Novel Polymer Electrolytes with High Ambient Temperature Conductivity
Novel Polymer Electrolytes with High Ambient Temperature Conductivity--Covalent Associates, Inc., 10 State Street, Woburn, MA 01801-6820;
Dr. K. M. Abraham, Principal Investigator
Dr. K. M. Abraham, Business Official
DOE Grant No. DE-FG02-98ER82555
Despite a 20-year effort, the development of solvent-free polymer electrolytes with a conductivity greater than 10-3 Siemans/centimeter (10-3 S/cm) at room temperature has remained an elusive goal in the development of safer, high energy density batteries for applications such as electric vehicle propulsion. A solution to this problem is provided by a class of novel composite electrolytes in which the high conductivity and good mechanical strength of inorganic glasses are complemented by the structural flexibility of organic polymers. The resulting glass-polymer composite electrolytes can be prepared as thin membranes with > 10-3 S/cm conductivity at
25¿Centigrade. The Phase I project will involve the following tasks: (1) synthesis of composite electrolytes, (2) characterization of the electrolytes, and (3) testing of lithium solid polymer electrolyte cells.
Commercial Applications and Other Benefits as described by the awardee: Polymer electrolyte batteries are expected to be safer than their liquid electrolyte counterparts. Electric vehicle propulsion is a very important application for them. Other uses of polymer batteries are for consumer electronics such as cellular telephones, notebook computers, videocameras and pagers.
Small Business Information at Submission:
Principal Investigator:Dr. K. M. Abraham
Business Contact:Dr. K. M. Abraham
Covalent Associates, Inc.
10 State Street Woburn, MA 01801
Number of Employees: