中国物理B ›› 2021, Vol. 30 ›› Issue (5): 56801-056801.doi: 10.1088/1674-1056/abf10e

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Two-dimensional PC3 as a promising anode material for potassium-ion batteries: First-principles calculations

Chun Zhou(周淳), Junchao Huang(黄俊超), and Xiangmei Duan(段香梅)   

  1. School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
  • 收稿日期:2021-01-06 修回日期:2021-03-03 接受日期:2021-03-23 出版日期:2021-05-14 发布日期:2021-05-14
  • 通讯作者: Xiangmei Duan E-mail:duanxiangmei@nbu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11574167 and 11874033) and the KC Wong Magna Foundation in Ningbo University.

Two-dimensional PC3 as a promising anode material for potassium-ion batteries: First-principles calculations

Chun Zhou(周淳), Junchao Huang(黄俊超), and Xiangmei Duan(段香梅)   

  1. School of Physical Science and Technology, Ningbo University, Ningbo 315211, China
  • Received:2021-01-06 Revised:2021-03-03 Accepted:2021-03-23 Online:2021-05-14 Published:2021-05-14
  • Contact: Xiangmei Duan E-mail:duanxiangmei@nbu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11574167 and 11874033) and the KC Wong Magna Foundation in Ningbo University.

摘要: With the diversified development of the battery industry, potassium-ion batteries (PIBs) have aroused widespread interest due to their safety and high potassium reserves on earth. However, the lack of suitable anode materials limits their development and application to a certain extent. Based on first-principles calculations, we investigate the possibility of using PC3 monolayer as the anode material for PIBs. PC3 sheet has excellent electrical properties and meets the prerequisite of anode materials. The storage capacity of potassium is as high as 1200 mAh·g-1, which is better than many other reported potassium-ion anode materials. In addition, the outstanding advantages of PC3 sheet, such as low diffusion barrier and moderate open-circuit voltage, make it a potential anode candidate for PIBs.

关键词: two-dimensional materials, potassium-ion batteries, first-principles

Abstract: With the diversified development of the battery industry, potassium-ion batteries (PIBs) have aroused widespread interest due to their safety and high potassium reserves on earth. However, the lack of suitable anode materials limits their development and application to a certain extent. Based on first-principles calculations, we investigate the possibility of using PC3 monolayer as the anode material for PIBs. PC3 sheet has excellent electrical properties and meets the prerequisite of anode materials. The storage capacity of potassium is as high as 1200 mAh·g-1, which is better than many other reported potassium-ion anode materials. In addition, the outstanding advantages of PC3 sheet, such as low diffusion barrier and moderate open-circuit voltage, make it a potential anode candidate for PIBs.

Key words: two-dimensional materials, potassium-ion batteries, first-principles

中图分类号:  (Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties)

  • 68.65.-k
82.47.Cb (Lead-acid, nickel-metal hydride and other batteries) 71.20.Nr (Semiconductor compounds) 71.15.Mb (Density functional theory, local density approximation, gradient and other corrections)