	US 12,237,504 B2
	Anode material, electrochemical device and electronic device using the same
Daoyi Jiang, Ningde (CN); Hang Cui, Ningde (CN); and Yuansen Xie, Ningde (CN)
Assigned to Ningde Amperex Technology Limited, Ningde (CN)
Appl. No. 17/312,208
Filed by Ningde Amperex Technology Limited, Ningde (CN)
PCT Filed Dec. 17, 2019, PCT No. PCT/CN2019/125945 § 371(c)(1), (2) Date Jun. 9, 2021, PCT Pub. No. WO2020/125621, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 201811541619.8 (CN), filed on Dec. 17, 2018.
Prior Publication US 2022/0052327 A1, Feb. 17, 2022
Int. Cl. H01M 4/48 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01)

CPC H01M 4/48 (2013.01) [H01M 4/0471 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)]

19 Claims

1. An anode material, comprising:

a silicon compound SiO_x, wherein x is about 0.5 to 1.5;

an MeO_ylayer, the MeO_ylayer coating the silicon compound SiO_x, wherein Me comprises at least one of Al, Si, Ti, Mn, V, Cr, Co, and Zr, wherein y is about 0.5 to 3; and

a carbon layer, wherein the carbon layer coats the MeO_ylayer;

wherein the surface of the MeO_ylayer adjacent to the carbon layer has an open pore structure, and at least a part of the open pore structure is filled with the carbon layer; and

wherein a specific surface area of the anode material is about 2 cm²/g to 20 cm²/g.