US 11,894,551 B2
Active material, battery, and methods for producing these
Kazuhiro Suzuki, Hadano (JP); and Jun Yoshida, Mishima (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 25, 2021, as Appl. No. 17/329,480.
Claims priority of application No. 2020-098710 (JP), filed on Jun. 5, 2020.
Prior Publication US 2021/0384498 A1, Dec. 9, 2021
Int. Cl. H01M 4/38 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01)
CPC H01M 4/386 (2013.01) [H01M 4/0471 (2013.01); H01M 4/366 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An active material comprising at least Si and Al,
including a silicon clathrate type crystal phase, and
a proportion of the Al to a total of the Si and the Al is 0.1 atm % or more and 1 atm % or less and the active material is represented by Nax (Si, Al)136, where 0≤x≤20.