Carnot battery and energy storage system

Abstract

A Carnot battery (10) includes a heat source device (11) that converts electric power into heat to generate hot air, a high-temperature heat accumulator (12) that is disposed downstream of the heat source device (11) and includes a phase change material configured to receive the hot air supplied by the heat source device (11) to accumulate and dissipate heat, and a steam power generation plant (13) that is disposed downstream of the high-temperature heat accumulator (12) and collects heat from the hot air supplied by the high-temperature heat accumulator (12) to convert the heat into electric power. The high-temperature heat accumulator (12) includes a covering member that covers the phase change material, and the phase change material may accumulate and dissipate heat in a molten state in the covering member.

Dependencies are inferred from the claim text.