CN104953083A - Battery cell structure capable of preventing battery fire explosion and lithium ion battery adopting battery cell structure - Google Patents
Battery cell structure capable of preventing battery fire explosion and lithium ion battery adopting battery cell structure Download PDFInfo
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- CN104953083A CN104953083A CN201510305506.8A CN201510305506A CN104953083A CN 104953083 A CN104953083 A CN 104953083A CN 201510305506 A CN201510305506 A CN 201510305506A CN 104953083 A CN104953083 A CN 104953083A
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a battery cell structure capable of preventing battery fire explosion. The battery cell structure comprises a battery cell body and a battery cell shell, wherein the external part of a battery cell body is coated with a high-temperature self-cracking sealing device, a damping device is arranged on the inner side of a battery cell shell, and a cavity is formed between the damping device and the sealing device and filled with extinguish materials. The invention further discloses a lithium ion battery adopting the battery cell structure. The battery cell structure capable of preventing battery fire explosion and the lithium ion battery adopting the battery cell structure have the advantages that the design is simple, outline shape forming and demoulding are simple and easy; the fire explosion prevention performance is good, compared with a similar battery structure, the structure has the advantages that the materials cost is lower, the safety is improved from 0% to 99% or above, high safety and reliability in use are realized, and the structure can be widely applied to the fields of transportation power (electric bicycles, electric-motorbikes and electric vehicles), energy storage, spaceflight, and emergency communication power supply and the like.
Description
Technical field
The present invention relates to technical field of lithium ion, especially relate to a kind of core strueture preventing battery catches fire from exploding and the lithium ion battery with this core strueture.
Background technology
Because non-renewable energy resources crisis and environmental pollution are serious, accelerate the development of environmental protection high performance lithium ion battery, application extends to the fields such as traffic power, energy storage, space flight, communication spare power supplies by digital product field; Also develop into even thousands of ampere-hour up to a hundred by original hundreds of MAH to the demand of lithium ion battery, due to the lifting of capacity, safety factor will be difficult to control more, and present high-capacity lithium ion cell fail safe is the problem of numerous enterprises research.
Chinese patent literature (day for announcing: on August 10th, 2011, notification number: CN201927668U) discloses the structure that one prevents lithium ion battery from overcharging, short circuit causes burning, and battery is connected with circuit board, and circuit board has sampling point, and sampling point connects battery; The position be connected with anode end at circuit board positive pole is provided with flame-retardant layer, and the electrode input end of other position except conductive contact, anode one end and circuit board intercepts and opens by flame-retardant layer; Be provided with flame-retardant layer between sampling point and battery, flame-retardant layer is opened intercepting between sampling point and battery; Anode one end is provided with insulated ring.This utility model arranges fire proofing between circuit board electrode input end and anode end, between circuit board sampling point and battery, even if the situations such as battery overcharges, short circuit cause temperature to rise, come because battery and circuit board electrode input end intercept by fire proofing, therefore can prevent circuit board and battery catches fire burning, guarantee battery security; In addition, add an insulated ring in positive pole one end of battery, battery insulation performance can be strengthened further.
Chinese patent literature (the day for announcing: on June 26th, 2013, notification number: CN203026604U) disclose a kind of core strueture of soft package lithium battery, comprise negative plate, barrier film and positive plate, positive plate and negative plate are equipped with lug, negative plate comprises copper foil of affluxion body and is coated with negative electrode active material, bonding agent and the conductive carbon powder on it, and positive plate comprises current collector aluminum foil and is coated with positive active material, bonding agent and the conductive carbon powder on it; Negative plate, barrier film and positive plate are stacked successively and winding forms elementary battery core.This utility model is by reel successively at existing elementary battery core skin copper foil of affluxion body, barrier film and current collector aluminum foil, make single battery core when being subject to acupuncture, the huge heat that battery core inside produces instantaneously prolongs outer copper foil of affluxion body and current collector aluminum foil fast transfer, prevent the inner localized hyperthermia of battery core and the on fire or blast that causes, reach the effect of quick heat radiating during battery core puncture, thus can improve lithium ion battery puncture security performance; This utility model structure is simple in addition, and easily realize, cost is lower.
Chinese patent literature (the day for announcing: on March 17th, 2010, notification number: CN201425957) disclose a kind of flame-retardant anti-explosion device of water-cooling type lithium ion, comprise lithium ion battery, safety valve, lithium ion battery is loaded in the box body that is made up of lower casing, upper cover, at lower casing built with water, soak lithium ion battery.This utility model is rational in infrastructure, lithium ion battery is adopted to the mode of water-cooled, forms explosion-proof dual fail-safe together with safety valve; There is fire-retardant effect simultaneously; Safe and reliable, be applicable in the large-sized battery pack such as automobile batteries.
Summary of the invention
First goal of the invention of the present invention is to solve existing lithium ion battery when internal short-circuit appears in battery or the various undesirable element such as to overcharge, battery causes the problems such as burning, blast because energy can not get release, and provide a kind of can effectively prevent battery core internal short-circuit from causing burning and blast, simplicity of design, contour structures is shaping, depanning is simple and easy, cost is low, the core strueture that what fail safe was high prevent battery catches fire from exploding.
Second goal of the invention of the present invention is to provide a kind of lithium ion battery with the core strueture preventing battery catches fire from exploding.
The present invention realizes the technical scheme that its first technical purpose adopt: a kind of core strueture preventing battery catches fire from exploding, comprise battery core body and battery core housing, the outside of described battery core body is coated with high temperature autoclasis sealing device, described battery core case inside is provided with vibration absorber, be provided with cavity between described vibration absorber and sealing device, described cavity inside is filled with extinguish material.This core strueture preventing battery catches fire from exploding, the sealing device that hermetically sealed parcel design one has high temperature autoclasis function is carried out in the periphery being close to battery core, sealing device has the function of breaking voluntarily when running into high temperature, again battery core case inside is provided with vibration absorber, a cavity is set between vibration absorber and sealing device simultaneously, extinguish material is filled at cavity inside, according to the various characteristics of battery itself, when battery produces potential safety hazard, the temperature of internal battery pack will raise gradually, when temperature is elevated to a certain degree, the full-sealing device being close to battery core body will break voluntarily, extinguish material can penetrate into battery core body surface by gap of breaking, battery pack is lowered the temperature or puts out a fire, thus it is not on fire to control battery pack, do not explode, in order to prevent blast further, by arranging vibration absorber, the impulsive force produced from battery core body interior is carried out release vibration damping.This core strueture preventing battery catches fire from exploding, has simplicity of design, and contour structures is shaping, depanning is simple and easy; Comparing with equal battery structure, material cost is cheaper, and fail safe brings up to more than 99% by 0%.
As preferably, described sealing device be meet high temperature can the polypropylene film of disintegrate, the temperature of described sealing device disintegrate is 80 degree to 120 degree.Sealing device adopt meet high temperature can the polypropylene film of disintegrate, when battery core body interior temperature is elevated to 80 degree, sealing device starts autoclasis, makes battery core body and cavity connects, carries out fire extinguishing cooling by the extinguish material of cavity inside, prevents blast.
As preferably, described vibration absorber is vibration damping shell fragment, and described vibration damping shell fragment is multi-direction staggeredly independently to be arranged.Vibration absorber adopts the multi-direction staggered independent vibration damping shell fragment arranged, such structure is when battery core body surprisingly produces stronger impulsive force, this vibration absorber moves to different directions under the effect of impulsive force, impulsive force is discharged, play damping effect, effectively prevent the blast of battery core, security performance is high.
As preferably, described extinguish material is water, and described cavity inside is provided with multiple separate space by dividing plate, and described separate space inside is respectively arranged with the jet pipe extending to electric core shell external body, and the opening of described jet pipe is arranged on the upper end of battery core housing.As a kind of preferred version, adopt water as extinguish material, now, cavity inside is provided with multiple not connected separate space by dividing plate, separate space inside is provided with jet pipe, the opening of jet pipe is arranged on the upper end of battery core housing, when battery body produces potential safety hazard, the temperature at certain position of battery body can rise, sealing device herein can break in advance, corresponding to the separate space inside at this place water can to electricity ooze body ooze into, if internal pressure continues to rise, the water of this separate space inside upwards can be sprayed by jet pipe under the effect of internal impact pressure, play fire extinguishing function of lowering the temperature from the top down, and the water of other separate space inside, position is not when pressure reaches, can stay separate space inside carries out fire-proof and explosion-proof to this position, the opening of jet pipe can arrange thinner lid, also lid can not be established, so that the water of separate space inside penetrates from opening, fire extinguishing is carried out to whole battery explosion-proof.
Preferred as another kind, described extinguish material is dry powder or sodium acid carbonate.Certain cavity inside also can adopt the extinguish materials such as the gas such as dry powder or sodium acid carbonate or liquid, when battery body produces potential safety hazard, it is explosion-proof that dry powder or sodium acid carbonate directly carry out fire extinguishing to battery core body, coordinates outside vibration absorber effectively to prevent battery catches fire from exploding.
As preferably, described battery core housing is provided with multiple release aperture, described release aperture is provided with air pressure valve.Battery core housing is provided with multiple release aperture, release aperture arranges air pressure valve, when battery produces potential safety hazard, the energy of internal battery pack also effectively can be discharged by release aperture and air pressure valve, thus control further battery pack not on fire, do not explode.Release aperture and air pressure valve can be arranged on the optional position of housing, as long as inside battery energy can be realized to discharge from each dredging hole, prevent battery from causing burning because energy can not get release, exploding.
As preferably, the pore size of described release aperture is 5 ~ 50mm.The pore size of release aperture, effectively to release energy, does not cause battery catches fire to explode and is advisable.
As preferably, battery core housing is the shell of stainless steel case, iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.Battery core housing can adopt the housing of various material, as the shell etc. of stainless steel case, iron-clad, aluminum hull, plastic casing, metal material and plastic material combinations, and the shape of housing is also unrestricted, according to the difference of lithium battery applications scope, and be set to different structure.
The present invention realizes the technical scheme that its second goal of the invention adopt: a kind of lithium ion battery with the core strueture preventing battery catches fire from exploding, core strueture, battery pack and battery interface that this lithium ion battery comprises base, prevents battery catches fire from exploding, the described core strueture preventing battery catches fire from exploding and battery pack and base connect to form lithium ion battery, and described battery interface is connected with the core strueture internal electrical preventing battery catches fire from exploding.This lithium ion battery, adopt the core strueture preventing battery catches fire from exploding, when in use there is internal short-circuit in battery or the various undesirable element such as to overcharge, the temperature of internal battery pack will raise gradually, when temperature is elevated to a certain degree, the full-sealing device being close to battery core body will break automatically, extinguish material penetrates into battery core body surface along with gap of breaking, battery pack is lowered the temperature or puts out a fire, inside battery core shell, be provided with vibration absorber simultaneously, when internal impact power rises, vibration absorber flicks to different directions under the effect of impulsive force, play the effect of release impulsive force, thus play and prevent battery to cause battery core internal short-circuit to cause burning because temperature constantly raises, blast, this lithium ion battery safety performance is high.
As preferably, in the described core strueture preventing battery catches fire from exploding sealing device be meet high temperature can the polypropylene film of disintegrate, the temperature of described sealing device disintegrate is 80 degree to 120 degree; Described vibration absorber is vibration damping shell fragment, the multi-direction staggered independent setting of described vibration damping shell fragment; Described extinguish material is water, and described cavity inside is provided with multiple separate space by dividing plate, and described separate space inside is respectively arranged with the jet pipe extending to electric core shell external body, and the opening of described jet pipe is arranged on the upper end of battery core housing; Or described extinguish material is dry powder or sodium acid carbonate; Described battery core housing is provided with multiple release aperture, described release aperture is provided with air pressure valve, the pore size of described release aperture is 5 ~ 50mm; Housing is the shell of stainless steel case, iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.
The invention has the beneficial effects as follows: this core strueture preventing battery catches fire from exploding and the lithium ion battery with this core strueture, have simplicity of design, contour structures is shaping, depanning is simple and easy; Prevent the performance of blast on fire good, comparing with equal battery structure, material cost is cheaper, fail safe brings up to more than 99% by 0%, safe and reliable, traffic power (electric bicycle, battery-operated motor cycle, electric automobile) can be widely applied to, the fields such as energy storage, space flight, communication spare power supplies.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the core strueture that the present invention prevents battery catches fire from exploding;
Fig. 2 is the another kind of structural representation of the core strueture that the present invention prevents battery catches fire from exploding;
Fig. 3 is a kind of structural representation of the lithium ion battery in the present invention with the core strueture preventing battery catches fire from exploding;
Fig. 4 is the second structural representation of the lithium ion battery in the present invention with the core strueture preventing battery catches fire from exploding;
Fig. 5 is the third structural representation of the lithium ion battery in the present invention with the core strueture preventing battery catches fire from exploding;
In figure: 1, battery core body, 2, battery core housing, 3, sealing device, 4, vibration absorber, 5, cavity, 6 extinguish materials, 7, dividing plate, 8, separate space, 9, jet pipe, 10, release aperture 11, air pressure valve, 12, base, 13, battery pack, 14, battery interface.
Embodiment
Also by reference to the accompanying drawings technical scheme of the present invention is described in further detail below by specific embodiment.
Embodiment 1:
In the embodiment shown in fig. 1, a kind of core strueture preventing battery catches fire from exploding, comprise battery core body 1 and battery core housing 2, the outside of battery core body 1 is coated with high temperature autoclasis sealing device 3, vibration absorber 4 is provided with inside battery core housing 2, be provided with cavity 5 between vibration absorber 4 and sealing device 3, cavity 5 inside is filled with extinguish material 6.Extinguish material 6 is dry powder or sodium acid carbonate.In the present embodiment, extinguish material 6 adopts sodium acid carbonate.
Sealing device 3 be meet high temperature can the polypropylene film of disintegrate, the temperature of sealing device 3 disintegrate is 80 degree to 120 degree.
Vibration absorber 4 is vibration damping shell fragment, the multi-direction staggered independent setting of vibration damping shell fragment.
Battery core housing 2 is provided with multiple release aperture 10, release aperture 10 is provided with air pressure valve 11.The pore size of release aperture 10 is 5 ~ 50mm.
Battery core housing 2 is the shell of stainless steel case, iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.In the present embodiment, battery core housing adopts plastic casing.
A kind of lithium ion battery (see figure 3) with the core strueture preventing battery catches fire from exploding, core strueture, battery pack 13 and battery interface 14 that this lithium ion battery comprises base 12, prevents battery catches fire from exploding, the core strueture preventing battery catches fire from exploding and battery pack 13 and base 12 connect to form lithium ion battery, and battery interface 14 is connected with preventing the core strueture internal electrical of lithium ion battery blast on fire.In the core strueture preventing battery catches fire from exploding sealing device 3 be meet high temperature can the polypropylene film of disintegrate, the temperature of sealing device 3 disintegrate is 80 degree to 120 degree; Vibration absorber 4 is vibration damping shell fragment, the multi-direction staggered independent setting of vibration damping shell fragment; Extinguish material 6 is sodium acid carbonate, battery core housing 2 is provided with multiple release aperture 10, release aperture 10 is provided with air pressure valve 11, and the pore size of release aperture 10 is 5 ~ 50mm; Battery core housing 2 is plastic casing.
Embodiment 2:
In the embodiment shown in Figure 2, a kind of core strueture preventing battery catches fire from exploding, comprise battery core body 1 and battery core housing 2, the outside of battery core body 1 is coated with high temperature autoclasis sealing device 3, vibration absorber 4 is provided with inside battery core housing 2, be provided with cavity 5 between vibration absorber 4 and sealing device 3, cavity 5 inside is filled with extinguish material 6.Extinguish material 6 is water, and cavity 5 inside is provided with multiple separate space 8 by dividing plate 7, and separate space 8 inside is respectively arranged with the jet pipe 9 extending to battery core housing 2 outside, and the opening of jet pipe 9 is arranged on the upper end of battery core housing 2.
Sealing device 3 be meet high temperature can the polypropylene film of disintegrate, the temperature of sealing device 3 disintegrate is 80 degree to 120 degree.
Vibration absorber 4 is vibration damping shell fragment, the multi-direction staggered independent setting of vibration damping shell fragment.
Battery core housing 2 is the shell of stainless steel case, iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.In the present embodiment, battery core housing adopts stainless steel case.
A kind of lithium ion battery (see figure 4) with the core strueture preventing battery catches fire from exploding, core strueture, battery pack 13 and battery interface 14 that this lithium ion battery comprises base 12, prevents battery catches fire from exploding, the core strueture preventing battery catches fire from exploding and battery pack 13 and base 12 connect to form lithium ion battery, and battery interface 14 is connected with preventing the core strueture internal electrical of lithium ion battery blast on fire.In the core strueture preventing battery catches fire from exploding sealing device 3 be meet high temperature can the polypropylene film of disintegrate, the temperature of sealing device 3 disintegrate is 80 degree to 120 degree; Vibration absorber 4 is vibration damping shell fragment, the multi-direction staggered independent setting of vibration damping shell fragment; Extinguish material 6 is water, and cavity 5 inside is provided with multiple separate space 8 by dividing plate 7, and separate space 8 inside is respectively arranged with the jet pipe 9 extending to battery core housing 2 outside, and the opening of jet pipe 9 is arranged on the upper end of battery core shell 2; Battery core housing 2 is stainless steel case.
This core strueture preventing battery catches fire from exploding, can be applicable to the battery (see figure 5) of various housing, and battery core housing 2 can be the shell etc. of stainless steel case, iron-clad, aluminum hull, plastic housing, metal material and plastic material combinations.Each field can be applied to, as traffic power (electric bicycle, battery-operated motor cycle, electric automobile), the fields such as energy storage, space flight, communication spare power supplies.Release aperture can be offered in any position on battery core housing 2, release aperture arranges air pressure valve, as offered release aperture on the optional position in 6 faces of battery-pack exterior casing, and cavity inside can fill various extinguish material, as materials such as dry powder, gas, liquid, sodium acid carbonates.There is the lithium ion battery of the core strueture preventing battery catches fire from exploding, do not need personnel control, can carry out voluntarily preventing battery catches fire, blast.
This core strueture preventing battery catches fire from exploding, hermetically sealed parcel design sealing device 3 is carried out in the periphery being close to battery core body 1, sealing device 3 has the function of breaking voluntarily when running into high temperature, again vibration absorber 4 is set in the inner side of battery core shell 2, inner at the cavity 5 be close between environmental sealing device 3 and vibration absorber 4, fill the extinguish materials 6 such as water, when battery produces potential safety hazard, when there is internal short-circuit in battery or the various undesirable element such as to overcharge, the temperature of internal battery pack will raise gradually, when temperature is elevated to a certain degree, the sealing device 3 being close to battery core body will break voluntarily, the extinguish materials such as water penetrate into battery core body surface along with gap of breaking, battery pack is lowered the temperature or puts out a fire, and when internal battery pack surge is elevated to a certain size, vibration absorber 4 under the effect of impulsive force under different directions bullet, impulsive force is discharged, play the effect that vibration damping is explosion-proof, thus it is not on fire to control battery pack, do not explode, the safe and practical property of effective guarantee battery.
This core strueture preventing battery catches fire from exploding, can design for the contour structures of various battery, be applied to various plastic material, Aluminum Drum material, Steel material, iron material or metal material and plastic material combinations battery appearance structure, this structure has simplicity of design, and contour structures is shaping, depanning is simple and easy; Comparing with equal battery structure, material cost is cheaper, and fail safe brings up to more than 99% by 0%.
Claims (10)
1. the core strueture preventing battery catches fire from exploding, comprise battery core body (1) and battery core housing (2), it is characterized in that: the outside of described battery core body (1) is coated with high temperature autoclasis sealing device (3), described battery core housing (2) inner side is provided with vibration absorber (4), be provided with cavity (5) between described vibration absorber (4) and sealing device (3), described cavity (5) inside is filled with extinguish material (6).
2. a kind of core strueture preventing battery catches fire from exploding according to claim 1, it is characterized in that: described sealing device (3) be meet high temperature can the polypropylene film of disintegrate, the temperature of described sealing device (3) disintegrate is 80 degree to 120 degree.
3. a kind of core strueture preventing battery catches fire from exploding according to claim 1, is characterized in that: described vibration absorber (4) is vibration damping shell fragment, the multi-direction staggered independent setting of described vibration damping shell fragment.
4. a kind of core strueture preventing battery catches fire from exploding according to claim 1 or 2 or 3, it is characterized in that: extinguish material (6) is water, described cavity (5) inside is provided with multiple separate space (8) by dividing plate (7), described separate space (8) inside is respectively arranged with and extends to the outside jet pipe (9) of battery core housing (2), and the opening of described jet pipe (9) is arranged on the upper end of battery core housing (2).
5. a kind of core strueture preventing battery catches fire from exploding according to claim 1 or 2 or 3, is characterized in that: extinguish material (6) is dry powder or sodium acid carbonate.
6. a kind of core strueture preventing battery catches fire from exploding according to claim 5, is characterized in that: described battery core housing (2) is provided with multiple release aperture (10), and described release aperture (10) is provided with air pressure valve (11).
7. a kind of core strueture preventing battery catches fire from exploding according to claim 6, is characterized in that: the pore size of described release aperture (10) is 5 ~ 50mm.
8. a kind of core strueture preventing battery catches fire from exploding according to claim 1 or 2 or 3, is characterized in that: battery core housing (2) is stainless steel case, the shell of iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.
9. one kind has the lithium ion battery of the core strueture preventing battery catches fire from exploding according to claim 1, it is characterized in that: this lithium ion battery comprises base (12), the core strueture preventing battery catches fire from exploding, battery pack (13) and battery interface (14), the described core strueture preventing battery catches fire from exploding and battery pack (13) and base (12) connect to form lithium ion battery, and described battery interface (14) is connected with the core strueture internal electrical preventing battery catches fire from exploding.
10. a kind of lithium ion battery with the core strueture preventing battery catches fire from exploding according to claim 9, it is characterized in that: in the described core strueture preventing battery catches fire from exploding sealing device (3) be meet high temperature can the polypropylene film of disintegrate, the temperature of described sealing device (3) disintegrate is 80 degree to 120 degree; Described vibration absorber (4) is vibration damping shell fragment, the multi-direction staggered independent setting of described vibration damping shell fragment; Described extinguish material (6) is water, described cavity (5) inside is provided with multiple separate space (8) by dividing plate (7), described separate space (8) inside is respectively arranged with the jet pipe (9) extending to electric core shell external body, and the opening of described jet pipe (9) is arranged on the upper end of battery core housing; Or described extinguish material (6) is dry powder or sodium acid carbonate, described battery core housing (2) is provided with multiple release aperture (10), described release aperture (10) is provided with air pressure valve (11), and the pore size of described release aperture (10) is 5 ~ 50mm; Battery core housing (2) is stainless steel case, the shell of iron-clad, aluminum hull, plastic casing or metal material and plastic material combinations.
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| CN105244550A (en) * | 2015-10-29 | 2016-01-13 | 金龙联合汽车工业（苏州）有限公司 | Fireproof electric vehicle power battery |
| CN107732344A (en) * | 2017-09-27 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of BBU electric discharge device and method |
| CN112519582A (en) * | 2020-11-24 | 2021-03-19 | 江苏金彭集团有限公司 | High-safety electric vehicle |
| CN112909421A (en) * | 2021-01-29 | 2021-06-04 | 北京电子工程总体研究所 | Method for preventing thermal runaway diffusion of lithium ion battery or battery pack |
| CN113707997A (en) * | 2021-09-26 | 2021-11-26 | 广州极飞科技股份有限公司 | Battery container, battery device, and unmanned equipment |
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| CN112909421A (en) * | 2021-01-29 | 2021-06-04 | 北京电子工程总体研究所 | Method for preventing thermal runaway diffusion of lithium ion battery or battery pack |
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