电解质
离子液体
锂(药物)
电化学
离子电导率
离子
易燃液体
材料科学
储能
化学
化学工程
纳米技术
电极
有机化学
工程类
物理
热力学
物理化学
医学
功率(物理)
内分泌学
催化作用
作者
Weina Deng,Weiming Liu,Hai Zhu,Liang Chen,Haiyang Liao,Han Chen
标识
DOI:10.1016/j.est.2023.108509
摘要
With the expansion of portable devices, high-security and flexible energy storage technologies are gaining popularity. However, because of the use of poisonous, flammable, and unstable organic liquid electrolytes in commercial lithium-ion batteries, they cannot provide sufficient protection for the safety and long-term life of portable devices. A thiolate click reaction and ion interaction are used to successfully create a double cross-linking ionogel electrolyte (DC-Ionogel) by sealing 1-ethyl-3methyimidazolium bis (trifluoromethyl) imide (EMIm(TFSI)) in a double cross-linked network. An ion cross-linking network and a covalent cross-linking network are interlaced in the double cross-linked network, which considerably increased the flexibility and stability of the ionogel electrolyte. As a result, DC-Ionogel outperformed in terms of flame retardancy and thermal dimensional stability and outperformed in terms of electrochemical performance, with higher room ionic conductivity (1.79 × 10−3S cm−1) and a broader electrochemical window (5 V). Due to its excellent performance, it is more likely to be used in flexible energy-storage devices.
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