• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Chen, Chen (Chen, Chen.) [1] | Hong, Yingbin (Hong, Yingbin.) [2] | Liang, Baolong (Liang, Baolong.) [3] | Huang, Yiyin (Huang, Yiyin.) [4] | Wei, Mingdeng (Wei, Mingdeng.) [5] (Scholars:魏明灯) | Yao, Hu-Rong (Yao, Hu-Rong.) [6] | Zheng, Lituo (Zheng, Lituo.) [7] | Hong, Zhensheng (Hong, Zhensheng.) [8]

Indexed by:

EI Scopus SCIE

Abstract:

NaCrO2 is a promising O3-type cathode material in sodium-ion batteries. However, it suffers from rapid capacity fading due to the unstable structure upon cycling. This work shows that in situ carbon coating during the synthesis process has multiple synergistic effects and can effectively stabilize the material structure and improve the cyclability. It is found that sodium vacancy and carbon coating in NaCrO2 synchronously occur, which improve its sodium-ion transport kinetics, structural stability during cycling and the air stability. More importantly, the strategy is universal in that various sources of carbon display similar effect. As a result, the asphalt-derived carbon coated material has a high initial capacity of 129 mAh g(-1) at 0.1 C rate with an initial Coulombic efficiency up to 98.2 %. In addition, it shows an excellent rate capability and cycling performance with 81.1 % retention after 1000 cycles at 5 C in half cell. Moreover, a full cell has constructed by coupling with hard carbon anode, which shows a high discharge capacity of 121.9 mAh g(-1) with a high Coulomb efficiency of 94.7 %, excellent rate capability and good cycling stability. This work demonstrates a general modification method on NaCrO2 that has the potential for practical applications.

Keyword:

in-situ carbon coating NaCrO2 cathode sodium-ion battery sodium vacancy structure modification

Community:

  • [ 1 ] [Chen, Chen]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 2 ] [Hong, Yingbin]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 3 ] [Liang, Baolong]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 4 ] [Huang, Yiyin]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 5 ] [Yao, Hu-Rong]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 6 ] [Zheng, Lituo]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 7 ] [Hong, Zhensheng]Fujian Normal Univ, Coll Phys & Energy, Fujian Prov Key Lab Quantum Manipulat & New Energy, Fuzhou 350117, Fujian, Peoples R China
  • [ 8 ] [Wei, Mingdeng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Mat, Fuzhou 350116, Fujian, Peoples R China
  • [ 9 ] [Hong, Zhensheng]Fujian Normal Univ, Acad Carbon Neutral, Fuzhou 350117, Peoples R China

Reprint 's Address:

Show more details

Related Keywords:

Source :

BATTERIES & SUPERCAPS

ISSN: 2566-6223

Year: 2023

Issue: 2

Volume: 7

5 . 1

JCR@2023

5 . 1 0 0

JCR@2023

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

Online/Total:140/10019034
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1