公开(公告)号：US20200303775A1

公开(公告)日：2020-09-24

申请号：US16899146

申请日：2020-06-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Ma ,  Yangxing Li ,  Dejun Qin

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131

Abstract: A electrolyte additive includes a six-membered ring structure including three nitrogen atoms and three phosphorus (P) atoms, where each P atom includes two substituted groups, and the substituted groups are represented as R1, R2, R3, R4, R5, and R6, at least one substituted group of R1, R2, R3, R4, R5, and R6 is a substituted sulfonic group, and a remaining substituted group is any one selected from fluorine, chlorine, bromine, alkyl, haloalkyl, alkoxy, haloalkoxy, alkeny, haloalkenyl, alkenyloxy, haloalkenyloxy, aryl, haloaryl, aryloxy, haloaryloxy, a substituted phosphate ester group, a substituted imide group, and a substituted sulfonyl imide group.