CN105470412A - Flame retardant and anti-explosion battery - Google Patents
Flame retardant and anti-explosion battery Download PDFInfo
- Publication number
- CN105470412A CN105470412A CN201510083091.4A CN201510083091A CN105470412A CN 105470412 A CN105470412 A CN 105470412A CN 201510083091 A CN201510083091 A CN 201510083091A CN 105470412 A CN105470412 A CN 105470412A
- Authority
- CN
- China
- Prior art keywords
- spacer
- battery
- containing cavity
- copper foil
- proof
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a battery, in particular to a flame retardant and anti-explosion battery. The flame retardant and anti-explosion battery comprises a naked battery core and an outer-layer copper foil, wherein a metal protection layer is arranged between the naked battery core and the outer-layer copper foil, an accommodating cavity is arranged between the metal protection layer and the outer-layer copper foil, an isolation sleeve is arranged in the accommodating cavity and is an insulation body, the isolation sleeve is of a dual-layer sleeve-shaped structure with a hollow interior, the inner surface of the outer-layer copper foil is provided with an insulation film, one-way valves are arranged on the metal protection layer, the accommodating cavity is communicated with the naked battery core by the one-way valves, the direction of the one-way valve faces the accommodating cavity from the naked battery core, the interior of the accommodating cavity is filled with a low-pressure gas with atmospheric pressure lower than one standard atmospheric pressure, and the interior of the isolation sleeve is filled with a flame-retardant substance. The flame retardant and anti-explosion battery has the advantages that the external structure of the battery can be improved, the battery deformation is avoided, a combustion-supporting gas is prevented from entering when the battery is punctured, the current increase is relieved, the heat in the battery is reduced, and the battery burning and explosion are prevented.
Description
Technical field
The present invention relates to a kind of battery, especially relate to a kind of flame-proof explosion-proof battery.
Background technology
Existing battery is naked battery core external sheath one deck Copper Foil, and naked battery core is reeled formed by anode, barrier film, negative electrode, has electrolyte in naked battery core.When this kind of battery is under pressure, outer copper foil is easily out of shape, and battery is easily revealed, and causes battery to scrap, and even causes battery spontaneous combustion, blast.When detecting cell safety index, usually adopting needing machine to do pin prick test, utilizing metal needle to run through battery, test battery whether spontaneous combustion or blast.When metal needle is through battery, metal needle contact Copper Foil and naked battery core, cause short circuit, produce larger current, the temperature of metal needle raises, and the structure of existing battery causes heat to discharge, and outside air enters in battery by metal needle perforation, oxygen in air, as combustion-supporting gas, makes battery spontaneous combustion even explode.
Summary of the invention
The present invention, mainly for the problems referred to above, provides a kind of and can strengthen outside batteries structure, avoids cell deformation, prevented combustion-supporting gas from entering and slow down the flame-proof explosion-proof battery that electric current increases, reduces inside battery heat, prevents cells burst and blast at battery during acupuncture.
Object of the present invention is mainly achieved by following proposal: a kind of flame-proof explosion-proof battery, comprise naked battery core and outer copper foil, coat of metal is provided with between described naked battery core and outer copper foil, containing cavity is provided with between coat of metal and outer copper foil, spacer is provided with in containing cavity, spacer is insulator, spacer is the double-deck sleeve-like structure of inner hollow, outer copper foil inner surface is provided with dielectric film, coat of metal is provided with unidirectional valve, containing cavity is communicated with naked battery core by unidirectional valve, the direction of unidirectional valve is towards containing cavity by naked battery core, the low-pressure gas of air pressure lower than a standard atmospheric pressure is filled with in containing cavity, spacer inside is filled with fire retardant matter.Between naked battery core and outer copper foil, coat of metal is set; there is between coat of metal and outer copper foil gap and form containing cavity; spacer is provided with in containing cavity; spacer is the double-deck sleeve-like structure of inner hollow; namely spacer inside is the cavity of sealing, fills fire retardant matter, in containing cavity, fill low-pressure gas in cavity; low-pressure gas is the gas of air pressure lower than a standard atmospheric pressure, makes the pressure in containing cavity be less than pressure in naked battery core.Spacer can support outer copper foil, strengthens outer copper foil structural strength, makes outer copper foil coaxial with coat of metal all the time, avoid cell deformation.After battery uses a period of time, naked battery core inside produces reacted waste gas.Due to coat of metal being provided with unidirectional valve; containing cavity is communicated with naked battery core by unidirectional valve; and the direction of unidirectional valve is towards containing cavity by naked battery core; waste gas in naked battery core enters in the lower containing cavity of air pressure by unidirectional valve; it is the mist of waste gas and low-pressure gas in cavity now between containing cavity and spacer; containing cavity uses the waste gas produced as container collection battery, avoid battery bulging, prevent battery explosion.After containing cavity absorbs battery generation waste gas, be the mist of waste gas and low-pressure gas between containing cavity and spacer, and in spacer, be fire retardant matter.When battery is subject to acupuncture, acupuncture is through outer copper foil, and enter the moment of containing cavity, the waste gas in containing cavity and the mist of low-pressure gas leak, and the extraneous combustion-supporting gas of air can be stoped to enter.Along with metal needle acupuncture penetrates in spacer, the fire retardant matter in spacer leaks, and jointly stop combustion-supporting gas to enter battery, and fire retardant matter can prevent cells burst with waste gas and low-pressure gas.When metal needle runs through battery; outer copper foil inner surface is provided with dielectric film; outer copper foil, between coat of metal and metal needle formed a current circuit; a current circuit is formed between naked battery core and metal needle; slow down current collection, reduce the temperature amount of increase of metal needle, the fire retardant matter in spacer can be followed metal needle and be entered inside battery; can not only cool metal needle, and cells burst and blast can be prevented.Battery is not yielding when normal use, and the fire retardant matter in spacer can not cause interference to the use of battery, and the low pressure in containing cavity can absorb in naked battery core and produce waste gas, makes containing cavity as container collection waste gas, avoids battery bulging.When battery sudden huge profits use causes acupuncture, many current circuits slow down current collection, reduce temperature and raise, the combustion-supporting gases such as air can be stoped to enter, prevent battery spontaneous combustion further, make cell safety reliable when fire retardant matter leaks.
As preferably, described spacer inside is provided with parting bead, and parting bead is centered around spacer inside in the shape of a spiral.Spacer inside is provided with parting bead, by the side wall support of parting bead to spacer both sides, the pressure avoiding spacer to be subject to waste gas causes spacer to be out of shape, parting bead is centered around in spacer in the shape of a spiral, make cavity in spacer in the shape of a spiral, when outer copper foil is pierced, fire retardant matter in spacer leaks, spiral helicine spacer inside can increase the path of fire retardant matter movement, and then control outer discharge, fire retardant matter is slowly flowed out, extend the time that fire retardant matter leaks, and then extend the time intercepting air and enter, after ensureing that metal needle runs through battery completely, still can have fire retardant matter leak out intercept combustion-supporting gas enter, prevent cells burst.
As preferably, parting bead thickness is 2 times of spacer wall thickness to 3 times.The excessive spacer internal volume that easily causes of parting bead thickness is excessively taken, under guarantee spacer internal volume obtains the condition of Appropriate application, parting bead thickness is 2 times of spacer thickness to 3 times, the contact area of parting bead and spacer can be increased, and then strengthen parting bead to the support of spacer, avoid parting bead flexural deformation simultaneously.
As preferably, the axial distance between adjacent two layers parting bead is 1.5 times of parting bead thickness to 3 times.Parting bead around the number of turns more, the volume that spacer inside is taken by parting bead is larger, under guarantee spacer internal volume obtains the condition of Appropriate application, the axial distance between adjacent two layers parting bead is 1.5 times of parting bead thickness to 3 times, can strengthen the support of parting bead to spacer.
As preferably, between coat of metal and naked battery core, be provided with barrier film.
As preferably, the ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is between 0.5:1 to 2:1.Fire retardant matter is used for being subject at battery stoping combustion-supporting gas to enter battery when leaking after the violences such as acupuncture use, and stops the effect of battery spontaneous combustion simultaneously; Low-pressure gas is for reducing the air pressure in containing cavity, the power absorbing waste gas is provided, and a part for volume shared by low-pressure gas is intended for container collection waste gas, the amount of fire retardant matter and the amount of low-pressure gas all have specific function, ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is between 0.5:1 to 2:1, can ensure that battery uses the waste gas produced when 10,000 times can obtain the absorption of containing cavity, and battery is subject to acupuncture when leaking, fire retardant matter slowly can leak all the time and organize cells burst.
As preferably, described low-pressure gas is thin nitrogen.Low-pressure gas is thin nitrogen; thin nitrogen can reduce the air pressure in containing cavity; be convenient to waste gas and suck; simultaneously nitrogen can be fire-retardant; when battery be subject to acupuncture leak time; nitrogen can be followed fire retardant matter and together be leaked, and stops the combustion-supporting gases such as air to enter battery, prevents battery spontaneous combustion further.
As preferably, fire retardant matter is dry powder or sodium-chloride water solution.Fire retardant matter can be dry powder, and when acupuncture runs through, dry powder can be fire-retardant, even extinguishes naked light in the moment producing fragmentary Mars.Fire retardant matter can also to be sodium-chloride water solution, and sodium-chloride water solution can be attached on metal needle when metal needle passes, and to metal needle cooling, can play effect that is fire-retardant and extinguishing naked light simultaneously.
As preferably, the two ends up and down of coat of metal are provided with unidirectional valve.The two ends up and down of coat of metal are provided with unidirectional valve, and no matter anode is at upper or negative pole upper, and no matter fire retardant matter sinks to the bottom still swims in lower, at least ensures have a unidirectional valve not blocked between containing cavity and naked battery core.
A kind of flame-proof explosion-proof battery, it is characterized in that, comprise naked battery core and outer copper foil, naked battery core is by negative electrode, spacer, anode winding forms, coat of metal is provided with between naked battery core and outer copper foil, barrier film is provided with between coat of metal and naked battery core, containing cavity is provided with between coat of metal and outer copper foil, spacer is provided with in containing cavity, spacer is insulator, spacer is the double-deck sleeve-like structure of inner hollow, spacer inside is provided with parting bead, parting bead is centered around spacer inside in the shape of a spiral, parting bead thickness is 2.5 times of spacer wall thickness, axial distance between adjacent two layers parting bead is 2 times of parting bead thickness, outer copper foil inner surface is provided with dielectric film, the two ends up and down of coat of metal outer wall are provided with unidirectional valve, containing cavity is communicated with naked battery core by unidirectional valve, the direction of unidirectional valve is towards containing cavity by naked battery core, the low-pressure gas of air pressure lower than a standard atmospheric pressure is filled with in containing cavity, spacer inside is filled with fire retardant matter, low-pressure gas is thin nitrogen, fire retardant matter is sodium-chloride water solution, ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is 1:1.
Therefore, flame-proof explosion-proof battery of the present invention possesses following advantage: 1, between naked battery core and outer copper foil, coat of metal is set, there is between coat of metal and outer copper foil gap and form containing cavity, spacer is provided with in containing cavity, spacer is the double-deck sleeve-like structure of inner hollow, namely spacer inside is the cavity of sealing, fire retardant matter is filled in cavity, low-pressure gas is filled in containing cavity, low-pressure gas is the gas of air pressure lower than a standard atmospheric pressure, the pressure in containing cavity is made to be less than pressure in naked battery core, spacer can support outer copper foil, strengthen outer copper foil structural strength, make outer copper foil coaxial with coat of metal all the time, avoid cell deformation, 2, after battery uses a period of time, naked battery core inside produces reacted waste gas, due to coat of metal being provided with unidirectional valve, containing cavity is communicated with naked battery core by unidirectional valve, and the direction of unidirectional valve is towards containing cavity by naked battery core, waste gas in naked battery core enters in the lower containing cavity of air pressure by unidirectional valve, it is the mist of waste gas and low-pressure gas in cavity now between containing cavity and spacer, containing cavity uses the waste gas produced as container collection battery, avoid battery bulging, prevent battery explosion, 3, when battery is subject to acupuncture, acupuncture is through outer copper foil, enter the moment of containing cavity, waste gas in containing cavity and the mist of low-pressure gas leak, the extraneous combustion-supporting gas of air can be stoped to enter, and along with metal needle acupuncture penetrates in spacer, the fire retardant matter in spacer leaks, jointly stop combustion-supporting gas to enter battery with waste gas and low-pressure gas, and fire retardant matter can prevent cells burst, 4, when metal needle runs through battery, outer copper foil inner surface is provided with dielectric film, outer copper foil, between coat of metal and metal needle formed a current circuit, a current circuit is formed between naked battery core and metal needle, slow down current collection, reduce the temperature amount of increase of metal needle, the fire retardant matter in spacer can be followed metal needle and be entered inside battery, can not only cool metal needle, and cells burst and blast can be prevented.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of fragmentary sectional view of the present invention;
Accompanying drawing 2 is A place partial enlarged drawings in accompanying drawing 1;
Accompanying drawing 3 is cross sectional representation of the present invention;
Accompanying drawing 4 is B place partial enlarged drawings in accompanying drawing 3;
Accompanying drawing 5 is the partial enlarged drawings under pin prick test state.
Illustrate: the naked battery core of 01-, 011-negative electrode, 012-anode, 013-barrier film, 02-coat of metal, 03-barrier film, 04-outer copper foil, 05-containing cavity, 06-fire retardant matter, 07-spacer, 071-parting bead, 08-unidirectional valve, 09-metal needle.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as shown in Figure 1,2,3, 4, a kind of flame-proof explosion-proof battery, comprises naked battery core 01 and outer copper foil 04, and naked battery core is reeled formed by negative electrode 011, spacer 013, anode 012.Be provided with coat of metal 02 between naked battery core and outer copper foil, between coat of metal and naked battery core, be provided with barrier film 03, between coat of metal and outer copper foil, be provided with containing cavity 05.Be provided with spacer 07 in containing cavity, spacer is insulator, and spacer is the double-deck sleeve-like structure of inner hollow, and spacer inside is provided with parting bead 071, and parting bead is centered around spacer inside in the shape of a spiral.Parting bead thickness is 2.5 times of spacer wall thickness, and the axial distance between adjacent two layers parting bead is 2 times of parting bead thickness.Outer copper foil inner surface is provided with dielectric film, and the two ends up and down of coat of metal outer wall are provided with unidirectional valve 08, and containing cavity is communicated with naked battery core by unidirectional valve, and the direction of unidirectional valve is towards containing cavity by naked battery core.Be filled with the low-pressure gas of air pressure lower than a standard atmospheric pressure in containing cavity, spacer inside is filled with fire retardant matter 06.Low-pressure gas is thin nitrogen, and fire retardant matter is sodium-chloride water solution, and the ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is 1:1.
Between naked battery core and outer copper foil, coat of metal is set; there is between coat of metal and outer copper foil gap and form containing cavity; spacer is provided with in containing cavity; spacer is the double-deck sleeve-like structure of inner hollow; namely spacer inside is the cavity of sealing, fills fire retardant matter, in containing cavity, fill low-pressure gas in cavity; low-pressure gas is the gas of air pressure lower than a standard atmospheric pressure, makes the pressure in containing cavity be less than pressure in naked battery core.Spacer can support outer copper foil, strengthens outer copper foil structural strength, makes outer copper foil coaxial with coat of metal all the time, avoid cell deformation.After battery uses a period of time, naked battery core inside produces reacted waste gas.Due to coat of metal being provided with unidirectional valve; containing cavity is communicated with naked battery core by unidirectional valve; and the direction of unidirectional valve is towards containing cavity by naked battery core; waste gas in naked battery core enters in the lower containing cavity of air pressure by unidirectional valve; it is the mist of waste gas and low-pressure gas in cavity now between containing cavity and spacer; containing cavity uses the waste gas produced as container collection battery, avoid battery bulging, prevent battery explosion.After containing cavity absorbs battery generation waste gas, be the mist of waste gas and low-pressure gas between containing cavity and spacer, and in spacer, be fire retardant matter.When battery is subject to acupuncture, as shown in Figure 5, the acupuncture of metal needle 09 is through outer copper foil, and enter the moment of containing cavity, the waste gas in containing cavity and the mist of low-pressure gas leak, and the extraneous combustion-supporting gas of air can be stoped to enter.Along with metal needle acupuncture penetrates in spacer, the fire retardant matter in spacer leaks, and jointly stop combustion-supporting gas to enter battery, and fire retardant matter can prevent cells burst with waste gas and low-pressure gas.When metal needle runs through battery; outer copper foil inner surface is provided with dielectric film; outer copper foil, between coat of metal and metal needle formed a current circuit; a current circuit is formed between naked battery core and metal needle; slow down current collection, reduce the temperature amount of increase of metal needle, the fire retardant matter in spacer can be followed metal needle and be entered inside battery; can not only cool metal needle, and cells burst and blast can be prevented.Battery is not yielding when normal use, and the fire retardant matter in spacer can not cause interference to the use of battery, and the low pressure in containing cavity can absorb in naked battery core and produce waste gas, makes containing cavity as container collection waste gas, avoids battery bulging.When battery sudden huge profits use causes acupuncture, many current circuits slow down current collection, reduce temperature and raise, the combustion-supporting gases such as air can be stoped to enter, prevent battery spontaneous combustion further, make cell safety reliable when fire retardant matter leaks.Spacer inside is provided with parting bead, by the side wall support of parting bead to spacer both sides, the pressure avoiding spacer to be subject to waste gas causes spacer to be out of shape, parting bead is centered around in spacer in the shape of a spiral, make cavity in spacer in the shape of a spiral, when outer copper foil is pierced, fire retardant matter in spacer leaks, spiral helicine spacer inside can increase the path of fire retardant matter movement, and then control outer discharge, fire retardant matter is slowly flowed out, extend the time that fire retardant matter leaks, and then extend the time intercepting air and enter, after ensureing that metal needle runs through battery completely, still can have fire retardant matter leak out intercept combustion-supporting gas enter, prevent cells burst.The excessive spacer internal volume that easily causes of parting bead thickness is excessively taken, under guarantee spacer internal volume obtains the condition of Appropriate application, parting bead thickness is 2.5 times of spacer thickness, the contact area of parting bead and spacer can be increased, and then strengthen parting bead to the support of spacer, avoid parting bead flexural deformation simultaneously.Parting bead around the number of turns more, the inner volume taken by parting bead of spacer is larger, and under ensureing that spacer internal volume obtains the condition of Appropriate application, the axial distance between adjacent two layers parting bead is 2 times of parting bead thickness, can strengthen the support of parting bead to spacer.Fire retardant matter is used for being subject at battery stoping combustion-supporting gas to enter battery when leaking after the violences such as acupuncture use, and stops the effect of battery spontaneous combustion simultaneously; Low-pressure gas is for reducing the air pressure in containing cavity, the power absorbing waste gas is provided, and a part for volume shared by low-pressure gas is intended for container collection waste gas, the amount of fire retardant matter and the amount of low-pressure gas all have specific function, ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is 1:1, can ensure that battery uses the waste gas produced when 10,000 times can obtain the absorption of containing cavity, and battery is subject to acupuncture when leaking, fire retardant matter slowly can leak all the time and organize cells burst.Low-pressure gas is thin nitrogen; thin nitrogen can reduce the air pressure in containing cavity; be convenient to waste gas and suck; simultaneously nitrogen can be fire-retardant; when battery be subject to acupuncture leak time; nitrogen can be followed fire retardant matter and together be leaked, and stops the combustion-supporting gases such as air to enter battery, prevents battery spontaneous combustion further.Fire retardant matter is sodium-chloride water solution, and sodium-chloride water solution can be attached on metal needle when metal needle passes, and to metal needle cooling, can play effect that is fire-retardant and extinguishing naked light simultaneously.The two ends up and down of coat of metal are provided with unidirectional valve, and no matter anode is at upper or negative pole upper, and no matter fire retardant matter sinks to the bottom still swims in lower, at least ensures have a unidirectional valve not blocked between containing cavity and naked battery core.
Should be understood that this embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (10)
1. a flame-proof explosion-proof battery, comprise naked battery core and outer copper foil, it is characterized in that, coat of metal is provided with between described naked battery core and outer copper foil, containing cavity is provided with between coat of metal and outer copper foil, spacer is provided with in containing cavity, spacer is insulator, spacer is the double-deck sleeve-like structure of inner hollow, outer copper foil inner surface is provided with dielectric film, coat of metal is provided with unidirectional valve, containing cavity is communicated with naked battery core by unidirectional valve, the direction of unidirectional valve is towards containing cavity by naked battery core, the low-pressure gas of air pressure lower than a standard atmospheric pressure is filled with in containing cavity, spacer inside is filled with fire retardant matter.
2. flame-proof explosion-proof battery according to claim 1, is characterized in that, described spacer inside is provided with parting bead, and parting bead is centered around spacer inside in the shape of a spiral.
3. flame-proof explosion-proof battery according to claim 2, is characterized in that, parting bead thickness is 2 times of spacer wall thickness to 3 times.
4. flame-proof explosion-proof battery according to claim 2, is characterized in that, the axial distance between adjacent two layers parting bead is 1.5 times of parting bead thickness to 3 times.
5. the flame-proof explosion-proof battery according to claim 1 or 2 or 3 or 4, is characterized in that, be provided with barrier film between coat of metal and naked battery core.
6. the flame-proof explosion-proof battery according to claim 1 or 2 or 3 or 4, is characterized in that, the ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is between 0.5:1 to 2:1.
7. the flame-proof explosion-proof battery according to claim 1 or 2 or 3 or 4, it is characterized in that, described low-pressure gas is thin nitrogen.
8. the flame-proof explosion-proof battery according to claim 1 or 2 or 3 or 4, it is characterized in that, fire retardant matter is dry powder or sodium-chloride water solution.
9. the flame-proof explosion-proof battery according to claim 1 or 2 or 3 or 4, it is characterized in that, the two ends up and down of coat of metal are provided with unidirectional valve.
10. a flame-proof explosion-proof battery, it is characterized in that, comprise naked battery core and outer copper foil, naked battery core is by negative electrode, spacer, anode winding forms, coat of metal is provided with between naked battery core and outer copper foil, barrier film is provided with between coat of metal and naked battery core, containing cavity is provided with between coat of metal and outer copper foil, spacer is provided with in containing cavity, spacer is insulator, spacer is the double-deck sleeve-like structure of inner hollow, spacer inside is provided with parting bead, parting bead is centered around spacer inside in the shape of a spiral, parting bead thickness is 2.5 times of spacer wall thickness, axial distance between adjacent two layers parting bead is 2 times of parting bead thickness, outer copper foil inner surface is provided with dielectric film, the two ends up and down of coat of metal outer wall are provided with unidirectional valve, containing cavity is communicated with naked battery core by unidirectional valve, the direction of unidirectional valve is towards containing cavity by naked battery core, the low-pressure gas of air pressure lower than a standard atmospheric pressure is filled with in containing cavity, spacer inside is filled with fire retardant matter, low-pressure gas is thin nitrogen, fire retardant matter is sodium-chloride water solution, ratio shared by volume shared by fire retardant matter and low-pressure gas between volume is 1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083091.4A CN105470412B (en) | 2015-02-16 | 2015-02-16 | Flame-proof explosion-proof battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083091.4A CN105470412B (en) | 2015-02-16 | 2015-02-16 | Flame-proof explosion-proof battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105470412A true CN105470412A (en) | 2016-04-06 |
| CN105470412B CN105470412B (en) | 2017-12-12 |
Family
ID=55607920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083091.4A Active CN105470412B (en) | 2015-02-16 | 2015-02-16 | Flame-proof explosion-proof battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105470412B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111466040A (en) * | 2017-08-15 | 2020-07-28 | 杜拉塞尔美国经营公司 | Battery with safety layer |
| CN116387723A (en) * | 2023-04-17 | 2023-07-04 | 无锡旭浦能源科技有限公司 | Active overheat protection system of modularized lithium battery energy storage device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144317A (en) * | 2008-09-05 | 2011-08-03 | 松下电器产业株式会社 | Battery pack |
| CN102148397A (en) * | 2011-02-12 | 2011-08-10 | 昆明五威科工贸有限公司 | Security application protection system of lithium-ion battery pack |
| CN102324465A (en) * | 2011-08-31 | 2012-01-18 | 浙江谷神能源科技股份有限公司 | Explosion-proof flame-retardant lithium-ion battery safety box |
| CN104218200A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN104218202A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN104241565A (en) * | 2014-07-30 | 2014-12-24 | 浙江超威创元实业有限公司 | Lithium battery provided with fire-proof and explosion-proof device and electric car adopting battery |
-
2015
- 2015-02-16 CN CN201510083091.4A patent/CN105470412B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144317A (en) * | 2008-09-05 | 2011-08-03 | 松下电器产业株式会社 | Battery pack |
| CN102148397A (en) * | 2011-02-12 | 2011-08-10 | 昆明五威科工贸有限公司 | Security application protection system of lithium-ion battery pack |
| CN102324465A (en) * | 2011-08-31 | 2012-01-18 | 浙江谷神能源科技股份有限公司 | Explosion-proof flame-retardant lithium-ion battery safety box |
| CN104218200A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN104218202A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN104241565A (en) * | 2014-07-30 | 2014-12-24 | 浙江超威创元实业有限公司 | Lithium battery provided with fire-proof and explosion-proof device and electric car adopting battery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111466040A (en) * | 2017-08-15 | 2020-07-28 | 杜拉塞尔美国经营公司 | Battery with safety layer |
| US11394091B2 (en) | 2017-08-15 | 2022-07-19 | Duracell U.S. Operations, Inc. | Battery cell with safety layer |
| CN111466040B (en) * | 2017-08-15 | 2022-11-01 | 杜拉塞尔美国经营公司 | Battery with safety layer |
| US11876165B2 (en) | 2017-08-15 | 2024-01-16 | Duracell U.S. Operations, Inc. | Battery cell with safety layer |
| CN116387723A (en) * | 2023-04-17 | 2023-07-04 | 无锡旭浦能源科技有限公司 | Active overheat protection system of modularized lithium battery energy storage device |
| CN116387723B (en) * | 2023-04-17 | 2023-10-27 | 无锡旭浦能源科技有限公司 | Active overheat protection system of modularized lithium battery energy storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105470412B (en) | 2017-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016015603A1 (en) | Lithium battery and electric vehicle using same | |
| CN103682188B (en) | Flame-proof explosion-proof battery pack | |
| TWI496340B (en) | Cap assembly of novel structure and cylindrical battery employed with the same | |
| CN205303595U (en) | Explosion -proof battery module | |
| CN105470412A (en) | Flame retardant and anti-explosion battery | |
| CN211238301U (en) | Sealed shell structure and battery | |
| US3870566A (en) | Battery having venting passageway outside of or in gas-pervious layers | |
| CN107432498A (en) | Safety-type soft bag lithium ionic cell and electronic cigarette | |
| CN204407394U (en) | Anti-explosion battery | |
| KR101811473B1 (en) | Waterproof layer coated pouch type secondary battery and method for fabricating thereof | |
| CN112670679B (en) | Flame-retardant and explosion-proof shell for lithium ion battery | |
| CN204407392U (en) | Flame-proof battery | |
| CN105470432A (en) | Puncture-test flame-retardant battery | |
| JP2015185224A (en) | Sealed type battery | |
| CN103531730B (en) | A kind of Leak-proof cap of lithium-ion-power cell | |
| CN204991889U (en) | Power battery | |
| CN207165621U (en) | Button sandwich type element and button cell | |
| CN205335388U (en) | Overheated explosion -proof mechanism of battery | |
| CN214754053U (en) | Explosion-proof combination valve, top cap and battery | |
| CN205828450U (en) | A kind of lithium ion battery cover board | |
| CN106410079A (en) | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance | |
| CN204045648U (en) | A kind of Safty electronic cigarette and electronic cigarette battery | |
| KR20170051037A (en) | A lead-acid battery with leaking protection structure | |
| CN209434229U (en) | A kind of lithium-ion battery shell | |
| CN215008495U (en) | Flame retardant structure, top cover and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang District, No. two road, building No. 855, No. Applicant after: Wanxiang 123 Co Ltd Applicant after: Wanxiang Group Corporation Address before: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Applicant before: Universal A 1 System Co., Ltd Applicant before: Wanxiang Group Corporation |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211108 Address after: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang A123 Co.,Ltd. Address before: No.855, Jianshe 2nd Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Wanxiang A123 Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |