Journal
MATERIALS RESEARCH BULLETIN
Volume 102, Issue -, Pages 412-417Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2018.02.051
Keywords
Composite polymer electrolyte; Ceramic powder; Solid-state lithium ion battery; Poly (vinylidene fluoride-hexafluoropropylene)
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Funding
- National Natural Science Foundation of China [51728204, 51772272, 51502263]
- Qianjiang Talents Plan D [QJD1602029]
- Startup Foundation for Hundred-Talent Program of Zhejiang University
- Program for Innovative Research Team in University of Ministry of Education of China [IRT13037]
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High-quality solid electrolyte is essential for the growing need of lithium ion batteries. Herein, we report a novel organic-Inorganic composite electrolyte based on Li7La3Zr2O12 ceramic powder incorporated into PVDF-HFP through a simple combined method. At room temperature, the composite polymer electrolyte (CPE) possesses a good ionic transmission improvement of 3.71 x 10(-4) S cm(-1). The CPE behaves a fine lithium ion transference number of 0.58 and an electrochemical window of up to 4.65 V. CPEs display meliorative electrochemical stability compared to pure PVDF-HFP electrolyte. The cathode presents an excellent initial discharge capacity of 163.1 mAh g(-1) at 0.2 C in Li/CPE/LiFePO4 cell. The cell with CPE displays much better capacity retention than that with pure PVDF-HFP electrolyte. The Li7La3Zr2O12 modified PVDF-HFP is a promising electrolyte for lithium ion batteries.
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