Novel Anodes for Rapid Recharge High Energy Density Lithium-ion Batteries

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CB67P
Agency Tracking Number: 074723
Amount: $99,945.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: X8.02
Solicitation Number: N/A
Small Business Information
TIAX, LLC
15 Acorn Park, Cambridge, MA, 02140-2301
DUNS: 111046152
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Muharrem Kunduraci
 Principal Investigator
 (617) 498-5067
 Kunduraci.Muharrem@TIAXLLC.com
Business Contact
 Renee Wong
Title: Contracting Officer
Phone: (617) 498-5655
Email: wong.renee@tiaxllc.com
Research Institution
N/A
Abstract
TIAX proposes to develop as a novel negative electrode active material for rechargeable lithium-ion batteries. This material will fill the gap between the state-of-the-art high energy density (e.g. graphitic carbon or amorphous tin-carbon composite) and high charging rate capability (e.g. nano-Li4Ti5O12) anode materials. The novel anode material will have specific capacity of 625 mAh/g and electrochemical potential of ~0.9 V vs. Li, making it capable of meeting NASA battery energy target of 180 Wh/kg. The mechanism of its electrochemical cycling will be by zero-strain topotactic lithiation/delithiation, making it capable of meeting NASA's requirements for cycle life and for rapid recharge capability. This novel anode material will provide for lithium-ion batteries having enhanced safety by virtue of its being non-toxic and having low thermal reactivity. Furthermore, the use of this novel anode chemistry will enable the implementation of other lithium-ion battery system enhancements, such as improved electrolytes. The Phase I program will demonstrate synthesis of the targeted material composition in the desired structure, and will demonstrate electrochemical performance of that material. Correlations between physical, structural and electrochemical properties of this novel anode material will be investigated through the course the program.

* information listed above is at the time of submission.

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