Title:
SOLID ELECTROLYTE FOR SECONDARY BATTERY, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/171236
Kind Code:
A1
Abstract:
An oxide-based solid electrolyte having a pyrochlore structure and represented by a compositional formula of Aa2-αAb(1+α)/3B2O7-βXβ is used as a solid electrolyte for a secondary battery. Aa is an alkali metal. Ab includes at least lanthanoid. B is a cationic metal different from Aa and Ab. X is an anion that can be substituted with an O atom constituting the pyrochlore structure.
Inventors:
YOSHIDA SHUHEI (JP)
ONODERA HITOSHI (JP)
SHIMONISHI YUTA (JP)
ONODERA HITOSHI (JP)
SHIMONISHI YUTA (JP)
Application Number:
PCT/JP2023/004539
Publication Date:
September 14, 2023
Filing Date:
February 10, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01M10/0562; C01G33/00; C04B35/50; H01B1/06; H01M10/052; H01M10/054
Other References:
CYRILLE GALVEN; CHRISTOPHE LEGEIN; MONIQUE BODY; JEAN‐LOUIS FOURQUET; JEAN‐YVES BUZARÉ; FRANÇOISE LE BERRE; MARIE‐PIERRE CROSNIER‐: "New Oxyfluoride Pyrochlores Li2–xLa(1+x)/3□(2x–1)/3B2O6F (B = Nb, Ta): Average and Local Structure Characterization by XRD, TEM and 19F Solid‐State NMR Spectroscopy", EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, WILEY-VCH VERLAG , WENHEIM, DE, vol. 2010, no. 33, 11 October 2010 (2010-10-11), DE , pages 5272 - 5283, XP072126714, ISSN: 1434-1948, DOI: 10.1002/ejic.201000599
PHRAEWPHIPHAT THANYA, IQBAL MUHAMMAD, SUZUKI KOTA, HIRAYAMA MASAAKI, KANNO RYOJI: "Synthesis and Lithium-Ion Conductivity of LiSrB2O6F (B = Nb5+, Ta5+) with a Pyrochlore Structure", JOURNAL OF THE JAPAN SOCIETY OF POWDER AND POWDER METALLURGY, FUNTAI FUNMATSU YAKIN KYOKAI, JP, vol. 65, no. 1, 3 February 2018 (2018-02-03), JP , pages 26 - 33, XP009531967, ISSN: 0532-8799, DOI: 10.2497/jjspm.65.26
PHRAEWPHIPHAT THANYA, IQBAL MUHAMMAD, SUZUKI KOTA, HIRAYAMA MASAAKI, KANNO RYOJI: "Synthesis and Lithium-Ion Conductivity of LiSrB2O6F (B = Nb5+, Ta5+) with a Pyrochlore Structure", JOURNAL OF THE JAPAN SOCIETY OF POWDER AND POWDER METALLURGY, FUNTAI FUNMATSU YAKIN KYOKAI, JP, vol. 65, no. 1, 3 February 2018 (2018-02-03), JP , pages 26 - 33, XP009531967, ISSN: 0532-8799, DOI: 10.2497/jjspm.65.26
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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