Microcalorimetry has been successfully applied to the study of electrochemical components and structural materials during the design and development of new batteries. The Ampoule form of the Microcalorimeter is ideally suited to the examination of the electrochemical materials in forms such as pastes, liquids, powders or even the entire battery. The method is non-destructive, Analysis of the activity of the components is fast; for example, a reaction normally taking several weeks or months can be observed within a few hours when using this technique. The variable full-scale readout range of the instrument ensures a sensitive measurement of the activity of a wide range of samples,