电解质
材料科学
电化学
聚偏氟乙烯
离子电导率
电池(电)
电化学窗口
化学工程
六氟丙烯
锂(药物)
复合数
纤维
锂电池
电导率
离子液体
离子键合
电极
复合材料
化学
聚合物
离子
有机化学
物理化学
内分泌学
工程类
功率(物理)
量子力学
催化作用
医学
物理
四氟乙烯
共聚物
作者
Wanqing Fan,Ying Huang,M. H. Gu,Xu Li,Kaihang She,Zheng Zhang
出处
期刊:Energy & Fuels
[American Chemical Society]
日期:2023-10-10
卷期号:37 (20): 16143-16149
标识
DOI:10.1021/acs.energyfuels.3c02989
摘要
Solid-like electrolytes (SLEs) based on metal–organic frameworks (MOFs) have attracted much attention due to their combination of the advantages of solid electrolytes and liquid electrolytes (LEs). Most MOF-based electrolytes using organic LEs cannot fundamentally solve the safety problems of lithium-metal batteries (LMBs), and the ionic conductivity (IC) and mechanical properties of the electrolytes should be improved. In this paper, Li-containing ionic liquids-impregnated polyvinylidene fluoride-hexafluoropropylene fiber network-loaded ZIF-8 nanoparticle electrolyte film was designed. The SLEs have excellent properties such as an IC of 2.94 × 10–3 S cm–1 at 30 °C, electrochemical stability window (5.37 V), Li+ transference number (0.56), and mechanical strength. In addition, the LFP/Li battery assembled with this electrolyte has a capacity retention rate of 93.03% after 200 cycles at 0.2C. The assembled Li symmetrical battery exhibits excellent Li plating/stripping performance for 2000 h at 0.2 mA cm–2/0.1 mA h cm–2.
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