Conventional carbon anodes for potassium-ion batteries: Progress, challenges and prospects

IF 5.7 3区材料科学 Q2 Materials Science

New Carbon Materials Pub Date : 2025-08-01 DOI:10.1016/S1872-5805(25)61025-0

Bin CAO , Zheng CUI , Huan LIU , Shuang-yin ZHANG , Bin XU

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Abstract

As an emerging electrochemical energy storage technology, potassium-ion batteries (PIBs), which are considered a “beyond Li-ion” battery system, have attracted tremendous attention due to their potential for providing a high energy density, and having abundant resource, and a low cost. However, their commercialization is hindered by the lack of practical anode materials. Among various reported anodes, conventional carbon materials, including graphite, soft carbon, and hard carbon, have emerged as promising candidates because of their abundance, low cost, high conductivity, and tunable structures. However, these materials have problems such as a low initial Coulombic efficiency, significant volume expansion, and unsatisfactory cyclability and rate performance. Various strategies to solve these have been explored, including optimizing the interlayer spacing, structural design, surface coating, constructing a multifunctional framework, and forming composites. This review provides a comprehensive overview of the recent progress in conventional carbon anodes, highlighting structural design strategies, mechanisms for improving the electrochemical performance, and underscores the critical role of these materials in promoting the practical application of PIBs.

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查看原文本刊更多论文

钾离子电池用传统碳阳极：进展、挑战与展望

钾离子电池（PIBs）作为一种新兴的电化学储能技术，因其具有高能量密度、资源丰富、成本低等优点而备受关注，被认为是“超越锂离子”的电池系统。然而，由于缺乏实用的阳极材料，它们的商业化受到阻碍。在各种报道的阳极中，传统的碳材料，包括石墨、软碳和硬碳，因其丰富、低成本、高导电性和可调结构而成为有希望的候选者。然而，这些材料存在初始库仑效率低、体积膨胀大、循环性能和速率性能不理想等问题。为了解决这些问题，研究人员探索了各种策略，包括优化层间距、结构设计、表面涂层、构建多功能框架和形成复合材料。本文综述了近年来传统碳阳极的研究进展，重点介绍了结构设计策略、提高电化学性能的机制，并强调了这些材料在促进PIBs实际应用中的重要作用。下载：下载高分辨率图片（119KB）下载：下载全尺寸图片

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来源期刊

New Carbon Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.10

自引率

8.80%

发文量

3245

审稿时长

5.5 months

期刊介绍： New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.