蓄能(电能、热能等)器是使能量的供与求双方在时间和地点上取得一致的关键技术环节。它对经济地利用可再生能源(风能、太阳能等),保障电站的均衡供电,尤其是对获得用能的机动性,如制造车辆等具有重要的意义。但更重要的是,它既可有效地利用能源, Energy storage (electric energy, thermal energy, etc.) is the key technology link that enables the supply and demand of energy to achieve consistency in both time and place. It is of great significance for the economic use of renewable energy (wind energy, solar energy, etc.) to ensure the balanced power supply of the power station, and in particular to obtain the mobility of energy use, such as the manufacture of vehicles. But more importantly, it can use energy efficiently.