Game-Changing Advances in All-Solid-State Lithium Battery Technology

A new strategy for all-solid-state lithium batteries enhances energy density and extends lifespan by using a special material that removes the need for additional additives. This advancement promises over 20,000 cycles of efficient operation, marking a significant step forward in battery technology.

An innovative cathode homogenization strategy for all-solid-state lithium batteries (ASLBs) has been introduced by researchers at the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences, along with collaborators from leading international institutions.

This new approach, detailed in their paper published today (July 31) in Nature Energy, significantly improves the cycle life and energy density of ASLBs, representing an important advancement in energy storage technology.

Challenges in Current ASLBs
Current ASLBs face challenges due to heterogeneous composite cathodes, which require electrochemically inactive additives to enhance conduction. These additives, while necessary, reduce the batteries’ energy density and cycle life due to their incompatibility with the layered oxide cathodes, which undergo substantial volume changes during operation.