JP2021518640A - 固体電池のための固体電解質材料、固体電解質、および固体電池 - Google Patents
固体電池のための固体電解質材料、固体電解質、および固体電池 Download PDFInfo
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- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 58
- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000007787 solid Substances 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002441 X-ray diffraction Methods 0.000 claims abstract description 14
- 239000010936 titanium Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011734 sodium Substances 0.000 claims abstract description 9
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011593 sulfur Substances 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 239000004332 silver Substances 0.000 claims abstract description 4
- 238000009792 diffusion process Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 description 23
- 239000000523 sample Substances 0.000 description 16
- 238000005245 sintering Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000001472 pulsed field gradient Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910018091 Li 2 S Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910012465 LiTi Inorganic materials 0.000 description 1
- -1 Sigma-Aldrich®) Chemical compound 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- GLNWILHOFOBOFD-UHFFFAOYSA-N lithium sulfide Chemical compound [Li+].[Li+].[S-2] GLNWILHOFOBOFD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- CYQAYERJWZKYML-UHFFFAOYSA-N phosphorus pentasulfide Chemical compound S1P(S2)(=S)SP3(=S)SP1(=S)SP2(=S)S3 CYQAYERJWZKYML-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- RCYJPSGNXVLIBO-UHFFFAOYSA-N sulfanylidenetitanium Chemical compound [S].[Ti] RCYJPSGNXVLIBO-UHFFFAOYSA-N 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
- H01M10/052—Li-accumulators
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/14—Sulfur, selenium, or tellurium compounds of phosphorus
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/74—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by peak-intensities or a ratio thereof only
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
Description
固体電池によれば、エネルギー密度の高い組電池を実現できる可能性がある。
よって、本開示の実施形態によれば、固体電池のための固体電解質材料が提供される。この固体電解質材料は、化学式XM2(PS4)3を有し、式中、Pはリンであり、Sは硫黄であり、Xはリチウム(Li)、ナトリウム(Na)、銀(Ag)、またはマグネシウム(Mg0.5)であり、Mはチタン(Ti)、ジルコニウム(Zr)、ゲルマニウム(Ge)、ケイ素(Si)、スズ(Sn)、またはXとアルミニウムとの混合物(X+Al)であり、CuKα線を使用するX線回折測定において2θ=13.64゜(±1゜)、16.48゜(±1゜)、および22.18゜(±1゜)の位置にピークを呈し、IAが13.64°(±1゜)におけるピークの任意単位での強度であり、かつIBが23.34°(±1゜)におけるピークの任意単位での強度である場合に、(IA−IB)/(IA+IB)>0である。
複数の実施形態において、Mはチタンである。
MがXとアルミニウムとの混合物である場合、Xの含有量が増加し、アルミニウムがあるために固体電解質材料の電気化学的安定性が増大する。
複数の実施形態において、Xはリチウムであり、Mはリチウムとアルミニウムとの混合物(Li+Al)である。
I=I0exp(−γ2g2δ2(Δ−δ/3)D) (1)
によって得られ、式中、Iは勾配ありのシグナル強度、I0は拡散強調なしのシグナル強度、γはプロトン磁気回転比、gは勾配パルスの強度、δはパルスの持続時間、Δは2つの勾配パルスの立ち上がりの間の時間、Dは拡散係数である。
また、本開示は、このような固体電解質を含む固体電池をも提供する。
・粉末を混合して粉末混合物を得る工程と、
・粉末混合物を75時間以上500時間以下にわたり焼結プラトー温度において焼結させることによって、固体電解質材料を得る工程とを含み、
固体電解質材料は、CuKα線を使用するX線回折測定において2θ=13.64゜(±1゜)、16.48゜(±1゜)、および22.18゜(±1゜)の位置にピークを呈し、IAが13.64°(±1゜)におけるピークの任意単位での強度であり、かつIBが23.34°(±1゜)におけるピークの任意単位での強度である場合に、(IA−IB)/(IA+IB)>0である、方法をも提供する。
複数の実施形態において、Mはチタンである。
MがXとアルミニウムとの混合物である場合、Xの含有量が増加し、アルミニウムがあるために固体電解質材料の電気化学的安定性が増大する。
複数の実施形態において、Xはリチウムであり、Mはリチウムとアルミニウムとの混合物(Li+Al)である。
以下に、本開示の例示的な実施形態が詳細に参照され、これら実施形態の例が添付の図面中に示される。すべての図面を通して、同一または類似の部品や部分には可能な限り同一の参照番号が用いられている。
試料1および試料2はいずれも、LiTi2(PS4)3固体電解質材料である。
I=I0exp(−γ2g2δ2(Δ−δ/3)D) (1)
によって得られ、式中、Iは勾配ありのシグナル強度、I0は拡散強調なしのシグナル強度、γはプロトン磁気回転比、gは勾配パルスの強度、δはパルスの持続時間、Δは2つの勾配パルスの立ち上がりの間の時間、Dは拡散係数である。
Claims (8)
- 固体電池(10)のための固体電解質材料であって、
化学式XM2(PS4)3を有し、式中、Pはリンであり、Sは硫黄であり、Xはリチウム(Li)、ナトリウム(Na)、銀(Ag)、またはマグネシウム(Mg0.5)であり、Mはチタン(Ti)、ジルコニウム(Zr)、ゲルマニウム(Ge)、ケイ素(Si)、スズ(Sn)、またはXとアルミニウムとの混合物(X+Al)であり、
CuKα線を使用するX線回折測定において2θ=13.64゜(±1゜)、16.48゜(±1゜)、および22.18゜(±1゜)の位置にピークを呈し、
IAが13.64°(±1゜)におけるピークの任意単位での強度であり、かつIBが23.34°(±1゜)におけるピークの任意単位での強度である場合に、(IA−IB)/(IA+IB)>0である、固体電解質材料。 - CuKα線を使用するX線回折測定において2θ=13.64゜(±1゜)、13.76゜(±1゜)、14.72°(±1゜)、15.36゜(±1゜)、15.90゜(±1゜)、16.48゜(±1゜)、17.42゜(±1゜)、17.56゜(±1゜)、18.58゜(±1゜)、および22.18゜(±1゜)の位置にピークを呈する、請求項1に記載の固体電解質材料。
- Xはリチウムである、請求項1または2に記載の固体電解質材料。
- Mはチタンである、請求項1〜3のいずれか1項に記載の固体電解質材料。
- Mはリチウムとアルミニウムとの混合物(Li+Al)である、請求項3に記載の固体電解質材料。
- −20℃における前記固体電解質中でのリチウムの拡散係数は、3.0.10−12m2/s以上である、請求項3に記載の固体電解質材料。
- 請求項1〜6のいずれか1項に記載の固体電解質材料を含む固体電解質(16)。
- 請求項7に記載の固体電解質(16)を含む固体電池(10)。
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PCT/EP2018/057672 WO2019185115A1 (en) | 2018-03-26 | 2018-03-26 | Solid electrolyte material for solid state batteries, solid electrolyte and solid state battery |
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DE112018007355T5 (de) | 2020-12-10 |
US20210005925A1 (en) | 2021-01-07 |
CN111712959A (zh) | 2020-09-25 |
CN111712959B (zh) | 2023-09-05 |
US12040446B2 (en) | 2024-07-16 |
KR20200134244A (ko) | 2020-12-01 |
WO2019185115A1 (en) | 2019-10-03 |
JP7066873B2 (ja) | 2022-05-13 |
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