The effects of electrolyte on the cyclability of Li/S battery were investigated in this work. The electrochemical properties of single component ether solvents and a binary mixture of ether solvents were studied. These ether-based electrolytes have polysulfide shuttle problems which result in severe low Coulombic efficiency. To overcome these issues, sulfone-based solvent which forms a stable passivation film at the anode surface were used.As a result, the proper composition of sulfone-based electrolyte were obtained. Its capacity and reversible capacity retention were improved to 715 mAh/g and 72.6% which were increased by 52.1% and 63.1%, respectively, compared to those of ether-based electrolyte.
Improved Cyclic Performances of Li-Sulfur Batteries with Sulfone-Based Electrolyte
Sae Technical Papers
SAE 2014 World Congress & Exhibition ; 2014
2014-04-01
Conference paper
English
Improved Cyclic Performances of Li-Sulfur Batteries with Sulfone-Based Electrolyte
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