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Experimental Electrochemical Capacitor Test Results

Published online by Cambridge University Press:  10 February 2011

R. B. Wright ,
T. C. Murphy ,
Susan A. Rogers  and
Raymond A. Sutula
R. B. Wright
Affiliation:
Idaho National Engineering & Environmental Laboratory, P.O. Box 1625, Idaho Falls, ID 83415–3830, rbw2@inel.gov
T. C. Murphy
Affiliation:
Idaho National Engineering & Environmental Laboratory, P.O. Box 1625, Idaho Falls, ID 83415–3830, rbw2@inel.gov
Susan A. Rogers
Affiliation:
U. S. Department of Energy, Washington, D. C. 20585
Raymond A. Sutula
Affiliation:
U. S. Department of Energy, Washington, D. C. 20585
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Abstract

Various electrochemical capacitors (ultracapacitors) are being developed for hybrid vehicles as candidate power assist devices for the Partnership for a New Generation of Vehicles (PNGV) fast-response engine. The envisioned primary functions of the ultracapacitor are to level the dynamic power loads on the primary propulsion device and recover available energy from regenerative breaking during off-peak power periods. This paper will present test data from selected U.S. Department of Energy (DOE) supported ultracapacitor projects designed to meet the fast response engine requirements.

This paper will address the temperature dependence of test data obtained from a set of three devices provided from Maxwell Energy Products, Inc. These devices are rated at 2300 F at 2.3 V. Constant-current, constant-power, and self-discharge testing as a function of temperature have been conducted. From these tests were determined the capacitance, equivalent series resistance, specific energy and power, and the self-discharge energy loss factor as a function of the device operating temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 496: Symposium Y – Materials For Electrochemical Energy Storage & Conversion II… , 1997 , 661
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

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