Title:
OXIDE SINTERED BODY AND METHOD FOR PRODUCING OXIDE SINTERED BODY
Document Type and Number:
WIPO Patent Application WO/2023/243327
Kind Code:
A1
Abstract:
The present invention provides: an oxide sintered body which has a crystal structure that is capable of enhancing the lithium ion conductivity; and a method for producing an oxide sintered body, the method being capable of building the crystal structure. This oxide sintered body contains lithium, tantalum and phosphorus, while having a crystal structure belonging to the monoclinic space group C2/c; and lithium atoms do not occupy the Wyckoff position 4b (0.5, 0, 0). This method for producing an oxide sintered body comprises a sintering step in which an oxide that contains lithium, tantalum and phosphorus is fired at a temperature that is higher than 1200°C but not higher than 1400°C.
Inventors:
AKIMOTO JUNJI (JP)
KATAOKA KUNIMITSU (JP)
KIMU YONSUKKU (JP)
KATAOKA KUNIMITSU (JP)
KIMU YONSUKKU (JP)
Application Number:
PCT/JP2023/019096
Publication Date:
December 21, 2023
Filing Date:
May 23, 2023
Export Citation:
Assignee:
AIST (JP)
International Classes:
C04B35/447; C01B25/45; C30B28/02; C30B29/14; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2022201755A1 | 2022-09-29 | |||
| WO2022138804A1 | 2022-06-30 |
Foreign References:
| JP2021534064A | 2021-12-09 | |||
| JP2020194773A | 2020-12-03 | |||
| JP2021038100A | 2021-03-11 | |||
| JP2021038099A | 2021-03-11 | |||
| JP2023033898A | 2023-03-13 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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