The Development of a Low-Cost Separator with Improved Performance

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-02ER83580
Agency Tracking Number: 70385B02-I
Amount: $99,969.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
82 Mechanic Street, Pawcatuck, CT, 06379
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Thomas Barbarich
 (860) 599-1100
Business Contact
 Vincent Yevoli
Title: 70385
Phone: (860) 599-1100
Research Institution
70385 The performance advantages of lithium-ion batteries over conventional lead-acid batteries include higher specific energy (-150 Wh/kg), energy density (>325 Wh/L), and cycle life. While these advantages have lead to the recent growth of lithium-ion technology for various consumer applications, the high cost of these batteries has prevented their commercial use in electric and hybrid vehicles. Currently, the separator can contribute over 20% of the total cost of a li-ion cell for a hybrid electric vehicle battery, making it one of the cost drivers in a lithium-ion cell. To lower the cost, this project will develop inexpensive, macroporous separators for lithium-ion battery systems. In Phase I, template-directed fabrication methods will be used to prepare macroporous membranes with microporous interconnects from alumina-nanoparticle (alumoxanes) hybrid resin composites. These new materials will be prepared from inexpensive materials to lower the costs and tested for their performance in lithium-ion battery systems. Commercial Applications and Other Benefits as described by the awardee: The new separators could be used in most applications using lithium-ion technology including electric and hybrid automobiles, computers, cell phones and satellites.

* Information listed above is at the time of submission. *

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