Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > NASA Funds Development of Nanoscale Materials for High Energy Density Lithium-Ion Batteries

Abstract:
NanoEngineers at the University of California, San Diego are designing new types of lithium-ion (Li-ion) batteries that could be used in a variety of NASA space exploration projects - and in a wide range of transportation and consumer applications.

NASA Funds Development of Nanoscale Materials for High Energy Density Lithium-Ion Batteries

San Diego, CA | Posted on August 31st, 2010

NEI Corporation and UC San Diego recently won a Phase II Small Business Technology Transfer contract from NASA to develop and implement high energy density cathode materials for lithium batteries.

NEI is the prime contractor on the NASA contract and Shirley Meng, a professor in the Department of NanoEngineering at the UC San Diego Jacobs School of Engineering, is a subcontractor. The nearly $600,000 program builds upon expertise in the UC San Diego Department of NanoEngineering in modeling new nanocomposite structures for next generation electrode materials, and NEI's capability to reproducibly synthesize electrode materials at the nanoscale.

Battery Applications

Advanced Li-ion battery systems with high energy and power densities - and the ability to operate at low temperatures - are required for NASA's exploration missions. The James Webb Space Telescope (JWST), Mars Atmospheric and Volatile Evolution (MAVEN), deep drilling equipment and Astrobiology Field Laboratory on Mars, International X-ray Observatory (IXO), and extravehicular activities are potential space applications. Advanced lithium-ion battery packs could also be used in hybrid electric vehicles, consumer electronics, medical devices, electric scooters, and a variety of military applications.

Designing Batteries from the Atom Up

The UC San Diego NanoEngineers will help guide development of the new batteries using advanced modeling techniques. "We will give NEI candidate materials that we think will have optimal battery properties, and they will make the materials using their proprietary technology," said professor Shirley Meng, who leads the Laboratory for Energy Storage and Conversion in the Department of NanoEngineering at the UC San Diego Jacobs School of Engineering.

The outcome of the program will be a commercially useable cathode material with exceptionally high capacity - more than 250 milliAmp-Hours per gram (250 mAh/g) at about 4V, which translates to an energy density of more than 1000 Watt-hours per kilogram (Wh/kg). This represents a factor of two enhancement in energy density over lithium cobalt oxide, which is the most commonly used cathode material at the present time. NEI expects to have sample cathode materials for testing by interested end-users by the middle of 2011.

The UC San Diego NanoEngineers will design the candidate cathode materials using "first principles calculations" - a quantum-mechanical based calculation method that enables the engineers to predict electrochemical properties of the batteries prior to synthesis.

One aspect of the batteries the engineers will predict is the structural stability of the electrode materials as the lithium concentration fluctuates during charge and discharge. Enhancing structural stability is critical for extending the life of rechargeable batteries.

"We are pleased to be working closely with Shirley Meng on this exciting materials manufacturing project. The shortest path to developing new materials and implementing them in practical applications is for materials manufacturers to work synergistically with researchers like Prof. Meng, who can create new structures through computation and modeling," said Dr. Ganesh Skandan, CEO NEI Corporation.

"This work, which could lead to new batteries for space exploration and beyond, is just one example of the high impact research being done in the Department of NanoEngineering," said Kenneth Vecchio, Professor and Chair of the Department of NanoEngineering at the UC San Diego Jacobs School of Engineering.

Batteries for hybrid electric vehicles or full electric cars

Work in the Meng lab on next-generation batteries extends beyond the collaboration with NEI.

"In my group, we are very interested in batteries that will be used in future transportation systems. Lithium batteries for plug-in hybrid electric vehicles or full electric cars have a lot of potential, but we have to work very hard to decrease the dollar per kilowatt hour numbers," said Meng, whose research group at UC San Diego is funded through grants from the U.S. Department of Energy (DOE) and other government and industry sources.

The new Phase II Small Business Technology Transfer contract follows a similar Phase I contract awarded to the same industry-university team.

"If we are going to use large scale batteries for applications such as electric cars, it is not acceptable to replace batteries every three years. The cycle life of the batteries becomes very important and this is a challenge to address. How do we make batteries last for ten years instead of three years? We have to look for other options for the structure of the battery materials that are more robust," said Meng.

The Cathode Bottleneck

The positive electrode in lithium-ion batteries - the cathode - is one battery component ripe for additional improvements.

"The cathode is a performance bottleneck for modern lithium batteries that power consumer electronics like PDAs, mp3 players and laptops," said Meng.

"There is plenty of room for improving energy density in lithium batteries by at least another 50 percent. The problem is making these improvements under the constraints of cost. That is the main obstacle. We are looking at dollars per kilowatt hour. We need to make sure the raw materials are low cost, the synthesis process is low cost, and the packaging of the battery is low cost," said Meng.

Moving to Manganese

The lithium ion batteries Meng's group is working on are primarily manganese based, while most of the lithium batteries in the marketplace today are cobalt based.

"Manganese is much cheaper than cobalt, and manganese is more abundant," said Meng. "Also, we are focusing on a different material structure for the batteries, one that is easier to make and could lead to cheaper synthesis."

The nanoengineers in the Meng lab will be using first principles to model new nanocomposite structures for the generation of cathode materials with exceptionally high energy density.

"We explore the electrochemical properties of the batteries we design and develop to see if the experimentally measured properties match with our predictions," said Meng. "We use this feedback mechanism to improve our computational modeling."

####

For more information, please click here

Copyright © University of California, San Diego

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

Academic/Education

Biosensors Get a Boost from Graphene Partnership: $5 Million Investment Supports Dozens of Jobs and Development of 300mm Fabrication Process and Wafer Transfer Facility September 18th, 2014

Malvern technology delivers Malvern reliability in multi-disciplinary lab at Queen Mary University London September 9th, 2014

State University of New York Trustees Unanimously Approve SUNY Polytechnic Institute (SUNY Poly) as New Name for Merged SUNY CNSE / SUNYIT September 9th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Children’s Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

Announcements

Engineers show light can play seesaw at the nanoscale: Discovery is another step toward faster and more energy-efficient optical devices for computation and communication September 22nd, 2014

New chip promising for tumor-targeting research September 22nd, 2014

Twisted graphene chills out: When two sheets of graphene are stacked in a special way, it is possible to cool down the graphene with a laser instead of heating it up, University of Manchester researchers have shown September 22nd, 2014

New star-shaped molecule breakthrough: Scientists at The University of Manchester have generated a new star-shaped molecule made up of interlocking rings, which is the most complex of its kind ever created September 22nd, 2014

Military

Engineers show light can play seesaw at the nanoscale: Discovery is another step toward faster and more energy-efficient optical devices for computation and communication September 22nd, 2014

Scientists refine formula for nanotube types: Rice University theorists determine factors that give tubes their chiral angles September 17th, 2014

Nanoribbon film keeps glass ice-free: Rice University lab refines deicing film that allows radio frequencies to pass September 16th, 2014

'Squid skin' metamaterials project yields vivid color display: Rice lab creates RGB color display technology with aluminum nanorods September 15th, 2014

Automotive/Transportation

Next-Gen Luxury RV From Global Caravan Technologies Will Offer MagicView Roof and Windshield Using SPD-SmartGlass Technology From Research Frontiers: Recreational Vehicle Manufacturer Global Caravan Technologies (GCT) Features 28 Square Feet of MagicView™ SPD-SmartGlass September 17th, 2014

Toward making lithium-sulfur batteries a commercial reality for a bigger energy punch September 17th, 2014

Nanoribbon film keeps glass ice-free: Rice University lab refines deicing film that allows radio frequencies to pass September 16th, 2014

‘Small’ transformation yields big changes September 16th, 2014

Aerospace/Space

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Next-Gen Luxury RV From Global Caravan Technologies Will Offer MagicView Roof and Windshield Using SPD-SmartGlass Technology From Research Frontiers: Recreational Vehicle Manufacturer Global Caravan Technologies (GCT) Features 28 Square Feet of MagicView™ SPD-SmartGlass September 17th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Iranian Nano Scientists Create Flame-Resistant Polymers September 13th, 2014

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

Toward making lithium-sulfur batteries a commercial reality for a bigger energy punch September 17th, 2014

NEI Corporation and PneumatiCoat Technologies Sign Agreement to Jointly Develop and Market New Materials for Lithium-ion Batteries September 12th, 2014

UT Arlington research uses nanotechnology to help cool electrons with no external sources September 11th, 2014

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

New chip promising for tumor-targeting research September 22nd, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Effective Nanotechnology Innovations to Receive Mustafa Prize September 16th, 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