公开(公告)号：US20240417272A1

公开(公告)日：2024-12-19

申请号：US18706637

申请日：2022-10-28

Applicant: EVONIK OPERATIONS GMBH

Inventor： Harald ALFF ,  Jessica ANTONI ,  Silvia BLANK-SHIM ,  Alessandro DANI ,  Regina FUCHS-WINKLER ,  Elisabeth GORMAN ,  Michael HUG ,  Christian HYING ,  Sabrina JURETZKA ,  Huong KLINK-TRAN ,  Theresa KÜSTER ,  Sabine KUZNIK ,  Frank LÖFFLER ,  Heiko MENNERICH ,  Anne MERTLICH ,  Durdu SCHÄFER ,  Franz SCHMIDT ,  Tanja SEITZ ,  Tobias STADTMÜLLER ,  Patrik STENNER ,  Silke SUHR ,  Ryo TAKATA ,  Yikalo-Eyob TECLE ,  Armin WIEGAND

IPC: C01G23/00 ,  H01M4/04 ,  H01M4/58

Abstract: A process for producing a lithium titanium phosphate based solid electrolyte material is disclosed, the process comprising the steps of: (i) providing a solution comprising a Li source material, a Ti source material, a P source material and optionally a Si source material and/or a source material of a metal M, wherein M is selected from the group of Al, Ga, Ge, In, Sc, V, Cr, Mn, Co, Fe, Y, the lanthanides or a combination thereof; (ii) generating an aerosol from the solution; (iii) subjecting the generated aerosol to flame pyrolysis to form a particulate precursor material therefrom; and (iv) subjecting the particulate precursor material to field-assisted sintering to form the lithium titanium phosphate based solid electrolyte material. Furthermore, disclosed are a solid electrolyte material obtainable through said production process and articles comprising the same.