Wide Temperature Range Hybrid Energy Storage Device

Period of Performance: 01/01/2011 - 12/31/2011

$100K

Phase 1 SBIR

Recipient Firm

Eltron Research, Inc.
4600 Nautilus Court South
Boulder, CO 80301
Principal Investigator
Firm POC

Abstract

This proposal concerns the fabrication of a hybrid battery capacitor (HBC) using Eltron's knowledge gained in battery and capacitor research. Energy storage systems are sought for use in remote robotic systems for planetary surface operations. HBCs offer improved performance while minimizing costs.Eltron has developed two different technologies that will be combined to create a hybrid device. First, modified graphite nanofibers (MGNs) with high power density have been prepared for electrochemical capacitors. Second, Eltron has developed a patented, low-cost synthesis method for preparing high surface area LiFePO4 cathode materials. Incorporation of the MGN between the LiFePO4 particles will provide an improved electrically conductive network that will advance charge transfer throughout the electrode, improving power density, cycle lifetime, and discharge capacity. We will also partnerwith an electrolyte manufacturer that has proven wide temperature electrolytes that perform exceptionally well at low temperatures.