DataVXACS Applied Energy MaterialsPaper
journal article·2018-04-23

Free-Standing Nitrogen-Doped Cup-Stacked Carbon Nanotube Mats for Potassium-Ion Battery Anodes

Xinxin Zhao, Yifan Tang, Chaolun Ni, Jiangwei Wang, Alexander Star, Yunhua Xu

ACS Applied Energy Materials· Volume 1· Issue 4
Publisher page
Source abstract

Abstract

Free-standing nitrogen-doped cup-stacked carbon nanotube (NCSCNT) mats were synthesized and tested as anodes for potassium-ion batteries (KIBs). The edge-open structure character of the NCSCNTs allows a facile insertion of K+ ions into the carbon nanotubes. Combined with the nanosized feature and interconnected flexible structure, the NCSCNTs demonstrate impressive electrochemical performance with a reversible capacity of 323 mA h/g and a markedly improved rate capability retaining 75 mA h/g even at 1000 mA/g. Additionally, the free-standing NCSCNT mat electrodes eliminate the utilization of nonactive components of binders and conductive agents during the battery assembly and thereby significantly enhance the total specific capacity of the electrodes.
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Research context

Energy storageNanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, China

Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States

Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China

Funding

Natural Science Foundation of Tianjin City · National Natural Science Foundation of China · Central Committee of the Communist Party of China

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