Crushed, Rolled, or Slivered, Silicon Boosts Batteries

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Two different Rice University research teams are applying different but related approaches to using silicon in lithium batteries to make them more energy dense and longer-lived. One team recently came up with a paint-on lithium battery, announced a way to use otherwise waste silicon by crushing it and spreading it on anodes in their test batteries. This has implications for manufacturing because of the simplicity of the process. Dvice.com gives one hint as to why this might be good. “In lithium-ion batteries, for example, the anode is usually graphite, because it works well and is cheap. “You know what else is cheap? Silicon. The Earth is 28% silicon, making it the second most abundant crustal element by mass after oxygen. …