Liquid-Crystalline Electrolytes for Lithium-Ion Batteries: Ordered Assemblies of a Mesogen-Containing Carbonate and a Lithium Salt
Liquid-Crystalline Electrolytes for Lithium-Ion Batteries: Ordered Assemblies of a Mesogen-Containing Carbonate and a Lithium Salt
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DOI：
10.1002/adfm.201402509
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发表时间：
2015-02-25
影响因子：
19
通讯作者：
Kato, Takashi
中科院分区：
文献类型：
--
作者：
Sakuda, Junji;Hosono, Eiji;Kato, Takashi
首次研制了锂离子电池用热致液晶（LC）电解质。具有环状碳酸盐部分的棒状LC分子用于与锂盐形成自组装的二维离子导电途径。液晶具有良好的电化学和热稳定性以及高效的离子导电性能。碳酸盐衍生物与二（三氟甲基磺酰基）亚胺锂的混合物成功地应用于锂离子电池中的电解质。在LC电解质组成的锂离子电池中，观察到正极和负极的可逆充放电。
Thermotropic liquid-crystalline (LC) electrolytes for lithium-ion batteries are developed for the first time. A rod-like LC molecule having a cyclic carbonate moiety is used to form self-assembled two-dimensional ion-conductive pathways with lithium salts. Electrochemical and thermal stability, and efficient ionic conduction is achieved for the liquid crystal. The mixture of the carbonate derivative and lithium bis(trifluoromethylsulfonyl)imide is successfully applied as an electrolyte in lithium-ion batteries. Reversible charge-discharge for both positive and negative electrodes is observed for the lithium-ion batteries composed of the LC electrolyte.