STTR Phase II: Using Nanoparticle Oxide Coatings to Extend Cycle Life of Cathode Materials in Lithium-Ion Batteries

Award Information
National Science Foundation
Award Year:
Phase II
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
SolRayo, Inc.
4005 Felland Rd., Suite 107, Madison, WI, 53718-6461
Hubzone Owned:
Minority Owned:
Woman Owned:
Principal Investigator:
Walter Zeltner
(608) 244-2799
Business Contact:
Walter Zeltner
(608) 244-2799
Research Institution:
Board of Regents of the University of Wisconsin System
Marc A Anderson
1860 Van Hise Hall
1220 Linden Drive
Madison, WI, 53706-
(608) 262-2324
Nonprofit college or university
This Small Business Innovation Research (SBIR) Phase II project seeks to increase the cycle life of cathode materials used in lithium-ion batteries by a factor of ten in high-temperature applications by applying protective nanoporous ceramic coatings. SolRayo will investigate the effects that changing several variables that control the nanoporous structure of ceramic coatings have on the cycle life of cathode materials. Such variables include the amount or thickness of the coating, the pH of the suspension of the coating material, the deposition of layers of different ceramic materials on the cathodes, and different methods for depositing the coatings on the cathodes. The materials to be investigated will include TiO2, ZrO2 and others proposed by our industrial partner. The broader impacts of this research are that, if successful, this project will improve the cycle life of lithium-ion batteries and allow inherently safer and less expensive materials to be employed. Although lithium-ion batteries have gained wide acceptance in consumer electronic products, their use in other markets has been limited by their lifetimes and safety concerns, particularly in applications at higher temperatures. Improving the lifetime and safety of the materials used in these batteries will enhance their market penetration. Preliminary cost estimates indicate that licensing the coated materials to industry could provide approximately $100 million annually in royalties on sales. This work will also benefit the nation by improving our understanding of nanoparticle coating techniques suitable for a variety of energy storage applications.

* information listed above is at the time of submission.

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