Lithium storage mechanisms in purpurin based organic lithium ion battery electrodes
作者： Arava Leela Mohana Reddy , Subbiah Nagarajan , Porramate Chumyim , Sanketh R. Gowda , Padmanava Pradhan
DOI: 10.1038/SREP00960
关键词: Voltammetry 、 Organic compound 、 Chemistry 、 Electrochemistry 、 Redox 、 Photochemistry 、 Lithium 、 Ion 、 Lithium-ion battery 、 Molecule
摘要: Current lithium batteries operate on inorganic insertion compounds to power a diverse range of applications, but recently there is surging demand develop environmentally friendly green electrode materials. To sustainable and eco-friendly ion batteries, we report reversible storage properties naturally occurring abundant organic compound purpurin, which non-toxic derived from the plant madder. The carbonyl/hydroxyl groups present in purpurin molecules act as redox centers reacts electrochemically with Li-ions during charge/discharge process. mechanism lithiation fully elucidated using NMR, UV FTIR spectral studies. formation most favored six membered binding core carbonyl hydroxyl at C-1 C-4 positions respectively facilitated process, whereas group C-2 position remains unaltered.
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