CN106784518A - A kind of safe battery pack - Google Patents
A kind of safe battery pack Download PDFInfo
- Publication number
- CN106784518A CN106784518A CN201710018421.0A CN201710018421A CN106784518A CN 106784518 A CN106784518 A CN 106784518A CN 201710018421 A CN201710018421 A CN 201710018421A CN 106784518 A CN106784518 A CN 106784518A
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- Prior art keywords
- battery
- battery cell
- battery pack
- honeycomb
- busbar
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- 238000005336 cracking Methods 0.000 claims abstract description 12
- 229910000679 solder Inorganic materials 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 49
- 230000005611 electricity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011162 core material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- 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
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/579—Devices or arrangements for the interruption of current in response to shock
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of safe battery pack, including several battery cells, busbar, battery case, several described battery cell connection in series-parallel form battery pack, and the safety valve of battery cell is consistent towards safe direction and in battery case；Described busbar is located at the inner side of battery pack, battery cell is connected by wire with the electrode tip of battery cell, wire is provided with prefabricated cracking mouth, the prefabricated cracking mouth is on wire or in busbar or on the solder joint of connection, it is prefabricated cracking mouth battery cell occur serious crumple when by cutting edge break line, so as to cut off the electrical connection of battery cell and busbar；There is the battery protection lid of controllable opening in the safe direction of battery pack, be connected to a fixed with battery case；Beneficial effects of the present invention are：By improved structure, it is to avoid cause battery pack integrally out of control in battery cell thermal runaway, it is ensured that the security of battery pack.
Description
Technical field
The invention belongs to cell art, more particularly to a kind of safe battery pack.
Background technology
In the groups of requirement of battery, a particularly significant design object is the safety for ensureing battery pack, especially in vehicle electrical
Pond group, our requirement is in the case of any unexpected generation, to be unlikely to battery pack, the burning of vehicle.Existing side
Case or take to battery be grouped the measure of isolation, even if make the burning of battery this group that is also limited to out of control interior, or
Safe battery structure is taken, battery itself not combustion explosion is allowed.But existing case shows that the mode of preceding kind is still not enough managed
Think, the consequence of vehicle burning has finally been often led to, without the purpose that can reach design.The latter at present still do not find through
Help rational material structure.
The capacity of battery pack especially automobile power cell is in the huge of nearly hundred KWH, and the quantity of corresponding battery unit is huge
Greatly, the ever-increasing flood tide quantity of electric motor car in addition, the quantity of battery unit will be more magnanimity, from terms of probability, flood tide quantity
Battery unit due to the thermal runaway event that a variety of causes causes it is inevitable.From this view, existing technology is still needed
Further to improve the security of system.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and a kind of safe battery pack is provided, Neng Gouyou
Effect prevents the runaway combustion state propagation after battery cell generation thermal runaway.
It is of the invention to complete by following technical solution, including several battery cells, busbar, battery case,
Several described battery cell connection in series-parallel form battery pack, and the safety valve of battery cell is consistent towards safe direction and position
In in battery case；Described busbar is located at the inner side of battery pack, and battery cell passes through the electrode tip phase of wire and battery cell
Connection, wire is provided with prefabricated cracking mouth, the prefabricated cracking mouth on wire or in busbar or on the solder joint of connection, in advance
Cracking mouth is made when battery cell occurs serious crumple displacement by cutting edge break line, so as to cut off battery cell with busbar
Electrical connection；There is the battery protection lid of controllable opening in the safe direction of battery pack, be connected to a fixed with battery case.
Preferably, having additional honeycomb thermofin on the safety valve of the battery cell, the hot thermal insulation layer of the honeycomb is located at battery
The outside of monomer；Battery protection lid, the honeycomb of the hot thermal insulation layer of described honeycomb are installed below the hot thermal insulation layer of described honeycomb
Hole constitutes the corresponding reserved discharge structure of battery cell, and loose heat-barrier material is provided with the reserved discharge structure, and honeycomb heat is heat-insulated
Layer is electrically insulated with battery cell and mutually fixes, and the honeycomb in the hot thermal insulation layer of described honeycomb is battery list in normal use
Body provides structural support, crumple deformation space is provided when battery protection lid is deformed by severe crush, for battery cell is provided
Cushion space.The hot thermal insulation layer of honeycomb is thermally isolated safely for battery pack provides inside battery simultaneously, and heat management is heat-insulated.
Preferably, and the obstruction string bag is installed between battery protection lid and the hot thermal insulation layer of honeycomb, stop the string bag in battery
Lid launches when opening and stops the comburant of battery cell ejection.
Preferably, described busbar is provided with monomer crumple hole corresponding with battery cell, each monomer crumple hole pair
Answer a battery cell.
Preferably, reserved discharge structure in the hot thermal insulation layer of described honeycomb in normal use for battery cell is provided
Structural support, crumple deformation space is provided when battery protection lid is deformed by severe crush, for battery cell provides buffering sky
Between.
Preferably, described battery protection lid is provided with release device with battery case connection.
Beneficial effects of the present invention are：By improved structure so that battery pack damage defensive ability/resistance ability enhancing to external world, subtract
Few thermal runaway phenomenon by monomer in battery pack caused by outer damage, reduces the situation of overall short circuit under outside damage
Occur, it is to avoid caused in battery cell thermal runaway internal battery pack it is out of control spread caused by it is overall out of control, improve battery
The security of group.
Brief description of the drawings
Fig. 1 is main structure diagram of the invention.
Fig. 2 is overlooking the structure diagram of the invention.
Fig. 3 is mplifying structure schematic diagram at the I of Fig. 1.
Fig. 4 is mplifying structure schematic diagram at the II of Fig. 1.
Label in accompanying drawing is respectively：1st, battery cell；2nd, wire；3rd, busbar；4th, battery case；5th, cutting edge；6th, honeybee
The hot thermal insulation layer of nest；7th, battery protection lid；8th, the string bag is stopped；9th, prefabricated cracking mouth；10th, release device；11st, safety valve；12nd, on
Lid；31st, monomer crumple hole；61st, loose heat-barrier material；62nd, discharge structure is reserved；63rd, honeycomb hole；101st, battery A；102nd, battery
B。
Specific embodiment
Below in conjunction with accompanying drawing, 1 to 4 couple of present invention does detailed introduction：The present invention includes several battery cells 1, busbar
3rd, battery case 4, several described side-by-side series of battery cell 1 form battery pack, and battery cell 1 safety valve 11 1
Cause towards safe direction and in battery case 4, i.e., when safety valve 11 discharges, flame and injection that battery cell 1 discharges
The direction of thing is to be unlikely to damnous in the short time；The right and left is respectively two kinds of electricity of different safety valve structures in Fig. 1
Pond monomer, left side is the battery A101 of common capacitance structure, and bleed outlet is with battery electrode mouthful away from right side is common electricity
Pond B102 structures, bleed outlet is the electrode side of battery.
In right side structure, in order to ensure that battery crumple wire can be cut off, wire 2 has the fixation of auxiliary with battery case 4
Point.
The busbar 3 of described battery pack is located at the inner side of battery pack, by the buffer protection of most multilayer, reduces busbar short circuit
The probability of the caused short circuit of monomer in batch.Described busbar 3 is connected by wire 2 with the upper end of battery cell 1, on busbar 3
The monomer crumple hole 31 corresponding with battery cell 1 is provided with, when battery cell 1 receives severe crush, battery cell 1 is entered by crumple
Enter monomer crumple hole 31, hole insulation ensures electronic short circuit does not occur with busbar 3 during battery container crumple, so that monomer crumple hole
31 shorten the thickness of battery pack；Busbar has an insulating materials of high intensity, and has reserved exhausted in monomer crumple hole 31
Edge material, each battery cell 1 has safety valve 11, and the hot thermal insulation layer 6 of honeycomb is had additional on the safety valve 11, and the honeycomb heat is heat-insulated
Layer 6 is located at the lower end of battery cell 1；The lower section of the hot thermal insulation layer 6 of described honeycomb is provided with battery protection lid 7, the battery protection
Lid 7 is connected to a fixed with battery case 4, when normally using for battery provides basic protection, and battery protection lid 7 and honeycomb
The obstruction string bag 8 is installed between hot thermal insulation layer 6.
The installation direction of the safety valve 11 of described battery is consistent outside, i.e., flame release is when safety valve 11 discharges
Towards the string bag 8 is stopped, outside here refers to a direction for safety, and the flame of release will not cause the battery cell to periphery
1 prejudicial influence, can be a lateral direction for safety of battery pack installation, such as the bottom of vehicle.Should in fixed
Can also be a space with absorption and dilute combustion heat for inside in, such as with spray fire extinguishing agent or pre-
Fill a space of extinguishing chemical.
Simple honeycomb thermal insulation layer 6 is used when battery structure need not strengthen, the loose heat-insulated material of smooth pre- opening
Material 61 is plugged in the bleed outlet side of battery, once battery is released, flame or content can discharge from pre- donsole, and produce
High temperature influences to be isolated by heat-barrier material on the battery cell 1 on periphery.When loose heat-barrier material 61 can be in the cells burst stage
When battery end is maintained at safe temperature, it is clear that spreading for cells burst can be prevented.
The separation layer of honeycomb can provide the protection effect more strengthened, while honeycomb good rigidity and matter
Gently, support is provided with for battery pack in vehicle Ying Zhongke.With the support of provided auxiliary and can delay when being invaded by machinery simultaneously
The deformation space of punching.
For battery pack provides outside protection when described battery protection lid 7 is usual, when being burnt in battery pack, heat
Amount savings to loose heat-barrier material 61 be also difficult to the influence to the battery core on periphery when, release device 10 can open battery protection
The locking mechanism of lid 7, release battery protection lid 7.Battery pack after release battery protection lid 7, the high temperature of burning releases major part
Exterior space is put into, and then further reduces the risk of being heated of battery.
Release device 10 can utilize appropriate deflation agent, the pressure controlled blast of certain moment of generation to open
The enclosing cover of battery pack, is similar to the release of air bag.
Enclosing cover release can be the overall enclosing cover of battery pack, when reliable sexual satisfaction is required, can simplify structure, mitigate weight
Amount.Remaining battery still has certain internal Protection ability after release enclosing cover.
Enclosing cover release can also be discharged in battery group form, but can increase certain structural complexity.
The conductive obstruction string bag 8 being connected with vehicle body constitutes a faraday cup simultaneously, when battery pack burning needs outside
During water spray fire-fighting, it is possible to provide the shielding isolation of electricity, the internal high pressure of battery pack is prevented to externalities.The string bag 8 is stopped by resistance to
The material of high-temperature electric conduction is constituted, and such as finer wire braiding is formed, the need for mesh-density meets obstruction content and shielding, from sealing
To 50*50 is arrived, can be with various suitable type of weaves.There is funnel type shape, guiding comburant is away from cell body after expansion.
The surface of busbar 3 has insulating barrier, rub resistance, resistance to gentle proof voltage.Busbar 3 after assembling be capped support, glue or
Insulated paint is fixed on the upper lid 12 of shell 4.
Busbar 3 opens monomer crumple hole 31 at middle large area position, for the crumple of battery cell provides headspace, from
And the thickness for reducing battery pack takes, while the current capacity by dividing equally conductive bus bar 3, mitigates the material of conductive bus bar, enter
And mitigate weight.
The wire 2 that described battery cell 1 is connected with busbar 3 is provided with prefabricated cracking mouth 9, and the prefabricated cracking mouth 9 exists
On wire 2 or in busbar 3 or on the solder joint of connection.When battery pack is extruded by external force, battery cell 1 is forced to busbar 3
Constantly, positive and negative two loops are cut off with the connection of busbar 3 for displacement, and insulating barrier keeps exhausted between battery and connecting line, busbar
Edge.The insulating barrier of high intensity has the flexibility for adapting to, and can deform without terminating in breakage in battery extrusion.Such as gathering for high intensity
The materials such as fragrant fiber cloth, film.
Operation principle of the invention is：The battery pack of vehicle bottom is installed on, by outside batteries mechanical shock, is easiest to receive
Outside foreign matter is invaded, and the exterior protection plate of bottom provides the protection of the first level；When the protection of ground floor is still insufficient to
When, the deformation of bottom and the intrusion of foreign matter will be into the hot thermal insulation layers 6 of honeycomb, there is provided a larger deformation and energy-absorbing space, this
In as the second layer protection；But when the protection of the second layer is still insufficiently resistant to, intrusion will be applied on battery cell 1, be received
Battery cell 1 to infringement is extruded and moves up before being deformed, and the mobile of battery will cut off battery the two poles of the earth and lead back
Connecting line between road so that battery cell 1 is separated from major loop, it is to avoid by defective cell short circuit, this is major loop
The protection of third layer；When the infringement of external force also increases, extruded battery will be destroyed, burn, burned flame spray
Outgoing direction is towards outside, while flame is subject to guiding for the hot thermal insulation layer 6 of honeycomb, in the hot hole of thermal insulation layer 6 of honeycomb of periphery battery
Loose heat-barrier material 61 blocks the propagation of flame heat regulating, while when battery out of control has been formed, battery pack will open electricity
The battery protection lid 7 of bottom of pond layer, allows flame to distribute heat to exterior space, so as to block the heating to periphery battery.Keriotheca
Thickness and the loose heat-barrier material of inside cause to be unlikely to during cellular crumple to block discharge-channel.This is the 4th layer anti-
Shield.Because of uncontrollable factor, the battery of burning will be jetted out flames and internal core material, and the incendiary material of ejection will be hindered
Only stopping in the string bag 8, and be directed into the position away from cell body, reduce ejecta ignite periphery material may, this is the
Five layers of protection.When event further deteriorates, when outside fire-fighting needs to carry out water spray rescue, outside separation net is provided
The electric isolation of ground floor, at the same the honeycomb of inside and also provide electricity shielding isolation, for fire-fighting provides safely.
It is in design, to be designed by the intensity for controlling outer layer division board and the energy-absorbing for stopping the string bag 8 in vehicle, can resists
Most of outside machinery is invaded.Because the downward effect energy of vehicle is limited under normal circumstances.
When on-mechanical is damaged caused by battery is because of internal cause, directly prevented by stopping the string bag 8 and the 4th layer for releasing
Shield starts to provide protection.
By such cell stack designs, it is clear that will can avoid the infringement of most of battery pack, even if occurring, can
Controlled in the range of battery cell with by infringement.
When battery safety management system detectio is to generation abnormal conditions, the temperature of battery is increased to dangerous spot, battery list
When the burning of body 1 is inevitable, exhaust relieving mechanism will be triggered, the quilt of battery protection lid 7 of the corresponding battery group of battery
Abandon, the internal prefabricated obstruction string bag 8 is opened, or injection can be triggered by extinguishing chemical simultaneously, filling stops space in the string bag 8.Electricity
The blast effluent in pond will put out a fire stopping in the string bag 8 after burning, and the battery on periphery is not affected because heat is isolated.
When battery pack is subject to strong external impacts, battery case 4 absorbs impact first, still invalid when absorbing, and
When battery cell 1 sustains damage, and be possible to multiple battery cells 1 be damaged, when battery cell 1 is out of control uncontrollable,
Battery protection lid 7 will be abandoned, and likewise enter battery fire extinguishing program.
So impaired aspect for being controlled in battery cell 1 and group of battery pack.Impaired battery pack can be by repairing
Recover function again.
In brief, electrokinetic cell system failure mode, can be divided into three kinds of failure modes of different levels, i.e. battery core and lose
Effect pattern, battery management system failure mode, Pack system integration failure modes.Battery core failure is difficult to avoid that management system is lost
Effect can obtain acceptable security performance by the redundancy of system and quality control, and the Pack system integrations are failed especially in car
It is difficult to thoroughly avoid in.
So by the structure design of safety, the conditional extensions of this several failure are eliminated, then battery pack is a safety
System.
It is understood that it will be understood by those skilled in the art that being subject to technical scheme and inventive concept
The protection domain of appended claims of the invention should all be belonged to replacement or change.
Claims (5)
1. a kind of safe battery pack, including several battery cells (1), busbar (3), battery case (4), it is characterised in that：
Several described battery cell (1) connection in series-parallel form battery pack, and the safety valve (11) of battery cell (1) is consistent towards peace
Omnirange and in the battery case (4)；, positioned at the inner side of battery pack, battery cell (1) is by wire for described busbar (3)
(2) electrode tip with battery cell (1) is connected, and wire (2) is provided with prefabricated cracking mouth (9), and prefabricated cracking mouth (9) is being led
On line (2) or in busbar or on the solder joint of connection, there is serious crumple position in prefabricated cracking mouth (9) in battery cell (1)
By cutting edge (5) break line (2) during shifting, so as to cut off the electrical connection of battery cell (1) and busbar (3)；In the peace of battery pack
Omnirange has the battery protection lid (7) of controllable opening, is connected to a fixed with battery case (4).
2. safe battery pack according to claim 1, it is characterised in that：On the safety valve (11) of the battery cell (1)
Have additional honeycomb thermofin (6), outside of the hot thermal insulation layer of the honeycomb (6) positioned at battery cell (1)；The hot thermal insulation layer of described honeycomb
(6) battery protection lid (7) is installed, the honeycomb hole (63) of the hot thermal insulation layer of described honeycomb (6) constitutes battery cell (1) below
Loose heat-barrier material (61), the hot thermal insulation layer of honeycomb are provided with corresponding reserved discharge structure (62), the reserved discharge structure (62)
(6) it is electrically insulated with battery cell (1) and is mutually fixed, the honeycomb in the hot thermal insulation layer of described honeycomb (6) is in normal use
For battery cell (1) provides structural support, crumple deformation space is provided when battery protection lid (7) is deformed by severe crush,
For battery cell (1) provides cushion space.
3. safe battery pack according to claim 1, it is characterised in that：And battery protection lid (7) is heat-insulated with honeycomb heat
The obstruction string bag (8) is installed between layer (6), is stopped the string bag (8) and is launched when battery cover is opened and stop battery cell (1) ejection
Comburant.
4. safe battery pack according to claim 1, it is characterised in that：Described busbar (3) is provided with and battery list
The corresponding monomer crumple hole (31) of body, each monomer crumple hole (31) one battery cell (1) of correspondence.
5. safe battery pack according to claim 1, it is characterised in that：Outside described battery protection lid (7) and battery
Shell (4) connection is provided with release device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018421.0A CN106784518A (en) | 2017-01-10 | 2017-01-10 | A kind of safe battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018421.0A CN106784518A (en) | 2017-01-10 | 2017-01-10 | A kind of safe battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784518A true CN106784518A (en) | 2017-05-31 |
Family
ID=58949249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710018421.0A Pending CN106784518A (en) | 2017-01-10 | 2017-01-10 | A kind of safe battery pack |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550951A (en) * | 2018-06-04 | 2018-09-18 | 西南交通大学 | A kind of high-power lithium ion battery heat management system |
| CN109148781A (en) * | 2018-09-20 | 2019-01-04 | 华侨大学 | A kind of battery case of high efficient protected |
| WO2020223676A1 (en) * | 2019-05-01 | 2020-11-05 | Electric Power Systems, Inc. | Battery thermal management strip |
| DE102021204478A1 (en) | 2021-05-04 | 2022-11-10 | Edag Engineering Gmbh | Electric traction battery for a vehicle |
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| DE102021204478A1 (en) | 2021-05-04 | 2022-11-10 | Edag Engineering Gmbh | Electric traction battery for a vehicle |
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