The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2025
Filed:
Oct. 31, 2023
Beijing University of Technology, Beijing, CN;
Haijun Yu, Beijing, CN;
Lingqiao Wu, Beijing, CN;
Peipei Ding, Beijing, CN;
Xianwei Guo, Beijing, CN;
Abstract
The invention discloses A preparation method of polyrotaxane polymer electrolyte and its application, and belongs to the technical field of lithium ion batteries. The polyrotaxane polymer is composed of a linear polymer, a cyclic molecule and an end-capping molecule. The polyrotaxane polymer electrolyte is composed of a polyrotaxane polymer, a conductive lithium salt and a porous support material. The polymer electrolyte is simple in preparation process, free of byproducts and excellent in electrochemical performance. The room-temperature ionic conductivity can be greater than 10Scm, and the electrochemical window can be greater than 5V (vs.Li/Li); and the lithium metal battery assembled by the composite material has excellent cycle performance at room temperature. The interfacial compatibility of the polymer electrolyte and the electrode can be obviously improved, so that the electrochemical performance and the safety performance of the battery are improved.