VOPO4 nanosheets as anode materials for lithium-ion batteries.
VOPO4 nanosheets as anode materials for lithium-ion batteries.
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DOI：
10.1039/c4cc03781b
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发表时间：
2014-08
影响因子：
4.9
通讯作者：
Bao Zhang;Ya-dong Han;Jun‐chao Zheng;Jia-feng Zhang;Chao Shen;Lei Ming;Xin-bo Yuan;Hui Li
中科院分区：
文献类型：
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作者：
Bao Zhang;Ya-dong Han;Jun‐chao Zheng;Jia-feng Zhang;Chao Shen;Lei Ming;Xin-bo Yuan;Hui Li
采用水热煅烧法制备了voop4纳米片。XRD结果表明，所得产物在正交相VOPO4中结晶。SEM和TEM图像表明，VOPO4产品具有独特的纳米片形貌。电化学测试表明，VOPO4纳米片作为阳极材料具有优异的电化学性能。在0.1℃条件下具有1356 mA h g（-1）的初始放电容量，在0.2、1、2℃条件下具有良好的放电容量，合成的VOPO4可作为良好的阳极材料；此外，纳米片结构可以有效地提高该材料的电化学性能。
VOPO4 nanosheets are successfully synthesized using a hydrothermal method followed by calcination. The XRD results reveal that obtained products are crystallized in the orthorhombic VOPO4 phase. SEM and TEM images demonstrate that VOPO4 products possess unique nanosheet morphology. Electrochemical tests show that the VOPO4 nanosheets exhibit an excellent electrochemical performance as anode materials. They can deliver an initial discharge capacity of 1356 mA h g(-1) at 0.1 C, and possess a favorable capacity at rates of 0.2, 1, and 2 C. The synthesized VOPO4 can be used as a good anode material; furthermore, the nanosheet structure can effectively improve the electrochemical performance of this material.