Phase-change materials (PCMs) are utilized for thermal energy storage (TES) to bridge
the gap between supply and demand of energy. Organic PCMs, similar to paraffins, fatty
acids, and polyethylene glycol, are extensively explored, thanks to their high TES
capacity (similar to 5-10 times more than the sensible heat storage of water/rock),
wide temperature range (spanning from -5 degrees C to 190 degrees C), good thermal
stability over heating-cooling cycles (similar to 100 cycles), etc. However, "leakage"
of PCMs upon transformation from solid to liquid has limited their usage as TES materials;
thus, PCMs are confined to a biopolymeric framework for circumventing seepages. However,
extensive analysis has concluded that there is a deficiency in availability of consolidated
data on biopolymeric-based framework for PCMs. Thus, this review covers various literatures
on the application of assorted biopolymers as framework for PCM. Simultaneously, we
have also discussed on importance of biopolymers for constructing a framework for
PCMs. Finally, the review concludes with future prospects, along with possibilities
and disputes on the course of their practical application.