CN207199806U - A kind of heat shield for slowing down the propagation of battery thermal runaway - Google Patents
A kind of heat shield for slowing down the propagation of battery thermal runaway Download PDFInfo
- Publication number
- CN207199806U CN207199806U CN201721093599.3U CN201721093599U CN207199806U CN 207199806 U CN207199806 U CN 207199806U CN 201721093599 U CN201721093599 U CN 201721093599U CN 207199806 U CN207199806 U CN 207199806U
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- CN
- China
- Prior art keywords
- mica sheet
- battery
- heat shield
- thermal runaway
- glue
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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
Abstract
It the utility model is related to a kind of heat shield for slowing down the propagation of battery thermal runaway.The heat shield is placed between adjacent two battery, and the heat shield is layer structure, including the second mica sheet and it is placed in the first mica sheet and the 3rd mica sheet of the second mica sheet both sides, the profile of first mica sheet, the second mica sheet and the 3rd mica sheet matches and is bonded into a single integrated structure, first mica sheet and the 3rd mica sheet return font structure for middle hollow out, and the second mica sheet is rectangular configuration.As shown from the above technical solution, heat shield of the present utility model is made up of multilayer mica sheet of different shapes, has insulating properties, thermal insulation and crushing resistance.During charging, heat shield can allow battery to have certain bulging space in the case where pressure between ensureing battery is constant；In the case where battery modules internal cause overcharges or the reason such as heavy-current discharge causes battery high temperature or even thermal runaway occur, heat shield can also effectively retarding heat be toward propagating at adjacent cell, so as to delay the further expansion of thermal runaway situation.
Description
Technical field
It the utility model is related to electrokinetic cell field, and in particular to a kind of heat shield for slowing down the propagation of battery thermal runaway.
Background technology
In recent years, as countries and regions government puts into effect a series of supports and the related political affairs for promoting Development of Electric Vehicles in succession
Plan, and people change to the thought of electric automobile, and electric automobile industry starts intimately.But with the subsidy amount of money year by year
Decline, meet that the vehicle standard of subsidy gradually steps up, government is to the requirement of electrokinetic cell higher and higher energy density, ternary battery
Due to the advantage of self-energy density, start slowly to occupy the higher and higher market share.
The relatively low ferric phosphate lithium cell of relative energy density, although having very big advantage in terms of ternary battery energy density,
But ferric phosphate lithium cell safety is but can not show a candle in terms of security.The chemical moiety activity of ternary battery is very high, high temperature or
Overcharge down and thermal runaway occurs, and then battery bag is likely to occur the risk that on fire, blast etc. seriously endangers personal safety.
Ternary battery capacity of today is all very big, and battery both sides middle part has slight bulging during charging, if between battery
Without bulging space, the risk that explosion-proof valve is pushed up out or module side plate weld seam is torn is likely to result in.
Utility model content
The purpose of this utility model is to provide a kind of heat shield for slowing down the propagation of battery thermal runaway, and the heat shield can ensure
There is certain bulging space between battery, and thermal runaway propagation can be slowed down, improve the security of battery pack.
To achieve the above object, the utility model employs following technical scheme：The heat shield be placed in adjacent two battery it
Between, and the heat shield is layer structure, including the second mica sheet and the first mica sheet and for being placed in the second mica sheet both sides
Three mica sheets, the profile of the first mica sheet, the second mica sheet and the 3rd mica sheet match and are bonded into a single integrated structure, the first cloud
Master slice and the 3rd mica sheet return font structure for middle hollow out, and the second mica sheet is rectangular configuration.
The both sides of first mica sheet are respectively equipped with the first glue-line and the second glue-line, and two of the 3rd mica sheet are respectively equipped with
Three glue-lines and the 4th glue-line, the first mica sheet, the second mica sheet and the 3rd mica sheet pass through the second glue-line and the 3rd glue-line respectively
Bonding is integral, and the first glue-line and the 4th glue-line are for Nian Jie with the medial surface of adjacent two battery.
First mica sheet, the thickness of the 3rd mica sheet are more than the thickness of the second mica sheet.
First mica sheet, the second mica sheet, the appearance and size of the 3rd mica sheet are less than the size of battery side.
As shown from the above technical solution, the utility model battery in groups when be used to separate adjacent two battery, heat shield
It is made up of multilayer mica sheet of different shapes, there is excellent insulating properties, thermal insulation and crushing resistance.In charging, in heat shield
Hollow out mica in the case where pressure between ensureing battery is constant battery can be allowed to have certain bulging space；Meanwhile in battery
Module internal cause overcharges or the reason such as heavy-current discharge causes battery to occur under high temperature or even the extreme case of thermal runaway, and heat shield is also
Effectively it can be propagated toward at adjacent cell retarding heat, so as to delay the further expansion of thermal runaway situation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is use state figure of the present utility model.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of heat shield for slowing down the propagation of battery thermal runaway as shown in Figure 1 and Figure 2, the heat shield are placed in adjacent two battery
Between, and the heat shield is layer structure, including the second mica sheet 2 and the first mica sheet 1 for being placed in the both sides of the second mica sheet 2
With the 3rd mica sheet 3, the profile of the first mica sheet 1, the second mica sheet 2 and the 3rd mica sheet 3 matches and is bonded and integrally ties
Structure, the first mica sheet 1 and the 3rd mica sheet 3 return font structure for middle hollow out, and the second mica sheet 2 is rectangular configuration.I.e.
Two mica sheets 2 are the mica sheet of rectangular configuration, and the first mica sheet 1 and the 3rd mica sheet 3 are back the mica sheet of font structure.It is preferred that
, the first mica sheet 1, the shape of 3 middle hollow out of the 3rd mica sheet are similar to its profile, i.e., the profile of the first mica sheet 1 is square
Shape, then the shape of 1 middle hollow out of the first mica sheet also should be rectangle or close to rectangle, to adapt to shape of the battery under bulging state
Shape.
Further, the both sides of the first mica sheet 1 are respectively equipped with the first glue-line 4 and the second glue-line 5, the 3rd mica sheet 3
Two are respectively equipped with the 3rd glue-line 6 and the 4th glue-line 7, and the first mica sheet 1, the second mica sheet 2 and the 3rd mica sheet 3 pass through respectively
Second glue-line 5 and the 3rd glue-line 6 are bonded integrally, and the first glue-line 4 and the 4th glue-line 7 are used to glue with the medial surface of adjacent two battery
Connect.That is the both sides of the first mica sheet 1 and the 3rd mica sheet 3 are respectively equipped with glue-line, the both sides of the second mica sheet 2 not gum.
Further, the first mica sheet 1, the thickness of the 3rd mica sheet 3 are more than the thickness of the second mica sheet 2, to ensure
In limited space, give the spaces of some bulging of battery as far as possible more.
Further, the first mica sheet 1, the second mica sheet 2, the appearance and size of the 3rd mica sheet 3 are less than battery side
Size, i.e. the first mica sheet 1, the second mica sheet 2, the appearance and size of the 3rd mica sheet 3 are more smaller than the border of battery side, so
Other assemblings of battery modules are not interfered with.
Application method of the present utility model is as follows：
As shown in Fig. 2 battery in groups when, a heat shield, i.e. battery 10 and battery are placed between two adjacent batteries
Heat shield 40 is respectively equipped between 20, between battery 20 and battery 30.By taking battery 10 and battery 20 as an example, the both sides of heat shield 40
The glue-line medial surface phase adhesion with battery 10 and battery 20, and the appearance and size of heat shield 40 can not surpass battery 10 and battery respectively
20 side boundaries.
Working principle and beneficial effect of the present utility model is as follows：
Heat shield of the present utility model is made up of multilayer mica sheet of different shapes, mica have excellent insulating properties, absolutely
Hot and crushing resistance.For the battery of high energy ratio, in charging, battery both sides occur slight bulging, first in heat shield
In the case that the design of the hollow out of mica and the 3rd mica can ensure that pressure is constant between battery, it is allowed to which battery has certain bulging empty
Between, so as to avoid battery because causing the fracture of battery side plate welding seams, or even the risk that battery anti-explosion valve is pushed up out without bulging space；
In addition, being overcharged in battery modules internal cause or the reason such as heavy-current discharge causes Individual cells the extreme of high temperature or even thermal runaway occur
In the case of, heat shield can effectively retarding heat be toward propagation at adjacent battery, so as to delay the further of thermal runaway situation
Expand, give passengers inside the car more escape times.
Above example is only that preferred embodiment of the present utility model is described, not to of the present utility model
Scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are new to this practicality
The various modifications and improvement that the technical scheme of type is made, the protection domain of the utility model claims book determination all should be fallen into
It is interior.
Claims (4)
- A kind of 1. heat shield for slowing down the propagation of battery thermal runaway, it is characterised in that：The heat shield is placed between adjacent two battery, and The heat shield is layer structure, including the second mica sheet（2）And it is placed in the second mica sheet（2）First mica sheet of both sides（1） With the 3rd mica sheet（3）, the first mica sheet（1）, the second mica sheet（2）And the 3rd mica sheet（3）Profile match and be bonded It is into a single integrated structure, the first mica sheet（1）And the 3rd mica sheet（3）Font structure, the second mica sheet are returned for middle hollow out（2）For Rectangular configuration.
- 2. the heat shield according to claim 1 for slowing down the propagation of battery thermal runaway, it is characterised in that：First mica sheet（1） Both sides be respectively equipped with the first glue-line（4）And second glue-line（5）, the 3rd mica sheet（3）Two be respectively equipped with the 3rd glue-line（6） And the 4th glue-line（7）, the first mica sheet（1）, the second mica sheet（2）And the 3rd mica sheet（3）Pass through the second glue-line respectively（5）And 3rd glue-line（6）Bonding is integral, the first glue-line（4）And the 4th glue-line（7）For Nian Jie with the medial surface of adjacent two battery.
- 3. the heat shield according to claim 1 for slowing down the propagation of battery thermal runaway, it is characterised in that：First mica sheet（1）、 3rd mica sheet（3）Thickness be more than the second mica sheet（2）Thickness.
- 4. the heat shield according to claim 1 for slowing down the propagation of battery thermal runaway, it is characterised in that：First mica sheet（1）、 Second mica sheet（2）, the 3rd mica sheet（3）Appearance and size be less than battery side size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721093599.3U CN207199806U (en) | 2017-08-29 | 2017-08-29 | A kind of heat shield for slowing down the propagation of battery thermal runaway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721093599.3U CN207199806U (en) | 2017-08-29 | 2017-08-29 | A kind of heat shield for slowing down the propagation of battery thermal runaway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207199806U true CN207199806U (en) | 2018-04-06 |
Family
ID=61795956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721093599.3U Active CN207199806U (en) | 2017-08-29 | 2017-08-29 | A kind of heat shield for slowing down the propagation of battery thermal runaway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207199806U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109888151A (en) * | 2019-02-01 | 2019-06-14 | 贵州梅岭电源有限公司 | A kind of hot partition method of closed type hot battery |
| US20200259144A1 (en) * | 2019-02-08 | 2020-08-13 | Dupont Safety & Construction, Inc. | Fire-retardant insulation suitable for battery cells |
| CN112447974A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112448077A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112448079A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112448078A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| US11569546B2 (en) | 2019-09-05 | 2023-01-31 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11728541B2 (en) | 2019-09-05 | 2023-08-15 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11764438B2 (en) | 2019-09-05 | 2023-09-19 | Samsung Sdi Co., Ltd. | Energy storage module having extinguisher sheet |
| US11764430B2 (en) | 2019-09-05 | 2023-09-19 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11771935B2 (en) | 2019-09-05 | 2023-10-03 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11799167B2 (en) | 2019-09-05 | 2023-10-24 | Samsung Sdi Co., Ltd. | Energy storage module having extinguisher sheet |
| JP7463282B2 (en) | 2018-09-11 | 2024-04-08 | 三洋電機株式会社 | Power Supplies |
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2017
- 2017-08-29 CN CN201721093599.3U patent/CN207199806U/en active Active
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7463282B2 (en) | 2018-09-11 | 2024-04-08 | 三洋電機株式会社 | Power Supplies |
| CN109888151A (en) * | 2019-02-01 | 2019-06-14 | 贵州梅岭电源有限公司 | A kind of hot partition method of closed type hot battery |
| US20200259144A1 (en) * | 2019-02-08 | 2020-08-13 | Dupont Safety & Construction, Inc. | Fire-retardant insulation suitable for battery cells |
| US11962025B2 (en) * | 2019-02-08 | 2024-04-16 | Dupont Safety & Construction, Inc. | Fire-retardant insulation suitable for battery cells |
| JP7414834B2 (en) | 2019-02-08 | 2024-01-16 | デュポン セイフティー アンド コンストラクション インコーポレイテッド | Flame retardant insulator suitable for battery cells |
| CN112448078B (en) * | 2019-09-05 | 2023-03-14 | 三星Sdi株式会社 | Energy storage module |
| US11728541B2 (en) | 2019-09-05 | 2023-08-15 | Samsung Sdi Co., Ltd. | Energy storage module |
| EP3790102A1 (en) * | 2019-09-05 | 2021-03-10 | Samsung SDI Co., Ltd. | Energy storage module |
| EP3793000A1 (en) * | 2019-09-05 | 2021-03-17 | Samsung SDI Co., Ltd. | Energy storage module |
| EP3800727A1 (en) * | 2019-09-05 | 2021-04-07 | Samsung SDI Co., Ltd. | Energy storage module |
| US11145933B2 (en) | 2019-09-05 | 2021-10-12 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11569546B2 (en) | 2019-09-05 | 2023-01-31 | Samsung Sdi Co., Ltd. | Energy storage module |
| CN112448078A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112448079B (en) * | 2019-09-05 | 2023-06-06 | 三星Sdi株式会社 | Energy storage module |
| EP3790101A1 (en) * | 2019-09-05 | 2021-03-10 | Samsung SDI Co., Ltd. | Energy storage module |
| US11735788B2 (en) | 2019-09-05 | 2023-08-22 | Samsung Sdi Co., Ltd. | Energy storage module including insulation spacers and an extinguisher sheet |
| US11735795B2 (en) | 2019-09-05 | 2023-08-22 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11764438B2 (en) | 2019-09-05 | 2023-09-19 | Samsung Sdi Co., Ltd. | Energy storage module having extinguisher sheet |
| US11764430B2 (en) | 2019-09-05 | 2023-09-19 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11771935B2 (en) | 2019-09-05 | 2023-10-03 | Samsung Sdi Co., Ltd. | Energy storage module |
| US11799167B2 (en) | 2019-09-05 | 2023-10-24 | Samsung Sdi Co., Ltd. | Energy storage module having extinguisher sheet |
| US11848461B2 (en) | 2019-09-05 | 2023-12-19 | Samsung Sdi Co., Ltd. | Energy storage module |
| CN112448079A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112448077A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
| CN112447974A (en) * | 2019-09-05 | 2021-03-05 | 三星Sdi株式会社 | Energy storage module |
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