A hybrid shipping container is a shipping system that uses the energy of phase-change material (PCM) in combination with the ability to recharge without removing the media. This ability is known as cold-energy battery.[1]
Currently, this technology is only being used in a limited number of shipping containers.
A Cold-energy battery works by storing energy to a given temperature and using its thermal mass to maintain this temperature.[citation needed] It can be recharged by being placed in a temperature range applicable to its phase change window.