Benefits of the Mixtures of Ionic Liquid and Organic Electrolytes for Sodium-ion Batteries
Benefits of the Mixtures of Ionic Liquid and Organic Electrolytes for Sodium-ion Batteries
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离子液体和有机电解质混合物对钠离子电池的益处
DOI：
10.1149/1945-7111/abe8bb
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发表时间：
2021-03-01
影响因子：
3.9
通讯作者：
Hagiwara, Rika
中科院分区：
文献类型：
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作者：
Hwang, Jinkwang;Yang, Huan;Hagiwara, Rika
钠离子电池的成功商业化在很大程度上取决于合适的电解液的开发，这些电解液具有经济可行性和稳定的电化学性能。为此，我们提出了一组由[C(3)C(1)Prr][FSA](C(3)C(1)Prr=N-甲基-N-丙基吡咯烷)离子液体(IL)和碳酸亚丙酯有机液体(OL)电解质与Na[FSA](FSA=双(氟磺酸)酰胺)和Na[ClO4]盐混合制成的混合电解质，探索了降低成本、高性能和阻燃的可能性。热稳定性测试表明，IL的加入能有效抑制材料的易燃性。本文研究了不同配比的混合电解液(ILOL)在钠离子电池中的物理化学和电化学性能。此外，使用ILOL系统的硬碳(HC)负极和NaCrO2(NCO)正极的全电池测试改善了电化学性能，使电池能够在363K下运行。
The successful commercialization of sodium-ion batteries is heavily contingent on the development of suitable electrolytes marked with economic feasibility and stable electrochemical performance. To this end, we present a group of hybrid electrolytes made from the [C(3)C(1)pyrr][FSA] (C(3)C(1)pyrr = N-methyl-N-propylpyrrolidinium) ionic liquid (IL) and propylene carbonate organic liquid (OL) electrolytes with Na[FSA] (FSA = bis(fluorosulfonyl)amide) and Na[ClO4] salts are mixed with exploring the possibilities of cost reduction, high performance and inhibited flammability. The thermal stability tests reveal that the addition of IL can effectively suppress flammability. Herein, the physicochemical and electrochemical properties of the various mixing ratios of the aforementioned hybrid electrolytes (ILOL) are investigated for sodium-ion batteries. Furthermore, full cell tests using hard carbon (HC) negative and NaCrO2 (NCO) positive electrodes using the ILOL systems improve electrochemical performance and enable battery operation at 363 K.