Solid electrolyte and lithium based battery using the same

• Main Authors: GAO JIAN, LI JIAN-JUN, WANG LI, HE XIANG-MING, JIANG CHANG-YIN
• Format: Patent
• Language: English
• Published: 27.10.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A solid electrolyte includes an interpenetrating polymer network, a plasticizer and a lithium salt. The plasticizer and the lithium salt are dispersed in the interpenetrating polymer network. The interpenetrating polymer network includes CH2-CH2-On segments, and is formed by polymerizing a first monomer R1-OCH2-CH2-OnR2 with a second monomer R3-OCH2-CH2-OmR4 under an initiator. The "R1", "R2" or "R3" respectively includes -C C- group or -C≡C- group. The "R4" includes an alkyl group or a hydrogen atom. The "m" and "n" are integers. A molecular weight of the first monomer or a molecular weight of the second monomer is greater than or equal to 100, and less than or equal to 800. The first monomer is less than or equal to 50% of the second monomer by weight. The lithium salt is less than or equal to 10% the second monomer by weight. A lithium based battery using the solid electrolyte is also provided.