水滑石基电极材料的结构调控及电化学储能应用研究进展

水滑石是一种具有层板金属阳离子可搭配、层间客体可替代和高分散性的二维层板状纳米材料,在能量存储与转换应用领域获得广泛的关注和研究。但由于水滑石自身存在容易聚集和电导率差并且在电化学循环过程中易粉化的问题,因此需对水滑石基电极材料进行针对性结构设计,从而提高其电化学性能。系统介绍了水滑石材料的结构与性质特点和当下对其结构调控的研究进展。另外,还详细介绍了其在电化学储能领域的应用进展,主要包括锂离子电池和超级电容器电极材料领域,并展望了今后的研究趋势。

Progress on Structure Regulation and Electrochemical Energy Storage Application of Layered Double Hydroxides Based Electrode Materials

Layered double hydroxides(LDHs) are two-dimensional layered nanomaterial with high controllability of metal cations and interlayer guests, and high dispersion.Benefiting from their properties, LDHs have attracted many attentions in the field of energy storage and conversion.However, LDHs have the weakness of easy to aggregate and poor conductivity, and easily powdered during the electrochemical cycling process.Therefore, it is necessary to design the structure of LDHs-based electrode materials to improve their electrochemical performance.This work systematically introduces the structure and properties of LDHs and the current research progress of structural regulation.In addition, the application progress of LDHs materials for energy storage and conversion field is also introduced in detail, mainly including lithium ion batteries and super-capacitors.Finally, the research trend in the future is prospected.