App note from AVX about MLCC, Tantalum, Tantalum Polymer and Supercapacitors. Link here (PDF)
Tantalum, MLCC, and super capacitor technologies are ideal for many energy storage applications because of their high capacitance capability. These capacitors have drastically different electrical and environmental responses that are sometimes not explicit on datasheets or requires additional knowledge of the properties of materials used, to select the best solution for a given design.