Deng Qinglin, Zhao Yang, Zhu Xuhui, Yang Kaishuai, Li Mai
School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China.
Nanomaterials (Basel). 2023 Sep 11;13(18):2539. doi: 10.3390/nano13182539.
Developing high-performance anodes is one of the most effective ways to improve the energy storage performances of potassium-ion batteries (PIBs). Among them, Ti-based oxides, including TiO, KTiO, KTiO, KTiO, LiTiO, etc., as the intrinsic structural advantages, are of great interest for applications in PIBs. Despite numerous merits of Ti-based oxide anodes, such as fantastic chemical and thermal stability, a rich reserve of raw materials, non-toxic and environmentally friendly properties, etc., their poor electrical conductivity limits the energy storage applications in PIBs, which is the key challenge for these anodes. Although various modification projects are effectively used to improve their energy storage performances, there are still some related issues and problems that need to be addressed and solved. This review provides a comprehensive summary on the latest research progress of Ti-based oxide anodes for the application in PIBs. Besides the major impactful work and various performance improvement strategies, such as structural regulation, carbon modification, element doping, etc., some promising research directions, including effects of electrolytes and binders, MXene-derived TiO-based anodes and application as a modifier, are outlined in this review. In addition, noteworthy research perspectives and future development challenges for Ti-based oxide anodes in PIBs are also proposed.
开发高性能阳极是提高钾离子电池（PIB）储能性能的最有效方法之一。其中，包括TiO、KTiO、KTiO、KTiO、LiTiO等在内的钛基氧化物，因其固有的结构优势，在PIB应用中备受关注。尽管钛基氧化物阳极具有诸多优点，如出色的化学和热稳定性、丰富的原材料储备、无毒且环保等特性，但其较差的导电性限制了其在PIB中的储能应用，这是这些阳极面临的关键挑战。尽管各种改性方案有效地用于提高其储能性能，但仍存在一些相关问题需要解决。本综述全面总结了钛基氧化物阳极在PIB应用中的最新研究进展。除了主要的有影响力的工作和各种性能改进策略，如结构调控、碳改性、元素掺杂等，本综述还概述了一些有前景的研究方向，包括电解质和粘结剂的影响、MXene衍生的钛基氧化物阳极及其作为改性剂的应用。此外，还提出了PIB中钛基氧化物阳极值得关注的研究观点和未来发展挑战。
