New Layered-Layered Materials For Rechargeable Lithium Batteries

ENERGY TECH

In larger rechargeable lithium-ion batteries, the technology could be used in the next generation of hybrid electric vehicles and plug-in hybrid electric vehicles.

by Staff Writers
Argonne IL (SPX) May 08, 2007
Researchers at the Department of Energy's Argonne National Laboratory have developed a new approach to increasing the capacity and stability of rechargeable lithium-ion batteries. The technology is based on a new material for the positive electrode that is comprised of a unique nano-crystalline, layered-composite structure.

Argonne's strategy uses a two-component "composite" structure -- an active component that provides for charge storage is embedded in an inactive component that stabilizes the structure.

Details of the new developments will be presented on Tuesday, May 8 at the 211th Meeting of The Electrochemical Society, being held in Chicago, May 6-10.

In recent tests, the new materials yielded exceptionally high charge-storage capacities, greater than 250 mAh/g, or more than twice the capacity of materials in conventional rechargeable lithium batteries. Theories explaining the high capacity of these manganese-rich electrodes and their stability upon charge/discharge cycling will be discussed at the Electrochemical Society meeting.

In addition, by focusing on manganese-rich systems, instead of the more expensive cobalt and nickel versions of lithium batteries, overall battery cost is reduced.

Rechargeable lithium-ion batteries which would incorporate the new materials with increased capacity and enhanced stability could be expected to be used in a diverse range of applications, from consumer electronics such as cell phones and laptop computers, to cordless tools and medical devices such as cardiac pacemakers and defibrillators. In larger batteries, the technology could be used in the next generation of hybrid electric vehicles and plug-in hybrid electric vehicles.

Email This Article

ENERGY TECH

Stepping Up Efforts To Push Through IPI Gas Project

Gujarat, India (ANI) May 08, 2007
India on Monday said it was trying hard for a speedy realization of a planned 7.4-billion-dollar trans-nation Iran-Pakistan-India gas pipeline project. Petroleum Minister Murli Deora said that though the three concerned parties were trying hard to arrive at a solution, it was, however, to early to say anything on it.

ENERGY TECH Stepping Up Efforts To Push Through IPI Gas Project Duke Energy Adds Energy Efficiency To Nuclear, Coal, Natural Gas And Renewables New Layered-Layered Materials For Rechargeable Lithium Batteries China Taps North Korea Resources	CIVIL NUCLEAR Bush Rings Manmohan To Discuss Nuclear Deal And WTO Talks Thorium Reactors Integral To Indian Energy Independence Russia Ready To Modernize Slovakia Nuclear Facilities Nuclear Storm Gathers As Climate Change Experts Meet
BLUE SKY Widespread Twilight Zone Detected Around Clouds Rand Says Further Study Warranted On Save The World Air Technology Noxious Lightning AIM Heads For Orbit	WOOD PILE Indigenous Groups Seek Millions From Credit Suisse Over Timber Deal Indonesia Fastest Forest Clearer In World WHRC Scientists Creating National Biomass And Carbon Datas How To Manage Forests In Hurricane Impact Zones
FARM NEWS Light Sticks May Lure Turtles To Fishing Lines Thai Scientists Fear Global Warming Could Empty World Rice Bowl Climate Change Threatens Indonesian Rice Farmers Asian Demand For Shark Fins Threatens Colombian Species	CAR TECH China Automobile Dream A Nightmare For Climate Change Driverless Car Goes On Show In London Made In USA Losing Cachet Technique Creates Metal Memory And Could Lead To Vanishing Dents
AEROSPACE Australia Fears Jet Flight Guilt Could Hit Tourism Nondestructive Testing Keeps Bagram Aircraft Flying New FAA Oceanic Air Traffic System Designed By Lockheed Martin Fully Operational NASA Seeks New Research Proposals	NUCLEAR SPACE Could NASA Get To Pluto Faster? Space Expert Says Yes - By Thinking Nuclear NASA plans to send new robot to Jupiter Los Alamos Hopes To Lead New Era Of Nuclear Space Tranportion With Jovian Mission Boeing Selects Leader for Nuclear Space Systems Program

The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement