Sn 定位在金属-有机骨架中增强锂存储稳定性。
Enhanced Li Storage Stability Induced by Locating Sn in Metal-Organic Frameworks.
机构信息
Key Laboratory of Inorganic Nanomaterials of Hebei Province, College of Chemistry and Material Science, Hebei Advance Thin Films Laboratory, College of Physical Science and Information Engineering, National Demonstration Center for Experimental Chemistry Education, Postdoctoral Research Station in Physics, Hebei Normal University, Shijiazhuang, 050016, P. R. China.
Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.
出版信息
Chemistry. 2018 Apr 25;24(24):6330-6333. doi: 10.1002/chem.201800215. Epub 2018 Mar 13.
By locating elemental Sn in an open anionic framework, the particle cracking arising from huge volume expansion of Sn-based anode materials during lithiation/delithiation is alleviated, and the cycling stability is greatly improved. The Sn-based metal-organic framework anode material shows superior cyclic stability, with a capacity retention >92 % (after 200 cycles) and high lithium storage capacity (610 mAh g ).
通过将元素 Sn 定位在开放的阴离子骨架中，缓解了基于 Sn 的阳极材料在锂化/脱锂过程中由于体积膨胀过大而导致的颗粒破裂问题，并显著改善了循环稳定性。基于 Sn 的金属有机骨架阳极材料表现出优异的循环稳定性，容量保持率>92%（经过 200 次循环后），且具有较高的锂存储容量（610 mAh·g）。
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