公开(公告)号：WO2022234557A1

公开(公告)日：2022-11-10

申请号：PCT/IL2022/050400

申请日：2022-04-15

Applicant: RAMOT AT TEL-AVIV UNIVERSITY LTD.

Inventor： PELED, Emanuel ,  MUKRA, Tzach ,  FAKTOROVICH SIMON, Evelina ,  MARRACHE, Roy ,  ASSA, Tamir ,  ALONI, Niv

IPC: H01M10/26 ,  H01M10/0525 ,  H01M10/28 ,  H01M4/134 ,  H01M4/136 ,  H01M4/26 ,  H01M4/36 ,  H01M4/62 ,  H01M4/58

Abstract: An electrochemical cell is described herein, which comprises an anode, cathode and liquid electrolyte, as well as a rechargeable alkali metal ion battery comprising at least one such electrochemical cell. The anode comprises an alkali metal and/or a conductive solid suitable for deposition of the alkali metal thereupon; the cathode comprises a substance capable of reversibly absorbing and releasing ions of the alkali metal; and the liquid electrolyte comprises at least one additive selected from the group consisting of a nanoparticle dispersed in the liquid electrolyte and a polymer dissolved and/or dispersed in the liquid electrolyte. Further described herein is a process for preparing the electrochemical cell by contacting the liquid electrolyte with the cathode and/or said conductive solid, wherein the conductive solid is substantially devoid of the alkali metal, or the conductive solid is coated with a layer of the alkali metal.