Issue 9, 2023

Hard carbons: potential anode materials for potassium ion batteries and their current bottleneck

Abstract

Owing to the desire for fulfilled energy density and competitively low production costs of lithium-ion battery supplements, potassium ion batteries with the advantages of abundant raw material sources, high safety and excellent electrochemical performance have been a strong contender. In practical applications, hard carbon materials are considered promising anodes owing to their wide range of sources, remarkable economic benefits, environmental friendliness and excellent performance. At present, researchers focus on the study of structure–activity relationship and energy storage mechanism, aiming to obtain universal rules and guide the real commercialization of hard carbon anodes. For this purpose, we herein summarize the current mainstream research views on the K+ storage mechanism, list the common hard carbon anodes and discuss the effects of various modification techniques. In addition, we notice the bottleneck of hard carbon anode development and propose the future direction for technical improvement.

Graphical abstract: Hard carbons: potential anode materials for potassium ion batteries and their current bottleneck

Article information

Article type
Review Article
Submitted
31 May 2023
Accepted
13 Jul 2023
First published
19 Jul 2023
This article is Open Access
Creative Commons BY-NC license

Energy Adv., 2023,2, 1294-1308

Hard carbons: potential anode materials for potassium ion batteries and their current bottleneck

X. Lu, H. Peng, G. Liu, F. Qi, C. Shi, S. Wu, Y. Wu, H. Yang, J. Shan and Z. Sun, Energy Adv., 2023, 2, 1294 DOI: 10.1039/D3YA00241A

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