Improved Safety in Large Format Lithium-Ion Cells and Batteries

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,668.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
N65538-10-M-0086
Award Id:
98236
Agency Tracking Number:
N093-197-0845
Solicitation Year:
n/a
Solicitation Topic Code:
NAVY 09-197
Solicitation Number:
n/a
Small Business Information
82 Mechanic Street, Pawcatuck, CT, 06379
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
617158712
Principal Investigator:
GregoryMoore
Program Manager
(860) 599-1100
gmoore@lithion.com
Business Contact:
VincentYevoli
President, Chief Operatin
(860) 599-1100
vyevoli@lithion.com
Research Institute:
n/a
Abstract
Yardney Technical Products (YTP) has put together a team of industry experts to address the safety of large format, high energy density Li-ion cells and batteries. YTP will utilize Exponent, Inc and their extensive experience in battery failure analysis and Celgard, Inc and their comprehensive electrode level thermal modeling capability. The effort begins with YTP building cells to evaluate a range of cathode materials (Spinels, Layered, and Olivines) in high energy cell chemistries for both available energy and reactivity in failure modes. YTP will also evaluate the practicality of hybrid separator systems in which the separator and/or electrodes are coated with a thin electrically insulating, temperature impervious layer. These layers would leave a residual electrical insulator in place in the result of separator failure from an over temperature condition. This creates a strong barrier to propagation resulting from an internal electrical short. Finally, YTP will model various novel cell geometries that are designed to interrupt the propagation front of a failure event. In summary, Phase I will identify the safest cathodes and anode systems that can meet the energy requirements, evaluate a novel separator system and model or empirically test the ability of novel cell geometries to terminate event propagation.

* information listed above is at the time of submission.

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