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Parker一班

木虫 (正式写手)

水牛生态学家

应助: 6 (幼儿园)
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虫号: 2499414
注册: 2013-06-07
性别: MM
专业: 电化学

[交流] 大牛Haoshen Zhou和Tianyou Zhai最新锂电力作（EES，2015年10月03日）已有7人参与

题目：Layered Phosphorus-Like GeP5: a Promising Anode Candidate with High Initial Coulombic Efficiency and Large Capacity for Lithium Ion Batteries

作者：Wenwu Li,a Huiqiao Li,*a Zhijuan Lu,a Lin Gan,a Linbo Ke,a Tianyou Zhai*a and Haoshen Zhoub
      a State Key Lab of Material Processing and Die & Mould Technology, School of Materials Science and Engineering,
         Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei, P.R. China
      （PS：为何一个“材料加工、钢模、浇注技术省重点实验室”在做什么锂电池呢？这就是所谓的挂羊头卖狗肉么）
      b Energy Technology Research Institute, Nantional Institute of Advanced Industrial Science and Technology (AIST),
         Umezono 1-1-1, Tsukuba 305-8568, Japan
      （PS：貌似这家伙很喜欢招免费劳动力，来者不拒型的）

摘要：In this work, we for the first time investigate GeP5 as an anode material for lithium ion batteries (LIB). By a facile high energy mechanical ball milling (HEMM) method, we successfully synthesize pure GeP5 and GeP5/C nanocomposite at ambient temperature and pressure. According to XRD Rietveld refinement and first principle calculation, GeP5 holds an open two-dimensional layered structure similar to black P and graphite, a high conductivity as 10000 and 10 times of black P and graphite, respectively. Serving as novel anode materials, both GeP5 and its carbon composite deliver an unprecedented high reversible capacity of ca. 2300 mA h g-1, combined with a high initial coulombic efficiency of ca. 95%. Ex-situ XRD and CV tests demonstrate GeP5 undergoes conversion and alloying type lithium storage mechanism that its capacity is co-contributed by both Ge and P components. In addition, GeP5/C exhibits superior cycle stability and excellent high-rate performance with a capacity of 2127 mA h g-1 at 5 A g-1, suggesting their promising application in next-generation high-energy and high-power LIB.

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