公开(公告)号：US11145863B2

公开(公告)日：2021-10-12

申请号：US16463789

申请日：2017-11-20

Applicant: Tokyo University of Science Foundation

Inventor： Shinichi Komaba ,  Kei Kubota ,  Kuniko Chihara ,  Akihiro Katogi

IPC: H01M4/58 ,  C01G31/00 ,  H01M10/054 ,  C01B25/455 ,  C01B25/45 ,  H01M4/02

Abstract: Provided is the positive electrode active material for a potassium ion battery according to the embodiment comprises a compound represented by Formula (1), in which M represents at least one element selected from the group consisting of V, Fe, Co, Ni, and Mn, and x represents a number from 0 to 1; and is a positive electrode for a potassium ion battery comprising the positive electrode active material for a potassium ion battery according to the embodiment, or a potassium ion battery comprising the positive electrode for a potassium ion battery. KMOxPO4F1-x  [Formula (1)].