CaO/CaCO_(3)储能系统材料设计研究进展

Research Progress on Material Design of CaO/CaCO_(3) Energy Storage System

为了解决CaO/CaCO_(3)化学储能系统中材料循环稳定性差、导热系数低、吸光性差的问题,从钙基原料的选择、复合材料中元素的掺杂、运行条件的调整等方面探讨了改善钙基材料性能的方法。结果表明:Al、Mn、Ti等元素的添加可以在材料内形成惰性氧化物,抑制烧结,提高材料的循环稳定性;掺杂具有较高导热系数的材料如Al_(2)O_(3)、MgO、SiO_(2)、ZnO,可以增强材料的导热性能;掺杂Mn、Cu、Fe、Co、Cr等元素能够提高材料的光谱吸收率。相关总结可以为热化学储能材料的设计提供参考。

To solve the problems of inadequate cyclic stability,low thermal conductivity,and insufficient light absorption in CaO/CaCO_(3) energy storage system,discussions were conducted on improvement methods for the performance of calcium-based materials from the aspects of the selection of calcium-based raw materials,addition of doping elements in composite materials,and adjustment of operating conditions.Results show that inert oxides are formed within materials through the addition of elements such as Al,Mn,and Ti,which can inhibit sintering and further improve the cyclic stability of materials.The thermal conductivity of materials can be enhanced by the doping of materials with high thermal conductivity,such as Al_(2)O_(3),MgO,SiO_(2),and ZnO.Additionally,the spectral absorption of materials can be improved by the doping of elements such as Mn,Cu,Fe,Co,and Cr.Corresponding summaries may provide a reference for the design of materials for thermochemical energy storage.