CN102738502A - Lithium-ion battery for forced internal short-circuit test and preparation method thereof - Google Patents
Lithium-ion battery for forced internal short-circuit test and preparation method thereof Download PDFInfo
- Publication number
- CN102738502A CN102738502A CN2011100956011A CN201110095601A CN102738502A CN 102738502 A CN102738502 A CN 102738502A CN 2011100956011 A CN2011100956011 A CN 2011100956011A CN 201110095601 A CN201110095601 A CN 201110095601A CN 102738502 A CN102738502 A CN 102738502A
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- Prior art keywords
- ion battery
- lithium ion
- positive pole
- battery core
- short
- Prior art date
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Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000010998 test method Methods 0.000 title 1
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000012856 packing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 238000003475 lamination Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910002986 Li4Ti5O12 Inorganic materials 0.000 claims description 3
- 229910032387 LiCoO2 Inorganic materials 0.000 claims description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 229910003005 LiNiO2 Inorganic materials 0.000 claims description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 3
- 229910006025 NiCoMn Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910021385 hard carbon Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000009489 vacuum treatment Methods 0.000 abstract description 5
- 229920006280 packaging film Polymers 0.000 abstract 5
- 239000012785 packaging film Substances 0.000 abstract 5
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000005030 aluminium foil Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000011076 safety test Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
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
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a lithium-ion battery for a forced internal short-circuit test. The lithium-ion battery comprises a lithium-ion battery core, a short-circuit metal part, a positive pole tab, a negative pole tab and a sealing packaging film. The lithium-ion battery core comprises a positive pole, a negative pole and a diaphragm sandwiched between the positive pole and the negative pole. An outer packing of the lithium-ion battery core is removed and the lithium-ion battery core is fully charged. The short-circuit metal part is drawn into the lithium-ion battery core. The positive pole tab and the negative pole tab are welded to the lithium-ion battery core and are electrically connected respectively to the positive pole and the negative pole. The sealing packaging film seals the lithium-ion battery core and a vacuum-pumping process is carried out so that the a convex imprint of the short-circuit metal part is formed on the sealing packaging film. The lithium-ion battery for a forced internal short-circuit test has the advantages that the sealing packaging film is used for sealing packaging; the leakage of an electrolyte is avoided; and after vacuum treatment, a convex imprint of the short-circuit metal part is formed on the sealing packaging film and the short-circuit metal part is located at an obvious position. The invention also discloses a preparation method of the lithium-ion battery for a forced internal short-circuit test.
Description
[technical field]
The present invention relates to a kind of lithium ion battery and preparation method thereof, particularly relate to short test the in a kind of pressure with lithium ion battery and preparation method thereof.
[background technology]
Lithium ion battery more and more obtains the attention of industry in recent years as the new force of battery industry.No matter be, still be used on mobile device such as the digital product, or be used on the power-equipment that the usage space of lithium ion battery is increasing, is also more and more liked by the consumer as on electric tool, the pure battery car at common small communication equipment such as mobile phone.
Be accompanied by the birth of lithium ion battery, safety problem is worried by people always.Make enterprise and research institution as battery, set up strict safety test means and test stone and seem very important and necessary.Japan leads over the world in the research of lithium ion battery, it has set up a kind of method of test battery safety on cell safety detection means and standard---force the internal short-circuit method.But the lithium ion battery of method that is used for this safety test is after being involved in the short circuit metalwork, and its position is difficult to seek to be seen, and the leakage of volatilizing easily of the electrolyte of lithium ion battery.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide the good and electrolyte of a kind of short circuit metalwork position observability not in the pressure of volatile leakage short the test use lithium ion battery.
Lithium ion battery is used in short test in a kind of pressure, comprising:
The lithium ion battery core, comprise positive pole, negative pole and be interval in said positive pole and said negative pole between barrier film, said lithium ion battery core has been removed external packing and has been full of;
The short circuit metalwork is involved in said lithium ion battery in-core;
Positive pole ear is welded on the said lithium ion battery core and with said positive electrical and is connected;
Negative lug is welded on the said lithium ion battery core and with said negative electricity and is connected; And
Pack film, said lithium ion battery core is sealed and vacuumizes, make said short circuit metalwork at the said marking that forms evagination on the film that packs, said positive pole ear and negative lug partly expose to said packing outside the film.
The interior short test of above-mentioned pressure packs film with the lithium ion battery employing and has realized packing; Guaranteed not leakage of electrolyte; After the vacuum treatment simultaneously, the short circuit metalwork is packing the marking that forms evagination on the film, and the position of its placement is apparent in view; In having guaranteed to do during short test, its position can seek easily, controlled.
Further, said positive pole ear and negative lug include bonding jumper and are located at the adhesive tape that the acrylic resin on the said bonding jumper is processed
Further, the material of the bonding jumper of said positive pole ear is an aluminium, and the material of the bonding jumper of said negative lug is a kind of in nickel and the copper.
Further, said short circuit metalwork is a L type nickel wire.
Further, the said film that packs is an aluminum-plastic composite membrane.
Further, the material of said positive pole is selected from least a among LiCoO2, LiNiO2, Li (NiCoMn) O2, LiMn2O4 and the LiFePO4.
Further, the material of said negative pole is selected from least a among graphite, hard carbon and the Li4Ti5O12.
Simultaneously, be necessary to provide the good and electrolyte of short circuit metalwork position observability not in the pressure of volatile leakage short test with the preparation method of lithium ion battery.
Short test comprises the steps: with the preparation method of lithium ion battery in a kind of the pressure
A kind of lithium ion battery core is provided, said lithium ion battery core comprise positive pole, negative pole and be interval in said positive pole and said negative pole between barrier film, and said lithium ion battery core has been removed external packing and has been full of;
The short circuit metalwork is involved in said lithium ion battery in-core;
Positive pole ear and negative lug are welded on the said lithium ion battery core, and said positive pole ear is connected with said positive electrical, and said negative lug is connected with said negative electricity; And
Employing packs film said lithium ion battery core is sealed and vacuumize processing, and said positive pole ear and negative lug partly expose to said packing outside the film.
Further, said positive pole ear and negative lug adopt the method for ultrasonic bonding to be welded on the said lithium ion battery core.
Further, said aluminum-plastic composite membrane comprises aluminium lamination and is located at the resin bed and the nylon layer of said aluminium lamination both sides.
Short test packs film with preparation method's employing of lithium ion battery and has realized packing in the above-mentioned pressure; Guaranteed not leakage of electrolyte; After the vacuum treatment simultaneously, the short circuit metalwork is packing the marking that forms evagination on the film, and the position of its placement is apparent in view; In having guaranteed to do during short test, its position can seek easily, controlled.
[description of drawings]
Fig. 1 is the short structural representation of testing with lithium ion battery in the pressure of enforcement one;
Fig. 2 is the short stereogram of testing with the lithium ion battery core of lithium ion battery in the pressure shown in Figure 1;
Fig. 3 is the short stereogram of testing with the short circuit metalwork of lithium ion battery in the pressure shown in Figure 1;
Fig. 4 is the short stereogram of testing with the positive pole ear of lithium ion battery in the pressure shown in Figure 1;
Fig. 5 is the short structural representation of testing with lithium ion battery that packs film in the pressure shown in Figure 1;
Fig. 6 is the view when short test is with the sealing of lithium ion battery in the pressure shown in Figure 1;
Fig. 7 is the structural representation of the interior short test of the pressure of embodiment two with lithium ion battery;
Fig. 8 is the flow chart of the interior short test of the pressure of embodiment one with the preparation method of lithium ion battery.
[embodiment]
Below main accompanying drawings embodiment of the present invention.
See also Fig. 1 and Fig. 2, short test comprises lithium ion battery core 110, short circuit metalwork 120, positive pole ear 130, negative lug 140 and packs film 150 with lithium ion battery 100 in the pressure of present embodiment one.
Lithium ion battery core 110 is a square lithium ion battery core, and it has been removed external packing and has been full of.Lithium ion battery core 110 comprises barrier film 112, positive pole 114, negative pole (figure does not show) and aluminium foil 116.Barrier film 112 is interval between positive pole 114 and the negative pole, to prevent 110 short circuits of lithium ion battery core.Anodal adopt electric conducting material to be coated on the aluminium foil 116 and form.Negative pole employing electric conducting material is coated on barrier film 112 formation.Anodal 114 material is selected from least a among LiCoO2, LiNiO2, Li (NiCoMn) O2, LiMn2O4 and the LiFePO4.The material of negative pole is selected from least a among graphite, hard carbon and the Li4Ti5O12.
See also Fig. 3, short circuit metalwork 120 is involved in the lithium ion battery core 110.Specifically in the present embodiment, short circuit metalwork 120 is involved between the positive pole 114 and barrier film 112 of lithium ion battery core 110.When short test is done the test of pressure internal short-circuit with lithium ion battery 100 in adopting above-mentioned pressure; Short circuit metalwork 120 is applied a pressure; Make short circuit metalwork 120 wear out barrier film 112; Cause lithium ion battery core 110 internal short-circuits, detect when short test is with lithium ion battery 100 short circuits in the pressure and whether can explode or burn, thereby learn and force interior short test whether to meet international standard with lithium ion battery 100.Short circuit metalwork 120 can be any conducting metal spare, and in the present embodiment, short circuit metalwork 120 is a L type nickel wire.
See also Fig. 4, positive pole ear 130 is welded on the lithium ion battery core 110 and with anodal 114 and is electrically connected.Negative lug 140 is welded on the lithium ion battery core 110 and be connected with negative electricity.Specifically in the present embodiment, positive pole ear 130 and negative lug 140 adopt the method for ultrasonic bonding to be welded on the lithium ion battery core 110.Positive pole ear 130 comprises bonding jumper 132 and is located at the adhesive tape 134 on the bonding jumper 132.Adhesive tape 134 is processed by acrylic resin.In the present embodiment, the structure of negative lug 140 is identical with the structure of positive pole ear 130; Adhesive tape is that the method through pressing is fixed on the bonding jumper.The thickness of bonding jumper can be 0.05～0.4mm, is preferably 0.1mm.Bonding jumper 132 materials of positive pole ear 130 are aluminium.The material of the bonding jumper of negative lug 140 is a kind of in nickel and the copper.
See also Fig. 5 and Fig. 6, pack film 150 lithium ion battery core 110 is sealed and vacuumizes, make short circuit metalwork 120 pack the marking that forms evagination on the film 150.Positive pole ear 130 exposes to negative lug 140 parts and packs outside the film 150.Pack film 150 and be aluminum-plastic composite membrane, plastic film etc.In the present embodiment, pack film 150 and be aluminum-plastic composite membrane.Pack film 150 and comprise nylon layer 152, aluminium lamination 154 and resin bed 156.Nylon layer 152 and resin bed 156 are located at the both sides of aluminium lamination 154 respectively.Resin bed 156 can be acrylic resin or chlorinated polypropylene layer.Resin bed 156 is used for sweat soldering.Aluminium lamination 154 plays moisture and oxygen obstruction effect.Nylon layer 152 plays the environmental protection effect.The thickness that packs film 150 can be 0.08～0.18mm, is preferably 0.11mm.
The interior short test of above-mentioned pressure packs film 150 with lithium ion battery 100 employings and has realized packing; Guaranteed not leakage of electrolyte; After the vacuum treatment simultaneously, short circuit metalwork 120 is packing the marking that forms evagination on the film 150, and the position of its placement is apparent in view; In having guaranteed to do during short test, its position can seek easily, controlled.
See also Fig. 7, the interior short test of the pressure of present embodiment two is with lithium ion battery 200 and force interior weak point test similar basically with lithium ion battery 100, comprises lithium ion battery core 210 and short circuit metalwork 220; Lithium ion battery core 210 comprises barrier film 212, positive pole 214 and negative pole 218.Difference is: lithium ion battery core 210 is cylindrical lithium electronic cell core, and also comprises aluminium foil 216; Barrier film 212 has two-layer, and short circuit metalwork 220 is involved between aluminium foil 216 and the barrier film 212.
See also Fig. 8, short test comprises the steps S301～S304 with the preparation method of lithium ion battery in the pressure of present embodiment.
See also Fig. 2, step S301: a kind of lithium ion battery 110 is provided, that lithium ion battery core 110 comprises is anodal 114, negative pole and be interval in anodal 114 and negative pole between barrier film 112, and lithium ion battery core 110 has been removed external packing and has been full of.
Step 302: short circuit metalwork 120 is involved in the lithium ion battery core 110.
See also Fig. 6, step S303: positive pole ear 130 and negative lug 140 are welded on the lithium ion battery core 110, and positive pole ear 130 is electrically connected with anodal 114, and negative lug 140 is connected with negative electricity.Specifically in the present embodiment, positive pole ear 130 and negative lug 140 adopt the method for ultrasonic bonding to be welded on the lithium ion battery core 110.
Please consult Fig. 5 in the lump, step S304: adopt to pack, 150 seal and vacuumize processing with lithium ion battery core 110, and positive pole ear 130 exposes to negative lug 140 parts and packs outside the film 150.Aluminum-plastic composite membrane 150 comprises aluminium lamination 154 and is located at the resin bed 156 and the nylon layer 152 of aluminium lamination 154 both sides.
Short test packs film 150 with preparation method's employing of lithium ion battery and has realized packing in the above-mentioned pressure; Guaranteed not leakage of electrolyte; After the vacuum treatment simultaneously, short circuit metalwork 120 is packing the marking that forms evagination on the film 150, and the position of its placement is apparent in view; In having guaranteed to do during short test, its position can seek easily, controlled.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. lithium ion battery is used in the interior short test of pressure, it is characterized in that, comprising:
The lithium ion battery core, comprise positive pole, negative pole and be interval in said positive pole and said negative pole between barrier film, said lithium ion battery core has been removed external packing and has been full of;
The short circuit metalwork is involved in said lithium ion battery in-core;
Positive pole ear is welded on the said lithium ion battery core and with said positive electrical and is connected;
Negative lug is welded on the said lithium ion battery core and with said negative electricity and is connected; And
Pack film, said lithium ion battery core is sealed and vacuumizes, make said short circuit metalwork at the said marking that forms evagination on the film that packs, said positive pole ear and negative lug partly expose to said packing outside the film.
2. lithium ion battery is used in short test in the pressure as claimed in claim 1, it is characterized in that said positive pole ear and negative lug include bonding jumper and be located at the adhesive tape that the acrylic resin on the said bonding jumper is processed.
3. lithium ion battery is used in short test in the pressure as claimed in claim 2, it is characterized in that the material of the bonding jumper of said positive pole ear is an aluminium, and the material of the bonding jumper of said negative lug is a kind of in nickel and the copper.
4. lithium ion battery is used in short test in the pressure as claimed in claim 1, it is characterized in that said short circuit metalwork is a L type nickel wire.
5. lithium ion battery is used in short test in the pressure as claimed in claim 1, it is characterized in that the said film that packs is an aluminum-plastic composite membrane.
6. as claimed in claim 1, it is characterized in that the material of said positive pole is selected from least a among LiCoO2, LiNiO2, Li (NiCoMn) O2, LiMn2O4 and the LiFePO4.
7. as claimed in claim 1, it is characterized in that the material of said negative pole is selected from least a among graphite, hard carbon and the Li4Ti5O12.
8. the interior short preparation method who tests with lithium ion battery of pressure is characterized in that, comprises the steps:
A kind of lithium ion battery core is provided, said lithium ion battery core comprise positive pole, negative pole and be interval in said positive pole and said negative pole between barrier film, and said lithium ion battery core has been removed external packing and has been full of;
The short circuit metalwork is involved in said lithium ion battery in-core;
Positive pole ear and negative lug are welded on the said lithium ion battery core, and said positive pole ear is connected with said positive electrical, and said negative lug is connected with said negative electricity; And
Employing packs film said lithium ion battery core is sealed and vacuumize processing, and said positive pole ear and negative lug partly expose to said packing outside the film.
9. short test is characterized in that with the preparation method of lithium ion battery in the pressure as claimed in claim 1, and said positive pole ear and negative lug adopt the method for ultrasonic bonding to be welded on the said lithium ion battery core.
10. short test is characterized in that with the preparation method of lithium ion battery said aluminum-plastic composite membrane comprises aluminium lamination and is located at the resin bed and the nylon layer of said aluminium lamination both sides in the pressure as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110095601.1A CN102738502B (en) | 2011-04-15 | 2011-04-15 | Short test lithium ion battery and preparation method thereof in forcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110095601.1A CN102738502B (en) | 2011-04-15 | 2011-04-15 | Short test lithium ion battery and preparation method thereof in forcing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102738502A true CN102738502A (en) | 2012-10-17 |
| CN102738502B CN102738502B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110095601.1A Active CN102738502B (en) | 2011-04-15 | 2011-04-15 | Short test lithium ion battery and preparation method thereof in forcing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110890588A (en) * | 2019-11-20 | 2020-03-17 | 芜湖天弋能源科技有限公司 | Lithium ion battery comprising internal short circuit device, manufacturing method and triggering method |
| CN112366358A (en) * | 2020-08-28 | 2021-02-12 | 南京瑞贻电子科技有限公司 | Preparation method of lithium electronic battery |
| US12009484B2 (en) | 2019-09-20 | 2024-06-11 | Lg Energy Solution, Ltd. | Battery cell comprising separator having magnetic body formed therein and method for evaluating battery cell safety against internal short circuit by using same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533927A (en) * | 2009-03-17 | 2009-09-16 | 林道勇 | Method for manufacturing lithium ion battery |
| JP2010250954A (en) * | 2009-04-10 | 2010-11-04 | Kri Inc | Safety evaluation method for power storage device and evaluation jig |
-
2011
- 2011-04-15 CN CN201110095601.1A patent/CN102738502B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533927A (en) * | 2009-03-17 | 2009-09-16 | 林道勇 | Method for manufacturing lithium ion battery |
| JP2010250954A (en) * | 2009-04-10 | 2010-11-04 | Kri Inc | Safety evaluation method for power storage device and evaluation jig |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12009484B2 (en) | 2019-09-20 | 2024-06-11 | Lg Energy Solution, Ltd. | Battery cell comprising separator having magnetic body formed therein and method for evaluating battery cell safety against internal short circuit by using same |
| CN110890588A (en) * | 2019-11-20 | 2020-03-17 | 芜湖天弋能源科技有限公司 | Lithium ion battery comprising internal short circuit device, manufacturing method and triggering method |
| CN112366358A (en) * | 2020-08-28 | 2021-02-12 | 南京瑞贻电子科技有限公司 | Preparation method of lithium electronic battery |
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| Publication number | Publication date |
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| CN102738502B (en) | 2016-03-23 |
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Effective date of registration: 20170601 Address after: 518119 Beek Industrial Zone, Kwai Chung street, Dapeng New District, Guangdong, Shenzhen Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: 300402 6 Huaxin Road, Beichen Science Park, Beichen District, Tianjin Co-patentee before: SHENZHEN BAK BATTERY Co.,Ltd. Patentee before: BAK INTERNATIONAL (TIANJIN) Ltd. |
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