首页|Pseudocapacitive Heteroatom-Doped Carbon Cathode for Aluminum-Ion Batteries with Ultrahigh Reversible Stability

Pseudocapacitive Heteroatom-Doped Carbon Cathode for Aluminum-Ion Batteries with Ultrahigh Reversible Stability

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Aluminum(Al)-ion batteries have emerged as a potential alternative to conventional ion batteries that rely on less abundant and costly materials like lithium.Nonetheless,given the nascent stage of advancement in Al-ion batteries(AIBs),attaining electrode materials that can leverage both intercalation capacity and structural stability remains challenging.Herein,we demonstrate a C3N4-derived layered N,S heteroatom-doped carbon,obtained at different pyrolysis temperatures,as a cathode material for AIBs,encompassing the diffusion-controlled intercalation and surface-induced capacity with ultrahigh reversibility.The developed layered N,S-doped corbon(N,S-C)cathode,synthesized at 900 ℃,delivers a specific capacity of 330 mAhg-1 with a relatively high coulombic efficiency of～85％after 500 cycles under a current density of 0.5 A g-1.Owing to its reinforced adsorption capability and enlarged interlayer spacing by doping N and S heteroatoms,the N,S-C900 cathode demonstrates outstanding energy storage capacity with excellent rate performance(61 mAhg-1 at 20 A g-1)and ultrahigh reversibility(90 mAhg-1 at 5Ag-1 after 10000cycles).

2D carbonadsorption energyheteroatoms-dopinghigh capacitylong cycling life

Jiahui Li、Jehad K.El-Demellawi、Guan Sheng、Jonas Bj?rk、Fanshuai Zeng、Jie Zhou、Xiaxia Liao、Junwei Wu、Johanna Rosen、Xingjun Liu、Husam N.Alshareef、Shaobo Tu

展开 >

School of Physics and Materials Science,Nanchang University,999 Xuefu Road,Honggutan District,Nanchang 330031,China

School of Materials Science and Engineering,and Institute of Materials Genome and Big Data,Harbin Institute of Technology,Shenzhen 518055,China

KAUST Upstream Research Center(KURC),EXPEC-ARC,Saudi Aramco,Thuwal 23955,Saudi Arabia

Materials Design Division,Department of Physics,Chemistry and Biology(IFM),Linköping University,SE-581 83,Linköping,Sweden

Physical Science and Engineering(PSE)Division,King Abdullah University of Science and Technology,Thuwal 23955,Saudi Arabia

展开 >

National Natural Science Foundation of ChinaSSF Synergy ProgramNational Academic Infrastructure for Supercomputing in Sweden(NAISS)funded by the Swedish Research Council through

52203092EM16-00042022-06725

2024

10.1002/eem2.12733

能源与环境材料(英文)

能源与环境材料(英文)

ISSN：
年,卷(期)：2024.7(5)