2023 roadmap for potassium-ion batteries

• Published in: JPhys Energy Vol. 5; no. 2; pp. 21502 - 21574
• Main Authors: Xu, Yang, Titirici, Magda, Chen, Jingwei, Cora, Furio, Cullen, Patrick L, Edge, Jacqueline Sophie, Fan, Kun, Fan, Ling, Feng, Jingyu, Hosaka, Tomooki, Hu, Junyang, Huang, Weiwei, Hyde, Timothy I, Imtiaz, Sumair, Kang, Feiyu, Kennedy, Tadhg, Kim, Eun Jeong, Komaba, Shinichi, Lander, Laura, Le Pham, Phuong Nam, Liu, Pengcheng, Lu, Bingan, Meng, Fanlu, Mitlin, David, Monconduit, Laure, Palgrave, Robert G, Qin, Lei, Ryan, Kevin M, Sankar, Gopinathan, Scanlon, David O, Shi, Tianyi, Stievano, Lorenzo, Tinker, Henry R, Wang, Chengliang, Wang, Hang, Wang, Huanlei, Wu, Yiying, Zhai, Dengyun, Zhang, Qichun, Zhou, Min, Zou, Jincheng
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01-04-2023; IOP publishing
• Subjects: Alternative technology; Chemical Sciences; electrolytes; Energy storage; Liquid-solid interfaces; Lithium; Lithium-ion batteries; Material chemistry; next generation battery; Potassium; potassium-ion batteries; Rechargeable batteries; Renewable energy; Sodium-ion batteries; solid-electrolyte interphase; sustainability; techno-economic assessment; Transition metals
• ISSN: 2515-7655; 2515-7655
• DOI: 10.1088/2515-7655/acbf76

Abstract
The heavy reliance of lithium-ion batteries (LIBs) has caused rising concerns on the sustainability of lithium and transition metal and the ethic issue around mining practice. Developing alternative energy storage technologies beyond lithium has become a prominent slice of global energy research portfolio. The alternative technologies play a vital role in shaping the future landscape of energy storage, from electrified mobility to the efficient utilization of renewable energies and further to large-scale stationary energy storage. Potassium-ion batteries (PIBs) are a promising alternative given its chemical and economic benefits, making a strong competitor to LIBs and sodium-ion batteries for different applications. However, many are unknown regarding potassium storage processes in materials and how it differs from lithium and sodium and understanding of solid–liquid interfacial chemistry is massively insufficient in PIBs. Therefore, there remain outstanding issues to advance the commercial prospects of the PIB technology. This Roadmap highlights the up-to-date scientific and technological advances and the insights into solving challenging issues to accelerate the development of PIBs. We hope this Roadmap aids the wider PIB research community and provides a cross-referencing to other beyond lithium energy storage technologies in the fast-pacing research landscape.