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Novel Si Nanostructure Material for Lithium-ion Battery Anode

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-10-C-0044
Agency Tracking Number: O092-EP5-2035
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: OSD09-EP5
Solicitation Number: 2009.2
Timeline
Solicitation Year: 2009
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-02-01
Award End Date (Contract End Date): 2010-07-31
Small Business Information
3006 Longhorn Blvd. Suite 107
Austin, TX 78758
United States
DUNS: 013475129
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Nan Jiang
 Scientist
 (512) 339-5020
 djiang@appliednanotech.net
Business Contact
 Nancy Ruel
Title: Dir., Contracts and Program Mgmt.
Phone: (512) 339-5020
Email: nruel@appliednanotech.net
Research Institution
N/A
Abstract

To obtain a noticeable improvement in the specific capacity of Li-ion battery, the conventional carbonaceous anode needs to be replaced with anodes having higher energy capacity. Si is far ahead of the other metals or metalloids in terms of high energy capacity; however, practical implementation using Si as an anode is hampered by the complete disintegration during the charge/discharge process and poor material cycle-ability. These problems are attributed to the significant volume changes that occur during charge/discharge process, resulting in poor mechanical stability and structural break-down. In order to overcome these challenges and develop Li-ion batteries with excellent charge rate capabilities and high power densities, we propose a novel nanostructured Si electrode and fabrication process that will effectively prevent particle aggravation during the charge/discharge cycle while providing high electronic conduction and mitigate structural damage that otherwise would be expected from large structural variations.

* Information listed above is at the time of submission. *

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