Project Title:

Rechargeable Lithium/Titanium-Disulfide Cells with Long Cycle-Life

10.02-6901
NAS7-1081
Rechargeable Lithium/Titanium-Disulfide Cells
	with Long Cycle-Life
Wilson Greatbatch Ltd.
	10000 Wehrle Drive
	Clarence, NY 14031
		Esther S. Takeuchi
(716-759-6901)

Abstract:

	The objective of this project is the development of an AA lithium/titanium-disulfide
rechargeable cell with an energy density above 100 Wh/kg and with a cycle life of
1000 discharge-charge cycles. The project will focus on the design, assembly, and
testing of AA cells in practical hardware. Experimental design techniques will be
used to investigate modifications of anode, cathode, and electrolyte. Data analysis
of the experiment results will determine the variable having the greatest impact
on cycle life and any interaction occurring between variables. Phase II efforts would
concentrate on the area in greatest need of improvement for a cell with the desired
performance specifications.

Potential Commercial Application:

Potential Commercial Applications: An advanced rechargeable battery could potentially
fill any segment of the current $8 billion rechargeable battery market; early uses
would most likely be in the specialized cell market.