Exposing {010} Active Facets by Multiple-Layer Oriented Stacking Nanosheets for High-Performance Capacitive Sodium-Ion Oxide Cathode

Advanced Materials
Yao XiaoYu-Guo Guo

Abstract

As one of the most promising cathodes for rechargeable sodium-ion batteries (SIBs), O3-type layered transition metal oxides commonly suffer from inevitably complicated phase transitions and sluggish kinetics. Here, a Na[Li0.05 Ni0.3 Mn0.5 Cu0.1 Mg0.05 ]O2 cathode material with the exposed {010} active facets by multiple-layer oriented stacking nanosheets is presented. Owing to reasonable geometrical structure design and chemical substitution, the electrode delivers outstanding rate performance (71.8 mAh g-1 and 16.9 kW kg-1 at 50C), remarkable cycling stability (91.9% capacity retention after 600 cycles at 5C), and excellent compatibility with hard carbon anode. Based on the combined analyses of cyclic voltammograms, ex situ X-ray absorption spectroscopy, and operando X-ray diffraction, the reaction mechanisms behind the superior electrochemical performance are clearly articulated. Surprisingly, Ni2+ /Ni3+ and Cu2+ /Cu3+ redox couples are simultaneously involved in the charge compensation with a highly reversible O3-P3 phase transition during charge/discharge process and the Na+ storage is governed by a capacitive mechanism via quantitative kinetics analysis. This optimal bifunctional regulation strategy may offer new insights ...Continue Reading

References

Nov 21, 2013·Chemical Communications : Chem Comm·Haijun YuHaoshen Zhou
Nov 13, 2014·Chemical Reviews·Naoaki YabuuchiShinichi Komaba
Aug 15, 2015·Advanced Materials·Xingde XiangJun Chen
Jun 16, 2016·Advanced Materials·Ya YouJohn B Goodenough
Mar 30, 2017·Chemical Society Reviews·Jang-Yeon HwangYang-Kook Sun
Jun 10, 2017·Journal of the American Chemical Society·Hu-Rong YaoLi-Jun Wan

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Citations

Oct 2, 2020·Advanced Materials·Mengmeng QianLin Guo
Jul 26, 2019·Nature Chemistry·Mihui ParkYong-Mook Kang
Jul 10, 2019·ACS Applied Materials & Interfaces·Hang XuHaoshen Zhou
Dec 18, 2019·ACS Applied Materials & Interfaces·Xu GaoXiaobo Ji
Jul 31, 2019·ACS Applied Materials & Interfaces·Yuchong LaiZhi Yang
Mar 13, 2020·ACS Applied Materials & Interfaces·Yi ZhangYunhui Huang
Jun 12, 2019·ACS Applied Materials & Interfaces·Ya-Nan ZhouYu-Guo Guo
Jan 22, 2022·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Caihong ShiHuile Jin
Dec 29, 2021·Advanced Materials·Yangyang HuangYunhui Huang

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