Lithium Metal Batteries: A Solid‐State Battery Cathode with a Polymer Composite Electrolyte and Low Tortuosity Microstructure by Directional Freezing and Polymerization (Adv. Energy Mater. 1/2021)

Abstract

The image representing article number 2002387 by Chun Huang, Patrick S. Grant and co‐workers shows a solid‐state lithium metal battery opening like opening a book. The team report a novel structured cathode comprising aligned active material particles (magenta) embedded in a new polymer composite electrolyte (green). Unlike conventional random microstructures in cathodes, the low tortuosity channels between the aligned columns of active material particles facilitate fast lithium ion transport through the cathode, resulting in near theoretical energy storage performance.