NASA 1996 SBIR Phase I

PROJECT TITLE : : A High Performance Lithium Battery Using an Alloy Anode

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

A program to develop a novel lightweight high energy density lithium battery optimized for the high cycle life and high energy density requirements of satellite applications is described. The proposed cell, which will permit a dramatic reduction in spacecraft weight, size and cost, uses a LiCoO2 based cathode material, either a liquid or polymeric electrolyte and a lithium-magnesium alloy anode. An important component of the proposed cell, the alloy anode, will permit the fabrication of a battery with exceptional specific energy, energy density, and cycle life. The cell will incorporate a carbon fiber web in the cathode structure further reducing the weight of the cell and improving high rate performance. The cell will also incorporate advanced composite materials in the case and electrode components further reducing the weight of the cells. The proposed prismatic design will efficiently utilize the available space. A highly structured collaborative program is described to develop a novel battery chemistry specifically designed for satellite applications that will also find numerous dual use applications. The proposed program includes component materials selection, fabrication and testing as well as the fabrication and testing of prototype cells.

Commercial Satellites, Power Station Load Leveling, Portable Communications devices, Computers.

Dr. Grant M. Ehrlich
Yardney Technical Products, Inc.
82 Mechanic Street
Pawcatuck, CT 06379

Yardney Technical Products, Inc.
82 Mechanic Street
Pawcatuck, CT 06379