Wet-Chemical Synthesis of Hollow Red-Phosphorus Nanospheres with Porous Shells as Anodes for High-Performance Lithium-Ion and Sodium-Ion Batteries
Wet-Chemical Synthesis of Hollow Red-Phosphorus Nanospheres with Porous Shells as Anodes for High-Performance Lithium-Ion and Sodium-Ion Batteries
复制标题
湿法合成多孔壳空心红磷纳米球作为高性能锂离子和钠离子电池负极
DOI：
10.1002/adma.201700214
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发表时间：
2017
影响因子：
29.4
通讯作者：
Qian Yitai
中科院分区：
文献类型：
--
作者：
Zhou Jianbin;Liu Xianyu;Cai Wenlong;Zhu Yongchun;Liang Jianwen;Zhang Kailong;Lan Yang;Jiang Zhuoheng;Wang Gongming;Qian Yitai
大体积膨胀引起的材料粉碎严重限制了红磷（P）在储能应用中的电化学性能。具有多孔壳的空心纳米球被认为是解决这些问题的理想结构。然而，制备纳米结构红磷的化学合成方法始终具有巨大的挑战，并且尚未制备出红磷的空心纳米球结构。在此，开发了一种湿溶剂热方法，通过气泡引导形成机制成功制造具有多孔壳的空心磷纳米球（HPN）。更重要的是，由于多孔和中空结构的优点，这些HPN在0.2 C下表现出锂离子电池1285.7 mAh g−1的最高容量（基于电极材料的重量）和钠离子电池1364.7 mAh g−1的最高容量，以及优异的长循环性能。
Large‐volume‐expansion‐induced material pulverization severely limits the electrochemical performance of red phosphorous (P) for energy‐storage applications. Hollow nanospheres with porous shells are recognized as an ideal structure to resolve these issues. However, a chemical synthetic approach for preparing nanostructured red P is always of great challenge and hollow nanosphere structures of red P have not yet been fabricated. Herein, a wet solvothermal method to successfully fabricate hollow P nanospheres (HPNs) with porous shells via a gas‐bubble‐directed formation mechanism is developed. More importantly, due to the merits of the porous and hollow structures, these HPNs reveal the highest capacities (based on the weight of electrode materials) of 1285.7 mA h g−1for lithium‐ion batteries and 1364.7 mA h g−1for sodium‐ion batteries at 0.2 C, and excellent long‐cycling performance.