Tetrazole Tethered Polyacrylonitrile Based Gel Polymer Electrolyte for Lithium-ion Batteries
발표자
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초록
내용
Gel polymer electrolyte (GPE) based Li-ion battery application have been studied seriously so far. However polymer based GPE exhibit low Li-ion conductivity and mechanical stability, which may be related their limited electrolyte uptake. To solve this problem, I propose to investigate tetrazole tethered PANVDA GPE to gain a better understanding on the effect of interactions between polar nitrile functions and tetrazole functions with lithium ions. The GPEs with a proper amount of liquid electrolyte exhibited a desirable ionic conductivity of 1.22 X 10-3 S/cm -1 at 25 ℃, The objective of this study was to correlate the interactions and the electrolyte uptake to the GPE’s electrochemical properties to determine which ratio of PANVDA composition is most favorable to enhancing GPE conductivity. Finally, the PANVDAC GPE was tested in a half cell with lithium metal and LTO composite electrodes leading to a capacity of 127 mAh/g at a discharge rate of 0.5C after 100cycle.