锂(药物)
插层(化学)
电化学
电极
阳极
磷酸钒锂电池
电池(电)
离子
材料科学
电化学电池
荷电状态
比色法
无机化学
化学
分析化学(期刊)
色谱法
有机化学
功率(物理)
物理化学
内分泌学
物理
医学
量子力学
作者
Pascal Maire,Anna Evans,H. Kaiser,Werner Scheifele,Petr Novák
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2008-01-01
卷期号:155 (11): A862-A862
被引量:92
摘要
Graphites, as well as other intercalation materials used in lithium-ion batteries, change their color upon electrochemical insertion of lithium ions. In this study, in situ colorimetry was developed as a straightforward technical method to measure the local state of charge of lithium-ion battery electrodes. A laboratory cell with a glass window was built for in situ characterization of intercalation materials. Calibration curves of red, green, and blue color values vs state of charge were acquired and used for mapping of lithium distribution in battery electrodes. The lithium distribution in anodes of aged lithium-ion batteries was found to be highly heterogeneous.
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