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zxiaochao

金虫 (小有名气)

[求助] 负极TiO2(b)首次效率与哪些因素有关

TiO2(b)具有高的电压平台,不会形成SEI膜,应该具有较高的首次效率。但从做的结果看,效果并不理想,请问TiO2(b)首次效率与哪些因素有关与哪些因素有关,有没有相关的文献介绍这方面的情况。
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xmdxx1182

金虫 (正式写手)

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zxiaochao: 金币+4, 谢谢 2013-09-24 08:33:29
结晶水会导致首效低下,而且TI-O对于电解液有催化作用。
2楼2013-09-13 14:42:58
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国产电池

木虫 (著名写手)

纯纯家族第一外援

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zxiaochao: 金币+6, 谢谢 2013-09-24 08:33:33
Moreover, the irreversible loss of capacity could not be caused by the formation of the SEI film because the cell was tested within a potential range above 1.0 V. 27 The possible reasons for the irreversible capacity loss are as follows. The large specific surface area of 502.9 m2 g-1 allowed for the easy adsorption of
trace water from the environment, resulting in electrolyte decomposition and the formation of LiOH by reaction between lithium ions and water. 47,48 Another reason may be the irreversible lithium insertion into the distorted sites in the TiO2 framework, which would bind the lithium ion. 49
(J. Mater. Chem. A, 2013, Advance Article,
http://pubs.rsc.org/en/content/a ... 2770b#!divAbstract)
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3楼2013-09-13 16:29:06
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