manganese dioxide

Nanotubes promise better battery electrodes

Saturday, April 11th, 2009

Grow carbon nanotubes inside manganese dioxide nanotubes and you’ve got high-capacity, potentially inexpensive electrodes for lithium-ion batteries.

The electrodes are made by forming manganese dioxide nanotubes in a template, then growing carbon nanotubes inside the manganese dioxide nanotubes. Manganese dioxide is an abundant material, but researchers have had difficulty making efficient electrodes from it. The carbon [...]