公开(公告)号：US10854929B2

公开(公告)日：2020-12-01

申请号：US14956078

申请日：2015-12-01

申请人： FIELD UPGRADING USA, INC.

发明人： Sai Bhavaraju ,  Mathew Robins ,  Alexis Eccleston

IPC分类号： H01M10/00 ,  H01M10/39 ,  H01M10/054 ,  H01M10/0563 ,  H01M4/38 ,  H01M10/42 ,  H01M2/40 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/36 ,  H01M4/66

摘要： An intermediate temperature sodium-halogen secondary cell that includes a negative electrode compartment housing a negative, molten sodium-based electrode and a positive electrode compartment housing a current collector disposed in a highly conductive molten positive electrolyte. A sodium halide (NaX) positive electrode is disposed in a molten positive electrolyte comprising one or more AlX3 salts, wherein X may be the same or different halogen selected from Cl, Br, and I, wherein the ratio of NaX to AlX3 is greater than or equal to one. A sodium ion conductive solid electrolyte membrane separates the molten sodium negative electrode from the molten positive electrolyte. The secondary cell operates at a temperature in the range from about 80° C. to 210° C.