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Small Business Innovation Research/Small Business Tech Transfer

Electrochemical Capacitor Development for Pulsed Power Communications, Phase II

Completed Technology Project

Project Description

Electrochemical Capacitor Development for Pulsed Power Communications, Phase II
In this NASA Phase II SBIR Project, we will continue the development of graphitic nanosheets (GNS) for electrochemical capacitor (EC) electrode materials. In the Phase I project, treatments of the electrode materials resulted in increases of relative capacitance (2x), relative energy (4x), and relative power (25%). These results surpassed those of commercially available ECs for relative power and will fulfill NASA's need for energy storage materials for communications and navigation. We will address the following in the Phase II program: (1) Increase performance through exfoliation, activation, and other surface treatments; (2) Use these materials as supports for the deposition of pseudocapacitive species to form a nanocomposite electrode; (3) Improve the test cell fabrication to decrease equivalent series resistance (ESR) and passive layer formation; (4) Purify electrode materials and electrolyte to decrease leakage current and self-discharge; (5) Perform environmental testing including temperature, pressure, and vibration; (6) Fabricate, test, and deliver functional prototype cells to NASA at the end of the Phase II project. This technology is currently at a TRL of 3-4 and we expect to achieve a TRL of 5 with delivery of prototype cells to NASA for testing. More »

Primary U.S. Work Locations and Key Partners

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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.