公开(公告)号：US20210408536A1

公开(公告)日：2021-12-30

申请号：US16911986

申请日：2020-06-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meinan He ,  Jin Liu ,  Xingcheng Xiao ,  Mei Cai

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/62

Abstract: An electrode includes a domain material present in an amount of from about 90 to about 95 weight percent based on a total weight of the electrode. The domain material includes a component that has the formula: xLi2MnO3.(1−x)LiNiaMnbCo(1-a-b)O2, wherein x is greater than 0 and less than 1 and each of a and b is independently from about 0.1 to about 0.9 and the component is present in an amount of from about 50 to about 90 weight percent based on a total weight of the domain material. The domain material also includes an additive component having the formula LiFe1-yMnyPO4, wherein y is greater than 0 and less than 1, wherein the additive component is present in an amount of from about 10 to about 50 weight percent based on a total weight of the domain material. The electrode itself further includes a carbonaceous material and a binder.

公开(公告)号：US11417888B2

公开(公告)日：2022-08-16

申请号：US16573605

申请日：2019-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Jin Liu ,  Jiagang Xu ,  Mei Cai ,  Sherman H. Zeng

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/60 ,  H01M4/137 ,  H01M4/1391 ,  H01M4/1399 ,  H01M4/02

Abstract: An electrode including an electrode active material and a ceramic hydrofluoric acid (HF) scavenger is provided. The ceramic hydrofluoric acid (HF) scavenger includes M2SiO3, MAlO2, M2O—Al2O3—SiO2, or combinations thereof, where M is lithium (Li), sodium (Na), or combinations thereof. Methods of making the electrode are also provided.