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The general rule of power converted from chemical energy to electrical energy

Lookup NU author(s): Muzhong Shen, Dr Jie ZhangORCiD, Emeritus Professor Keith Scott

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Abstract

Electrochemical power sources are widely used to convert chemical energy to electrical energy. Here we report an equation to describe the electrical power characteristics i.e., potential vs. the current performance curves, namely polarization curves of electrochemical power sources. From this basic equation, we describe the performance curve of general electrochemical power sources with three power source parameters: E0: equilibrium potential; R: internal resistance; and K: power conversion coefficient. The calculated values from this equation agree with the performance curves of power sources such as different type of fuel cells and batteries. The concept of the power convert coefficient is a new criterion to evaluate and compare the characteristics and capacity of different electrochemical power sources.

Publication metadata

Author(s): Shen M, Zhang J, Scott K

Publication type: Article

Publication status: Published

Journal: Fuel Cells

Year: 2004

Volume: 4

Issue: 4

Pages: 388-393

ISSN (print): 1615-6846

ISSN (electronic): 1615-6854

Publisher: Wiley - VCH Verlag GmbH & Co. KGaA

URL: http://dx.doi.org/10.1002/fuce.200400031

DOI: 10.1002/fuce.200400031

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