离子液体具有结构可设计性、低蒸汽压及不燃性等优点,作为一种绿色电解质溶剂被电池领域关注。离子液体的加入改善了锂离子电池的热稳定性和电化学性能。离子液体作为电解质可分为单一离子液体电解质、离子液体-有机溶剂电解质、离子液体基凝胶电解质以及功能化离子液体电解质等,引入特殊基团的功能化离子液体有望成为有机溶剂的替代者。今后主要的研究方向是进一步提高功能离子液体的结构稳定性及解决其与石墨电极的匹配性问题等。
Ionic liquids have the advantages of structural design,low vapor pressure,incombustible and so on.As a green electrolyte,it is widely concerned by the battery field.The thermal stability and electrochemical performance of lithium-ion batteries are improved with the addition of ionic liquids.Ionic liquids as electrolytes are divided into pure ionic liquids electrolyte,ionic liquid-organic solvent electrolyte,ionic liquid based on gel electrolyte and functionalized ionic liquids electrolyte,etc.It was pointed out that the functionalized ionic liquids with special groups were expected to be an alternative to organic solvent.So to further improve the structural stability of functional ionic liquids and to solve their matching problems with graphite electrodes were the main research directions in the future.
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基金资助
河北省高等学校科学技术研究项目(ZD2015118)
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