CN206340590U - A kind of lithium ion battery casing with heat blocking function - Google Patents
A kind of lithium ion battery casing with heat blocking function Download PDFInfo
- Publication number
- CN206340590U CN206340590U CN201621385313.4U CN201621385313U CN206340590U CN 206340590 U CN206340590 U CN 206340590U CN 201621385313 U CN201621385313 U CN 201621385313U CN 206340590 U CN206340590 U CN 206340590U
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- China
- Prior art keywords
- heat
- battery
- outer case
- casing
- lithium ion
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- 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.)
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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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of lithium ion battery casing with heat blocking function, it includes casing, and casing is made up of internal box with outer case, and heat-sink shell is provided between internal box and outer case, relief valve is provided with the housing of outer case, provided with heat absorption material addition mouth on the housing of outer case.The utility model is to improve the security performance of lithium ionic cell module and system to a certain extent, by the way that Battery case is processed into double-decker, inside filling heat absorption material, when thermal runaway occurs for box house battery, battery is absorbed by inside stuffing matter and discharges heat, so as to reach the purpose for the security performance for improving lithium ionic cell module and system.
Description
Technical field
The utility model is related to lithium ion battery casing, particularly a kind of to have heat blocking work(suitable for lithium ion battery
The lithium ion battery casing of energy.
Background technology
Lithium ion battery has many advantages, such as lightweight, small volume, energy density height, long service life, green, environmental protection
And it is widely used in the series of small mobile electronic product such as mobile phone, portable computer.The total energy that such product has in itself
Amount is relatively low, and the risk of thermal runaway is relatively low, and destructive little therefore common shell just can meet requirement.
In recent years, lithium ion battery is obtained quickly in fields such as new-energy automobile, communication base station, wind light generation energy-storage systems
Promote, the field requires that battery system has higher working battery, larger capacity, the energy that battery system has in itself
Greatly.Although power-supply system can be managed by BMS to battery in theory, prevent battery overcharge, overdischarge, short circuit draw
Play the generation of battery thermal runaway risk.But due to whole system it is complicated, it is necessary to thousands of batteries by series parallel structure come
Demand is met, and working condition is severe, and the generation of battery thermal runaway is with very strong randomness and unpredictability.
The failure of large scale power-supply system has great destructiveness, not only brings huge property loss, it is also possible to endanger
And human life's safety, battery modules and power-supply system casing are last line of defenses of battery safety, so by changing lithium
Ion battery body structure, the security performance for improving power-supply system is just particularly important.
The content of the invention
The purpose of this utility model is a kind of good lithium ion with heat blocking function of rational in infrastructure, using effect of design
Battery case.
The technical solution of the utility model is, a kind of lithium ion battery casing with heat blocking function, and it includes casing,
It is characterized in that：Casing is made up of internal box with outer case, heat-sink shell is provided between internal box and outer case, in outer case
Housing is provided with relief valve, provided with heat absorption material addition mouth on the housing of outer case.
The utility model is in order to improve the security performance of lithium ionic cell module and system to a certain extent, by by electricity
Pond casing is processed into double-decker, and filling heat absorption material in inside when thermal runaway occurs for box house battery, passes through inside stuffing
Matter absorbs battery release heat, so as to reach the purpose for the security performance for improving lithium ionic cell module and system.
Brief description of the drawings；
Fig. 1 is structural representation of the present utility model.
Embodiment：
Embodiment is described in detail with reference to the figures above,
A kind of lithium ion battery casing with heat blocking function, it includes casing, and the casing is by internal box 2 and outer container
Body 1 is constituted, and heat-sink shell 5 is provided between internal box and outer case, relief valve 3 is provided with the housing of outer case, in outer case
Housing provided with heat absorption material addition mouth 4.
Battery case when in use, is processed into double-decker by the utility model first, and casing is higher using heat transfer coefficient
Metal material, the heat absorption material that cavity is added between casing double-decker can be fluid（It is many such as ethylene glycol, glycerine
First alcohols）Or solid matter (the high latent heat class paraffin compounds of such as E48 or polyethylene glycol, polyglycerol, polypropylene
The high molecular polymers such as acids）.Outside the enclosure surface is provided with heat absorption material addition mouth and relief valve, the Opening pressure of relief valve
The pressure that can be undergone phase transition according to addition heat absorption material is adjusted, and the quantity of relief valve can be according to electric box house battery
The size of system capacity is adjusted.
Lithium ion battery is in the case where occurring thermal run away condition inside Battery case, and battery discharges substantial amounts of heat, battery production
Raw heat passes to box house heat absorption material, if battery thermal runaway scope is smaller, the heat of release by interior
Amount is smaller, and heat absorption material absorbs heat by itself larger thermal capacitance, if the heat mistake of larger area occurs for box house battery
Control, heat absorption material can absorb substantial amounts of heat by phase transformation, and the volatile materials that heat absorption material is produced at high temperature can lead to
The relief valve discharge casing of box outer surface is crossed, while taking away most of heat, the safety of lithium ion battery can be significantly improved
Performance.
Above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.For institute
For the those of ordinary skill in category field, other various forms of changes or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments, and the obvious change or change thus extended out
Within the dynamic protection domain created still in the utility model.
Claims (1)
1. a kind of lithium ion battery casing with heat blocking function, it includes casing, it is characterised in that：Casing by internal box with
Outer case is constituted, and heat-sink shell is provided between internal box and outer case, relief valve is provided with the housing of outer case, in outer case
Housing provided with heat absorption material addition mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385313.4U CN206340590U (en) | 2016-12-16 | 2016-12-16 | A kind of lithium ion battery casing with heat blocking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621385313.4U CN206340590U (en) | 2016-12-16 | 2016-12-16 | A kind of lithium ion battery casing with heat blocking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340590U true CN206340590U (en) | 2017-07-18 |
Family
ID=59300616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621385313.4U Active CN206340590U (en) | 2016-12-16 | 2016-12-16 | A kind of lithium ion battery casing with heat blocking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023114A (en) * | 2017-12-08 | 2018-05-11 | 重庆市鑫奕星机电制造有限公司 | A kind of new-energy automobile out-put supply |
-
2016
- 2016-12-16 CN CN201621385313.4U patent/CN206340590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023114A (en) * | 2017-12-08 | 2018-05-11 | 重庆市鑫奕星机电制造有限公司 | A kind of new-energy automobile out-put supply |
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