US 11,799,076 B2
Active material, anode layer, battery, and methods for producing these
Mitsutoshi Otaki, Susono (JP); Jun Yoshida, Mishima (JP); Kazuhiro Suzuki, Hadano (JP); and Masanori Harata, Kariya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Mar. 24, 2021, as Appl. No. 17/210,824.
Claims priority of application No. 2020-058556 (JP), filed on Mar. 27, 2020.
Prior Publication US 2021/0305556 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/00 (2006.01); C01B 33/00 (2006.01); H01B 1/04 (2006.01); H01M 4/38 (2006.01); C01B 33/021 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 10/44 (2006.01)
CPC H01M 4/386 (2013.01) [C01B 33/021 (2013.01); H01B 1/04 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/366 (2013.01); H01M 10/0525 (2013.01); H01M 10/44 (2013.01); C01P 2002/74 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An active material comprising a silicon clathrate II type crystal phase,
including a void inside a primary particle, and
a void amount of the void with a fine pore diameter of 100 nm or less is 0.05 cc/g or more and 0.15 cc/g or less.