RU2019130768A - Способ получения твердого электролита на основе lgps - Google Patents

Способ получения твердого электролита на основе lgps Download PDF

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RU2019130768A
RU2019130768A RU2019130768A RU2019130768A RU2019130768A RU 2019130768 A RU2019130768 A RU 2019130768A RU 2019130768 A RU2019130768 A RU 2019130768A RU 2019130768 A RU2019130768 A RU 2019130768A RU 2019130768 A RU2019130768 A RU 2019130768A
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crystals
lgps
solid electrolyte
electrolyte based
tetrahedron
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Аки КАТОРИ
Котаро КАВАКАМИ
Масахиро СИМАДА
Юки ТАКАСЭ
Томохиро ИТО
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Мицубиси Газ Кемикал Компани, Инк.
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Claims (12)

1. Способ получения твердого электролита на основе LGPS, включающий:
смешивание кристаллов Li3PS4, имеющих пик на рамановском спектре при 420±10 см-1, и кристаллов Li4MS4 (М выбран из группы, состоящей из Ge, Si и Sn) при сохранении кристаллов для синтеза предшественника; и
термическую обработку предшественника при температуре от 300 до 700°С.
2. Способ по п. 1, включающий синтез кристаллов Li4MS4 из кристаллов Li2S и сульфидных кристаллов, представленных структурой MS2 (М выбран из группы, состоящей из Ge, Si и Sn).
3. Способ получения твердого электролита на основе LGPS, включающий:
смешивание кристаллов Li3PS4, имеющих пик на рамановском спектре при 420±10 см-1, кристаллов Li2S и сульфидных кристаллов, представленных структурой MS2 (М выбран из группы, состоящей из Ge, Si и Sn), при сохранении кристаллов для синтеза предшественника; и
термическую обработку предшественника при температуре от 300 до 700°С.
4. Способ по любому из пп. 1-3, отличающийся тем, что твердый электролит на основе LGPS имеет пики при по меньшей мере 2θ=20,18°±0,50°, 20,44°±0,50°, 26,96°±0,50° и 29,58°±0,60° на диаграмме рентгеновской дифракции (CuKα: λ=1,5405
Figure 00000001
).
5. Способ по п. 4, отличающийся тем, что когда интенсивность дифракции пика при 2θ=29,58°±0,60° обозначена как IA, и интенсивность дифракции пика при 2θ=27,33°±0,50° обозначена как IB, то IB/IA составляет менее 0,50.
6. Способ по любому из пп. 1-5, отличающийся тем, что твердый электролит на основе LGPS содержит октаэдр О, состоящий из элемента Li и элемента S, тетраэдр T1, состоящий из по меньшей мере одного элемента, выбранного из группы, состоящей из Р, Ge, Si и Sn, и элемента S, и тетраэдр Т2, состоящий из элемента Р и элемента S, и имеет, главным образом, кристаллическую структуру, в которой тетраэдр T1 и октаэдр О имеют общее ребро, и тетраэдр Т2 и октаэдр О имеют общую вершину.
7. Способ по любому из пп. 1-6, отличающийся тем, что кристаллы Li3PS4 представляют собой кристаллы β-Li3PS4.
8. Способ по любому из пп. 1-7, отличающийся тем, что термическую обработку проводят в атмосфере инертного газа.
RU2019130768A 2017-03-22 2018-03-16 Способ получения твердого электролита на основе lgps RU2754868C2 (ru)

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TWI733998B (zh) 2021-07-21
JP6996553B2 (ja) 2022-02-04
US10930973B2 (en) 2021-02-23
CN110431703B (zh) 2022-03-22
JPWO2018173939A1 (ja) 2020-01-30
RU2754868C2 (ru) 2021-09-08
EP3605703A1 (en) 2020-02-05
PL3605703T3 (pl) 2021-10-25
KR102452778B1 (ko) 2022-10-07
RU2019130768A3 (ru) 2021-05-28
US20200020977A1 (en) 2020-01-16
HUE054696T2 (hu) 2021-09-28
EP3605703A4 (en) 2020-03-25
EP3605703B1 (en) 2021-04-21
KR20190127851A (ko) 2019-11-13
TW201842705A (zh) 2018-12-01
WO2018173939A1 (ja) 2018-09-27

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