期刊
ACS APPLIED ENERGY MATERIALS
卷 2, 期 5, 页码 3028-3034出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b00440
关键词
single lithium-ion conductor; polymer electrolytes; lithium metal batteries; lithium-ion transference number; membrane
资金
- National Science Foundation for Distinguished Young Scholars [21525419]
- Ministry of Science and Technology of the People's Republic of China [2016YFA0202503]
- Science and Technology Commission Foundation of Tianjin [15JCZDJC40800]
Synthesis of single lithium-ion conducting polymer electrolyte membrane (SLIC-PEM) composed of polymerized lithium 4-styrenesulfonyl(trifluoromethylsulfonyl)imide (PLiSTFSI), poly-(ethylene glycol) methyl ether methacrylate (PEGM), poly(ethylene glycol) dimethacrylate (PEGDMA), and ethylene carbonate (EC) is reported. SLIC-PEM combines the advantages of single lithium-ion conducting polymer electrolytes, cross-linked flexible polymer electrolytes, and the liquid electrolyte of carbonate. The synthesized SLIC-PEMs have superior thermostability, high ionic conductivity, a wide electrochemical window, and high lithium-ion transference number. The corresponding LiFePO4 vertical bar SLIC-PEM vertical bar Li cell delivers high Coulombic efficiency and excellent discharge capacity and cycling performance, demonstrating that SLIC-PEMs will have promising application in next-generation safe lithium metal batteries.
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