期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 131, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.inoche.2021.108793
关键词
Ionic conductivity; Composite polymer electrolyte; Ceramic; Separator; Lithium storage
资金
- Science and Technology Commission of Shanghai Municipality [19ZR1418100, 17ZR1410500]
- National Natural Science Foundation of China [21805181, 21601120]
- Shanghai Science and Technology Planning Project [21010500300]
The addition of porous layered g-C3N4 improves the ionic conductivity and lithium ion transference number of the composite polymer electrolyte membrane, leading to a broader electrochemical window and superior electrochemical stability.
Li1.3Al0.3Ti1.7(PO4)3 powder (LATP) is synthesized by high temperature solid phase method, and then a composite polymer electrolyte membrane Poly(Vinylidene Fluoride-Hexafluoropropylene)/LATP/graphitic-C3N4 is prepared by a simple casting method. Then, the influence of porous layered g-C3N4 on the composite polymer electrolyte membrane is studied by morphology characterization and electrochemical measurement. The experimental results show that the addition of g-C3N4 improves the ionic conductivity (2.55 x 10-5 S cm-1) and lithium ion transference number (0.647) of the composite polymer electrolyte membrane (CPE), and the CPE membrane PVDF-HFP/LATP/g-C3N4 has a broad electrochemical window (up to 5.0 V) and superior electrochemical stability.
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