The improvement of the Li-ion insertion behaviour of Li_1.05Cr_0.10Mn_1.85O₄ in an aqueous medium upon addition of vinylene carbonate

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• 作者：Ivana B. Stojković ; Nikola D. Cvjetić ; anin ; Slavko V. Mentus
• 关键词：Aqueous lithium-ion battery ; Galvanostatic charging ; Li-ion intercalation ; Li_1.05Cr_0.10Mn_1.85O₄ ; Vinylene carbonate
• 刊名：Electrochemistry Communications
• 出版年：2010
• 出版时间：March 2010
• 年：2010
• 卷：12
• 期：3
• 页码：371-373
• 全文大小：298 K

文摘

The influence of vinylene carbonate addition to aqueous LiNO₃ solution on the Li-ion insertion performance of a Li_1.05Cr_0.10Mn_1.85O₄ was studied by galvanostatic charging/discharging. Without additive, the coulombic capacity amounted initially to 80 mA h g⁻¹ and, during 50 galvanostatic charging/discharging cycles, decreased to 44.1 % of the initial value. Upon VC addition in an amount of 1 wt. % , the initial discharge capacity of 112 mA h g⁻¹ was registered which after 100th charging/discharging cycles retained even 82 % of the initial value. This is the first report of a successful use of an additive to improve the behaviour of a Li-intercalation material in an aqueous solution.