Iron Power: Eking more juice from batteries | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.


News

Iron Power: Eking more juice from batteries

By
10:33am, March 17, 2004

Many of the rechargeable batteries that power cell phones, laptop computers, medical implants, and hybrid cars contain some of the same electrode technology that was used in Thomas Edison's day. Now, chemists have come up with a modern alternative that could potentially multiply the capacity of such batteries.

A battery typically consists of two electrodes—a positive cathode and a negative anode—immersed in a substance through which charged atoms, or ions, can flow. The new technology holds promise for replacing the energy-limiting nickel-based cathode in nickel-metal hydride batteries, says chemist Stuart Licht of the University of Massachusetts in Boston, who led the research. Those are the most popular rechargeable batteries for portable electronic gadgets.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News