JP2019207871A - 電池 - Google Patents
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- JP2019207871A JP2019207871A JP2019089469A JP2019089469A JP2019207871A JP 2019207871 A JP2019207871 A JP 2019207871A JP 2019089469 A JP2019089469 A JP 2019089469A JP 2019089469 A JP2019089469 A JP 2019089469A JP 2019207871 A JP2019207871 A JP 2019207871A
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- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims abstract description 187
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 155
- 239000010949 copper Substances 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 38
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 18
- 229910052717 sulfur Inorganic materials 0.000 claims description 18
- 239000011593 sulfur Substances 0.000 claims description 18
- 239000010410 layer Substances 0.000 description 440
- 238000010248 power generation Methods 0.000 description 28
- 239000000203 mixture Substances 0.000 description 16
- 239000007774 positive electrode material Substances 0.000 description 15
- 239000007773 negative electrode material Substances 0.000 description 13
- 239000011149 active material Substances 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000000470 constituent Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000032798 delamination Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000007847 structural defect Effects 0.000 description 4
- 229910000314 transition metal oxide Inorganic materials 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910003480 inorganic solid Inorganic materials 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 229910018130 Li 2 S-P 2 S 5 Inorganic materials 0.000 description 2
- 229910018133 Li 2 S-SiS 2 Inorganic materials 0.000 description 2
- -1 Li 2.9 PO 3.3 N 0.46 Chemical class 0.000 description 2
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000002200 LIPON - lithium phosphorus oxynitride Substances 0.000 description 1
- 229910018091 Li 2 S Inorganic materials 0.000 description 1
- 229910018111 Li 2 S-B 2 S 3 Inorganic materials 0.000 description 1
- 229910018127 Li 2 S-GeS 2 Inorganic materials 0.000 description 1
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910010500 Li2.9PO3.3N0.46 Inorganic materials 0.000 description 1
- 229910009290 Li2S-GeS2-P2S5 Inorganic materials 0.000 description 1
- 229910009324 Li2S-SiS2-Li3PO4 Inorganic materials 0.000 description 1
- 229910009328 Li2S-SiS2—Li3PO4 Inorganic materials 0.000 description 1
- 229910009110 Li2S—GeS2—P2S5 Inorganic materials 0.000 description 1
- 229910009130 Li2S—GeS2—ZnS Inorganic materials 0.000 description 1
- 229910007295 Li2S—SiS2—Li3PO4 Inorganic materials 0.000 description 1
- 229910010199 LiAl Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 229910013716 LiNi Inorganic materials 0.000 description 1
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910013391 LizN Inorganic materials 0.000 description 1
- 229910019942 S—Ge Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OIIFJQJFQZHKMQ-UHFFFAOYSA-N [Ti].[Li].[Li] Chemical compound [Ti].[Li].[Li] OIIFJQJFQZHKMQ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 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
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 229910001386 lithium phosphate Inorganic materials 0.000 description 1
- GLNWILHOFOBOFD-UHFFFAOYSA-N lithium sulfide Chemical compound [Li+].[Li+].[S-2] GLNWILHOFOBOFD-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 239000002203 sulfidic glass Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
- H01M4/5815—Sulfides
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Condensed Matter Physics & Semiconductors (AREA)
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- Cell Electrode Carriers And Collectors (AREA)
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- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
本開示の一態様における電池は、電極層、及び前記電極層の対極として機能する対極層、を含む単電池と、前記電極層を基準として前記対極層とは反対側に位置し、前記電極層と電気的に接続される第1集電体と、前記単電池の側面に接する第1固体電解質層と、硫化銅を含む第1硫化銅層と、を備える。前記第1集電体は、銅を含む。前記第1硫化銅層は、前記第1集電体と前記第1固体電解質層とに接して、前記第1集電体と前記第1固体電解質層との間に位置する。
図1は、実施の形態1における電池1000の概略構成を示す図である。具体的には、図1の(a)は、電池1000の断面図であり、図1の(b)の一点鎖線で示される位置の断面を表している。図1の(b)は、電池1000の上面透視図である。図1の(b)では、電池1000を上方から見た場合における電池1000の各構成要素の平面視形状を実線または破線で表している。
以下、実施の形態2が説明される。なお、以下では、上述の実施の形態1との相違点が中心に説明され、実施の形態1との共通点に関する説明は、適宜省略または簡略化される。
以下、実施の形態3が説明される。なお、以下では、上述の実施の形態1または2との相違点が中心に説明され、実施の形態1または2との共通点に関する説明は、適宜省略または簡略化される。
以下、実施の形態4が説明される。なお、以下では、上述の実施の形態1から3のいずれかとの相違点が中心に説明され、実施の形態1から3のいずれかとの共通点に関する説明は、適宜省略または簡略化される。
以下、実施の形態5が説明される。なお、以下では、上述の実施の形態1から4のいずれかとの相違点が中心に説明され、実施の形態1から4のいずれかとの共通点に関する説明は、適宜省略または簡略化される。
以下に、実施の形態1から4における電池の製造方法の一例が、説明される。
以上、1つまたは複数の態様における電池について、実施の形態に基づいて説明したが、本開示は、これらの実施の形態に限定されるものではない。本開示の主旨を逸脱しない限り、当業者が思いつく各種変形を各実施の形態に施したもの、および、異なる実施の形態における構成要素を組み合わせて構築される形態も、本開示の範囲内に含まれる。
110 電極層
120 対極層
130 第2固体電解質層
200 第1集電体
300 第2集電体
400 第1固体電解質層
500 第1硫化銅層
600 第2硫化銅層
700 第3硫化銅層
800 第4硫化銅層
1000、1100、1200、1300、1400 電池
Claims (12)
- 電極層、及び前記電極層の対極として機能する対極層、を含む単電池と、
前記電極層を基準として前記対極層とは反対側に位置し、前記電極層と電気的に接続される第1集電体と、
前記単電池の側面に接する第1固体電解質層と、
硫化銅を含む第1硫化銅層と、
を備え、
前記第1集電体は、銅を含み、
前記第1硫化銅層は、前記第1集電体と前記第1固体電解質層とに接して、前記第1集電体と前記第1固体電解質層との間に位置する、
電池。 - 前記第1固体電解質層は、硫黄を含む、
請求項1に記載の電池。 - 前記第1固体電解質層は、焼結組織を含む、
請求項1または2に記載の電池。 - 前記単電池は、前記電極層と前記対極層との間に位置する第2固体電解質層をさらに含み、
前記第1固体電解質層は、前記第2固体電解質層に接する、
請求項1から3のいずれかに記載の電池。 - 前記第1固体電解質層と前記第2固体電解質層とは、同じ固体電解質材料を含む、
請求項4に記載の電池。 - 硫化銅を含む第2硫化銅層を、さらに備え、
前記第2硫化銅層は、前記第1集電体と前記電極層とに接して、前記第1集電体と前記電極層との間に位置する、
請求項1から5のいずれかに記載の電池。 - 前記電極層は、硫黄を含む、
請求項6に記載の電池。 - 前記第1硫化銅層の厚さは、前記第2硫化銅層の厚さよりも大きい、
請求項6または7に記載の電池。 - 前記対極層を基準として前記電極層とは反対側に位置し、前記対極層と電気的に接続される第2集電体と、
硫化銅を含む第3硫化銅層と、
をさらに備え、
前記第2集電体は、銅を含み、
前記第3硫化銅層は、前記第2集電体と前記第1固体電解質層とに接して、前記第2集電体と前記第1固体電解質層との間に位置する、
請求項1から8のいずれかに記載の電池。 - 硫化銅を含む第4硫化銅層を、さらに備え、
前記第4硫化銅層は、前記第2集電体と前記対極層とに接して、前記第2集電体と前記対極層との間に位置する、
請求項9に記載の電池。 - 前記対極層は、硫黄を含む、
請求項10に記載の電池。 - 前記第3硫化銅層の厚さは、前記第4硫化銅層の厚さよりも大きい、
請求項10または11に記載の電池。
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