Nanocomposite High Voltage Cathode Materials for Li-Ion Cells

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-09ER85270
Agency Tracking Number: 90419
Amount: $99,964.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: 14 d
Solicitation Number: DE-PS02-08ER08-34
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
 Jinxiang Dai
 Dr.
 (732) 868-3141
 jdai@neicorporation.com
Business Contact
 Ganesh Skandan
Title: Dr.
Phone: (732) 868-3141
Email: gskandan@neicorporation.com
Research Institution
N/A
Abstract
The performance of state-of-the-art Li-ion batteries does not meet the requirements of Plug-In Hybrid Electric Vehicles (PHEVs) with respect to energy density and cycle life. While the energy density can be increased by using high voltage (i.e., > 4.8 V) cathode materials, organic liquid electrolytes start to degrade at and above 5V. In particular, there are deleterious interfacial reactions between the cathode particles and the electrolyte, which lead to poor cycle life. The conventional practice of mitigating cathode-electrolyte reactions is to coat the surface of the cathode with an inert material, such as aluminum oxide. Such strategies have met with limited success due to the poor ionic and electrical conductivity of the surface coating. This project will develop a new class of nanocomposite cathode materials. The unique composition and morphology of the cathode particles is expected to effectively prevent the reaction between the cathode material and electrolyte, thereby realizing the goals of high energy density and long cycle life. Commercial Applications and other Benefits as described by the awardee The proposed Li-ion cathode material is expected to increase the energy density and cycle life greatly, and meet future PHEV application requirements. High-energy-density, long-cycle-life Li-ion batteries also should find use in many consumer electronic products, such as cellular phones, laptop computers, and digital cameras.

* information listed above is at the time of submission.

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