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      https://www.ias.ac.in/article/fulltext/boms/040/03/0427-0434

    • Keywords

       

      ZnO; electrodeposition; Li-ion battery; anode; capacity fading.

    • Abstract

       

      Electrodeposited ZnO coatings suffer severe capacity fading when used as conversion anodes in sealed Li cells. Capacity fading is attributed to (i) the large charge transfer resistance, $R_{\rm ct}$ (300–700 $\Omega$) and (ii) the low Li$^+$ ion diffusion coefficient, D$^+_{\rm Li}$ (10$^{−15}$ to 10$^{−13}$ cm$^2$ s$^{−1}$). The measured value of R$_{\rm ct}$ is nearly 10 times higher and D$^+_{\rm Li}$ 10–100 times lower than the corresponding values for Cu$_2$O, which delivers a stable reversible capacity.

    • Author Affiliations

       

      G K KIRAN1 TIRUPATHI RAO PENKI2 N MUNICHANDRAIAH2 P VISHNU KAMATH1

      1. Department of Chemistry, Central College, Bangalore University, Bangalore 560 001, India
      2. Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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    • Supplementary Material

       
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