Title:
GLASS-CERAMICS SOLID ELECTROLYTE AND LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/029480
Kind Code:
A1
Abstract:
This glass-ceramics solid electrolyte includes lithium, phosphorus, sulfur, and halogen as constituent elements. The molar ratio (Li/P) of lithium (Li) to phosphorus (P) is 2.0 to 5.3, the molar ratio (S/P) of sulfur (S) to phosphorus (P) is 2.0 to 4.5, and the molar ratio (X/P) of halogen (X) to phosphorus (P) is 0.1 to 2.3. A powder X-ray diffraction analysis using CuKα ray performed on the electrolyte reveals that there is peak A at 2θ = 20±1° position and the powder X-ray diffraction analysis reveals that there is no peak B at 2θ = 23.6±1° position. If there is peak B, the peak intensity ratio (IB/IA) of peak intensity (IB) of peak B to peak intensity (IA) of peak A is less than 0.050. The crystallite size of the electrolyte is 5 nm to 20 nm.
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Inventors:
MASUDA NAOYA (JP)
TERAI KOTA (JP)
TERAI KOTA (JP)
Application Number:
PCT/JP2023/027919
Publication Date:
February 08, 2024
Filing Date:
July 31, 2023
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
H01B1/10; H01B1/06; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2021193192A1 | 2021-09-30 | |||
| WO2022075471A1 | 2022-04-14 |
Foreign References:
| JP2019200851A | 2019-11-21 |
Attorney, Agent or Firm:
HEIWA INTERNATIONAL PATENT OFFICE (JP)
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