CN111584774B - Safe naked-flame-free lithium iron phosphate battery - Google Patents
Safe naked-flame-free lithium iron phosphate battery Download PDFInfo
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- CN111584774B CN111584774B CN202010545262.1A CN202010545262A CN111584774B CN 111584774 B CN111584774 B CN 111584774B CN 202010545262 A CN202010545262 A CN 202010545262A CN 111584774 B CN111584774 B CN 111584774B
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- ring
- sealing cover
- explosion venting
- outer steel
- iron phosphate
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 238000004880 explosion Methods 0.000 claims abstract description 32
- 238000013022 venting Methods 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000011889 copper foil Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000011888 foil Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 10
- 239000005030 aluminium foil Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- QPHXCDBDXANFAU-UHFFFAOYSA-N [Li].[Li].[Fe] Chemical compound [Li].[Li].[Fe] QPHXCDBDXANFAU-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention relates to the technical field of lithium batteries, in particular to a safe naked-flame-free lithium iron phosphate battery which comprises an outer steel shell, wherein an explosion venting ring is arranged at the top end of the outer steel shell and fixedly connected with the outer steel shell, a plurality of explosion venting holes are arranged in the explosion venting ring and are in integrated design with the explosion venting ring, a sealing cover is arranged in the explosion venting ring, a rubber sealing ring is arranged between the outer steel shell and the sealing cover and fixedly connected with the sealing cover, a boss is arranged at the top of the sealing cover and fixedly connected with the sealing cover, the invention has the advantages of reasonable design and ingenious structure, and through mutual matching of the structures, when the temperature in the shell reaches 180-plus-350 ℃, the explosion venting ring is detonated, and meanwhile, the lead-out terminal of an anode nickel piece is cut off in the fastest pressure-releasing mode, so as to achieve the purpose of cutting off an electric loop for a battery core, has good market competitiveness and market prospect.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a safe open-fire-free lithium iron phosphate battery.
Background
The overall packaging structure of the lithium ion battery mainly comprises three parts, namely an outer steel shell, a rubber sealing ring and a sealing cover, and the conventional packaging mode of the cylindrical lithium iron lithium battery is that the sealing cover is fixed by extruding the rubber sealing ring between the outer steel shell and the sealing cover by the outer steel shell in a mechanical mode, and finally the single cylindrical battery cell is packaged.
Because the encapsulation of outer steel casing and closing cap must satisfy vacuum closed's requirement, its compactness is all very high, if when the power consumption return circuit appears the heavy current, the inside temperature of outer steel casing will sharply rise, when the temperature rises to a definite value, lead to its insulating properties to destroy by a wide margin because of the change of the physical properties of electric core diaphragm, there is direct contact formation closed circuit in electric core negative pole copper foil and electric core negative pole aluminium foil, simultaneously under the airtight vacuum environment of inside, the sharp increase of inside pressure has aggravated the sharp increase of temperature in the outer steel casing once more, when the temperature reaches more than 500 degrees, electric core aluminium foil just gets into spontaneous combustion mode, lead to whole battery module to take place smolder at last, its result is just to lead to outer steel casing and closing cap to release inside pressure with the mode that bursts.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a safe non-open-flame lithium iron phosphate battery which has reasonable design and ingenious structure, through mutual matching of the structures, when the temperature in an outer steel shell reaches 180-.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design is a safe open-fire-free lithium iron phosphate battery, which comprises an outer steel shell, wherein an explosion venting ring is installed at the top end of the outer steel shell, the explosion venting ring is fixedly connected with the outer steel shell, a plurality of explosion venting holes are installed in the explosion venting ring, the explosion venting holes and the explosion venting ring are designed in an integrated mode, a sealing cover is installed in the explosion venting ring, a rubber sealing ring is installed between the outer steel shell and the sealing cover, the top end of the explosion venting ring is buckled at the rubber sealing ring, the rubber sealing ring is fixedly connected with the sealing cover, a boss is installed at the top of the sealing cover, the boss is fixedly connected with the sealing cover, a fixed node is installed at the bottom of the sealing cover, a plurality of nickel strip leads are fixedly connected with the sealing cover at the fixed node at the bottom, a groove is formed in the upper end of the outer steel shell, a copper foil is installed in the outer steel shell, a diaphragm is installed on the inner side of the copper foil, and an aluminum foil is installed on the inner side of the diaphragm, the aluminum foil, the diaphragm and the copper foil are designed in a spiral shape.
Preferably, the shape of the explosion venting hole is not limited to circular arc, the axial cross section of the explosion venting ring is circular ring, and the sealing cover is fixed at the explosion venting hole at the top of the outer steel shell through extrusion.
Preferably, the critical value of the battery is 180-350 ℃, and the critical value of the battery is increased according to the number of the explosion venting holes.
Preferably, the length of the nickel strip lead is 15 mm.
Preferably, the aluminum foil has a thickness of 9 μm.
Preferably, the number of the nickel strip leads is more than three, the sum of the axial cross-sectional areas of the three nickel strip leads is equal to the sum of the axial cross-sectional areas of the three nickel strip leads, and the distance from the top of the plurality of nickel strip leads to the bottom of the nickel strip leads is increased in steps from 0.1mm to 1.8 mm.
The safe non-open-flame lithium iron phosphate battery provided by the invention has the beneficial effects that: the number of the nickel strip leads is three or more, the distance from the sealing cover to the aluminum foil of each independent nickel strip lead is increased in steps from 0.1mm to 1.8mm, under normal conditions, the conduction condition of the nickel strip leads is consistent with the traditional state, when the explosion ring is exploded to release pressure, the explosion ring is instantaneously damaged and popped out, and the plurality of nickel strip leads are sequentially disconnected, so that the gradual disconnection between the sealing cover and the positive electrode of the battery cell is synchronously realized at the instant of explosion release of the sealing cover, meanwhile, the physical disconnection of the battery cell body is thoroughly realized, according to the requirement of load on the safety grade of the use of the battery cell, the purpose of setting the explosion release air pressure inside the sealing cover is realized by adjusting the size of the explosion release hole and the density in a quantized mode, the higher the safety grade of the use of the battery cell is, the larger the explosion release hole is, namely, the critical value of the temperature in the outer steel shell is lower. The invention has reasonable design and ingenious structure, through the mutual matching of the structures, when the temperature in the outer steel shell reaches 180-350 ℃, the explosion venting ring is detonated to release the pressure, and meanwhile, the nickel sheet outlet end of the anode is cut off in the fastest way, so that the purpose of cutting off the electricity utilization loop of the battery cell is achieved, and the invention has good market competitiveness and market prospect.
Drawings
FIG. 1 is a schematic diagram of the appearance of a safe non-open-flame lithium iron phosphate battery according to the present invention;
fig. 2 is a cross-sectional view of a safe non-open-fire lithium iron phosphate battery according to the present invention;
fig. 3 is a partial cross-sectional view of a safe non-open-fire lithium iron phosphate battery according to the present invention;
fig. 4 is a top cross-sectional view of a safe non-open-fire lithium iron phosphate battery according to the present invention.
In the figure: 1. a boss; 2. an outer steel shell; 3. sealing the cover; 4. an explosion venting ring; 5. a explosion venting hole; 6. a nickel strap lead; 7. a rubber seal ring; 8. a groove; 9. aluminum foil; 10. a diaphragm; 11. copper foil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a safe no open fire lithium iron phosphate battery, includes outer steel casing 2, and the top of outer steel casing 2 is installed and is let out and explode ring 4, lets out and explode ring 4 and outer steel casing 2 fixed connection, lets out the internally mounted of exploding ring 4 and has a plurality of holes 5 that let out, lets out the shape of exploding hole 5 and is not limited to arc, lets out the axle cross-sectional shape of exploding ring 4 and be the ring shape, and closing cap 3 is fixed in outer steel casing 2 top through the extrusion and lets out hole 5 department that explodes, and application scope is wider.
The size of the explosion release hole 5 is decreased gradually according to the critical value of the battery, and the critical value of the battery is 180 ℃ and 350 ℃, so that the use is safer.
A plurality of let out explode hole 5 all with let out explode ring 4 and be the integral type design, let out the internally mounted of exploding ring 4 and have closing cap 3, install rubber seal 7 between outer steel casing 2 and the closing cap 3, rubber seal 7 and closing cap 3 fixed connection, boss 1 is installed at the top of closing cap 3, boss 1 and closing cap 3 fixed connection, fixed node is installed to the bottom of closing cap 3, a plurality of nickel strap lead wires 6 all with closing cap 3 fixed connection in the fixed node in bottom, 6 long 15mm of nickel strap lead wire, 9 μm of aluminium foil thickness, prevent that the efficiency of battery from reducing.
The number of the nickel strip leads 6 is more than three, the sum of the axial cross-sectional areas of the three nickel strip leads 6 is equal to the sum of the axial cross-sectional areas of the three nickel strip leads 6, the distance from the top of the nickel strip leads 6 to the bottom of the nickel strip leads 6 is increased in steps from 0.1mm to 1.8mm, and the protection effect is better.
A plurality of nickel strap lead wires 6 all with closing cap 3 fixed connection, 2 upper ends of outer steel casing are provided with recess 8, the internally mounted of outer steel casing 2 has copper foil 11, and diaphragm 10 is installed to copper foil 11's inboard, and aluminium foil 9 is installed to diaphragm 10's inboard, and aluminium foil 9, diaphragm 10 and copper foil 11 are the spiral design.
The working principle is as follows: the number of the nickel strip leads 6 is three or more, the distance from the sealing cover to the aluminum foil of each independent nickel strip lead 6 is increased progressively according to steps of 0.1mm to 1.8mm, under normal conditions, the conduction condition of the nickel strip leads is consistent with the traditional state, when the sealing cover is vented and exploded, the venting ring is instantaneously damaged and popped out, and a plurality of nickel strip leads are sequentially broken, so that the gradual disconnection between the sealing cover and the positive electrode of the battery cell can be synchronously realized at the moment that the sealing cover is vented and exploded, meanwhile, the physical disconnection of the battery cell body is thoroughly realized, according to the requirement of load on the safety level of the use of the battery cell, the purpose of setting the venting and exploding air pressure in the sealing cover is realized by adjusting the size of the venting and the density in a quantitative mode, the higher the safety level of the use of the battery cell, the larger the venting and exploding hole is, namely, the lower temperature critical value in the outer steel shell is.
The graphene oxide with 3-5 layers is modified and added into the traditional nano conductive graphite of the conductive coating material according to the proportion of 0.3%, so that the consistency of the monomer battery cell is firstly improved, the increase of the dynamic resistance of the monomer battery cell is secondly reduced, and the specific surface contact surface between the active substance and the current collector is also improved, thereby effectively solving the problem of lithium dendrite.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (5)
1. The utility model provides a safe no naked light lithium iron phosphate battery, includes outer box hat (2), its characterized in that, the top of outer box hat (2) is installed to let out explodes ring (4), let out and explode ring (4) and outer box hat (2) fixed connection, let out the internally mounted that explodes ring (4) and have a plurality of let out and explode hole (5), it is a plurality of let out and explode hole (5) all with let out and explode ring (4) and be the integral type design, let out the internally mounted that explode ring (4) and have closing cap (3), install rubber seal (7) between outer box hat (2) and closing cap (3), let out and explode ring (4) top lock joint in rubber seal (7) department, rubber seal (7) and closing cap (3) fixed connection, boss (1) are installed at the top of closing cap (3), boss (1) and closing cap (3) fixed connection, fixed node is installed to the bottom of closing cap (3), the nickel strip lead wires (6) are fixedly connected with the sealing cover (3) at a bottom fixed junction, a groove (8) is formed in the upper end of the outer steel shell (2), a copper foil (11) is installed inside the outer steel shell (2), a diaphragm (10) is installed on the inner side of the copper foil (11), an aluminum foil (9) is installed on the inner side of the diaphragm (10), and the aluminum foil (9), the diaphragm (10) and the copper foil (11) are designed in a spiral shape;
the number of the nickel strap leads (6) is more than three, the sum of the axial section areas of the three nickel strap leads (6) is equal to the sum of the axial section areas of the nickel strap leads (6), and the distance from the top of the nickel strap leads (6) to the bottom of the nickel strap leads (6) is increased in steps from 0.1mm to 1.8 mm.
2. The safe non-open-fire lithium iron phosphate battery according to claim 1, characterized in that the shape of the explosion venting hole (5) is not limited to circular arc, the axial cross-section of the explosion venting ring (4) is circular ring-shaped, and the sealing cover (3) is fixed at the explosion venting ring (4) on the top of the outer steel shell (2) by extrusion.
3. The safe non-open-fire lithium iron phosphate battery as claimed in claim 1, wherein the size of the explosion venting hole (5) is decreased gradually according to the critical value of the battery, and the critical value of the battery is 180 ℃ and 350 ℃.
4. The safe open-flame lithium iron phosphate battery according to claim 1, wherein the length of the nickel strip lead (6) is 15mm, the top of the nickel strip lead (6) is fixedly connected with the sealing cover (3), and the bottom of the nickel strip lead (6) is fixedly connected with the aluminum foil (9).
5. A safe, open-fire-free lithium iron phosphate battery according to claim 1, characterized in that the aluminum foil (9) has a thickness of 6-15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545262.1A CN111584774B (en) | 2020-06-15 | 2020-06-15 | Safe naked-flame-free lithium iron phosphate battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545262.1A CN111584774B (en) | 2020-06-15 | 2020-06-15 | Safe naked-flame-free lithium iron phosphate battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111584774A CN111584774A (en) | 2020-08-25 |
| CN111584774B true CN111584774B (en) | 2022-09-02 |
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| CN202010545262.1A Active CN111584774B (en) | 2020-06-15 | 2020-06-15 | Safe naked-flame-free lithium iron phosphate battery |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004152697A (en) * | 2002-10-31 | 2004-05-27 | Sony Corp | Sealed battery |
| CN2689470Y (en) * | 2004-04-29 | 2005-03-30 | 广州市淞海五金制品有限公司 | Column lithium cell explosion-proof safety casing |
| CN1832228A (en) * | 2005-03-09 | 2006-09-13 | 三洋电机株式会社 | Battery and method of manufacturing the same |
| JP2007234486A (en) * | 2006-03-03 | 2007-09-13 | Gs Yuasa Corporation:Kk | Battery |
| CN101188275A (en) * | 2006-11-16 | 2008-05-28 | 深圳市比克电池有限公司 | Battery with explosion prevention function |
| CN101894932A (en) * | 2010-07-01 | 2010-11-24 | 东莞新能源科技有限公司 | Explosion-proof device of power battery |
| JP2012174411A (en) * | 2011-02-18 | 2012-09-10 | Toshiba Corp | Battery |
| CN203553252U (en) * | 2013-11-15 | 2014-04-16 | 洛阳理工学院 | Soft package lithium ion power battery with pressure relief and explosion-proof functions |
| CN106784428A (en) * | 2017-01-17 | 2017-05-31 | 无锡市金杨新型电源有限公司 | A kind of anti-explosion battery shell |
| JP2018018704A (en) * | 2016-07-28 | 2018-02-01 | 株式会社豊田自動織機 | Power storage device |
| CN207587871U (en) * | 2017-11-03 | 2018-07-06 | 中能东道集团有限公司 | Explosion-proof type lithium ion battery |
| JP2018125282A (en) * | 2017-01-31 | 2018-08-09 | 株式会社豊田自動織機 | Insulating cover, power storage device, and manufacturing method of power storage device |
| CN209981333U (en) * | 2019-07-24 | 2020-01-21 | 安徽利维能动力电池有限公司 | Explosion-proof shell structure of lithium battery |
| CN210110853U (en) * | 2019-06-11 | 2020-02-21 | 常州市江南电池有限公司 | Lithium battery cap |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090081532A1 (en) * | 2007-09-21 | 2009-03-26 | David Aaron Kaplin | Electrochemical cell with improved internal contact |
| JP5420888B2 (en) * | 2008-12-15 | 2014-02-19 | パナソニック株式会社 | battery |
| CN201408794Y (en) * | 2009-04-30 | 2010-02-17 | 比亚迪股份有限公司 | Battery explosion-proof valve and battery |
-
2020
- 2020-06-15 CN CN202010545262.1A patent/CN111584774B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004152697A (en) * | 2002-10-31 | 2004-05-27 | Sony Corp | Sealed battery |
| CN2689470Y (en) * | 2004-04-29 | 2005-03-30 | 广州市淞海五金制品有限公司 | Column lithium cell explosion-proof safety casing |
| CN1832228A (en) * | 2005-03-09 | 2006-09-13 | 三洋电机株式会社 | Battery and method of manufacturing the same |
| JP2007234486A (en) * | 2006-03-03 | 2007-09-13 | Gs Yuasa Corporation:Kk | Battery |
| CN101188275A (en) * | 2006-11-16 | 2008-05-28 | 深圳市比克电池有限公司 | Battery with explosion prevention function |
| CN101894932A (en) * | 2010-07-01 | 2010-11-24 | 东莞新能源科技有限公司 | Explosion-proof device of power battery |
| JP2012174411A (en) * | 2011-02-18 | 2012-09-10 | Toshiba Corp | Battery |
| CN203553252U (en) * | 2013-11-15 | 2014-04-16 | 洛阳理工学院 | Soft package lithium ion power battery with pressure relief and explosion-proof functions |
| JP2018018704A (en) * | 2016-07-28 | 2018-02-01 | 株式会社豊田自動織機 | Power storage device |
| CN106784428A (en) * | 2017-01-17 | 2017-05-31 | 无锡市金杨新型电源有限公司 | A kind of anti-explosion battery shell |
| JP2018125282A (en) * | 2017-01-31 | 2018-08-09 | 株式会社豊田自動織機 | Insulating cover, power storage device, and manufacturing method of power storage device |
| CN207587871U (en) * | 2017-11-03 | 2018-07-06 | 中能东道集团有限公司 | Explosion-proof type lithium ion battery |
| CN210110853U (en) * | 2019-06-11 | 2020-02-21 | 常州市江南电池有限公司 | Lithium battery cap |
| CN209981333U (en) * | 2019-07-24 | 2020-01-21 | 安徽利维能动力电池有限公司 | Explosion-proof shell structure of lithium battery |
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| Publication number | Publication date |
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| CN111584774A (en) | 2020-08-25 |
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