A Low Cost, High Energy Density, and Long Cycle Life Potassium-Sulfur Battery for Grid-Scale Energy Storage

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Abstract

A potassium-sulfur battery using K+-conducting beta-alumina as the electrolyte to separate a molten potassium metal anode and a sulfur cathode is presented. The results indicate that the battery can operate at as low as 150 C with excellent performance. This study demonstrates a new type of high-performance metal-sulfur battery that is ideal for grid-scale energy-storage applications.
Original languageEnglish
Pages (from-to)5915-5922
Number of pages8
JournalAdvanced Materials
Volume27
Issue number39
DOIs
StatePublished - Oct 1 2015

Keywords

  • alkali metal-sulfur batteries
  • electrolytes
  • lower operating temperatures
  • potassium anodes
  • potassium-sulfur batteries

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