articleAdvanced MaterialsJan 14, 2020Closed access

Sodium/Potassium‐Ion Batteries: Boosting the Rate Capability and Cycle Life by Combining Morphology, Defect and Structure Engineering

HHHuijuan HuangRXRui XuYFYuezhan FengSZSifan ZengYJYu Jiang

University of Science and Technology of China · Hefei National Center for Physical Sciences at Nanoscale · +4 more institutions

PubMed
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Abstract

Abstract Carbon‐based materials have been considered as the most promising anode materials for both sodium‐ion batteries (SIBs) and potassium‐ion batteries (PIBs), owing to their good chemical stability, high electrical conductivity, and environmental benignity. However, due to the large sizes of sodium and potassium ions, it is a great challenge to realize a carbon anode with high reversible capacity, long cycle life, and high rate capability. Herein, by rational design, N‐doped 3D mesoporous carbon nanosheets (N‐CNS) are successfully synthesized, which can realize unprecedented electrochemical performance for both SIBs and PIBs. The N‐CNS possess an ultrathin nanosheet structure with hierarchical pores,…

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537
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8

Topics & keywords

Topics
Keywords
  • Materials science
  • Anode
  • Electrochemistry
  • Chemical engineering
  • Potassium
  • Nanosheet
  • Intercalation (chemistry)
  • Carbon fibers
UN Sustainable Development Goals
  • Responsible consumption and production
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