Journal
SUSTAINABLE ENERGY & FUELS
Volume 6, Issue 9, Pages 2087-2112Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2se00067a
Keywords
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Funding
- German Research Foundation [DFG: LE2249/5-1]
- Sino-German Center for Research Promotion [GZ1579]
- National Natural Science Foundation of China [22076116]
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This review summarizes the recent advances and challenges in potassium-ion battery anode materials, focusing on nanostructured MCs. The electrochemical reaction mechanisms and material synthesis methods are also briefly introduced.
In next-generation rechargeable batteries, potassium-ion batteries (KIBs) have been deemed to be one of the most promising candidates as a complement for lithium-ion batteries. Anodes as a component of ion batteries have a great effect on the safety and electrochemical performance. Among various developed anode materials, metal selenides (MSs) have been a popular option by merits of their superior material properties and high specific capacities. However, they are restricted by some intrinsic problems, such as large volume expansion and severe side reactions during electrochemical reactions, which limit their application to a certain degree. The strategy of structural design can endow MSs with superior material and electrochemical properties, making MSs exhibit better electrochemical performance. In this review, we summarize the recent advances in nanostructured MCs as KIB anodes. Meanwhile, their electrochemical reaction mechanisms and material synthesis methods are introduced briefly. Finally, the present challenges and future research directions are discussed.
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