Supercharged: Nanotube electrodes like the one shown here in cross-section could boost battery power.
Credit: Seung Woo Lee, Shuo Chen, Paula Hammond, and Yang Shao-Horn
New publications, experiments and breakthroughs in information technology--and what they mean.
Better Batteries
Nanotube electrodes deliver more power
Source: "High-power lithium batteries from functionalized carbon-nanotube electrodes"
Yang Shao-Horn et al.
Nature Nanotechnology 5: 531-537
Results: A lithium-ion battery with a positive electrode made of carbon nanotubes delivers 10 times as much power as a conventional battery and can store five times as much energy as a conventional ultracapacitor.
To read the entire article you must log in:
Most of our content — all daily news, blogs, and videos — is free. Magazine stories are paid. To read this story, you must have a subscription or you must use a reading credit. Registration to Technology Review is free and entitles registrants to three free reading credits.
Manufacturing in the United States is in trouble. That's bad news not just for the country's economy but for the future of innovation.
This document is part of the “How-To Guide for Most Common Measurements” centralized resource portal. This tutorial provides a detailed guide for measurement and device considerations to take temperature measurements using thermocouples. Get an introduction to thermocouples, which are inexpensive sensing devices widely used with PC-based data acquisition systems. Also review some specific thermocouple examples and learn how thermocouples work and ways to integrate them into a data acquisition measurement system.
View full PDF >
Listen to story > 
Our list of the 50 most innovative companies, including the following:
On Twitter
Become a Fan on Facebook
Subscribe to the Feed