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A High Specific Energy Bipolar Silver/Zinc Battery Using a Novel Iightweight Bipolar Electrode

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 25751
Amount: $99,953.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
4724 Brentwood Circle
Provo, UT 84604
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Rodney M Lafollette
 (801) 225-1974
Business Contact
Phone: () -
Research Institution
N/A
Abstract

An improved silver/zinc battery is a leading candidate for many applications requiring both high specific power and high specific energy. The silver and zinc electrodes offer important advantages over alternate electrode materials, such as equivalent weight and favorable kinetics. Silver/zinc batteries have seen application in systems such as torpedoes,satellites, underwater vehicles, aircraft,and missiles.However, more widespread use of this battery will be limited unless the combination specific energy can be increased. This work involves the development of a bipolar silver/zinc battery, with a specific energy which is substantially superior to the best primary silver/zinc batteries, but which is capable of delivering its energy through many charge/discharge cycles. The design of the battery centers on existing technology for high cycle life silver/zinc batteries, but also employs an efficient bipolar design, a lightweight thin, highly conductive bipolar electrode substrate, an efficient bipolar design, a lightweight, thin, highly conductive bipolar electrode substrate, an effective bipolar cell seal, and electrolyte modifcations designed to reduce the solubility of zinc. se: electrolyte modifications designed to reduce the solubility of zinc. The goal of this work is the demonstration of a ten cell bipolar battery, with a specific energy of > 399 W.hr/kg and which can be used through several deep cycles. The technology is adaptable to higher specific energy secondary batteries as well.

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

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