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Electroactive Polymer Separator to Protect from Overcharging in Lithium Ion Batteries(PSI 7265-240)

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-05ER84249
Agency Tracking Number: 78277S05-I
Amount: $99,851.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 17
Solicitation Number: DE-FG02-06ER06-09
Timeline
Solicitation Year: 2006
Award Year: 2005
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
20 New England Business Center
Andover, MA 01810
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Aron Newman
 Dr.
 (978) 689-0003
 newman@psicorp.com
Business Contact
 B. David Green
Title: Dr.
Phone: (978) 689-0003
Email: green@psicorp.com
Research Institution
N/A
Abstract

78277S Overcharging of lithium-ion batteries is currently compromising the lifetime of hybrid electric vehicle battery packs. This project will develop an electroactive polymer separator that will improve the ability of a lithium-ion battery to tolerate overcharging. The electroactive polymer maintains its neutral state as an insulator during typical charging and discharging. Upon overcharging, in which the potential is greater than 4.3 V, the electroactive polymer switches to a conductor and serves as a current shunt. When the cell potential returns to voltages below 4.3 V, the polymer returns to an insulator. Phase I will demonstrate that a porous electroactive composite separator will control overcharging without compromising high power performance or self-discharge. Commercial Applications and Other Benefits as described by the awardee: In addition to the hybrid electric vehicle market, this technology should improve battery packs that are used for other applications, e.g. laptop computers.

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

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