US 12,456,727 B2
Coated anode active material and all solid state battery
Heidyhodex Visbalmendoza, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 2, 2022, as Appl. No. 17/902,291.
Claims priority of application No. 2021-148503 (JP), filed on Sep. 13, 2021.
Prior Publication US 2023/0079447 A1, Mar. 16, 2023
Int. Cl. H01M 4/38 (2006.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01)
CPC H01M 4/386 (2013.01) [H01M 4/366 (2013.01); H01M 4/485 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A coated anode active material comprising:
a Si-based active material; and
a coating layer that coats at least a part of a surface of the Si-based active material and
includes a lithium titanate; wherein
an amorphous silicon oxide layer is formed between the Si-based active material and the coating layer, and
an average particle size (D50) of the Si-based active material is 1 μm or more.