JP4543662B2 - 電池 - Google Patents
電池 Download PDFInfo
- Publication number
- JP4543662B2 JP4543662B2 JP2003388240A JP2003388240A JP4543662B2 JP 4543662 B2 JP4543662 B2 JP 4543662B2 JP 2003388240 A JP2003388240 A JP 2003388240A JP 2003388240 A JP2003388240 A JP 2003388240A JP 4543662 B2 JP4543662 B2 JP 4543662B2
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- Japan
- Prior art keywords
- container
- conductive metal
- lead terminal
- battery
- metal layer
- 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.)
- Expired - Lifetime
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- 229910052751 metal Inorganic materials 0.000 claims description 119
- 239000002184 metal Substances 0.000 claims description 117
- 238000003466 welding Methods 0.000 claims description 99
- 238000007789 sealing Methods 0.000 claims description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 15
- 229910001416 lithium ion Inorganic materials 0.000 claims description 15
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 10
- 239000003792 electrolyte Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 66
- 229910000831 Steel Inorganic materials 0.000 description 39
- 239000010959 steel Substances 0.000 description 39
- 230000000052 comparative effect Effects 0.000 description 37
- 229910052759 nickel Inorganic materials 0.000 description 33
- 238000007747 plating Methods 0.000 description 32
- 239000000203 mixture Substances 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 15
- -1 lithium transition metal Chemical class 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 8
- 239000007773 negative electrode material Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 6
- 239000003575 carbonaceous material Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000002905 metal composite material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
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- 239000000571 coke Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002180 crystalline carbon material Substances 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- HTWIZMNMTWYQRN-UHFFFAOYSA-N 2-methyl-1,3-dioxolane Chemical compound CC1OCCO1 HTWIZMNMTWYQRN-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- PPDFQRAASCRJAH-UHFFFAOYSA-N 2-methylthiolane 1,1-dioxide Chemical compound CC1CCCS1(=O)=O PPDFQRAASCRJAH-UHFFFAOYSA-N 0.000 description 1
- 229910017115 AlSb Inorganic materials 0.000 description 1
- 229910004706 CaSi2 Inorganic materials 0.000 description 1
- 101100069231 Caenorhabditis elegans gkow-1 gene Proteins 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910019974 CrSi Inorganic materials 0.000 description 1
- 229910016521 CuMgSb Inorganic materials 0.000 description 1
- 229910005329 FeSi 2 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910007857 Li-Al Inorganic materials 0.000 description 1
- 229910007855 Li-Al-M Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910015044 LiB Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910012573 LiSiO Inorganic materials 0.000 description 1
- 229910012404 LiSnO Inorganic materials 0.000 description 1
- 229910008447 Li—Al Inorganic materials 0.000 description 1
- 229910008448 Li—Al-M Inorganic materials 0.000 description 1
- 229910008471 Li—Al—M Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019018 Mg 2 Si Inorganic materials 0.000 description 1
- 229910019021 Mg 2 Sn Inorganic materials 0.000 description 1
- 229910017028 MnSi Inorganic materials 0.000 description 1
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910005881 NiSi 2 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- 229910008484 TiSi Inorganic materials 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 150000001656 butanoic acid esters Chemical class 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002168 ethanoic acid esters Chemical class 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011809 glassy carbon fiber Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 239000011331 needle coke Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- 239000002006 petroleum coke Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003151 propanoic acid esters Chemical class 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000007767 slide coating Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- 150000003624 transition metals Chemical class 0.000 description 1
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
実施例1では、外装缶を製造する際に、先ず、鉄鋼板の両主面にニッケルめっきが施されたニッケルめっき鋼板に、一対の圧延ロールを供える圧延装置にて圧延処理を施し、このニッケルめっき鋼板の両主面に一対のロールの表面の平均粗度を転写させ、ニッケルめっき鋼板表面の中心線平均粗度(Ra)を0.6μmのダル仕上げにした。このとき、ニッケルめっき鋼板には、鉄鋼板の厚みが0.1mm程度、一方主面のニッケルめっき厚みが1μm、他方主面のニッケルめっき厚みが3μmのものを用いた。
比較例1では、両主面のニッケルめっきの厚みが3μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面及び容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
実施例2では、一方主面のニッケルめっきの厚みが0.2μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが0.2μm、容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
実施例3では、一方主面のニッケルめっきの厚みが0.75μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが0.75μm、容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
実施例4では、一方主面のニッケルめっきの厚みが1.5μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1.5μm、容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
比較例2では、一方主面のニッケルめっきの厚みが0.1μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが0.1μm、容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
比較例3では、一方主面のニッケルめっきの厚みが1.6μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1.6μm、容器外側底面の導電金属層の厚みが3μmの外装缶を製造した。
実施例5では、他方主面のニッケルめっきの厚みが2μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1μm、容器外側底面の導電金属層の厚みが2μmの外装缶を製造した。
実施例6では、他方主面のニッケルめっきの厚みが3.5μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1μm、容器外側底面の導電金属層の厚みが3.5μmの外装缶を製造した。
実施例7では、他方主面のニッケルめっきの厚みが5μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1μm、容器外側底面の導電金属層の厚みが5μmの外装缶を製造した。
比較例4では、他方主面のニッケルめっきの厚みが1.5μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側底面の導電金属層の厚みが1μm、容器外側底面の導電金属層の厚みが1.5μmの外装缶を製造した。
実施例8では、両主面の中心線平均粗度(Ra)が0.4μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側表面及び容器外側表面の中心線平均粗度(Ra)が0.4μmの外装缶を製造した。
実施例9では、両主面の中心線平均粗度(Ra)が0.7μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側表面及び容器外側表面の中心線平均粗度(Ra)が0.7μmの外装缶を製造した。
実施例10では、両主面の中心線平均粗度(Ra)が1μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側表面及び容器外側表面の中心線平均粗度(Ra)が1μmの外装缶を製造した。
比較例5では、両主面の中心線平均粗度(Ra)が0.2μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側表面及び容器外側表面の中心線平均粗度(Ra)が0.2μmの外装缶を製造した。
比較例6では、両主面の中心線平均粗度(Ra)が1.2μmのニッケルめっき鋼板を用いたこと以外は、実施例1と同様にして有底筒状容器を形成し、容器内側表面及び容器外側表面の中心線平均粗度(Ra)が1.2μmの外装缶を製造した。
Claims (2)
- 正極と負極とがセパレータを介して積層され、長手方向に巻回され、巻回軸方向の一端面より正極リード端子が突出し、他端面より負極リード端子が突出した電池素子と、
有底筒状をなして上記電池素子を収納する容器部材と、上記容器部材の内面上及び外面上に設けられた導電金属層とを有し、上記電池素子の負極リード端子が内側底面に抵抗溶接により接続され、上記電池素子の他に、電解質塩と有機溶媒とを有する非水電解液を収納する外装缶と、
上記電池素子の正極リード端子が溶接により接続される上記外装缶の開口部を閉塞する封口蓋体とを備え、
上記外装缶は、上記容器部材の上記リード端子が接続される位置の上記導電金属層の厚みが、上記容器部材の内側より外側が厚くされ、且つ上記導電金属層表面の中心線平均粗度(Ra)が、上記容器部の内側と外側とで同じにされ、
上記外装缶は、上記導電金属層表面の中心線平均粗度(Ra)が0.4μm以上、1μm以下の範囲でダル仕上げされており、上記容器部材の上記負極リード端子が接続される位置の上記導電金属層の厚みが、上記容器部材の内側で0.2μm以上、1.5μm以下の範囲にあり、上記容器部材の外側で2μm以上、5μm以下の範囲にある電池。 - 該電池は、リチウムイオン二次電池である請求項1記載の電池。
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JPH06346282A (ja) * | 1993-06-04 | 1994-12-20 | Katayama Tokushu Kogyo Kk | 電池用缶の形成材料及び該材料の製造方法 |
JP2002050324A (ja) * | 2000-08-04 | 2002-02-15 | Toyo Kohan Co Ltd | 電池ケース用表面処理鋼板及び電池ケース |
JP2002155394A (ja) * | 2000-11-14 | 2002-05-31 | Toyo Kohan Co Ltd | 電池ケース用表面処理鋼板、電池ケース用表面処理鋼板の製造方法及び電池ケース |
JP2005085479A (ja) * | 2003-09-04 | 2005-03-31 | Nippon Steel Corp | 非水電解液電池ケース用Niメッキ鋼板およびこの鋼板を用いた電池ケース |
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JPH06346282A (ja) * | 1993-06-04 | 1994-12-20 | Katayama Tokushu Kogyo Kk | 電池用缶の形成材料及び該材料の製造方法 |
JP2002050324A (ja) * | 2000-08-04 | 2002-02-15 | Toyo Kohan Co Ltd | 電池ケース用表面処理鋼板及び電池ケース |
JP2002155394A (ja) * | 2000-11-14 | 2002-05-31 | Toyo Kohan Co Ltd | 電池ケース用表面処理鋼板、電池ケース用表面処理鋼板の製造方法及び電池ケース |
JP2005085479A (ja) * | 2003-09-04 | 2005-03-31 | Nippon Steel Corp | 非水電解液電池ケース用Niメッキ鋼板およびこの鋼板を用いた電池ケース |
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