锂空气电池用离子液体基复合电解液的性能
发布时间：2018-10-20 13:52
【摘要】：针对运行过程中有机电解液易挥发导致电池失效的现象,设计一种适用于锂空气电池的复合电解质材料。采用离子液体1-乙基-3-甲基咪唑四氟硼酸盐([Emim]BF_4)与碳酸酯类(EC+EMC+DMC)作为主体溶剂,亲水型LiBF_4与疏水型LiPF_6作为溶质,四氟硼酸螺环季铵盐作为添加剂制备复合电解液。组装的锂空气电池在低电流密度(0.01 mA/cm~2)下表现出较好的电化学性能,放电比容量可达2 960 mAh/g,比能量达到6 810 Wh/kg。
[Abstract]:A composite electrolyte material suitable for lithium air battery was designed in view of the phenomenon that the volatile organic electrolyte leads to battery failure during operation. The composite electrolyte was prepared by using ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim] BF_4) and carbonate (EC EMC DMC) as main solvent, hydrophilic LiBF_4 and hydrophobic LiPF_6 as solute and tetrafluoroboric acid spin-quaternary ammonium salt as additives. The assembled lithium air battery exhibits good electrochemical performance at low current density (0. 01 mA/cm~2), with a specific discharge capacity of 2 960 mAh/g, and a specific energy of 6 810 Wh/kg..
【作者单位】： 渤海大学化学化工学院;渤海大学新能源学院;中国石油天然气股份有限公司锦州石化分公司;
【基金】：国家自然科学基金(21373002,21206083) 辽宁省高校优秀人才支持计划第一层次项目(LR2014033)
【分类号】：TM911.41
，
本文编号：2283371
[Abstract]:A composite electrolyte material suitable for lithium air battery was designed in view of the phenomenon that the volatile organic electrolyte leads to battery failure during operation. The composite electrolyte was prepared by using ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim] BF_4) and carbonate (EC EMC DMC) as main solvent, hydrophilic LiBF_4 and hydrophobic LiPF_6 as solute and tetrafluoroboric acid spin-quaternary ammonium salt as additives. The assembled lithium air battery exhibits good electrochemical performance at low current density (0. 01 mA/cm~2), with a specific discharge capacity of 2 960 mAh/g, and a specific energy of 6 810 Wh/kg..
【作者单位】： 渤海大学化学化工学院;渤海大学新能源学院;中国石油天然气股份有限公司锦州石化分公司;
【基金】：国家自然科学基金(21373002,21206083) 辽宁省高校优秀人才支持计划第一层次项目(LR2014033)
【分类号】：TM911.41
，
本文编号：2283371
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