US 12,322,751 B2
All solid state battery
Ximeng Li, Susono (JP); Masumi Sato, Toyota (JP); Sakina Kaneko, Susono (JP); Tomoya Matsunaga, Susono (JP); So Yubuchi, Susono (JP); Mitsutoshi Otaki, Susono (JP); Hideaki Nishimura, Sunto-gun Shizuoka-ken (JP); Satoshi Wakasugi, Susono (JP); Shohei Kawashima, Susono (JP); and Jun Yoshida, Mishima (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Apr. 20, 2022, as Appl. No. 17/725,153.
Claims priority of application No. 2021-074699 (JP), filed on Apr. 27, 2021.
Prior Publication US 2022/0344706 A1, Oct. 27, 2022
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 50/446 (2021.01); H01M 50/474 (2021.01); H01M 50/586 (2021.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 50/446 (2021.01); H01M 50/474 (2021.01); H01M 50/586 (2021.01); H01M 2300/0068 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An all solid state battery comprising an anode including at least an anode current collector, a cathode, and a solid electrolyte layer arranged between the anode and the cathode; wherein
a protective layer containing a Mg-containing particle that contains at least Mg, and also containing a polymer, is arranged between the anode current collector and the solid electrolyte layer;
the solid electrolyte layer contains a solid electrolyte in a granular shape; and
when X designates an average particle size D50 of the solid electrolyte and Y designates an average thickness of the solid electrolyte layer, X/Y is 0.0125 or more and 0.02 or less.