A review of the properties and applications of different energy storage

TL;DR: In this article, a review of energy storage technologies, including storage types, categorizations and comparisons, is presented, including new energy storage types as well as important advances and developments in energy storage. [pdf]
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What are the working fluids of energy storage devices

Functional thermal fluids, a general name of a class of heat-related functional fluids, are generally a new type of heat storage and heat transfer medium with heat storage and enhanced heat transfer function by mixing single phase fluids with specific materials. [pdf]
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