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Phase change energy storage technology has the advantages of high heat storage density and constant temperature, so it has great potential for large-scale commercialization. The development of phase change materials is very important to the application of phase change energy storage technology. To solve the problems of poor heat transfer performance and easy leakage of phase change materials, extensive research has been conducted based on the heat transfer enhancement and packaging of phase change materials. The characteristics of thermal energy storage technologies are firstly compared. Then, the classification and properties of phase change materials are summarized. The progress of heat transfer and storge enhancement is discussed from the aspects of increasing heat transfer area, thermal conductivity, melting latent heat and specific heat capacity. The packaging of phase change materials is also discussed. Finally, a prospect for the future development direction of phase change energy storage is made.

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相变储能技术具有储热密度大、温度恒定等优点，大规模商业化潜力巨大。相变材料的开发对相变储能技术的应用至关重要，为解决相变材料传热性能差、易泄露等问题，围绕相变材料的传热和储热强化、封装开展了广泛研究。对比了热储能技术的特点，概述了潜热储能相变材料的分类与性质；并从换热面积增大以及热导率、熔化潜热和比热容提高等方面，讨论传热和储热强化研究进展；论述了相变材料的封装，对今后相变储能的发展方向进行了展望。

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李国俭（1977），男，硕士，高级工程师，主要研究方向为能源电力技术，lgjian77@126.com。

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李国俭（1977），男，硕士，高级工程师，主要研究方向为能源电力技术，lgjian77@126.com。

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