Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
SOLID ELECTROLYTE AND POLYMER LITHIUM ION BATTERY
In order to overcome the problem of low ion conductivity in the existing polymer solid electrolyte, the present invention provides a solid electrolyte, which comprises a polymer, a lithium salt and an additive, wherein the additive is selected from an aprotic organic solvent having the number of carbon atoms less than 10 and a relative dielectric constant higher than 3.6; on the basis of taking the total weight of the solid electrolyte as 100%, the weight content of the lithium salt is 30%-90%, and the weight content of the additive is 0.01%-2%. Meanwhile, the present invention further discloses a polymer lithium ion battery comprising the solid electrolyte. The solid electrolyte in the present invention introduces the aprotic organic solvent with small molecules and high dielectric constant as the additive, can effectively inhibit the crystallization phenomenon in the solid electrolyte, and promote transport of the lithium ions in the electrolyte, thereby realizing the improvement of the ion conductivity of the solid electrolyte at the room temperature.
» Number: WO2020207450A1 (A1)
» Publication Date: 15/10/2020
» Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO LTD?[CN]
» Inventor: LIU ZHONGBO?[CN]; KANG YUANYUAN?[CN] (2)
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
