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Prediction of the theoretical capacity of non-aqueous lithium-air batteries

Author

Listed:
  • Tan, Peng
  • Wei, Zhaohuan
  • Shyy, W.
  • Zhao, T.S.

Abstract

In attempt to realistically assess the high-capacity feature of emerging lithium-air batteries, a model is developed for predicting the theoretical capacity of non-aqueous lithium-air batteries. Unlike previous models that were formulated by assuming that the active materials and electrolyte are perfectly balanced according to the electrochemical reaction, the present model takes account of the fraction of the reaction products (Li2O2 and Li2O), the utilization of the onboard lithium metal, the utilization of the void volume of the porous cathode, and the onboard excess electrolyte. Results show that the gravimetric capacity increases from 1033 to 1334mAh/g when the reaction product varies from pure Li2O2 to pure Li2O. It is further demonstrated that the capacity declines drastically from 1080 to 307mAh/g when the case of full utilization of the onboard lithium is altered to that only 10% of the metal is utilized. Similarly, the capacity declines from 1080 to 144mAh/g when the case of full occupation of the cathode void volume by the reaction products is varied to that only 10% of the void volume is occupied. In general, the theoretical gravimetric capacity of typical non-aqueous lithium-air batteries falls in the range of 380–450mAh/g, which is about 10–12% of the gravimetric capacity calculated based on the energy density of the lithium metal. The present model also facilitates the study of the effects of different parameters on the mass and volume change of non-aqueous lithium-air batteries.

Suggested Citation

  • Tan, Peng & Wei, Zhaohuan & Shyy, W. & Zhao, T.S., 2013. "Prediction of the theoretical capacity of non-aqueous lithium-air batteries," Applied Energy, Elsevier, vol. 109(C), pages 275-282.
  • Handle: RePEc:eee:appene:v:109:y:2013:i:c:p:275-282
    DOI: 10.1016/j.apenergy.2013.04.031
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    Citations

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    Cited by:

    1. Ren, Y.X. & Zhao, T.S. & Tan, P. & Wei, Z.H. & Zhou, X.L., 2017. "Modeling of an aprotic Li-O2 battery incorporating multiple-step reactions," Applied Energy, Elsevier, vol. 187(C), pages 706-716.
    2. Esfahanian, Vahid & Dalakeh, Muhammad Taghi & Aghamirzaie, Navid, 2019. "Mathematical modeling of oxygen crossover in a lithium-oxygen battery," Applied Energy, Elsevier, vol. 250(C), pages 1356-1365.
    3. Tan, Peng & Chen, Bin & Xu, Haoran & Cai, Weizi & He, Wei & Ni, Meng, 2019. "Porous Co3O4 nanoplates as the active material for rechargeable Zn-air batteries with high energy efficiency and cycling stability," Energy, Elsevier, vol. 166(C), pages 1241-1248.
    4. Tan, P. & Jiang, H.R. & Zhu, X.B. & An, L. & Jung, C.Y. & Wu, M.C. & Shi, L. & Shyy, W. & Zhao, T.S., 2017. "Advances and challenges in lithium-air batteries," Applied Energy, Elsevier, vol. 204(C), pages 780-806.
    5. Wang, Limei & Cheng, Yong & Zhao, Xiuliang, 2015. "Influence of connecting plate resistance upon LiFePO4 battery performance," Applied Energy, Elsevier, vol. 147(C), pages 353-360.
    6. Tan, P. & Shyy, W. & Zhao, T.S. & Zhang, R.H. & Zhu, X.B., 2016. "Effects of moist air on the cycling performance of non-aqueous lithium-air batteries," Applied Energy, Elsevier, vol. 182(C), pages 569-575.
    7. Tan, Peng & Ni, Meng & Shao, Zongping & Chen, Bin & Kong, Wei, 2017. "Numerical investigation of a non-aqueous lithium-oxygen battery based on lithium superoxide as the discharge product," Applied Energy, Elsevier, vol. 203(C), pages 254-266.
    8. Xiao, Xu & Zhang, Zhuojun & Yu, Wentao & Shang, Wenxu & Ma, Yanyi & Tan, Peng, 2022. "Achieving a high-specific-energy lithium-carbon dioxide battery by implementing a bi-side-diffusion structure," Applied Energy, Elsevier, vol. 328(C).

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