【摘 要】
：
固态锂硫(Li-S)电池通过固态电解质代替传统液态电解液体系,有望同时解决液态Li-S电池多硫化物的穿梭效应、锂金属与液态电解液的副反应、安全性能差等关键科学问题,发挥其高
【机 构】
：
浙江大学化学工程与生物工程学院,浙江杭州310007;浙江大学衢州研究院,浙江衢州324000
论文部分内容阅读
固态锂硫(Li-S)电池通过固态电解质代替传统液态电解液体系,有望同时解决液态Li-S电池多硫化物的穿梭效应、锂金属与液态电解液的副反应、安全性能差等关键科学问题,发挥其高稳定性、高能量密度的优势.然而,固态Li-S电池在固态电解质和电极/电解质界面问题上面临着巨大挑战,本文详细介绍了硫化物固态电解质和聚合物基体电解质在Li-S电池中的研究进展,并重点分析了电极/电解质固-固界面接触问题.针对硫化物固态电解质存在的本征缺陷,阐述了改善固态电解质化学及电化学稳定性的方法;针对有机聚合物电解质,总结分析了影响其离子电导率的关键因素及提升方法.在电极/电解质界面问题方面,揭露了影响界面离子传输及界面稳定性的本征特性,并总结了近年来报道的针对正(负)极/电解质界面离子传输低的改进方法.最后指出要有针对性的解决不同种类电解质的本征缺陷,并结合科学模拟深入研究界面传输机制,在实践中对电极/电解质界面结构的合理设计,对固态Li-S电池的实用化具有重要意义.
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