CN106784567A - Prevent the power supply and electric power system of battery thermal runaway - Google Patents
Prevent the power supply and electric power system of battery thermal runaway Download PDFInfo
- Publication number
- CN106784567A CN106784567A CN201710033075.3A CN201710033075A CN106784567A CN 106784567 A CN106784567 A CN 106784567A CN 201710033075 A CN201710033075 A CN 201710033075A CN 106784567 A CN106784567 A CN 106784567A
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- Prior art keywords
- collector plate
- negative
- positive
- battery cell
- power supply
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- Granted
Links
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 10
- 239000011810 insulating material Substances 0.000 description 10
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
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- 238000004519 manufacturing process Methods 0.000 description 3
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- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HKTCLPBBJDIBGF-UHFFFAOYSA-N 1-phenyl-2-propan-2-ylbenzene Chemical group CC(C)C1=CC=CC=C1C1=CC=CC=C1 HKTCLPBBJDIBGF-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
- H01M50/581—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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
-
- 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
Abstract
The present invention provides a kind of power supply and electric power system for preventing battery thermal runaway.The power supply includes multiple battery cells and afflux board component.The afflux board component includes positive collector plate and negative collector plate, and the multiple battery cell is set in parallel between the negative collector plate and positive collector plate, and insulating part is respectively arranged with the positive collector plate and negative collector plate.The negative collector plate is electrically connected with the negative pole of the multiple battery cell by negative pole connecting plate.The positive collector plate passes through multiple positive pole connectors and is electrically connected with the positive pole of the multiple battery cell.Thus, even if when certain battery cell occurs thermal run away, the battery cell of the thermal run away will not be turned on periphery battery cell and positive and negative electrode collector plate, and then avoid the generation of second short circuit, fundamentally inhibit the propagation of thermal runaway.
Description
Technical field
The present invention relates to lithium ion battery protection field, in particular to a kind of power supply for preventing battery thermal runaway and
Electric power system.
Background technology
Using increasingly popularizing, global environmental pollution and oil shortage problem are also increasingly protruded automobile.Due to lithium battery
Have the advantages that small environmental pollution, noiselessness, energy are high, be now widely used, a kind of electricity was especially applied in recent years
Electrical automobile, the main operation principle of the electric automobile is to provide electric energy to motor by lithium battery, and drive motor is operated, so that
Automobile is promoted to advance.
Under charge and discharge use, the electrochemical reaction that inside battery occurs can produce heat to lithium battery, when battery cell is received
When external force extruding, puncture and generation internal short-circuit, lithium battery interior heating can be aggravated, and produce high-temperature gas, easily occurred quick-fried
The accident such as fry, catch fire.If not adopting appropriate measures, when one of battery cell occurs thermal run away, can involve neighbouring
Other battery cells, cause thermal runaway to be propagated, and trigger bigger accident.
Battery pack used in everyday is made up of the battery cell of multiple rows of multiple row, and short-circuit guarantor is not provided with usual battery cell
Protection unit, security reliability is poor.When electrolyte and high-temperature gas in a certain battery cell occur quick-fried spray, due to the battery cell
Deformation and cause the battery cell and both positive and negative polarity collector plate to turn on so that whole battery pack is short-circuited, and lasting short circuit can make
The battery cell of thermal run away and the temperature of periphery battery cell steeply rise, and trigger thermal runaway to spread.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the technical problems to be solved by the invention to be to provide one kind and prevent electricity
The power supply and electric power system of pond thermal runaway, it, by short-circuit protection, can make hot mistake when certain battery cell occurs thermal run away
Steady battery cell will not be turned on periphery battery cell and positive and negative electrode collector plate, and then avoid the generation of second short circuit,
Fundamentally inhibit the propagation of thermal runaway.
Present pre-ferred embodiments provide a kind of power supply for preventing battery thermal runaway, and the power supply includes multiple battery cells
And afflux board component, wherein：
The afflux board component includes positive collector plate and negative collector plate, and the multiple battery cell is set in parallel in described negative
Between collector plate and positive collector plate, insulating part is respectively arranged with the positive collector plate and negative collector plate；
The negative collector plate is electrically connected with the negative pole of the multiple battery cell by negative pole connecting plate；
The positive collector plate passes through multiple positive pole connectors and is electrically connected with the positive pole of the multiple battery cell.
In present pre-ferred embodiments, the insulating part include insulating barrier, the insulating barrier be respectively arranged at it is described just
In collector plate and negative collector plate, wherein：
The insulating barrier of the positive collector plate is arranged at the positive collector plate on the surface of battery cell side；
The insulating barrier of the negative collector plate be arranged at the negative collector plate away from the surface of battery cell side or
Born described in person in collector plate both side surface and be provided with the insulating barrier.
In present pre-ferred embodiments, the insulating part also includes being used for by the insulating barrier and the positive collector plate,
And the insulating fixing piece that the insulating barrier is reinforced respectively with the negative collector plate, wherein：
Multiple being used for the electricity is offered in the insulating fixing piece for reinforcing the positive collector plate and the insulating barrier
The first projecting apertures that the positive pole of pond monomer exposes, the quantity that first projecting apertures is opened up is identical with the quantity of the battery cell；
Multiple being used for the electricity is offered in the insulating fixing piece for reinforcing the negative collector plate and the insulating barrier
The second projecting apertures that the negative pole of pond monomer exposes, the quantity that second projecting apertures is opened up is identical with the quantity of the battery cell.
In present pre-ferred embodiments, multiple being used for the multiple battery cell is offered in the positive collector plate
The first through hole that positive pole exposes, the quantity and position that the first through hole is opened up matches with first projecting apertures.
In present pre-ferred embodiments, multiple being used for the multiple battery cell is offered in the negative collector plate
The second through hole that negative pole exposes, the quantity and position that second through hole is opened up matches with second projecting apertures.
In present pre-ferred embodiments, the negative pole connecting plate includes multiple anode connectors, and multiple negative poles connect
The quantity and position of quantity that fitting is set and multiple described second through hole opened up in position and the negative collector plate match.
In present pre-ferred embodiments, the anode connector is described including negative pole body, negative electrode lug and for connecting
The fuse member of negative pole body and negative electrode lug, the negative electrode lug is electrically connected with the negative pole of the battery cell, the negative pole body
It is fixedly connected with the negative collector plate.
In present pre-ferred embodiments, the anode connector is planar spiral structures.
In present pre-ferred embodiments, the positive pole connector is laminated structure, and the positive pole connector includes positive pole
Body, anode ear and the fuse link for connecting the positive pole body and anode ear, the anode ear and the battery cell
Positive pole is electrically connected with, and the positive pole body is fixedly connected with the positive collector plate.
Present pre-ferred embodiments also provide a kind of electric power system, and the electric power system includes preventing for above-mentioned any one
The power supply of battery thermal runaway.
In terms of existing technologies, the present invention provide the power supply and electric power system that prevent battery thermal runaway, with
Lower beneficial effect：
The power supply includes multiple battery cells and afflux board component.The afflux board component includes positive collector plate and negative collection
Stream plate, the multiple battery cell is set in parallel between the negative collector plate and positive collector plate, the positive collector plate and negative collection
Insulating part is respectively arranged with stream plate.The negative collector plate is electrical by negative pole connecting plate with the negative pole of the multiple battery cell
Connection.The positive collector plate passes through multiple positive pole connectors and is electrically connected with the positive pole of the multiple battery cell.Thus, even if
When certain battery cell occurs thermal run away, the battery cell of the thermal run away will not be with periphery battery cell and positive and negative electrode afflux
Plate is turned on, and then avoids the generation of second short circuit, fundamentally inhibits the propagation of thermal runaway.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation of the power supply for preventing battery thermal runaway that Fig. 1 is provided for present pre-ferred embodiments.
The structural representation of the single battery monomer shown in Fig. 1 that Fig. 2 is provided for present pre-ferred embodiments.
The structural representation of the negative pole connecting plate shown in Fig. 1 that Fig. 3 is provided for present pre-ferred embodiments.
The structural representation of the anode connector shown in Fig. 3 that Fig. 4 is provided for present pre-ferred embodiments.
The structural representation of the positive pole connector shown in Fig. 1 that Fig. 5 is provided for present pre-ferred embodiments.
Icon：100- battery cells；110- positive poles；120- negative poles；200- afflux board components；The positive collector plates of 210-；212-
First through hole；220- bears collector plate；The through holes of 222- second；300- insulating parts；310- insulating barriers；320- insulating fixing pieces；321-
First projecting apertures；The projecting apertures of 323- second；400- negative pole connecting plates；410- anode connectors；412- negative pole bodies；414- negative electrode lugs；
416- fuse members；500- positive pole connectors；510- positive pole bodies；512- anode ears；514- fuse links.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, without
Be indicate or imply meaning power supply or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that to be limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
Additionally, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
Can be to be slightly tilted.It is not the expression structure if " level " refers to only its direction with respect to more level for " vertical "
Must be fully horizontal, and can be to be slightly tilted.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to indirect by intermediary
It is connected, can is two connections of element internal.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Refer to Fig. 1, the structural representation of the power supply for preventing battery thermal runaway that Fig. 1 is provided for present pre-ferred embodiments
Figure.The power supply for preventing battery thermal runaway includes that multiple battery cells 100, afflux board component 200, insulating part 300, negative pole connect
Fishplate bar 400 and positive pole connector 500.
In the present embodiment, the afflux board component 200 includes positive collector plate 210 and negative collector plate 220, the multiple electricity
Pond monomer 100 is set in parallel between the negative collector plate 220 and positive collector plate 210, the positive collector plate 210 and negative collector plate
Insulating part 300 is respectively arranged with 220.The negative collector plate 220 passes through negative pole connecting plate with the multiple battery cell 100
400 are electrically connected with.The positive collector plate 210 passes through multiple positive pole connectors 500 and electrically connects with the multiple battery cell 100
Connect.
Refer to single battery monomer 100 shown in Fig. 1 that Fig. 1 and Fig. 2, Fig. 2 are provided for present pre-ferred embodiments
Structural representation.In the present embodiment, battery cell 100 includes positive pole 110 and negative pole 120.Specifically, the negative collector plate
220 are electrically connected with the negative pole 120 of the multiple battery cell 100 by negative pole connecting plate 400.The positive collector plate 210 with
The positive pole 110 of the multiple battery cell 100 passes through multiple positive pole connectors 500 and is electrically connected with.
Referring to Fig. 2, in the present embodiment, the insulating part 300 includes insulating barrier 310,310 points of the insulating barrier
It is not arranged in the positive collector plate 210 and negative collector plate 220, wherein：
The insulating barrier 310 of the positive collector plate 210 may be disposed at the positive collector plate 210 near battery cell 100
On the surface of side.
The insulating barrier 310 of the negative collector plate 220 may be disposed at the negative collector plate 220 away from battery cell 100
The insulating barrier 310 is provided with the surface of side or in the both side surface of negative collector plate 220.Wherein, using negative collection
The effect that the mode that the stream both side surface of plate 220 is respectively provided with the insulating barrier 310 is reached is more excellent.
In the present embodiment, the set-up mode of the insulating barrier 310 may be, but not limited to, and be smeared using insulating materials
On the relevant position that the afflux board component 200 sets insulating barrier 310, the insulating barrier 310 is pasted using adhesive parts
The afflux board component 200 is set on the relevant position of insulating barrier 310.
The insulating materials has many types, can divide gas, liquid, solid three major types.Conventional gas insulating material has
Air, nitrogen, sulfur hexafluoride etc..Liquid insulating material mainly have mineral insulating oil, synthetic insulating oil (silicone oil, detergent alkylate,
Polyisobutene, isopropyl biphenyl, diarylethane etc.) two classes.Solid insulating material can be divided to organic and inorganic two class.In this implementation
In example, the insulating materials for manufacturing the insulating barrier 310 preferably uses inoganic solids insulating materials, may be, but not limited to, by cloud
The inoganic solids insulating materials that mother, glass, ceramics and their mixture are made, is made up of silicon, boron and Multimetal oxide
Inoganic solids insulating materials.Inoganic solids insulating materials is mainly based on ionic structure, and heat resistance is high, good stability,
There are preferable resistance to weathering, chemical proofing and the long-term corrosion resistance under electric field action.
In the present embodiment, the insulating part 300 also include be used for by the insulating barrier 310 and the positive collector plate 210,
And the insulating fixing piece 320 that the insulating barrier 310 is reinforced respectively with the negative collector plate 220, wherein：
Offering multiple in the insulating fixing piece 320 for reinforcing the positive collector plate 210 and the insulating barrier 310 is used for
The first projecting apertures 321 that the positive pole 110 of the battery cell 100 is exposed, the quantity that first projecting apertures 321 is opened up and the electricity
The quantity of pond monomer 100 is identical.
Offering multiple in the insulating fixing piece 320 for reinforcing the negative collector plate 220 and the insulating barrier 310 is used for
The second projecting apertures 323 that the negative pole 120 of the battery cell 100 is exposed, the quantity that second projecting apertures 323 is opened up and the electricity
The quantity of pond monomer 100 is identical.
In the present embodiment, the material for manufacturing the insulating fixing piece 320 preferably uses ABS plastic (Acrylonitrile
Butadiene Styrene plastic), the chemical name of ABS plastic is acrylonitrile-butadiene-styrene copolymer
(Acrylonitrile Butadiene Styrene copolymer, abbreviation ABS), is by acrylonitrile, butadiene and styrene
The terpolymer of composition.ABS is usually light yellow or milky pellet non-crystalline resin, is most popular engineering
One of plastics.ABS resin is one of five big synthetic resin, its impact resistance, heat resistance, lower temperature resistance, chemical proofing and
Excellent electrical properties, also with easy processing, product size stabilization, lustrous surface is good the features such as, easy application, coloring may be used also
To carry out the secondary operation such as surface metallization, plating, welding, hot pressing and bonding, it is widely used in machinery, automobile, electronics electricity
The industrial circles such as device, instrument and meter, weaving and building, are a kind of extremely wide thermoplastic engineering plastics of purposes.
In the present embodiment, by setting insulating barrier 310 and insulating fixing piece 320 on the surface of afflux board component 200,
Duplicate protection to battery cell 100 and afflux board component 200, reinforced insulation and impact resistance are realized with this.Even if, in electricity
When the generation internal short-circuit of pond monomer 100 causes thermal run away, the battery cell 100 of the thermal run away also will not be with periphery battery cell
100 and afflux board component 200 turn on, it is to avoid the generation of second short circuit and thermal runaway diffusion.
Referring to Fig. 1 and Fig. 2, in the present embodiment, offered in the positive collector plate 210 multiple for by described in
The first through hole 212 that the positive pole 110 of multiple battery cells 100 exposes, quantity and position and institute that the first through hole 212 is opened up
The first projecting apertures 321 is stated to match.
Offered in the negative collector plate 220 it is multiple for the negative pole 120 of the multiple battery cell 100 to be exposed the
Two through holes 222, the quantity and position that second through hole 222 is opened up matches with second projecting apertures 323.
Fig. 3 is referred to, the structural representation of the negative pole connecting plate 400 shown in Fig. 1 that Fig. 3 is provided for present pre-ferred embodiments
Figure.In the present embodiment, the negative pole connecting plate 400 includes multiple anode connectors 410 and multiple air vents for divulging information.
Multiple described second opened up in quantity that multiple anode connectors 410 are set and position and the negative collector plate 220 is logical
The quantity in hole 222 and position match.
Fig. 4 is referred to, the structural representation of the anode connector 410 shown in Fig. 3 that Fig. 4 is provided for present pre-ferred embodiments
Figure.In the present embodiment, the anode connector 410 includes negative pole body 412, negative electrode lug 414 and for connecting the negative pole
The fuse member 416 of body 412 and negative electrode lug 414.The negative electrode lug 414 electrically connects with the negative pole 120 of the battery cell 100
Connect, the negative pole body 412 is fixedly connected with the negative collector plate 220.
In the present embodiment, the material for manufacturing the fuse member 416 may be, but not limited to, aluminum material, nickel saw lumber
The materials with fusible such as material, plating nickel material.The negative pole body 412 is with the negative collector plate 220 preferably using weldering
The mode for connecing is fixedly connected.
In the present embodiment, the anode connector 410 preferably uses planar spiral structure.
Fig. 5 is referred to, the structural representation of the positive pole connector 500 shown in Fig. 1 that Fig. 5 is provided for present pre-ferred embodiments
Figure.In the present embodiment, the positive pole connector 500 be laminated structure, the positive pole connector 500 include positive pole body 510,
Anode ear 512 and the fuse link 514 for connecting the positive pole body 510 and anode ear 512.The anode ear 512 with it is described
The positive pole 110 of battery cell 100 is electrically connected with, and the positive pole body 510 is fixedly connected with the positive collector plate 210.
In the present embodiment, fuse link 514 is preferably manufactured using aluminum slice.The positive pole body 510 and the positive afflux
Plate 210 is preferably fixedly connected by the way of welding.
In the present embodiment, the fuse member 416 and positive pole connector 500 for being set on the anode connector 410
The fuse link 514 of upper setting, equivalent to the effect of fuse.When electric current exceedes the maximum current-carrying of design, or battery cell 100
Temperature is too high, and during more than design temperature, fuse member 416 and fuse link 514 can fuse moment, so as to protect lithium battery, it is to avoid
The generation of dangerous situation such as catch fire, explode.Fuse member 416 and fuse link 514, on the one hand can play the effect of flexible connection,
It is more safe and reliable；On the other hand rated current can be combined and the conversion relation of material cross-section is designed, can melted in time
It is disconnected, play protective effect.
The embodiment of the present invention additionally provides a kind of electric power system, and the electric power system prevents battery thermal runaway including above-mentioned
Power supply.
In sum, the present invention is provided the power supply and electric power system that prevent battery thermal runaway.The power supply includes multiple
Battery cell and afflux board component.The afflux board component includes positive collector plate and negative collector plate, and the multiple battery cell is put down
Row is arranged between the negative collector plate and positive collector plate, and insulating part is respectively arranged with the positive collector plate and negative collector plate.
The negative collector plate is electrically connected with the negative pole of the multiple battery cell by negative pole connecting plate.The positive collector plate with it is described
The positive pole of multiple battery cells passes through multiple positive pole connectors and is electrically connected with.Thus, the insulating barrier that is included by insulating part and absolutely
Edge fixture double insulation protection, and fuse member, fuse link fuse protection, when battery cell short circuit occurred inside, electricity
Flow through big, temperature excessively high thermal run away situation when, the battery cell of the thermal run away will not be with periphery battery cell and positive and negative electrode collection
Stream plate is turned on, and then avoids the generation of second short circuit, fundamentally inhibits the propagation of thermal runaway, it is to avoid to lithium battery
The influence that performance is produced, prevents the dangerous situations such as high temperature or burning from occurring.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of power supply for preventing battery thermal runaway, the power supply includes multiple battery cells and afflux board component, and its feature exists
In：
The afflux board component includes positive collector plate and negative collector plate, and the multiple battery cell is set in parallel in the negative afflux
Between plate and positive collector plate, insulating part is respectively arranged with the positive collector plate and negative collector plate；
The negative collector plate is electrically connected with the negative pole of the multiple battery cell by negative pole connecting plate；
The positive collector plate passes through multiple positive pole connectors and is electrically connected with the positive pole of the multiple battery cell.
2. power supply according to claim 1, it is characterised in that the insulating part includes insulating barrier, the insulating barrier difference
It is arranged in the positive collector plate and negative collector plate, wherein：
The insulating barrier of the positive collector plate is arranged at the positive collector plate on the surface of battery cell side；
The insulating barrier of the negative collector plate is arranged at the negative collector plate away from the surface of battery cell side or institute
State and be provided with the insulating barrier in negative collector plate both side surface.
3. power supply according to claim 2, it is characterised in that the insulating part also includes being used for the insulating barrier and institute
Positive collector plate, and the insulating fixing piece that the insulating barrier is reinforced respectively with the negative collector plate are stated, wherein：
Multiple being used for the battery list is offered in the insulating fixing piece for reinforcing the positive collector plate and the insulating barrier
The first projecting apertures that the positive pole of body exposes, the quantity that first projecting apertures is opened up is identical with the quantity of the battery cell；
Multiple being used for the battery list is offered in the insulating fixing piece for reinforcing the negative collector plate and the insulating barrier
The second projecting apertures that the negative pole of body exposes, the quantity that second projecting apertures is opened up is identical with the quantity of the battery cell.
4. power supply according to claim 3, it is characterised in that offered in the positive collector plate multiple for will be described many
The first through hole that the positive pole of individual battery cell exposes, quantity and position and the first projecting apertures phase that the first through hole is opened up
Match somebody with somebody.
5. power supply according to claim 3, it is characterised in that offered in the negative collector plate multiple for will be described many
The second through hole that the negative pole of individual battery cell exposes, quantity and position and the second projecting apertures phase that second through hole is opened up
Match somebody with somebody.
6. power supply according to claim 5, it is characterised in that the negative pole connecting plate includes multiple anode connectors, many
The quantity of multiple described second through hole opened up in quantity that the individual anode connector is set and position and the negative collector plate
And position matches.
7. power supply according to claim 6, it is characterised in that the anode connector include negative pole body, negative electrode lug and
Fuse member for connecting the negative pole body and negative electrode lug, the negative electrode lug is electrically connected with the negative pole of the battery cell,
The negative pole body is fixedly connected with the negative collector plate.
8. the power supply according to claim 7, it is characterised in that the anode connector is planar spiral structures.
9. power supply according to claim 1, it is characterised in that the positive pole connector is laminated structure, the positive pole connects
Fitting includes positive pole body, anode ear and the fuse link for connecting the positive pole body and anode ear, the anode ear and institute
The positive pole for stating battery cell is electrically connected with, and the positive pole body is fixedly connected with the positive collector plate.
10. a kind of electric power system, it is characterised in that the electric power system includes anti-described in any one in claim 1-9
The only power supply of battery thermal runaway.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710033075.3A CN106784567B (en) | 2017-01-18 | 2017-01-18 | Power supply and power supply system for preventing battery thermal runaway |
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| CN201710033075.3A CN106784567B (en) | 2017-01-18 | 2017-01-18 | Power supply and power supply system for preventing battery thermal runaway |
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| CN106784567A true CN106784567A (en) | 2017-05-31 |
| CN106784567B CN106784567B (en) | 2024-03-12 |
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| CN106784567B (en) | 2024-03-12 |
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Address after: 230601 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Applicant after: Huating (Hefei) Power Technology Co.,Ltd. Address before: 230000 No. 26, No. 5, Tsing Luen Road, Hefei economic and Technological Development Zone, Anhui Applicant before: Huating (Hefei) Power Technology Co.,Ltd. |
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