CN106384796A - Safe battery box and power battery with same - Google Patents
Safe battery box and power battery with same Download PDFInfo
- Publication number
- CN106384796A CN106384796A CN201610896482.2A CN201610896482A CN106384796A CN 106384796 A CN106384796 A CN 106384796A CN 201610896482 A CN201610896482 A CN 201610896482A CN 106384796 A CN106384796 A CN 106384796A
- Authority
- CN
- China
- Prior art keywords
- battery case
- heat
- insulation layer
- safe battery
- casing
- 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.)
- Withdrawn
Links
- 238000009413 insulation Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a safe battery box and a power battery with the same. The battery box comprises a box body, an elastic insulated and heat-insulated layer and a heat exchange layer, wherein the elastic insulated and heat-insulated layer is clung to the inner wall of the box body, and completely covers the whole internal wall surface of the box body; the heat exchange layer is clung to the inner side of the elastic insulated and heat-insulated layer. When cracking due to collision and extrusion, the battery box is capable of well protecting a battery pack therein, and preventing short circuit of the battery.
Description
Technical field
The present invention relates to cell art, especially a kind of safe battery case and the power current with this battery case
Pond.
Background technology
Lithium ion battery, because having high specific energy, high specific power and long service life, nowadays has been widely used and does electricity
The electrical source of power of motor-car.But, it stores energy height, uses organic electrolyte again, there is on fire and blast danger.People
On the one hand adopt multiple methods to try one's best from the design of cell and technique to improve the security performance of cell, in addition
Making great efforts to improve GT and Group Design, eliminating the various risk factors being likely to occur, such as to battery box structure as far as possible
Improvement be exactly one of them.
First method is to increase the intensity of battery case, adds reinforcement in bottom, lid and side wall.Such as, Application No.
The Chinese invention patent application of CN201410219548.5, adds bar shaped and lamellar reinforcement in aluminum alloy battery bottom with covering；
The Chinese utility model patent application of Application No. CN201521111090.8, die cast magnesium alloy case upper and lower covers and
All there is reinforcement in enhanced multiple gripper shoes.
Second method is in battery case plus cushion, even if collision and extruding, set of cells also can be protected not to be subject to
Infringement.Such as, the Chinese invention patent application of Application No. CN201310096779.7, reserves big space in easy impingement area,
And load spring damping ball.The Chinese invention patent application of Application No. CN201510483068.4, in car body placing battery
Bottom surface installs spring additional, thus reducing the injury of vibrations.The Chinese utility model patent Shen of Application No. CN201521031628.4
Please, add buffering energy-absorbing layer in easy impingement area, this layer is fiber, macromolecular material or rubber.Application No. CN201610138950X
Chinese invention patent application, peripheral hardware sprayed coating set gradually insulating glass steel and rubber buffer in case.
The third method is to focus on the radiating of battery case.The Chinese utility model of Application No. CN201529272307.7 is special
Profit application, has added many fin on battery box cover, the Chinese invention patent application of Application No. CN201510483068.4,
Also install fan additional, accelerate thermal convection current to set of cells.
The designer of these patent descriptions above-mentioned electric automobile and battery has attached great importance to the safety of battery, and notes
To the anti-collision capacity improving battery case.
However, above-mentioned various way all has corresponding shortcoming, specific as follows：
1st, increase the intensity of shell, plus reinforcement, this is most effective easy.But collide in major accident and extrude
The strength that can resist much larger than battery case of destructive power.Battery case can deform or even rupture.Cell and conducting connecting part
Will squeezed rotten or expose outside it is possible to occur short circuit, there is on fire and blast danger.
2nd, increase thick cushion, this way very well, very effectively, but has very strong cushion effect it is necessary to do to it
Obtain very thick, be difficult to find out place in narrow and small battery case.
The 2nd, exhaust fan is installed and improves rate of heat dispation very well, but be difficult in battery case find so big space, and at a high speed
The service life of the fan of rotation allows of no optimist.
Content of the invention
The present invention seeks to：In order to overcome the problems referred to above, a kind of safe battery case is provided and there is this battery case
Electrokinetic cell, when this battery case is occurred rupture by downthrust, can protect its internal set of cells well, prevent electricity
Pond short circuit.
The technical scheme is that：A kind of safe battery case, including casing, also includes：
Elastic insulated heat insulation layer, it is close to the inwall setting of described casing, and will be complete for the whole internal face of described casing
All standing is lived；And
Heat exchange layers, it is close to the inner side setting of described elastic insulated heat insulation layer.
The present invention this safe battery case, on the basis of technique scheme, also includes following preferred version：
Described heat exchange layers are the thermal insulation layers being formed by insulating heat-conduction material.
Described casing is metal material, and a part for described thermal insulation layer stretches out outside described casing, and with described casing
Outer wall be fitted and connected.
A part for described thermal insulation layer is stretched out outside described casing, and is connected with extraneous heat dissipation equipment.
Described thermal insulation layer is heat conductive rubber or is heat-conducting plastic.
The whole internal face of described elastic insulated heat insulation layer is covered all by described thermal insulation layer.
Described elastic insulated heat insulation layer is insulating rubber, sponge or glass fibre.
Described heat exchange layers are Heat Exchanger in Circulating Water System.
A kind of electrokinetic cell, including set of cells, also includes the safe battery case of said structure, described set of cells is contained in
It is close in described safe battery case and with described heat exchange layers arrange.
Described set of cells is lithium battery group.
It is an advantage of the invention that：
1st, elastic insulated heat insulation layer is close to the inwall setting of casing and is covered all the whole internal face of casing, one
The battery case of denier electrokinetic cell be squeezed shock and be deformed or even rupture, elastic insulated heat insulation layer relies on the high-elastic of itself
Property and independent of box body wall outside, remain to keep complete, remain to set of cells insulate, be unlikely to run into internal electricity because of external object
The electric-conductor of pond group and short-circuit.Thus, ensured cell safety.
2nd, because the presence of elastic insulated heat insulation layer increases heat transmission resistance, the heat that can affect box house set of cells dissipates
Send out.After installing heat exchange layers additional inside elastic insulated heat insulation layer, the heat that set of cells produces can be transmitted to shell wall or the external world,
Keeping temperature equalizes, moderate.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to required use in embodiment description
Accompanying drawing be briefly described, drawings in the following description are only some embodiments of the present invention, the common skill for this area
For art personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation (profile) of electrokinetic cell in the embodiment of the present invention；
Wherein：1- casing, the elastic insulated heat insulation layer of 2-, 3- heat exchange layers, 4- set of cells.
Specific embodiment
Below in conjunction with specific embodiment, such scheme is described further.It should be understood that these embodiments are for illustrating
The present invention and be not limited to limit the scope of the present invention.The implementation condition adopting in embodiment can be done according to the condition of concrete producer
Adjust further, not marked implementation condition is usually the condition in normal experiment.
Fig. 1 shows a specific embodiment of this electrokinetic cell of the present invention, and it includes battery case and is housed in this electricity
Set of cells 4 in the case of pond, set of cells 4 is lithium battery group.Battery case includes the casing 1 of metal material, elastic insulated heat insulation layer 2 and
Heat exchange layers 3.Wherein, elastic insulated heat insulation layer 2 is close to the inwall setting of casing 1, and will be complete for the whole internal face of casing 1
Cover, elastic insulated heat insulation layer 2 and casing 1 do not interfix.The inner side that heat exchange layers 3 are close to elastic insulated heat insulation layer 2 sets
Put, for absorbing the heat of set of cells 4, prevent set of cells 4 temperature too high.
In the present embodiment, described elastic insulated heat insulation layer 2 can adopt insulating rubber, it would however also be possible to employ sponge, also may be used
To adopt glass fibre.This elastic insulated heat insulation layer 2 be close to casing 1 inwall setting and will be complete for the whole internal face of casing 1
Cover, once the battery case of this electrokinetic cell be squeezed shock and be deformed or even rupture, elastic insulated heat insulation layer 2 according to
By itself high resiliency and independent of box body wall outside, remain to keep complete, remain to set of cells insulate, be unlikely to because of foreign objects
Body runs into the electric-conductor (as cell or conductive connecting piece) of internal battery and short-circuit.Thus, ensured cell safety.
In the present embodiment, described heat exchange layers 3 are the thermal insulation layer being formed by insulating heat-conduction material, wherein insulating heat-conductive
Material can adopt heat conductive rubber, it would however also be possible to employ heat-conducting plastic etc..Certainly, described heat exchange layers 3 can also adopt other structures
Form, such as heat exchanger, especially Heat Exchanger in Circulating Water System.
Directly the heat of set of cells 4 is outwards drawn for the ease of above-mentioned thermal insulation layer, and extra biography need not be set
Thermal part, the present embodiment stretches out a part for thermal insulation layer outside described casing 1, and is fitted and connected with the outer wall of casing 1.As
This can make the heat of set of cells 4 be transferred to the outside wall surface of metal cabinet 1 by thermal insulation layer, then is distributed to week by casing 1
Enclose in air.
Certainly, we can also stretch out a part for described thermal insulation layer outside casing 1, then it is extraneous with corresponding
Heat dissipation equipment is connected (not radiating) by cabinet exterior.
In the present embodiment, the whole internal face of elastic insulated heat insulation layer 2 is covered all by above-mentioned thermal insulation layer, battery
Group 4 is close to thermal insulation layer arrange.The contact area between set of cells 4 and thermal insulation layer inside it so can be ensured, enter
And improve the radiating efficiency of set of cells 4.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow people will appreciate that this
Bright content is simultaneously implemented according to this, can not be limited the scope of the invention with this.All according to main technical schemes of the present invention
Equivalent transformation or modification that spirit is done, all should be included within the scope of the present invention.
Claims (10)
1. a kind of safe battery case, including casing (1) it is characterised in that also including：
Elastic insulated heat insulation layer (2), it is close to the inwall setting of described casing (1), and the whole inwall by described casing (1)
Face covers all；And
Heat exchange layers (3), it is close to the inner side setting of described elastic insulated heat insulation layer (2).
2. safe battery case according to claim 1 is it is characterised in that described heat exchange layers (3) are by insulating heat-conductive
The thermal insulation layer that material is formed.
3. safe battery case according to claim 2 is it is characterised in that described casing (1) is metal material, described exhausted
A part for edge heat-conducting layer stretches out described casing (1) outward, and is fitted and connected with the outer wall of described casing (1).
4. safe battery case according to claim 2 is it is characterised in that a part for described thermal insulation layer stretches out institute
State casing (1) outward, and be connected with extraneous heat dissipation equipment.
5. safe battery case according to claim 2 is it is characterised in that described thermal insulation layer is heat conductive rubber or is
Heat-conducting plastic.
6. safe battery case according to claim 2 is it is characterised in that described thermal insulation layer will be described elastic insulated
The whole internal face of heat insulation layer (2) covers all.
7. safe battery case according to claim 1 is it is characterised in that described elastic insulated heat insulation layer (2) is thermal insulation
Rubber, sponge or glass fibre.
8. safe battery case according to claim 1 is it is characterised in that described heat exchange layers (3) are recirculated water heat exchange
Device.
9. a kind of electrokinetic cell, including set of cells (4) it is characterised in that also including as arbitrary described in claim 1～8
Safe battery case, described set of cells (4) is contained in described safe battery case and is close to cloth with described heat exchange layers (3)
Put.
10. electrokinetic cell according to claim 9 is it is characterised in that described set of cells (4) is lithium battery group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896482.2A CN106384796A (en) | 2016-10-14 | 2016-10-14 | Safe battery box and power battery with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896482.2A CN106384796A (en) | 2016-10-14 | 2016-10-14 | Safe battery box and power battery with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106384796A true CN106384796A (en) | 2017-02-08 |
Family
ID=57937424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610896482.2A Withdrawn CN106384796A (en) | 2016-10-14 | 2016-10-14 | Safe battery box and power battery with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106384796A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181018A (en) * | 2017-05-15 | 2017-09-19 | 重庆南涪铝精密制造有限公司 | A kind of cold and hot conduit with thermal insulation protection |
| CN107221725A (en) * | 2017-05-27 | 2017-09-29 | 东风商用车有限公司 | Electric automobile power battery box with movable heat insulation layer |
| CN107768574A (en) * | 2017-11-22 | 2018-03-06 | 重庆元和利泰镁合金制造有限公司 | Magnesium alloy battery case and electric automobile |
| CN110473990A (en) * | 2019-08-20 | 2019-11-19 | 成都市银隆新能源产业技术研究有限公司 | Battery case, battery and battery manufacturing process |
| CN112582735A (en) * | 2020-12-22 | 2021-03-30 | 桂林航天工业学院 | New energy automobile group battery anticollision auxiliary device |
| WO2024148703A1 (en) * | 2023-01-13 | 2024-07-18 | 宁德时代新能源科技股份有限公司 | Protection mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201812856U (en) * | 2010-01-11 | 2011-04-27 | 李光明 | Multiple-effect power module for electric vehicle |
| CN102144316A (en) * | 2008-09-05 | 2011-08-03 | 松下电器产业株式会社 | Battery pack |
| CN202871881U (en) * | 2012-06-05 | 2013-04-10 | 苏州市莱赛电车技术有限公司 | Heat conduction material temperature control battery box |
| CN203180008U (en) * | 2013-02-19 | 2013-09-04 | 合肥国轩高科动力能源股份公司 | Heat dissipation power battery pack used for electric automobile |
| CN203567538U (en) * | 2013-11-21 | 2014-04-30 | 观致汽车有限公司 | Box structure for vehicle and vehicle |
| CN203631702U (en) * | 2013-12-30 | 2014-06-04 | 成都凯迈科技有限公司 | Composite material battery heat-preserving box |
| CN206134771U (en) * | 2016-10-14 | 2017-04-26 | 苏州安靠电源有限公司 | Safe type battery box and power battery who has this battery box |
-
2016
- 2016-10-14 CN CN201610896482.2A patent/CN106384796A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144316A (en) * | 2008-09-05 | 2011-08-03 | 松下电器产业株式会社 | Battery pack |
| CN201812856U (en) * | 2010-01-11 | 2011-04-27 | 李光明 | Multiple-effect power module for electric vehicle |
| CN202871881U (en) * | 2012-06-05 | 2013-04-10 | 苏州市莱赛电车技术有限公司 | Heat conduction material temperature control battery box |
| CN203180008U (en) * | 2013-02-19 | 2013-09-04 | 合肥国轩高科动力能源股份公司 | Heat dissipation power battery pack used for electric automobile |
| CN203567538U (en) * | 2013-11-21 | 2014-04-30 | 观致汽车有限公司 | Box structure for vehicle and vehicle |
| CN203631702U (en) * | 2013-12-30 | 2014-06-04 | 成都凯迈科技有限公司 | Composite material battery heat-preserving box |
| CN206134771U (en) * | 2016-10-14 | 2017-04-26 | 苏州安靠电源有限公司 | Safe type battery box and power battery who has this battery box |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181018A (en) * | 2017-05-15 | 2017-09-19 | 重庆南涪铝精密制造有限公司 | A kind of cold and hot conduit with thermal insulation protection |
| CN107221725A (en) * | 2017-05-27 | 2017-09-29 | 东风商用车有限公司 | Electric automobile power battery box with movable heat insulation layer |
| CN107221725B (en) * | 2017-05-27 | 2023-10-10 | 东风商用车有限公司 | Power battery box of electric automobile with movable heat insulation layer |
| CN107768574A (en) * | 2017-11-22 | 2018-03-06 | 重庆元和利泰镁合金制造有限公司 | Magnesium alloy battery case and electric automobile |
| CN110473990A (en) * | 2019-08-20 | 2019-11-19 | 成都市银隆新能源产业技术研究有限公司 | Battery case, battery and battery manufacturing process |
| CN112582735A (en) * | 2020-12-22 | 2021-03-30 | 桂林航天工业学院 | New energy automobile group battery anticollision auxiliary device |
| CN112582735B (en) * | 2020-12-22 | 2022-08-09 | 桂林航天工业学院 | New energy automobile group battery anticollision auxiliary device |
| WO2024148703A1 (en) * | 2023-01-13 | 2024-07-18 | 宁德时代新能源科技股份有限公司 | Protection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170208 |