Title:
ALL-SOLID-STATE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/184718
Kind Code:
A1
Abstract:
This all-solid-state secondary battery (1) comprises a positive electrode active material layer (2b), a negative electrode active material layer (3b), and a solid electrolyte layer (4) interposed between the positive electrode active material layer (2b) and the negative electrode active material layer (3b). The solid electrolyte layer (4) has solid electrolyte particles (11) and secondary phase particles (12). The secondary phase particles (12) are configured from any of an oxide including at least one selected from Ti, Ca, Zr, Al, Li, V, Nb, La, Sr, Si, B, and P, a phosphorus oxide, a sulfide, and glass, the secondary phase particles having a different composition from the solid electrolyte particles (11), and having a CV value of 1.0 or less when the degree of dispersion of secondary phase particles (12) having a grain size of 3 nm or greater is derived by the quadrat method.
Inventors:
TAKEUCHI KEIKO (JP)
UENO TETSUYA (JP)
ISOMICHI GAKUHO (JP)
UENO TETSUYA (JP)
ISOMICHI GAKUHO (JP)
Application Number:
PCT/JP2020/011239
Publication Date:
September 17, 2020
Filing Date:
March 13, 2020
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
C01B25/30; C01B25/32; C01B25/36; C01B25/45; C01B33/18; C01B33/20; C01F7/02; C01F11/00; C01F17/00; C01G23/047; C01G25/00; C01G25/02; C01G31/02; C01G33/00; H01M10/0562
Foreign References:
| JP2016081905A | 2016-05-16 | |||
| JP2018152325A | 2018-09-27 | |||
| JP2009064645A | 2009-03-26 | |||
| JP2013157195A | 2013-08-15 | |||
| JP2017073201A | 2017-04-13 | |||
| JP2016056054A | 2016-04-21 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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