Cold Energy: This highlights the main target on storing prospective energy in the form of substantially low temperatures. It is the counterpart to the superior-temperature energy saved in warmth batteries. A patented cold thermal energy storage method from O-Hx works by using ice slurry to raise the efficiency of chillers. https://purethermal.co.uk/media-news/pure-thermal-webinar-can-icebat-cold-thermal-energy-storage-provide-an-alternative-cooling-design-option/