我组朱福龙在ACS Appl. Mater. Interfaces上发表论文
High-Performance Metal−Organic Framework-Based Single Ion Conducting Solid-State Electrolytes for Low-Temperature Lithium Metal Batteries | |
作者： | Fulong Zhu,† Hongfei Bao,† Xuesong Wu,† Yanli Tao,† Chao Qin,*,† Zhongmin Su,*,†,‡and Zhenhui Kang*,§ |
单位： | †National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, Jilin 130024, P. R. China ‡Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, P. R. China §Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren’ai Road, Suzhou, Jiangsu 215123, P. R. China |
摘要： | Single-ionic conducting electrolytes are important for the improvement of lithium metal batteries with high energy density and safety. Herein, we propose a newstrategy to anchor a large anionic group on the skeleton of metal−organic frameworks(MOFs) and achieve preeminent single-ionic conducting electrolytes. Utilizing apostsynthetic modification method, the trifluoromethanesulfonyl group is covalentlycoordinated to the amino groups of the UiO-66-NH2 framework. Such a single-ionicconducting solid-state electrolyte (SSE) has a high ionic conductivity (2.07 × 10−4 S cm−1at 25 ℃), a low activation energy of 0.31 eV, a wide electrochemical window up to 4.52 V,as well as a high Li+ transference number of 0.84. Simultaneously, it can effectively inhibitthe formation of lithium dendrite. Solid-state batteries assembled with LiFePO4 as thecathode exhibit outstanding rate performance and cyclic stability, especially for lowtemperature Li-metal batteries at 0 ℃ with trace amounts of propylene carbonate aswetting agents. More importantly, the corresponding all-solid-state batteries based on anMOF-based SSE also have nearly 100% Coulombic efficiency at different current densities. |
影响因子： | 8.758 |
分区情况： | 1区 |
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