High Power Density Li-Ion Batteries with Good Low Temperature Performance

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-06ER84561
Agency Tracking Number: 80107S06-I
Amount: $749,986.00
Phase: Phase II
Program: SBIR
Awards Year: 2007
Solitcitation Year: 2006
Solitcitation Topic Code: 19
Solitcitation Number: DE-FG01-05ER05-28
Small Business Information
Nei Corporation
400 Apgar Drive, Suite E, Somerset, NJ, 08873
Duns: 042939277
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Amit Singhal
 (732) 868-1906
Business Contact
 Ganesh Skandan
Title: Dr
Phone: (732) 868-1906
Email: gskandan@neicorporation.com
Research Institution
Conventional and plug-in hybrid electric vehicles (HEVs) require economical and safe rechargeable Li-ion batteries that have high power, good cyclability, long calendar life, and good low temperature performance. Plug-in HEV batteries also need to have high energy density. Currently available Li-ion batteries significantly degrade at sub-zero temperatures and do not meet the requirements. This project will develop safe and high performance electrode materials to fulfill the requirement of the two HEV applications. Utilizing these electrode materials in conjunction with high performance liquid electrolytes will lead to Li-ion batteries with good low temperature performance. In addition, the lithium plating problem, which is commonly found in conventional Li-ion batteries, will be overcome. In Phase I, a nanocomposite cathode material was produced by a simple and economical synthesis process and was demonstrated to have good low temperature performance. In Li-ion cells (capacity: 9 ¿ 12 mAh), the nanocomposite cathodes exhibited excellent cycling stability. Additionally, important powder properties, which control the rate capability of the nanocomposite cathode, were discovered. In Phase II, the synthesis process for producing nanocomposite cathode materials will be optimized, and the electrode materials will be implemented in Li-ion batteries. Additionally, a cathode material, suitable for plug-in HEV Li-ion batteries, will be developed. High performance prototype Li-ion batteries, which will avoid the lithium plating problem at low temperatures and fast charge rates, will be fabricated and tested. Commercial Applications and Other Benefits as describde by the awardee: The technology should enable the development of low cost Li-ion batteries that would be safe for HEV applications. In addition, Li-ion batteries are ubiquitous in both consumer and industrial sectors. All of these applications have nearly identical needs ¿ more energy, higher safety, faster charges, and high power (in some cases).

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government