A POLYMER ELECTROLYTE FOR LITHIUM BATTERIES

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$50,000.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
17649
Agency Tracking Number:
17649
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
203-a Creek Ridge Road, Greensboro, NC, 27406
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
THE U.S. DEPARTMENT OF ENERGY REQUIRES A SAFE, LITHIUM BATTERY THAT IS RECHARGEABLE, EFFICIENT, AND RELIABLE FOR ELECTRIC VEHICLE APPLICATION. A POLYMER ELECTROLYTE FOR A LITHIUM BATTERY WILL ALLOW PLACEMENT OF THE ELECTRODES IN CLOSE PROXIMITY, BIPOLAR CELL CONSTRUCTION, AND RETARDATION OF UNDESIRABLE SELF DISCHARGE AND CHEMICAL REACTIONS. PHASE I OF THIS PROJECT FOCUSSES ON DEVELOPING A POLYMERIC MATRIX THAT PROVIDES A MACRORETICULATED STRUCTURE, WHICH IS EASILY SOLVATED BY A HIGH CONDUCTIVITY SOLVENT AND FACILITATES LITHIUM-ION CONDUCTION IN ITS MATRIX. THIS TYPE OF POLYMERIC SEPARATOR IS EXPECTED TO YIELD GOOD IONIC CONDUCTIVITY AND WILL BE STABLE IN THE CHOSEN LITHIUM/MANGANESE DIOXIDE (LI/MNO2) CELL CHEMISTRY. THE PROGRAM OBJECTIVES ALSO INCLUDE DEVELOPING A HIGH RATE MNO2 CATHODE MATRIX AND TESTING THESE COMPONENTS IN A BIPOLAR CELL CONFIGURATION TO DEMONSTRATE THE FEASIBILITY OF A HIGH RATE, HIGH ENERGY DENSITY LITHIUM BATTERY THAT IS COMPACT, YET SAFE, TO MEET THE U.S. DOE AND U.S. ADVANCED BATTERY CONSORTIUM REQUIREMENTS. PHASE I IS DEVELOPING A NOVEL POLYMER ELECTROLYTE THAT IS STABLE, DEVELOPS A FREE-STANDING FILM, AND IS A HOST STRUCTURE TO A HIGH CONDUCTIVITY MEDIUM FOR LI(+) IONS. ANOTHER PHASE I OBJECTIVE IS TO DEMONSTRATE THE FEASIBILITY OF A LI/MNO2 BIPOLAR CELL STACK, INCORPORATING THE POLYMER ELECTROLYTE. PHASE II WOULD DEVELOP, DESIGN, FABRICATE, AND TEST LI/MNO2 BATTERY PROTOTYPES FOR MISSION-SPECIFIC APPLICATIONS.

* information listed above is at the time of submission.

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