JP6608862B2 - ナノ多孔性セパレータ層を利用するリチウム電池 - Google Patents
ナノ多孔性セパレータ層を利用するリチウム電池 Download PDFInfo
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- JP6608862B2 JP6608862B2 JP2017048838A JP2017048838A JP6608862B2 JP 6608862 B2 JP6608862 B2 JP 6608862B2 JP 2017048838 A JP2017048838 A JP 2017048838A JP 2017048838 A JP2017048838 A JP 2017048838A JP 6608862 B2 JP6608862 B2 JP 6608862B2
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- 229910052744 lithium Inorganic materials 0.000 title claims description 98
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 92
- 239000000758 substrate Substances 0.000 claims description 57
- 229910052751 metal Inorganic materials 0.000 claims description 45
- 239000002184 metal Substances 0.000 claims description 45
- 238000000576 coating method Methods 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 33
- 239000011148 porous material Substances 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 229920000620 organic polymer Polymers 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910001593 boehmite Inorganic materials 0.000 claims description 8
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229920005594 polymer fiber Polymers 0.000 claims description 3
- 229920006254 polymer film Polymers 0.000 claims description 2
- 239000005486 organic electrolyte Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 343
- 239000000049 pigment Substances 0.000 description 11
- 239000004033 plastic Substances 0.000 description 11
- 229920003023 plastic Polymers 0.000 description 11
- 239000011263 electroactive material Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 230000032798 delamination Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 241001600434 Plectroglyphidodon lacrymatus Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000012777 electrically insulating material Substances 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
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 229910052806 inorganic carbonate Inorganic materials 0.000 description 1
- 229910052920 inorganic sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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- H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
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- H01M50/463—Separators, membranes or diaphragms characterised by their shape
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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Description
Claims (21)
- (a)第1のカソード層と第2のカソード層との間に置かれるカソード電流コレクタ層と、前記第1のカソード層における前記カソード電流コレクタ層と反対側の側面上に有機ポリマーを含む多孔性セパレータ層と、を備えるセパレータ/カソードアセンブリであって、前記第1のカソード層は前記セパレータ層上に直接コーティングされている、セパレータ/カソードアセンブリと、
(b)第1のアノード層と第2のアノード層との間に置かれるアノード電流コレクタ層と、前記第1のアノード層における前記アノード電流コレクタ層と反対側の側面上に有機ポリマーを含む多孔性セパレータ層と、を備えるセパレータ/アノードアセンブリであって、前記第1のアノード層は前記セパレータ層上に直接コーティングされている、セパレータ/アノードアセンブリと、
(c)有機電解質と、を備えるリチウム電池であって、
前記リチウム電池は、前記セパレータ/カソードアセンブリと前記セパレータ/アノードアセンブリとが交互に重なった層を備える、
リチウム電池。 - 前記カソード電流コレクタ層は、前記第1のカソード層上に直接コーティングされている、請求項1に記載のリチウム電池。
- 前記第2のカソード層は、前記カソード電流コレクタ層上に直接コーティングされている、請求項2に記載のリチウム電池。
- 前記セパレータ/カソードアセンブリの前記セパレータ層は、アルミニウムベーマイトを備える、請求項1に記載のリチウム電池。
- 前記アノード電流コレクタ層は、前記第1のアノード層上に直接コーティングされている、請求項1に記載のリチウム電池。
- 前記第2のアノード層は、前記アノード電流コレクタ層上に直接コーティングされている、請求項5に記載のリチウム電池。
- 前記セパレータ/アノードアセンブリの前記アノード電流コレクタ層は、銅層及びニッケル層から構成された群より選択される金属層を備える、請求項1に記載のリチウム電池。
- 前記セパレータ/アノードアセンブリの前記セパレータ層は、アルミニウムベーマイトを備える、請求項1に記載のリチウム電池。
- 電流発生セル用のセパレータ/アノードアセンブリであって、
アノード層と、
前記アノード層の側面上にある多孔性セパレータ層であって、有機ポリマーと無機酸化物粒子とを含む多孔性セパレータ層と、を備え、
前記アノード層は前記多孔性セパレータ層上に直接コーティングされている、セパレータ/アノードアセンブリ。 - 前記多孔性セパレータ層は、アルミニウムベーマイトを備える、請求項9に記載のセパレータ/アノードアセンブリ。
- アノード電流コレクタ層は、前記多孔性セパレータ層と反対側の側面において、前記アノード層上に直接コーティングされている、請求項9に記載のセパレータ/アノードアセンブリ。
- 電流発生セル用のセパレータ/カソードアセンブリであって、
カソード層と、
前記カソード層の側面上にある多孔性セパレータ層であって、有機ポリマーと無機酸化物粒子とを含む多孔性セパレータ層と、を備え、
前記カソード層は前記多孔性セパレータ層上に直接コーティングされている、セパレータ/カソードアセンブリ。 - 前記多孔性セパレータ層は、アルミニウムベーマイトを備える、請求項12に記載のセパレータ/カソードアセンブリ。
- カソード電流コレクタ層は、前記多孔性セパレータ層と反対側の側面において、前記カソード層上に直接コーティングされている、請求項12に記載のセパレータ/カソードアセンブリ。
- 有機ポリマーを含む多孔性セパレータ層を備えるリチウム電池の製造方法であって、
(a)有機ポリマーを含む多孔性セパレータ層を基板上にコーティングするステップと、
(b)前記セパレータ層の第1の部分に第1のカソード層を直接コーティングするステップと、
(c)1層以上のカソード電流コレクタ層を前記第1のカソード層上に直接コーティングするステップと、
(d)第2のカソード層を前記1層以上のカソード電流コレクタ層上に直接コーティングするステップと、
(e)前記セパレータ層の第2の部分に第1のアノード層を直接コーティングするステップと、
(f)1層以上のアノード電流コレクタ層を前記第1のアノード層上に直接コーティングするステップと、
(g)第2のアノード層を前記1層以上のアノード電流コレクタ層上に直接コーティングするステップと、
を含む、リチウム電池の製造方法。 - ステップ(g)の後に、(h)前記セパレータ層の前記第1の部分及び前記第2の部分から前記基板を層間剥離して、セパレータ/カソードアセンブリ及びセパレータ/アノードアセンブリを形成するステップを含む、請求項15に記載のリチウム電池の製造方法。
- ステップ(h)の後に、(i)前記セパレータ/カソードアセンブリと前記セパレータ/アノードアセンブリとを交互配置して、乾式セパレータ/電極セルを形成するステップを含む、請求項16に記載のリチウム電池の製造方法。
- (1)前記乾式セパレータ/電極セルをケーシング内に入れるステップと、(2)電解質を充填し、封止するステップと、を含む、請求項17に記載のリチウム電池の製造方法。
- ステップ(a)の前記基板は多孔性基板であり、ステップ(d)ではセパレータ/カソードアセンブリを形成し、ステップ(g)ではセパレータ/アノードアセンブリを形成し、
前記セパレータ/カソードアセンブリを前記セパレータ/アノードアセンブリと交互配置して乾式セパレータ/電極セルを形成するステップをさらに含む、請求項15に記載のリチウム電池の製造方法。 - 前記多孔性基板は、多孔性ポリマーフィルム及び多孔性不織ポリマー繊維基板から構成された群より選択される、請求項19に記載のリチウム電池の製造方法。
- 前記アノード層はリチウム金属を含む、請求項9に記載のセパレータ/アノードアセンブリ。
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