KR102202480B1 - 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판 및 그 제조 방법 - Google Patents
일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판 및 그 제조 방법 Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 16
- 238000000465 moulding Methods 0.000 title claims description 14
- 238000005097 cold rolling Methods 0.000 claims abstract description 96
- 230000009467 reduction Effects 0.000 claims abstract description 75
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000000137 annealing Methods 0.000 claims description 65
- 238000005266 casting Methods 0.000 claims description 25
- 238000000265 homogenisation Methods 0.000 claims description 18
- 238000005098 hot rolling Methods 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 238000009749 continuous casting Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 30
- 230000003252 repetitive effect Effects 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 description 76
- 239000000463 material Substances 0.000 description 43
- 238000005096 rolling process Methods 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 27
- 229910052751 metal Inorganic materials 0.000 description 22
- 239000002184 metal Substances 0.000 description 22
- 238000005259 measurement Methods 0.000 description 19
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 18
- 229910001416 lithium ion Inorganic materials 0.000 description 18
- 238000005482 strain hardening Methods 0.000 description 14
- 229910000765 intermetallic Inorganic materials 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- 238000007599 discharging Methods 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000009864 tensile test Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000007872 degassing Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 239000006104 solid solution Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 206010039897 Sedation Diseases 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000036280 sedation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- -1 Al-(Fe·Mn)-Si Chemical class 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
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- 230000002238 attenuated effect Effects 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1213—Accessories for subsequent treating or working cast stock in situ for heating or insulating strands
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—Metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Fe: 1.05 내지 1.50질량%, Mn: 0.15 내지 0.70질량%, Ti: 0.002 내지 0.15질량% 및 B: 0.03질량% 미만을 함유하고, 잔부가 Al 및 불순물로 이루어지고, Fe/Mn비가 1.8 내지 7.0으로 규제되고, 불순물로서의 Si가 0.40질량% 미만, Cu가 0.03질량% 미만, Mg이 0.05질량% 미만, V이 0.03질량% 미만으로 규제된 성분 조성을 갖고, 도전율이 53.0% IACS 이상이고, 연신율의 값이 40% 이상이고, 재결정 조직을 가짐과 함께, 압하율 70%로 냉간 압연을 실시한 후의 인장 강도를 TS70이라고 정의하고, 압하율 95%로 냉간 압연을 실시한 후의 인장 강도를 TS95라고 정의한 때의 (TS95-TS70)의 값이 -1㎫ 미만이고, 압하율 90%로 냉간 압연을 실시한 후의 연신율의 값이 5.0% 이상인 것을 특징으로 하는, 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판. 또한 재결정 조직의 재결정립의 평균 결정 입경이 15 내지 30㎛인 것이 바람직하다.
Description
Claims (4)
- Fe: 1.05 내지 1.50질량%, Mn: 0.15 내지 0.70질량%, Ti: 0.002 내지 0.08질량% 및 B: 0.03질량% 미만을 함유하고, 잔부가 Al 및 불순물로 이루어지고, Fe/Mn비가 1.8 내지 7.0으로 규제되고, 불순물로서의 Si가 0.40질량% 미만, Cu가 0.03질량% 미만, Mg이 0.05질량% 미만, V이 0.03질량% 미만으로 규제된 성분 조성을 갖고, 도전율이 53.0% IACS 이상이고, 연신율의 값이 40% 이상이고, 재결정 조직을 가짐과 함께, 압하율 70%로 냉간 압연을 실시한 후의 인장 강도를 TS70이라고 정의하고, 압하율 95%로 냉간 압연을 실시한 후의 인장 강도를 TS95라고 정의한 때의 (TS95-TS70)의 값이 -1㎫ 미만이고, 압하율 90%로 냉간 압연을 실시한 후의 연신율의 값이 5.0% 이상인 것을 특징으로 하는, 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판.
- 제1항에 있어서, 재결정 조직의 재결정립의 평균 결정 입경이 15 내지 30㎛인 것을 특징으로 하는 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판.
- 제1항 또는 제2항에 기재된 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판을 제조하는 제조 방법이며,
제1항에 기재된 성분 조성을 갖는 알루미늄 합금 용탕을 반연속 주조법에 의해 주괴로 주조하는 슬래브 주조 공정과,
주괴에 520 내지 620℃의 유지 온도, 1시간 이상의 유지 시간에서 균질화 처리를 실시하는 균질화 처리 공정과,
상기 균질화 처리 공정 후, 개시 온도 420 내지 520℃ 미만으로 설정하고, 주괴에 열간 압연을 실시하여 열간 압연판을 얻는 열간 압연 공정과,
상기 열간 압연판에 냉간 압연을 실시하여 냉간 압연판을 얻는 냉간 압연 공정과,
상기 냉간 압연판에 배치로에서 최종 어닐링을 실시하는 최종 어닐링 공정을 포함하고,
상기 냉간 압연 공정에 있어서, 최종 냉연율 50% 내지 95%의 범위인 최종 냉간 압연을 실시하고,
상기 최종 어닐링 공정에 있어서, 유지 온도 300 내지 450℃에서 1시간 이상의 최종 어닐링을 행하는 것을 특징으로 하는, 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판의 제조 방법. - 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2018-156532 | 2018-08-23 | ||
JP2018156532A JP6780679B2 (ja) | 2018-08-23 | 2018-08-23 | 一体型防爆弁成形用の電池蓋用アルミニウム合金板およびその製造方法 |
PCT/JP2018/044791 WO2020039604A1 (ja) | 2018-08-23 | 2018-12-05 | 一体型防爆弁成形用の電池蓋用アルミニウム合金板およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
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KR20200023270A KR20200023270A (ko) | 2020-03-04 |
KR102202480B1 true KR102202480B1 (ko) | 2021-01-12 |
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KR1020197032867A Active KR102202480B1 (ko) | 2018-08-23 | 2018-12-05 | 일체형 방폭 밸브 성형용의 전지 덮개용 알루미늄 합금판 및 그 제조 방법 |
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US (1) | US20210363622A1 (ko) |
EP (1) | EP3842558A4 (ko) |
JP (1) | JP6780679B2 (ko) |
KR (1) | KR102202480B1 (ko) |
CN (1) | CN111212924A (ko) |
TW (1) | TWI700850B (ko) |
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JP6780685B2 (ja) * | 2018-09-21 | 2020-11-04 | 日本軽金属株式会社 | 一体型防爆弁成形用の電池蓋用アルミニウム合金板及びその製造方法 |
JP6614305B1 (ja) * | 2018-09-21 | 2019-12-04 | 日本軽金属株式会社 | 一体型防爆弁成形用の電池蓋用アルミニウム合金板及びその製造方法 |
WO2020070944A1 (ja) * | 2018-10-01 | 2020-04-09 | 日本軽金属株式会社 | 一体型防爆弁成形用の電池蓋用アルミニウム合金板およびその製造方法 |
CN114055089A (zh) * | 2021-11-23 | 2022-02-18 | 镇江龙源铝业有限公司 | 一种动力电池盖板用铝带的制备方法 |
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TWI700850B (zh) | 2020-08-01 |
JP6780679B2 (ja) | 2020-11-04 |
WO2020039604A1 (ja) | 2020-02-27 |
TW202010167A (zh) | 2020-03-01 |
KR20200023270A (ko) | 2020-03-04 |
JP2020029601A (ja) | 2020-02-27 |
US20210363622A1 (en) | 2021-11-25 |
EP3842558A1 (en) | 2021-06-30 |
EP3842558A4 (en) | 2022-06-01 |
CN111212924A (zh) | 2020-05-29 |
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