effect.Present embodiment
The thickness of flame-retardant layer 6 is set to 8mm.
Specific embodiment 2
As shown in figs. 1 and 3, from unlike specific embodiment 1：The flame-retardant layer 6 of present embodiment is arranged at shutter
41 upper surface, can play, with specific embodiment 1, flame-retardant layer 6 is arranged on the same effect of lower surface；In addition, side wall 42
It is set to two square rod structures（Referring to Fig. 3）, and airflow channel structure 43 is between two square rod structures.
The thickness of the flame-retardant layer 6 of present embodiment is 3mm.
Other structures are identical with specific embodiment 1, repeat no more here.
Specific embodiment 3
As shown in figs. 1 and 4, from unlike specific embodiment 1：The flame-retardant layer 6 of present embodiment is arranged at shutter
41 upper and lower surface, flame-retardant layer 6 is arranged on the upper and lower surface of shutter 41 by this embodiment simultaneously, compares
In specific embodiment 1 and 2, the flame retardant effect of present embodiment more preferably, substantially increases the security of battery.
The thickness of the flame-retardant layer 6 of present embodiment is 5mm.
Other structures are identical with specific embodiment 1, repeat no more here.
Specific embodiment 4
As described in figures 1 and 5, from unlike specific embodiment 1：On the shutter 41 of present embodiment, there is through hole 7,
Flame-retardant layer 6 is arranged at the inwall of through hole 7.The quantity of through hole 7 is set to multiple, and multiple through holes 7 are uniformly distributed on shutter 41,
The area of single through hole 7 is general to be required to be less than 1mm2, because the through hole 7 on shutter 41 can only allow gas to pass through, do not allow
High-temperature solid particle passes through, and so can effectively increase gas channel area, and present embodiment is further on through hole 7 inwall
Setting flame-retardant layer 6, can substantially reduce can combustion when so property gas breaks through that during explosion-proof valve, solid Mars particle is contacted with atmospheric gas
Burn.
Other structures are identical with specific embodiment 1, repeat no more here.
Specific embodiment 5
As shown in figs. 1 and 6, from unlike specific embodiment 4：Flame-retardant layer 6 sealing of present embodiment is arranged at logical
In hole 7, because flame-retardant layer 6 is arranged in through hole 7 and seals, and flame-retardant layer 6 is usually sparse layer structure（Gas can lead to
Cross flame-retardant layer）So that present embodiment can play cushioning effect to the discharge of imflammable gas, reduce its exhaust velocity, with
When can also play insulating effect for the gas of shutter 41 both sides, prevent from so to break through the climing of explosion-proof valve after-combustion by property gas
Prolong.
Other structures are identical with specific embodiment 4, repeat no more here.
Specific embodiment 6
From unlike specific embodiment 4：On the shutter of present embodiment, there is blind hole（Not shown）, flame-retardant layer sets
It is placed in blind hole, flame-retardant layer can fill up blind hole and can not also fill up blind hole, set according to process requirements.
Other structures are identical with specific embodiment 4, repeat no more here.
It should be noted that：Flame-retardant layer can also be arranged on the wall of side, can adopt the various sides of specific embodiment 1 ~ 6
Formula is arranged on the form of one side, two sides, through hole and the blind hole being such as arranged on side wall on the wall of side, is not especially limited here.
In addition, the utility model can also be by the way of specific embodiment 1 and specific embodiment 5 combine（Ginseng
See Fig. 7）, that is, flame-retardant layer can be simultaneously located in the lower surface and through hole of shutter, and flame-retardant layer blow-by is in through hole；Can also
By the way of specific embodiment 1 and specific embodiment 6 combine（Referring to Fig. 8）, that is, flame-retardant layer can be simultaneously located at screening
In the lower surface and through hole of baffle plate, and flame-retardant layer is sealed in through hole.
The announcement of book and teaching according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is changed.Therefore, the utility model is not limited to above-mentioned specific embodiment, every this area skill
The done any conspicuously improved, replacement on the basis of the utility model of art personnel or modification belong to this practicality newly
The protection domain of type.Although additionally, employing some specific terms in this specification, these terms are intended merely to conveniently say
Bright, any restriction is not constituted to the utility model.
Claims (10)
1. a kind of battery, the battery core including housing, being installed in described housing, the top cover being installed on described housing, is arranged on
Relief valve on described housing and/or described top cover and be arranged on solid with relief valve on described housing and/or described top cover
The safety device of fixed cooperation, described safety device includes the shutter relative with described relief valve, side wall and air-flow
Channel design it is characterised in that：It is provided with flame-retardant layer on described shutter and/or described side wall.
2. battery according to claim 1 it is characterised in that：Described flame-retardant layer be arranged at described shutter upper surface or
Lower surface.
3. battery according to claim 1 it is characterised in that：Described flame-retardant layer be arranged at described shutter upper surface and
Lower surface.
4. battery according to claim 1 it is characterised in that：On described shutter, there is through hole, described flame-retardant layer setting
Inwall in described through hole.
5. battery according to claim 4 it is characterised in that：The area of described through hole is less than 1mm2.
6. battery according to claim 4 it is characterised in that：Described flame-retardant layer sealing is arranged in described through hole.
7. battery according to claim 1 it is characterised in that：On described shutter, there is blind hole, described flame-retardant layer setting
In described blind hole.
8. the battery according to any one of claim 1 ~ 7 it is characterised in that：The thickness of described flame-retardant layer is 1 ~ 20mm.
9. battery according to claim 8 it is characterised in that：The thickness of described flame-retardant layer is 3 ~ 8mm.
10. battery according to claim 1 it is characterised in that：Described side wall is connected to the end of described shutter, and institute
State side wall and be set to square plate structure or two square rod structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620872436.4U CN205944199U (en) | 2016-08-12 | 2016-08-12 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620872436.4U CN205944199U (en) | 2016-08-12 | 2016-08-12 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944199U true CN205944199U (en) | 2017-02-08 |
Family
ID=57919864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620872436.4U Active CN205944199U (en) | 2016-08-12 | 2016-08-12 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205944199U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598326A (en) * | 2018-06-11 | 2018-09-28 | 超威电源有限公司 | a kind of lithium ion battery and battery pack |
| CN112993484A (en) * | 2021-04-30 | 2021-06-18 | 蜂巢能源科技有限公司 | Fire filtering structure for battery pack |
| CN114200307A (en) * | 2021-12-09 | 2022-03-18 | 长春工程学院 | Monitoring and analyzing equipment for simulating thermal runaway experiment of energy storage battery |
| WO2024001482A1 (en) * | 2022-06-29 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
-
2016
- 2016-08-12 CN CN201620872436.4U patent/CN205944199U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598326A (en) * | 2018-06-11 | 2018-09-28 | 超威电源有限公司 | a kind of lithium ion battery and battery pack |
| CN108598326B (en) * | 2018-06-11 | 2023-11-28 | 超威电源集团有限公司 | Lithium ion battery and battery pack |
| CN112993484A (en) * | 2021-04-30 | 2021-06-18 | 蜂巢能源科技有限公司 | Fire filtering structure for battery pack |
| CN114200307A (en) * | 2021-12-09 | 2022-03-18 | 长春工程学院 | Monitoring and analyzing equipment for simulating thermal runaway experiment of energy storage battery |
| WO2024001482A1 (en) * | 2022-06-29 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |