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May 10 (UPI) — Scientists with the U.S. Army have developed a new type of cathode chemistry that makes batteries safer and more efficient. Currently, Soldiers must regularly carry batteries weighing between 15 and 20 pounds. But thanks to a new type of cathode and electrolyte, soldiers could soon be carrying safer and more efficient
Rice researchers show how to optimize nanomaterials for fuel-cell cathodes. Nitrogen-doped carbon nanotubes or modified graphene nanoribbons may be suitable replacements for platinum for fast oxygen reduction, the key reaction in fuel cells that transform chemical energy into electricity, according to Rice University researchers. The findings are from computer simulations by Rice scientists who set
Aluminum-ion batteries (AIB) have significant merits of low cost, non-flammability, and high-capacity metallic aluminum anodes based on three-electron redox properties. However, due to its inadequate cathodic performance, especially in terms of capacity, high-rate capability, and cycle life, AIB still cannot compete with Li-ion batteries and supercapacitors. To address these issues, a research team led by