JP6320434B2 - リチウムイオン電池に用いられる負極電極、リチウムイオン電池およびリチウムイオン電池で使用される負極電極サブアセンブリの製造方法 - Google Patents
リチウムイオン電池に用いられる負極電極、リチウムイオン電池およびリチウムイオン電池で使用される負極電極サブアセンブリの製造方法 Download PDFInfo
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- JP6320434B2 JP6320434B2 JP2016000227A JP2016000227A JP6320434B2 JP 6320434 B2 JP6320434 B2 JP 6320434B2 JP 2016000227 A JP2016000227 A JP 2016000227A JP 2016000227 A JP2016000227 A JP 2016000227A JP 6320434 B2 JP6320434 B2 JP 6320434B2
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- lithium ion
- ion battery
- negative electrode
- nanostructure
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- 229910001416 lithium ion Inorganic materials 0.000 title claims description 63
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 24
- 239000011262 electrochemically active material Substances 0.000 claims description 24
- 229910052718 tin Inorganic materials 0.000 claims description 24
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- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- SHXXPRJOPFJRHA-UHFFFAOYSA-K iron(iii) fluoride Chemical compound F[Fe](F)F SHXXPRJOPFJRHA-UHFFFAOYSA-K 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- DEUISMFZZMAAOJ-UHFFFAOYSA-N lithium dihydrogen borate oxalic acid Chemical compound B([O-])(O)O.C(C(=O)O)(=O)O.C(C(=O)O)(=O)O.[Li+] DEUISMFZZMAAOJ-UHFFFAOYSA-N 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- CHJKOAVUGHSNBP-UHFFFAOYSA-N octyl 2,2-dimethylpropanoate Chemical compound CCCCCCCCOC(=O)C(C)(C)C CHJKOAVUGHSNBP-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B3/00—Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/387—Tin or alloys based on tin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
-
- 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
Description
本願は、2010年3月22日出願の米国仮出願61/316,104号"INTERCONNECTING ACTIVE MATERIAL NANOSTRUCTURES(活物質ナノ構造の相互接続)"の優先権を主張するものであり、前記出願の内容は、参照により本明細書に組み込まれる。
なお、本願明細書に記載の実施形態によれば、以下の構成もまた開示される。
[項目1]
リチウムイオン電池で使用されるリチウムイオン電極アセンブリを製造する方法であって、
電気化学的活物質を含むナノ構造体を受容する段階と、
前記ナノ構造の少なくとも一部を電気的に相互接続するべく、前記ナノ構造上にアモルファスシリコン及び/又はゲルマニウムを堆積する段階とを備える方法。
[項目2]
前記電気化学的活物質は、シリコン、ゲルマニウム及びスズからなる一群から選択される項目1に記載の方法。
[項目3]
前記ナノ構造は、平均アスペクト比が少なくとも略4であるナノワイヤを含む項目1に記載の方法。
[項目4]
前記ナノワイヤは、完全放電状態において、略1ナノメータから2000ナノメータの間の平均断面寸法を有する項目3に記載の方法。
[項目5]
前記ナノワイヤは、完全放電状態において、少なくとも略2マイクロメータの長さを有する項目3に記載の方法。
[項目6]
前記アモルファスシリコン及び/又はゲルマニウムを堆積する段階は、
シランを含有する処理ガスを、化学気相成長(CVD)チャンバに流す段階を有する項目1に記載の方法。
[項目7]
前記処理ガスの前記シランの濃度は、略1%から略20%の間である項目6に記載の方法。
[項目8]
前記アモルファスシリコン及び/又はゲルマニウムの堆積の間に、前記ナノ構造は、略200℃から略700℃の間の平均温度に維持される項目1に記載の方法。
[項目9]
前記ナノ構造は、基板に固着され、
前記基板は、銅箔、ステンレススチール箔、ニッケル箔、及び、チタン箔からなる一群から選択される1以上の材料を含む項目1に記載の方法。
[項目10]
前記ナノ構造のうちの少なくとも略10%が基板に固着されている項目9に記載の方法。
[項目11]
前記アモルファスシリコン及び/又はゲルマニウムの少なくとも一部は、前記ナノ構造を機械的に支持し前記ナノ構造と前記基板との間の更なる電気的接続を提供するべく、前記基板上に堆積される項目9に記載の方法。
[項目12]
前記ナノ構造は、バインダによって前記基板に固着され、
前記バインダは、前記アモルファスシリコン及び/又はゲルマニウムの堆積の間に、少なくとも部分的に取り除かれる項目9に記載の方法。
[項目13]
前記ナノ構造の少なくとも一部を電気的に相互接続するべく、前記ナノ構造を圧縮する段階を更に備える項目1に記載の方法。
[項目14]
前記圧縮する段階は、前記ナノ構造を少なくとも略200℃の温度に維持して実行される項目13に記載の方法。
[項目15]
前記圧縮する段階は、前記ナノ構造によって形成される層に電流を流すと同時に実行される項目13に記載の方法。
[項目16]
前記圧縮する段階は、前記アモルファスシリコン及び/又はゲルマニウムを堆積する段階の前に実行される項目13に記載の方法。
[項目17]
リチウムイオン電池で使用されるリチウムイオン電極サブアセンブリであって、
電気化学的活物質を含むナノ構造と、
前記ナノ構造上に堆積され、前記ナノ構造の少なくとも一部を電気的に相互接続するアモルファスシリコン及び/又はゲルマニウムを備えるリチウムイオン電極サブアセンブリ。
[項目18]
電気化学的活物質を含むナノ構造と、
前記ナノ構造上に堆積され、前記ナノ構造の少なくとも一部を電気的に相互接続するアモルファスシリコン及び/又はゲルマニウムを備えるリチウムイオン電池。
[項目19]
リチウムイオン電池で使用されるリチウムイオン電極アセンブリを製造する方法であって、
電気化学的活物質を含み活性層を形成するナノ構造体を受容する段階と、
前記ナノ構造の少なくとも一部を電気的に相互接続するべく、前記活性層上に相互接続材料を堆積する段階とを備え、
前記ナノ構造のうちの少なくとも10%が基板に直接固着されている方法。
[項目20]
前記相互接続材料は、金属含有材料である項目19に記載の方法。
[項目21]
前記相互接続材料は、銅、ニッケル、鉄、クロム、アルミニウム、金、銀、スズ、インジウム、ガリウム及び鉛からなる一群から選択される1以上を含む項目19に記載の方法。
[項目22]
更なる前記ナノ構造を電気的に相互接続し、既に存在する電気接続を更に改善するべく、前記活性層に処理を施す段階を更に備える項目19に記載の方法。
[項目23]
前記活性層に処理を施す段階は、前記活性層を少なくとも200℃に熱する段階を含む項目22に記載の方法。
[項目24]
前記活性層に処理を施す段階は、前記活性層に圧力を加える段階を含む項目23に記載の方法。
[項目25]
前記活性層に処理を施す段階は、前記ナノ構造と金属を含有する前記相互接続材料との間の界面上に、金属シリサイドを形成する段階を含む項目22に記載の方法。
[項目26]
前記電気化学的活物質は、シリコン、ゲルマニウム及びスズからなる一群から選択される項目19に記載の方法。
[項目27]
リチウムイオン電池で使用されるリチウムイオン電極アセンブリを製造する方法であって、
電気化学的活物質を含み、層を形成するナノ構造体を受容する段階と、
前記ナノ構造体を結合し、前記ナノ構造体の少なくとも一部を電気的に相互接続するべく、前記層に電流を流す段階とを備える方法。
[項目28]
前記電流を流す段階は、前記層の圧縮と同時に実行される項目27に記載の方法。
[項目29]
前記電流を流す段階は、前記ナノ構造を少なくとも略200℃の温度に維持して実行される項目27に記載の方法。
Claims (20)
- 導電性基板と、
電気化学的活物質を含む、複数のナノ構造と、
前記複数のナノ構造の少なくとも一部を、コーティングおよび相互接続する相互接続材料の層と
を備え、
前記複数のナノ構造は、前記導電性基板に固着された端部を有し、
前記相互接続材料は、少なくとも電気的導電性および電気化学的活性の一方であり、
前記相互接続材料の層は、複数の金属粒子、複数の金属ナノワイヤおよび金属半田の一以上を有する金属含有材料を含み、
複数の金属粒子、複数の金属ナノワイヤおよび金属半田の前記一以上は、リチウムを含み、
前記複数のナノ構造は、2つの他の寸法よりも大きい1つの主寸法を有する複数のナノワイヤであり、前記主寸法の端部が、前記導電性基板に固着されており、
前記電気化学的活物質は、シリコン、ゲルマニウムおよびスズからなる一群から選択され、
前記複数のナノ構造をコーティングする前記相互接続材料は、
銅、ニッケル、鉄、クロム、アルミニウム、金、銀、スズ、インジウム、ガリウムおよび鉛からなる一群から選択される1以上の金属を含む
リチウムイオン電池に用いられる負極電極。 - 前記複数のナノ構造は、複数の材料を有する、請求項1に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造は、コアシェル構造を有する、請求項1または2に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造は、複数のベースナノ構造および前記電気化学的活物質を有し、
前記複数のベースナノ構造は、前記リチウムイオン電池に用いられる前記負極電極に対して電気化学的容量に寄与しない、請求項1から3のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。 - 前記複数のナノ構造は、シリサイドを有する、請求項1から4のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 前記シリサイドは、ニッケルシリサイドである、請求項5に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造と金属の前記コーティングの材料との間の界面に、シリサイドをさらに有する、請求項1から6のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造は、前記導電性基板に固着されており、
前記導電性基板は、銅箔、ステンレススチール箔、ニッケル箔、および、チタン箔からなる一群から選択される1以上の材料を含む、
請求項1から7のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。 - 前記導電性基板は、スズ、銅、金、および、これらの合金からなる一群から選択される1以上の表面層を含む、請求項1から8のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造と前記導電性基板との間における一部の界面に、相互接続材料がある、請求項8または9に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造と前記導電性基板との少なくとも一部の間にバインダがある、請求項8から10のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- リチウムイオンセルにおいて使用されるサブアセンブリは、前記複数のナノ構造および前記相互接続材料の層を有する、請求項1から11のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノ構造は、平均アスペクト比が少なくとも4である複数のナノワイヤを含む請求項1から12のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノワイヤは、完全に放電された状態において、1から2,000ナノメートルの間の平均断面寸法を有する、請求項13に記載のリチウムイオン電池に用いられる負極電極。
- 前記複数のナノワイヤは、完全に放電された状態において、少なくとも2マイクロメートルの長さを有する、請求項13または14に記載のリチウムイオン電池に用いられる負極電極。
- 前記相互接続材料の層はリチウムを含む、請求項1から15のいずれか一項に記載のリチウムイオン電池に用いられる負極電極。
- 請求項1から16のいずれか一項に記載された第1電極と、
機能において前記第1電極と反対の第2電極と、
前記第1電極と前記第2電極との間におけるイオンの伝達を提供する、前記第1電極と前記第2電極との間の電解質と
を備える、リチウムイオン電池。 - リチウムイオン電池で使用される負極電極サブアセンブリの製造方法であって、
電気化学的活物質を含む複数のナノ構造を受容する段階と、
前記複数のナノ構造の少なくとも一部をコーティングおよび相互接続する、相互接続材料の層を堆積させる段階と
を備え、
前記複数のナノ構造は、基板に固着された端部を有し、
前記相互接続材料は少なくとも電気的導電性および電気化学的活性の一方であり、
前記相互接続材料の層は、複数の金属粒子、複数の金属ナノワイヤおよび金属半田の一以上を有する金属含有材料を含み、
複数の金属粒子、複数の金属ナノワイヤおよび金属半田の前記一以上は、リチウムを含み、
前記複数のナノ構造は、2つの他の寸法よりも大きい1つの主寸法を有する複数のナノワイヤであり、前記主寸法の端部が、前記基板に固着されており、
前記電気化学的活物質は、シリコン、ゲルマニウムおよびスズからなる一群から選択され、
前記複数のナノ構造をコーティングする前記相互接続材料は、
銅、ニッケル、鉄、クロム、アルミニウム、金、銀、スズ、インジウム、ガリウムおよび鉛からなる一群から選択される1以上の金属を含む
製造方法。 - 前記相互接続材料の層および電気化学的活物質は並行して堆積される、請求項18に記載の製造方法。
- 前記複数のナノ構造は、複数のベースナノ構造および前記電気化学的活物質を有し、
前記複数のベースナノ構造の表面を改質する段階と、
前記複数のベースナノ構造の表面の疎水性を変更する段階と
をさらに含む、請求項18または19に記載の製造方法。
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2011
- 2011-03-22 CN CN201180022062.7A patent/CN102884658B/zh active Active
- 2011-03-22 KR KR1020127026806A patent/KR20130012021A/ko not_active Application Discontinuation
- 2011-03-22 JP JP2013501400A patent/JP2013522859A/ja active Pending
- 2011-03-22 US US13/069,212 patent/US20110229761A1/en not_active Abandoned
- 2011-03-22 WO PCT/US2011/029440 patent/WO2011119614A2/en active Application Filing
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JP2016106360A (ja) | 2016-06-16 |
WO2011119614A3 (en) | 2012-01-19 |
WO2011119614A2 (en) | 2011-09-29 |
JP2013522859A (ja) | 2013-06-13 |
CN102884658B (zh) | 2016-09-07 |
EP2550698A2 (en) | 2013-01-30 |
US20110229761A1 (en) | 2011-09-22 |
EP2550698A4 (en) | 2015-04-08 |
CN102884658A (zh) | 2013-01-16 |
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