为了研究未来可行的大规模储能技术，介绍储能的必要性，阐述机械储能、储电、储热等储能技术的优缺点，归纳能够媲美化石能源储能量级的大规模储能技术的特点.分析表明卡诺电池技术(或热泵式储电技术)以及热化学储热技术是目前最有望实现大规模储能的技术.

The necessity for energy storage technologies was analyzed in order to develop feasible large-scale energy storage technologies in the future. Besides, the advantages and disadvantages of various energy storage technologies, including mechanical energy storage, electricity storage, and thermal energy storage, were reviewed. Moreover, the characteristics of large-scale energy storage technologies comparable to fossil fuels were summarized. The analysis shows that Carnot battery (also known as pumped-thermal energy storage) and thermochemical heat storage are the most promising technologies to achieve large-scale energy storage at present.