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Relationship between initial efficiency and structure parameters of carbon anode material for Li-ion battery

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Abstract

The initial efficiency is a very important criterion for carbon anode material of Li-ion battery. The relationship between initial efficiency and structure parameters of carbon anode material of Li-ion battery was investigated by an artificial intelligence approach called Random Forests using D 10, D 50, D 90, BET specific surface area and TP density as inputs, initial efficiency as output. The results give good classification performance with 91% accuracy. The variable importance analysis results show the impact of 5 variables on the initial efficiency descends in the order of D 90, TP density, BET specific surface area, D 50 and D 10; smaller D 90 and larger TP density have positive impact on initial efficiency. The contribution of BET specific surface area on classification is only 18.74%, which indicates the shortcoming of BET specific surface area as a widely used parameter for initial efficiency evaluation.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China

    Jian-bin Shen  (申建斌), You-gen Tang  (唐有根), Yi-zeng Liang  (梁逸曾) & Xin-xin Tan  (谭欣欣)

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  1. Jian-bin Shen  (申建斌)
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  2. You-gen Tang  (唐有根)
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  3. Yi-zeng Liang  (梁逸曾)
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  4. Xin-xin Tan  (谭欣欣)
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Correspondence to You-gen Tang  (唐有根).

Additional information

Foundation item: Project(2001AA501433) supported by the National High-Tech Research and Development Program of China

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Shen, Jb., Tang, Yg., Liang, Yz. et al. Relationship between initial efficiency and structure parameters of carbon anode material for Li-ion battery. J. Cent. South Univ. Technol. 15, 484–487 (2008). https://doi.org/10.1007/s11771-008-0091-y

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  • DOI: https://doi.org/10.1007/s11771-008-0091-y

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