Aqueous Na, K-Ion Batteries for Grid-Scale Energy Storage

Sodium- and potassium-ion batteries are promising candidates for next-generation grid-scale energy storage, due to the elements’ abundance and their encouraging battery performance. Their commercialisation requires the development of new electrode materials and a fundamental understanding of their structure-performance relationships.

Competitive advantage

  • Development of low-cost, scalable electrode materials with high power density and prolonged cycle life
  • Utilisation of a range of in situ and ex situ techniques, such as synchrotron X-ray diffraction, to uncover the structure-performance relationship
  • Development of prototype full cells to demonstrate the capability for commercial application
  • Expertise in device scale modeling of electrodes

Impact

  • The development of sodium- and potassium-ion full cells could lead to low-cost and sustainable solutions for intermittent grid-scale energy storage.

Successful applications

  • Mesoporous Prussian blue and its analogue’s cathode with unprecedented cycle life
  • An ultrafast aqueous potassium-ion battery with a charge or discharge time of less than 5 seconds
  • A K+/Na+ hybrid aqueous full cell with high-rate capability

Capabilities and facilities

  • Materials and electrochemical processes
  • Extensive state-of-the-art electrochemical laboratories
  • Access to comprehensive analytical techniques such as diffractions, surface analysis, and electron microscopy
Tags
lensEnergy Storage
lensClean Energy