首页|Ternary-phase layered cathodes toward ultra-stable and high-rate sodium ion storage

Ternary-phase layered cathodes toward ultra-stable and high-rate sodium ion storage

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
With the shortage of lithium resources,sodium-ion batteries(SIBs)are considered one of the most promising candidates for lithium-ion batteries.P2-type and O3-type layered oxides are one of the few cathodes that can access high energy density.However,they usually exhibit structural change,capacity decay,and slow Na ion kinetic.Herein,we present layered ternary-phase cathodes with P2,P3 and O3 phases by a lattice doping strategy,which is demonstrated by X-ray diffraction(XRD)refinement.Combining the characteristics of P2,P3 and O3 phases,the layered composites show performance improvement during long-term battery cycling.In particular,Na0.7Li0.1Co0.3-Fe0.3Mn0.3O2(NLCFM)delivers a reversible capacity of 120.1 mAh·g-1 at 0.1C(1.0C=175 mA.g-1)with a superior capacity retention of 72.5％after 1000 cycles at 10.0C.This work offers insights into the development of advanced cathode materials for SIBs.

Sodium-ion batteryCathode materialLayered oxidesLattice dopingMixed phase

Wen-Ji Yin、Pei-Dan Su、Qi Lu、Xiao-Qiong Li、Ji-Ming Peng、Teng-Fei Zhou、Ge-Meng Liang、Yu-Liang Cao、Hong-Qiang Wang、Qing-Yu Li、Si-Jiang Hu

展开 >

Guangxi Key Laboratory of Low Carbon Energy Materials,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,China

Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China

Department of Chemistry and Pharmaceutical Sciences,Guilin Normal College,Guilin 541199,China

College of Chemistry and Chemical Engineering,Huanggang Normal University,Huanggang 438000,China

School of Chemical Engineering and Advanced Materials,The University of Adelaide,Adelaide 5005,Australia

Engineering Research Center of Organosilicon Compounds and Materials of Ministry of Education,College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China

展开 >

Guangxi Natural Science FoundationNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Fund of Huanggang Normal University for Young ScholarsSpecial Fund for Guangxi Distinguished ExpertInnovation Project of Guangxi Graduate Education

2021GXNSFDA075012U20A20249221690042014019203JGY2022031

2024

10.1007/s12598-023-02523-6

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(4)
  • 59