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首页> 外文期刊>Journal of power sources >Nano-structured spherical porous SnO_2 anodes for lithium-ion batteries
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Nano-structured spherical porous SnO_2 anodes for lithium-ion batteries

机译：锂离子电池纳米结构球形多孔SnO_2阳极

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Spherical porous tin oxide was fabricated via a spray pyrolysis technique. TEM revealed that the primary SnO_2 crystals had an average size of about 5 nm. The electrochemical measurements showed that the spherical porous SnO_2 samples have excellent cyclability, which can deliver a reversible capacity of 410mAh g~(-1) up to 50 cycles as a negative electrode for lithium batteries. The second step of the study was to thermal treat the initial tin oxide for 3 h at 600, 800, 1000 and 1200 deg C, respectively, in order to identify the particle size effect on the electrochemical performance toward lithium. It was found that the morphologies of these spherical clusters could be maintained even after thermal treatment at 1200 deg C. It was also proved that finer the size of the tin oxide particles the better the electrochemical performance.
机译：球形多孔氧化锡是通过喷雾热解技术制备的。 TEM显示初级SnO_2晶体具有约5nm的平均尺寸。电化学测量表明，球形多孔SnO_2样品具有优异的循环性能，作为锂电池负极，可循环使用410mAh g〜（-1），可循环50次。研究的第二步是分别在600、800、1000和1200℃下热处理初始氧化锡3 h，以便确定粒径对锂电化学性能的影响。发现即使在1200℃下进行热处理后，这些球形簇的形态也可以保持。还证明氧化锡颗粒的尺寸越细，电化学性能越好。

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