Hyundai Motor Company

Kia Motors Corporation

Suk Hwan Yun

Woong Pyo Hong

Jin Hyeok Cha

Sun Bo Shim

The present invention provides a method for measuring gas permeability of a polymer membrane, for example, by evaluating polymer-structure influence on gas permeability in of a polymer membrane.

Method of evaluating gas permeability of polymer membrane based on molecular dynamics simulation

A method of evaluating a movement tendency of ions in an electrolyte membrane includes counting inter-movement ions, counting intra-movement ions and calculating the ratio of the intra-movement ions and inter-movement of ions. The movement tendency of ions is predicted based on the ratio. In the case of evaluating a movement tendency of ions using the method, since the structure of the electrolyte membrane in which the ratios of intra-movement and inter-movement are maximized is predicted through measurement of the ratios of the intra-movement and inter-movement of ions, ohmic resistance that may occur in a membrane-electrode assembly (MEA) may be reduced. The electrolyte membrane having the optimal structure predicted by the method can be applied to a fuel cell to increase its performance.

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Gyeonggi-do, South Korea

Suk Hwan Yun