Recent advancements in battery chemistry are promising to deliver a 'smaller, lighter, and cheaper' alternative to current lithium-ion batteries without sacrificing end-of-life battery performance. Researchers from the United States, in collaboration with the Department of Energy's Argonne National Laboratory, have identified a key factor in lithium battery degradation, which could pave the way for a more sustainable and efficient future.

The research team, led by Argonne Senior Chemist Zonghai Chen, used cutting-edge X-ray technology to examine lithium-ion batteries at a molecular level. They discovered that cathode hydrogenation, the process of transferring protons and electrons from the electrolyte solvent into highly charged layered oxides in the cathode, is the primary cause of battery degradation.

This finding could lead to the development of new battery technologies that mitigate self-discharge, thus extending battery life and reducing the need for frequent battery replacements. The long-term implications of this research are significant, as it could revolutionize the way we power our devices and electric vehicles.

By addressing the issue of battery degradation, researchers are not only aiming to improve battery life but also to make batteries more sustainable and cost-effective. This could have a profound impact on various industries, from consumer electronics to renewable energy.