Solid-state synthesis of uniform Li2MnSiO4/C/graphene composites and their performance in lithium-ion batteries
Solid-state synthesis of uniform Li2MnSiO4/C/graphene composites and their performance in lithium-ion batteries
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均匀Li2MnSiO4/C/石墨烯复合材料的固态合成及其在锂离子电池中的性能
DOI:
10.1016/j.jpowsour.2013.07.079
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发表时间:
2014-01
影响因子:
9.2
通讯作者:
Qian Yitai
中科院分区:
文献类型:
--
作者:
Wang Linlin;Wei Denghu;Liang Qianwen;Qian Yitai
Uniform nanospherical Li2MnSiO4/C/graphene composites have been obtained by polyethylene glycol-600 (PEG-600) assisted solid-state reaction using spherical SiO2as precursor, and heat treatment with the mixed carbon sources (glucose, cellulose acetate and graphene oxide). The transmission electron microscope (TEM) images show that Li2MnSiO4nanospheres with size of 50 nm are embedded in the three-dimensional (3D) nest-like carbon network. Electrochemical measurements reveal that the composites exhibit first discharge capacity of 215.3 mAh g−1under 0.05 C, together with a stable discharge capacity of 175 mAh g−1after 40 cycles. The 3D carbon network and the carbon layer (amorphous carbon and graphene) are favorable for improving the electrochemical performance.
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影响因子:
4.9
作者:
S. Aono;Taisuke Tsurudo;K. Urita;I. Moriguchi
通讯作者:
S. Aono;Taisuke Tsurudo;K. Urita;I. Moriguchi
影响因子:
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作者:
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作者:
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Moran, E.
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8.6
作者:
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通讯作者:
Nazar, Linda F.
影响因子:
17.1
作者:
Wu, Zhong-Shuai;Ren, Wencai;Cheng, Hui-Ming
通讯作者:
Cheng, Hui-Ming