Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > New electrode for improved lithium-ion battery performance

Dr. Ming Au developed nanostructured anodes
Dr. Ming Au developed nanostructured anodes

Abstract:
A new kind of anode developed at DOE's Savannah River National Laboratory is expected to increase the energy density of lithium-ion batteries four-fold—or enough to enable the battery to power an electric car for 300 miles on a single charge.

New electrode for improved lithium-ion battery performance

Aiken, SC | Posted on August 4th, 2009

The energy storage capacity of today's lithium-ion batteries is limited by the widely used graphite anode, in which lithium (Li) ions are sandwiched into the carbon layer structure, with every six carbon atoms accommodating one Li atom. This structure gives the graphite anode a theoretical capacity of 372mAh/g. Reaching the 300-mile goal will require increasing the energy density 3-4 times that of the traditional anode.

SRNL's Dr. Ming Au developed nanostructured anodes that not only reach the desired increase in energy density, but use a production method that eliminates safety and environmental concerns presented by standard fabrication of carbon based anodes. The next challenge will be to sustain that energy density through multiple charge-discharge cycles.

His solution uses nanorods of various metals and metal oxides directly formed with the current collectors. Although tiny, these nanorods have the advantage of large surface areas for lithium ions to access, which means they can bind a higher number of lithium cations than the conventional graphite design.

Studies of these formations have shown that numerous inexpensive metals and metal oxides can be considered for nanorod formations to elevate charge capacities of the anodes in lithium-ion batteries. Further studies are ongoing to explore other nanostructure such as nanoporous hollow spheres of metals and metal oxides, understand the mechanism of lithium reaction in anode and sustain the high energy density through multiple charge-discharge cycles.

####

About Savannah River National Laboratory
SRNL is collaborating in several new projects to advance the nation’s energy security under two programs recently announced by the U.S. Department of Energy, the Energy Frontier Research Centers and the Nuclear Energy University Program.

For more information, please click here

Contacts:
Media Relations
Angeline (Angie) French
(803) 725-2854

Savannah River National Laboratory
Savannah River Site
Aiken, SC 29808

Copyright © Savannah River National Laboratory

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Industrial Nanotech, Inc. to Publish PCAOB Audited Financials July 31st, 2014

Nanostructured metal-oxide catalyst efficiently converts CO2 to methanol: Highly reactive sites at interface of 2 nanoscale components could help overcome hurdle of using CO2 as a starting point in producing useful products July 31st, 2014

Carnegie Mellon Chemists Create Nanofibers Using Unprecedented New Method July 31st, 2014

Pressure probing potential photoelectronic manufacturing compound July 31st, 2014

Possible Futures

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Surface Characteristics Influence Cellular Growth on Semiconductor Material March 12th, 2014

Announcements

Industrial Nanotech, Inc. to Publish PCAOB Audited Financials July 31st, 2014

Nanostructured metal-oxide catalyst efficiently converts CO2 to methanol: Highly reactive sites at interface of 2 nanoscale components could help overcome hurdle of using CO2 as a starting point in producing useful products July 31st, 2014

Carnegie Mellon Chemists Create Nanofibers Using Unprecedented New Method July 31st, 2014

Pressure probing potential photoelectronic manufacturing compound July 31st, 2014

Environment

Nature inspires a greener way to make colorful plastics July 30th, 2014

Iranian Scientists Use Waste Cotton Fibers to Produce Cellulose Nanoparticles July 29th, 2014

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Researchers Use Various Zinc Oxide Nanostructures to Boost Efficiency of Water Purification Process July 13th, 2014

Energy

Nanostructured metal-oxide catalyst efficiently converts CO2 to methanol: Highly reactive sites at interface of 2 nanoscale components could help overcome hurdle of using CO2 as a starting point in producing useful products July 31st, 2014

From Narrow to Broad July 30th, 2014

Oregon chemists eye improved thin films with metal substitution: Solution-based inorganic process could drive more efficient electronics and solar devices July 21st, 2014

Steam from the sun: New spongelike structure converts solar energy into steam July 21st, 2014

Automotive/Transportation

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Nano-supercapacitors for electric cars July 25th, 2014

Using Sand to Improve Battery Performance: Researchers develop low cost, environmentally friendly way to produce sand-based lithium ion batteries that outperform standard by three times July 8th, 2014

Up in Flames: Evidence Confirms Combustion Theory: Berkeley Lab and University of Hawaii research outlines the story of soot, with implications for cleaner-burning fuels July 1st, 2014

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics

Tough foam from tiny sheets: Rice University lab uses atom-thick materials to make ultralight foam July 29th, 2014

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Nano-supercapacitors for electric cars July 25th, 2014

Compact Vibration Harvester Power Supply with Highest Efficiency Opens Door to “Fix-and-Forget” Sensor Nodes July 23rd, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE