公开(公告)号：US20240258564A1

公开(公告)日：2024-08-01

申请号：US18555081

申请日：2022-04-12

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Seamus D. Jones ,  Yanqiao Chen ,  Peter Richardson ,  Raphaele Clement ,  Craig J. Hawker ,  Glenn H. Fredrickson ,  Rachel A. Segalman

IPC: H01M10/0565

CPC classification number: H01M10/0565 ,  H01M2300/0082

Abstract: A solid electrolyte including zwitterionic compounds comprising zwitterionic molecules and/or charge neutral polymers with zwitterion pendants. A salt is distributed through the solid such that the solid conducts alkali metal ions obtained from the salt and the zwitterionic compounds each include zero or more amorphous regions and one or more crystalline regions characterized by (1) a presence of Bragg diffraction peaks in an X-ray diffraction measurement of the solid; and (2) the solid having an ion conductivity of at least 10−4 S/cm at a temperature of 50 degrees Celsius when a transport number for the alkali metal ions is at least 0.5 and a molar ratio of the salt to the zwitterionic units is 0.9. The electrolyte exhibits surprisingly high alkali metal ion conductivity and linear elastic modulus over a wide range of practically useful temperatures.

公开(公告)号：US20210284805A1

公开(公告)日：2021-09-16

申请号：US17191422

申请日：2021-03-03

Applicant: The Regents of the University of California

Inventor： Rachel A. Segalman ,  Craig J. Hawker ,  Raphaele Clement ,  Javier Read de Alaniz ,  Nicole Michenfelder-Schauser ,  Peter Richardson ,  Andrei Nikolaev ,  Caitlin Sample ,  Hengbin Wang

IPC: C08G77/32 ,  C08G77/28 ,  C08G77/20 ,  H01M10/0565

Abstract: A composition of matter useful in an electrolyte, comprising a polymer including: a repeat unit, the repeat unit including a backbone section; and a side chain attached to the backbone section, wherein the side chain includes a ligand moiety configured to ionically bond to a lithium ion. The polymer has a glass transition temperature (e.g., less than room temperature) wherein the polymer is in a solid state during operation of a lithium ion battery comprising an electrolyte including the polymer.