Research status of heat storage technology

With the massive consumption of fossil fuels, the world is gradually facing the problem of energy exhaustion and environmental pollution. Energy plays an intuitive and important role in today's human development and global pattern. The geopolitical crisis caused by this is becoming increasingly fierce and the world energy price wave. In order to seek a more stable source of energy to get rid of the limitations of fossil energy, new energy becomes a new direction of development. In theory, only 23% of the Earth's potential renewable energy (solar, tidal and wind) could be converted to meet today's energy needs, but due to time and geographical factors, utilization is still low. Therefore, the development of heat energy storage technology is of great significance to alleviate energy pressure and promote sustainable development of social economy. In recent years, heat energy storage technology has become one of the most attractive heat energy utilization technologies and has attracted wide attention. At present, it has become a research hotspot worldwide. This paper summarizes the latest research status of heat storage technology in recent years, including the new progress of some technologies. Different heat storage technologies are suitable for different environment and use background, and different energy storage technologies are compared, so as to facilitate the analysis and research of new energy heat storage research under different circumstances.