A new step in the development of Zn/LiFePO4 aqueous battery

A. Molkenova, A. Belgibayeva, D. Ibrayeva, M. Sultanov, S. Zhumagali, N. Akhmetova, T. Hara, Z. Bakenov

Research output: Contribution to journalArticle

Abstract

In recent years, aqueous batteries have gained much attention due to their low production cost and exceptional safety compared to commercial Li-ion battery systems. Three-dimensional (3D) structure could be promising to enhance these batteries energy capacity. In this work, the electrochemical performance of 3D Zn electrode, developed for aqueous rechargeable Zn/LiFePO4 (Zn/LFP) battery system, was studied. Formation of uniformly coated Zn metal on the three-dimensionally organized carbon fibers was verified by field emission scanning electron microscopy (FE-SEM). The electrochemical performance of the battery with this anode was tested for over 50 cycles, where the initial capacity decayed by 11%. Further, poly(methyl methacrylate) (PMMA) and poly(p-phenylene oxide) (PPO) polymer coatings were extensively investigated as a potential separator for the 3D aqueous battery system. Cyclability of PMMA-coated Zn anode was better than that of "plane" Zn; however, the initial capacity of 3D Zn anode was lower than that for the counterpart system.

Original languageEnglish
Pages (from-to)4452-4457
Number of pages6
JournalMaterials Today: Proceedings
Volume4
Issue number3
DOIs
Publication statusPublished - 2017

Keywords

  • 3D structured electrode
  • aqueous rechargeable lithium-ion battery
  • electrodeposition
  • electropolymerization
  • polymer coating

ASJC Scopus subject areas

  • Materials Science(all)

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    Molkenova, A., Belgibayeva, A., Ibrayeva, D., Sultanov, M., Zhumagali, S., Akhmetova, N., Hara, T., & Bakenov, Z. (2017). A new step in the development of Zn/LiFePO4 aqueous battery. Materials Today: Proceedings, 4(3), 4452-4457. https://doi.org/10.1016/j.matpr.2017.04.017