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A Low Cost, High Energy Density, and Long Cycle Life Potassium–Sulfur Battery for Grid‐Scale Energy Storage
Author(s) -
Lu Xiaochuan,
Bowden Mark E.,
Sprenkle Vincent L.,
Liu Jun
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502343
Subject(s) - battery (electricity) , sulfur , energy storage , materials science , potassium ion battery , anode , cathode , electrolyte , potassium , electrical engineering , electrode , metallurgy , lithium vanadium phosphate battery , chemistry , engineering , thermodynamics , power (physics) , physics
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.