CN108767146A - The safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect - Google Patents
The safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect Download PDFInfo
- Publication number
- CN108767146A CN108767146A CN201810318642.4A CN201810318642A CN108767146A CN 108767146 A CN108767146 A CN 108767146A CN 201810318642 A CN201810318642 A CN 201810318642A CN 108767146 A CN108767146 A CN 108767146A
- Authority
- CN
- China
- Prior art keywords
- battery
- holding part
- fire extinguishing
- safeguard structure
- extinguishing material
- 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.)
- Granted
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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
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
-
- 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
The present invention provides a kind of safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect, including upper cover, lower cover, battery separator and fire extinguishing material, battery separator is set between upper cover and lower cover, battery separator has the first holding part and the second holding part, first holding part is adjacent to upper cover and between the first battery and the second battery, second holding part is adjacent to lower cover and between the first battery and the second battery, battery separator material has critical-temperature, fire extinguishing material is inserted and is sealed in the first holding part and the second holding part, wherein, when the temperature of first battery catching fire and flame is more than critical-temperature, first holding part and/or the second holding part deform damaged and discharge fire extinguishing material and the first battery is made to stop burning, and then protect the second battery.The present invention can effectively put out a fire when battery catching fire by fire extinguishing material, and then prevent battery from prolonging burning.
Description
Technical field
The present invention relates to a kind of safeguard structures, and in particular to a kind of inhibition battery thermal runaway of tool fire extinguishing effect
Safeguard structure.
Background technology
Tradition inhibits battery to prolong the practice of burning, and nothing more than the spacing increased between battery or paraffin or silica gel is perfused
Around battery etc., but the increasing of battery spacing can make the external form of entire battery module increase, and feasibility is not high, and fills
Paraffin or silica gel are noted around battery, is easy to include wherein by air and cause flame retardant effect bad or easy leakage etc. is asked
Topic will so influence to produce, have much room for improvement.
Therefore, it is necessary to design a kind of safeguard structure of the inhibition battery thermal runaway of novel tool fire extinguishing effect, with gram
Take drawbacks described above.
Invention content
It is an object of the invention to propose a kind of safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect, inside
Include fire extinguishing material, can effectively inhibit intensity of a fire when battery catching fire to diffuse to adjacent another battery, and then protect
Battery.
An embodiment according to the present invention proposes a kind of safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect,
To accommodating first battery and the second battery, which includes：Upper cover；Lower cover is combined with the upper cover；Battery point
Spacing body is set between the upper cover and the lower cover, which has the first holding part and the second holding part, this first
Holding part adjacent to the upper cover and between first battery and second battery, second holding part adjacent to the lower cover and
Between first battery and second battery, the material of the battery separator has critical-temperature；And fire extinguishing
Material is inserted and is sealed in first holding part and second holding part；Wherein, the first battery catching fire and flame
Temperature when being more than the critical-temperature, first holding part and/or second holding part deformation are damaged and discharge the fire extinguishing material
And first battery is made to stop burning, and then protect second battery.
As optional technical solution, which is respectively provided with periphery with second battery, the battery
Core separator two opposite sides are respectively provided with the first battery periphery clad structure and the second battery periphery cladding
Structure, the first battery periphery clad structure are separated in first electricity with the second battery periphery clad structure
Between Chi Xin and second battery, wherein first holding part be located at the first battery periphery clad structure, this
In the triangular space that two battery periphery clad structures and the upper cover are surrounded, which is located at first battery
In the triangular space that core periphery clad structure, the second battery periphery clad structure and the lower cover are surrounded.
As optional technical solution, which includes the multiple first sub- holding parts, and multiple first son is accommodating
Portion between first battery and second battery, and is separated by with first partition each other along straight line sequential.
As optional technical solution, which includes the multiple second sub- holding parts, and multiple second son is accommodating
Portion between first battery and second battery, and is separated by with second partition each other along straight line sequential.
Further include the first film layer and the second film layer as optional technical solution, first film layer and second film layer
It is covered each by positioned at the top of first holding part and the fire extinguishing material in second holding part.
As optional technical solution, which reacts and generates barrier property gas, in air-isolation
Oxygen.
As optional technical solution, the barrier property gas include in carbon dioxide, nitrogen, ammonia and vapor at least
One of them.
As optional technical solution, in the fire extinguishing material weight percent of diammonium hydrogen phosphate between 8%~14% it
Between.
As optional technical solution, the weight percent of potassium carbonate is between 25%~35% in the fire extinguishing material.
As optional technical solution, the weight percent of sodium bicarbonate is between 4%~8% in the fire extinguishing material.
As optional technical solution, the weight percent of sodium tungstate is between 2%~6% in the fire extinguishing material.
Compared with prior art, the safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect of the invention, including it is upper
Lid, lower cover, battery separator and fire extinguishing material, battery separator are set between upper cover and lower cover, and battery separates
Part has the first holding part and the second holding part, the first holding part adjacent to upper cover and positioned at the first battery and the second battery it
Between, adjacent to lower cover and between the first battery and the second battery, battery separator material has faces the second holding part
Boundary's temperature, fire extinguishing material filling and be sealed in the first holding part and the second holding part, wherein the first battery catching fire and
When the temperature of flame is more than critical-temperature, the first holding part and/or the second holding part deform damaged and discharge fire extinguishing material and make
First battery stops burning, and then protects the second battery.Include fire extinguishing material inside the safeguard structure of the present invention, works as electricity
It when the core catching fire of pond, can effectively put out a fire, and then prevent battery from prolonging burning.In addition, battery spacing is not required to increase, so that entirely
The external form of battery module is more light and handy, and is suitble to mass production, to improve yield.
Description of the drawings
Fig. 1 is painted the appearance diagram of the safeguard structure of the inhibition battery thermal runaway according to one embodiment of the invention.
Fig. 2 is painted the decomposition diagram of the safeguard structure of the inhibition battery thermal runaway of Fig. 1.
Fig. 3 is painted the schematic diagram that the safeguard structure of the inhibition battery thermal runaway of Fig. 2 is watched by downwards angle of visibility.
Fig. 4 is painted the schematic diagram that battery is set in the safeguard structure for inhibiting battery thermal runaway.
Fig. 5 is painted diagrammatic cross-section and part of the safeguard structure of the inhibition battery thermal runaway of Fig. 1 along A-A hatchings
Enlarged drawing.
Specific implementation mode
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment specifically
It is bright as follows.
Fig. 1 to Fig. 5 is please referred to, Fig. 1 is painted the safeguard structure of the inhibition battery thermal runaway according to one embodiment of the invention
100 appearance diagram, Fig. 2 are painted the decomposition diagram of the safeguard structure 100 of the inhibition battery thermal runaway of Fig. 1, and Fig. 3 is painted
The schematic diagram that the safeguard structure 100 of the inhibition battery thermal runaway of Fig. 2 is watched by downwards angle of visibility, Fig. 4 are painted battery and are set to suppression
Schematic diagram in the safeguard structure 100 of battery thermal runaway processed, Fig. 5 are painted the safeguard structure of the inhibition battery thermal runaway of Fig. 1
100 along A-A hatchings diagrammatic cross-section and partial enlarged view, wherein battery is represented by dotted lines.It is real according to the present invention one
The safeguard structure 100 for applying the inhibition battery thermal runaway of tool fire extinguishing effect of example includes upper cover 110, lower cover 120, at least one electricity
Pond core separator 130 and at least one fire extinguishing material 140.Upper cover 110 is combined with lower cover 120 in upper cover 110 and lower cover
Accommodating space is formed between 120, so that multiple batteries 20 can be placed between upper cover 110 and lower cover 120.The present embodiment
In, battery 20 can be connected to circuit board 30 by conducting wire (figure be not painted), and battery 20 can be controlled via circuit board 300 and
Charge or discharge.It is painted five battery separators 130, collocation upper cover 110 and lower cover 120 in the present embodiment and six can be stored
Battery 20, but also can suitably adjust the quantity of battery 20 and battery separator 130.
For convenience of description, Fig. 2 and Fig. 3 is only painted wherein two groups of (one group of fire extinguishing materials being located above of fire extinguishing material 140
140 and underlying one group of fire extinguishing material 140), and the following contents is only with adjacent the of this corresponding two groups of fire extinguishing materials 140
One battery 21 and the second battery 22 and the battery point between the first battery 21 and the second battery 22
Spacing body 130 illustrates that rest part illustrates to omit for representative.
Fig. 2, Fig. 3 and Fig. 4 are please referred to, battery separator 130 is set between upper cover 110 and lower cover 120, and battery
Separator 130 has the first holding part 131 and the second holding part 132.First holding part 131 is adjacent to upper cover 110 and is located at first
Between battery 21 and the second battery 22.Second holding part 132 is adjacent to lower cover 120 and positioned at the first battery 21 and the second electricity
Between pond core 22.
In one embodiment, the first holding part 131 includes the multiple first sub- holding parts 1311, and along straight line, (i.e. first holds
It is set 131 long axis of portion, parallel with 21 long axis of the first battery) sequential between the first battery 21 and the second battery 22,
And first sub- holding part 1311 be separated by each other with first partition 1312.First partition 1312 can reinforce battery separator 130
Structural strength, and enable be located at the first sub- holding part 1311 in fire extinguishing material 140 be segmented disengage.In addition, the second holding part
132 include the multiple second sub- holding parts 1321, and along straight line, (i.e. 132 long axis of the second holding part is put down with 22 long axis of the second battery
Row) sequential is between the first battery 21 and the second battery 22, and the second sub- holding part 1321 is each other with second partition
1322 are separated by.Second partition 1322 can reinforce the structural strength of battery separator 130, and make to be located at the second sub- holding part
Fire extinguishing material 140 in 1321, which can be segmented, to be disengaged.
Fig. 5 is please referred to, after safeguard structure 100 is combined with multiple batteries 20, fire extinguishing material 140 can be inserted and is sealed in
In first holding part 131 and the second holding part 132, and material 140 of putting out a fire does not connect with the first battery 21 and the second battery 22
It touches.Under normal usage, the temperature of the first battery 21 and the second battery 22 may remain in predetermined work temperature it
Under, it will not catching fire.When the first battery 21 and 22 thermal runaway of the second battery are more than critical-temperature, inside battery
Localized hyperthermia may be will produce and catching fire.
When 21 catching fire of the first battery keeps the first adjacent holding part 131 and/or 132 temperature of the second holding part super
When crossing the critical-temperature of the material of battery separator 130, the first holding part 131 and/or the second holding part 132 deform it is damaged and
It discharges fire extinguishing material 140 and the first battery 21 is made to stop burning, and then protect the second battery 22.
The critical-temperature of battery separator 130 is, for example, fusing point, when ignition temperature is molten higher than battery separator 130
When point, battery separator 130 can be melted and deform breakage.
That is, when the temperature of battery is under normal working temperature, battery surface temperature is less than battery
The critical-temperature of separator 130,130 structure of battery separator keep complete, and therefore, the first holding part 131 and second is accommodating
Fire extinguishing material 140 in portion 132 will not be released, however, when thermal runaway and catching fire occur for battery, flame temperature is super
The critical-temperature of battery separator 130 is crossed, battery separator 130 melts breakage, disengages the first holding part 131 and second appearance
Set the fire extinguishing material 140 in portion 132, and material 140 of putting out a fire be released after can be covered in the first battery 21 of catching fire
Barrier property gas is gone up and generates, with blocking oxygen, to prevent the first battery 21 from burning away.
In one embodiment, when 21 catching fire of the first battery, and flame temperature is more than facing for battery separator 130
When boundary's temperature, such as more than 200~300 degree, the 1311 or the second sub- holding part of the first sub- holding part close to catching fire position
1321 first can deform damaged and discharge fire extinguishing material 140 therein；If the first battery 21 not therefore and stop burning and after
When the burning that renews, then the fire extinguishing material 140 in the sub- holding part of other positions can be released sequentially again, and make the first battery 21
It can be controlled the intensity of a fire by the fire extinguishing material 140 that segmentation disengages and prolong burning, and then protect the second battery 22.
Fig. 5 is please referred to, in one embodiment, the first battery 21 and the second battery 22 are for example respectively provided with periphery
23, battery separator 130 is set between the first battery 21 and the second battery 22, and battery separator 130 or so two
Opposite side is respectively provided with the first battery periphery clad structure 133 and the second battery periphery clad structure 134,
Respectively to cover the periphery 23 of the first battery 21 and the second battery 22, and the first battery periphery coats
Structure 133 and the second battery periphery clad structure 134 are separated between the first battery 21 and the second battery 22.
In one embodiment, the first holding part 131 can be located at first the 133, second electricity of battery periphery clad structure
In the triangular space (referring to Fig. 5) that pond core periphery clad structure 134 and upper cover 110 are surrounded, the second holding part 132 can position
It is surrounded in the first battery periphery clad structure 133, the second battery periphery clad structure 134 and lower cover 120
Triangular space (referring to Fig. 5) in.Therefore, fire extinguishing material 140, Bu Huizeng can be inserted in the existing existing space of battery module
Add the overall dimensions of battery module.Other than triangular space, the accommodating space of other shapes or change case is also applicable in this reality
In the safeguard structure for applying example.
In addition, Fig. 2 and Fig. 5 are please referred to, in one embodiment, when fire extinguishing material 140 fills in the first holding part 131
When, the first film layer 151 can be also covered in the top of fire extinguishing material 140, and can impose hot pressing to the first film layer 151, by first
Film layer 151 is bonded on the top surface of battery separator 130.Fig. 3 and Fig. 5 are please referred to, when fire extinguishing material 140 fills in the second appearance
After setting in portion 132, the second film layer 152 can be also covered, and hot pressing can be imposed to the second film layer 152, the second film layer 152 is fixed
In on the bottom surface of battery separator 130.In this way, the material 140 that can will put out a fire by the first film layer 151 and the second film layer 152
It is respectively sealed in the first holding part 131 and the second holding part 132.First film layer 151 and the second film layer 152 can be non-conductive
Macromolecule membrane, such as wheat draw the resin material of (Mylar) etc.
In one embodiment, fire extinguishing material 140 is, for example, the chemicals institute groups such as potassium compound, sodium compound and ammonium compounds
At medicament, wherein potassium compound be for example weight percentage (wt%) be 25%-35% potassium carbonate (K2CO3), sodium compound
Such as sodium bicarbonate (the NaHCO that (wt%) is 4%-8% that is weight percentage3) and weight percent (wt%) be 2%-
6% sodium tungstate (Na2WO4·2H2O), ammonium compounds be for example weight percentage (wt%) be 47% about saturation capacity chlorination
Ammonium (NH4Cl) and weight percent (wt%) be 8%-14% diammonium hydrogen phosphate [(NH4)2HPO4].Above-mentioned chemicals composition
Medicament dissolve in about 2.8-3.0 times of water, the fire extinguishing liquor than weighing about 1.20-1.30 is made.
When the first 21 catching fire of battery, going out in damaged the first holding part 131 or the second holding part 132 is deformed
Fiery material 140 is released, and generates fierce thermal response as ignition temperature rises, and then generates ammonia, nitrogen, titanium dioxide
At least one of barrier property gas in carbon and vapor etc. makes the first battery to exclude the oxygen in air rapidly
21 because anoxic stops burning, and then the intensity of a fire is inhibited to diffuse to the second battery 22.Meanwhile not becoming after the reaction of material 140 of putting out a fire
Chloride, the phosphate etc. that gas is exhaled and be left behind are covered in the first battery 21, can prevent the first battery
21 resume combustion again.
The protection knot of the inhibition battery thermal runaway of effect in conclusion the tool disclosed by the above embodiment of the present invention is put out a fire
Structure, inside include fire extinguishing material, when battery catching fire, can effectively put out a fire, and then prevent battery from prolonging burning.This
Outside, battery spacing is not required to increase, so that the external form of entire battery module is more light and handy, and is suitble to mass production, to improve production
Amount.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
It is changed and retouched made by range, belongs to the scope of patent protection of the present invention.
Claims (11)
1. a kind of safeguard structure of the inhibition battery thermal runaway of tool fire extinguishing effect, to accommodating first battery and the second battery
Core, which is characterized in that the safeguard structure includes：
Upper cover；
Lower cover is combined with the upper cover；
Battery separator is set between the upper cover and the lower cover, which has the first holding part and second
Holding part, for first holding part adjacent to the upper cover and between first battery and second battery, this is second accommodating
Portion is adjacent to the lower cover and between first battery and second battery, and the material of the battery separator is with critical
Temperature；And
Fire extinguishing material, inserts and is sealed in first holding part and second holding part；
Wherein, when the temperature of the first battery catching fire and flame is more than the critical-temperature, first holding part and/or should
The deformation of second holding part is damaged and discharges the fire extinguishing material and first battery is made to stop burning, and then protects second battery
Core.
2. safeguard structure as described in claim 1, which is characterized in that first battery is respectively provided with second battery
Periphery, the battery separator two opposite sides are respectively provided with the first battery periphery clad structure and the second battery
Core periphery clad structure, the first battery periphery clad structure and the second battery periphery clad structure
It is separated between first battery and second battery, wherein first holding part is located at the first battery cylinder table
In the triangular space that face clad structure, the second battery periphery clad structure and the upper cover are surrounded, this is second accommodating
Portion is located at the first battery periphery clad structure, the second battery periphery clad structure and the lower cover and is surrounded
Triangular space in.
3. safeguard structure as described in claim 1, which is characterized in that first holding part includes the multiple first sub- holding parts,
Multiple first sub- holding part along straight line sequential between first battery and second battery, and each other with
One partition board is separated by.
4. safeguard structure as described in claim 1, which is characterized in that second holding part includes the multiple second sub- holding parts,
Multiple second sub- holding part along straight line sequential between first battery and second battery, and each other with
Two partition boards are separated by.
5. safeguard structure as described in claim 1, which is characterized in that further include the first film layer and the second film layer, this first
Film layer and second film layer are covered each by the top of the fire extinguishing material in first holding part and second holding part.
6. safeguard structure as described in claim 1, which is characterized in that the fire extinguishing material heat reacts and generates barrier property gas
Body, with the oxygen in air-isolation.
7. safeguard structure as claimed in claim 6, which is characterized in that the barrier property gas includes carbon dioxide, nitrogen, ammonia
With at least one in vapor.
8. safeguard structure as described in claim 1, which is characterized in that the weight percent of diammonium hydrogen phosphate in the fire extinguishing material
Between 8%~14%.
9. safeguard structure as described in claim 1, which is characterized in that in the fire extinguishing material weight percent of potassium carbonate between
Between 25%~35%.
10. safeguard structure as described in claim 1, which is characterized in that the weight percent of sodium bicarbonate in the fire extinguishing material
Between 4%~8%.
11. safeguard structure as described in claim 1, which is characterized in that the weight percent of sodium tungstate is situated between in the fire extinguishing material
Between 2%~6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318642.4A CN108767146B (en) | 2018-04-11 | 2018-04-11 | Protective structure with fire extinguishing function for inhibiting thermal runaway of battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318642.4A CN108767146B (en) | 2018-04-11 | 2018-04-11 | Protective structure with fire extinguishing function for inhibiting thermal runaway of battery core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108767146A true CN108767146A (en) | 2018-11-06 |
| CN108767146B CN108767146B (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810318642.4A Active CN108767146B (en) | 2018-04-11 | 2018-04-11 | Protective structure with fire extinguishing function for inhibiting thermal runaway of battery core |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023180989A1 (en) * | 2022-03-25 | 2023-09-28 | Tyco Fire Products Lp | Firefighting agent stored in batteries |
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| CN206558651U (en) * | 2017-03-15 | 2017-10-13 | 华霆（合肥）动力技术有限公司 | Radiate fire-retarding device and battery modules |
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