• batteries;
  • colloids;
  • electrodes;
  • microstructures;
  • nanoparticles
Thumbnail image of graphical abstract

Flowable electrochemical composites power a new type of flow battery described by Yet-Ming Chiang, W. Craig Carter, and co-workers on p. 511 that, by using semi-solid electrodes based on rechargeable lithium chemistry, could provide more than ten times the energy density of aqueous flow batteries. In the image, the contents of the vial show X-ray tomography in which each color uniquely identifies a 3D continuous cluster of sub-micrometer lithium titanate spinel particles in a semi-solid “fuel.” The proposed novel flow batteries may be applicable to transportation and grid storage. Cover design by Paul Montie.