A time-limited demo version of the Li-ion cell application can be downloaded here. This is a Windows version, please contact us for Linux and Mac versions. The app can be run by first extracting the file and then just opening the file. During the first opening of the app, COMSOL Runtime will be installed. This is done automatically when the app is opened and needs to be done only once. One can run any app after COMSOL Runtime has been installed once. More information about COMSOL Runtime can be found here.