A manganese-doped barium carbonate cathode for alkaline batteries

Benjamin Hertzberg, Lev Sviridov, Eric A. Stach, Tanya Gupta, Daniel Artemus Steingart

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

MnO2-Zn alkaline batteries are one of the most common modern forms of primary battery, due to their relatively high energy density and low cost per kilowatt-hour. Additionally, unlike many other types of primary battery, alkaline cells can theoretically be recharged. Their low cost per kilowatt-hour makes them potentially ideal for applications such as sustainable energy storage or peak demand shaving. However, a phase transformation that occurs in MnO2 after reduction by more than one electron converts it into the electrochemically inactive Mn3O4 phase. This limits the total depth of discharge of the cell significantly.We report the synthesis of a novel electrode material, manganese-doped witherite, for rechargeable alkaline batteries produced by a simple hydrothermal process. The material has been studied via X-ray diffraction and electroanalytical techniques. We show that unaltered witherite has poor electrochemical properties, and that this new material has high capacity and rate capability, even under deep discharge conditions, superior to conventional manganese dioxide.

Original languageEnglish (US)
JournalJournal of the Electrochemical Society
Volume161
Issue number6
DOIs
StatePublished - Jan 1 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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    Hertzberg, B., Sviridov, L., Stach, E. A., Gupta, T., & Steingart, D. A. (2014). A manganese-doped barium carbonate cathode for alkaline batteries. Journal of the Electrochemical Society, 161(6). https://doi.org/10.1149/2.083405jes