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Engineering All‐Purpose Amorphous Carbon Nanotubes with High N/O‐Co‐Doping Content to Bridge the Alkali‐Ion Batteries and Li Metal Batteries
Author(s) -
Zhang XiaoHua,
Jiang Ru,
Fan ChaoYing,
Xie Dan,
Li Bao,
Zhang JingPing,
Wu XingLong
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202006566
Subject(s) - materials science , anode , electrochemistry , electrolyte , energy storage , chemical engineering , nanotechnology , doping , alkali metal , nucleation , amorphous carbon , carbon nanotube , amorphous solid , electrode , chemistry , organic chemistry , optoelectronics , power (physics) , physics , quantum mechanics , engineering
Abstract All‐purpose electrode materials (APEMs), which can be effectively available on not only alkali‐ion batteries but also emerging Li metal batteries, are urgently pursued to open up cost‐efficient tactics for practical application of energy storage systems (ESSs), but still remain challenging. Herein, the hierarchical porous carbon nanotubes network (NOPCT) with well‐tailored nanoarchitecture and high N/O‐co‐doping content (20.6 at%) is developed to present large‐span application on ESSs. As for Li/Na‐ion batteries, the NOPCT delivered excellent cycle stability and robust rate performance in a conventional ester‐based electrolyte. Moreover, NOPCT also serving as a metal Li host can effectively guide smooth and uniform Li nucleation/growth to enhance the cycle stability of hybrid Li metal anodes. In addition, the NOPCT played an important role in the sustainability of sulfur electrodes, promising the feasibility of shared NOPCT for practical Li–S batteries. First‐principle calculations demonstrate that graphitic‐N and CO function groups favor for improving electron conductivity while the pyridinic‐N and CO function group make sense for improved Li/Na adsorption and affinity through Lewis acid‐base interaction, enlightening the interplay between various doped categories on improved electrochemical performance of NOPCT. This work provides profound theoretical and experimental insight into the design and development of APEMs for advanced ESSs.