【摘 要】
：
A facile one-pot synthesis of solid polymer electrolytes (SPEs),composed of carbonate terminated poly(ethylene glycol) (CH3O-PEG-IC),poly(ethylene glycol)-block-polystyrene (PEG-b-PS) block copolymer nanoparticles containing a conductive PEG corona,fumed
【机 构】
：
Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Ch
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A facile one-pot synthesis of solid polymer electrolytes (SPEs),composed of carbonate terminated poly(ethylene glycol) (CH3O-PEG-IC),poly(ethylene glycol)-block-polystyrene (PEG-b-PS) block copolymer nanoparticles containing a conductive PEG corona,fumed SiO2 and LiTFSI salt via polymerization-induced self-assembly is proposed.This method to prepare SPEs has the advantages of one-pot convenient synthesis,avoiding use of organic solvent and conveniently adding inorganic additives.CH3O-PEG-IC combines advantages of PEG and polycarbonate,the in situ synthesized PEG-b-PS nanoparticles containing a rigid polystyrene (PS) core and a PEG corona guarantee continuous lithium ion transport in the synthesized SPEs,and the fumed SiO2 optimizes the interfacial properties and improves the electrochemical stability,all of which afford SPEs a well considerable room temperature ionic conductivity of 1.73 × 10-4 S/cm,high lithium transference number of 0.53,and wide electrochemical stability window of 5.5V (vs.Li+/Li).By employing these SPEs,the assembled solid state cells of LiFePO4｜SPEs｜Li exhibit considerable cell performance.
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