公开(公告)号：US11059724B2

公开(公告)日：2021-07-13

申请号：US16528242

申请日：2019-07-31

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Ting Yi ,  Chengbo Zhang ,  Hang Cui ,  Yuansen Xie

IPC: C01B33/20 ,  C01B33/22 ,  C01B33/26 ,  H01M4/1395 ,  H01M10/0525

Abstract: The present application relates to a porous material and preparation methods thereof, and anodes and devices including the same. The porous material provided by the present application includes a material of the formula SiaMbOx, wherein the ratio of x to a is about 0.6 to about 1.5, and the ratio of a to b is about 8 to about 10,000, wherein M includes at least one selected from the group consisting of Al, Si, P, Mg, Ti and Zr. The anode and an electrochemical device including the porous material exhibit higher rate performance, higher first coulombic efficiency, higher cycle stability and lower cycle expansion ratio.

公开(公告)号：US20210328215A1

公开(公告)日：2021-10-21

申请号：US17362581

申请日：2021-06-29

Applicant: Ningde Amperex Technology Limited

Inventor： Chengbo Zhang ,  Ting Yi ,  Hang Cui ,  Yuansen Xie

IPC: H01M4/48 ,  H01M4/04 ,  H01M4/583

Abstract: An anode material includes a lithiated silicon oxide material and a MySiOz layer. The lithiated silicon oxide material includes Li2SiO3, Li2Si2O5 or a combination thereof, and the MySiOz layer coats the lithiated silicon oxide material; M includes Mg, Al, Zn, Ca, Ba, B or any combination thereof; and 0