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author:

Lv, Jintao (Lv, Jintao.) [1] | Chong, Peidian (Chong, Peidian.) [2] | Huang, Shiqi (Huang, Shiqi.) [3] | Li, Yafeng (Li, Yafeng.) [4] (Scholars:李亚峰) | Wei, Mingdeng (Wei, Mingdeng.) [5] (Scholars:魏明灯)

Indexed by:

SCIE

Abstract:

TiO2 is considered as a potential anode with the advantages of stable structure and high safety. However, the large-scale application of TiO2 is restricted due to its low electronic conductivity and sluggish Na+ diffusion. In the present work, anatase and TiO2-B dual-phase TiO2 hollow microspheres (TiO2-MS) were designed through a universal hydrothermal reaction. These microspheres were composed of nanosheets, and the nanosheets were consisted of small nanoparticles. Benefitting from the synergistic effect of dual-phase TiO2 nanoparticles and hierarchical structure, the TiO2-MS can not only buffer the volume changes during Na+ intercalation/deintercalation process, but also provide the contact space for electrolyte - electrode. As a result, the TiO2-MS anode delivered a distinguished sodium storage performance, maintained 240 mA h g(-1) at 2C (1C = 168 mA g(-1)) after 150 cycles. Even the current density was increased to 20C, a capacity of 159.7 mA h g(-1) can still be maintained after 5000 cycles.

Keyword:

Dual-phase Electrochemical properties Hollow structure Sodium-ion batteries TiO2

Community:

  • [ 1 ] [Lv, Jintao]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Chong, Peidian]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Huang, Shiqi]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Li, Yafeng]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Wei, Mingdeng]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Wei, Mingdeng]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 李亚峰 魏明灯

    [Li, Yafeng]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China;;[Wei, Mingdeng]Fuzhou Univ, Fujian Key Prov Lab Electrochem Energy Storage Ma, Fuzhou 350002, Fujian, Peoples R China

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Source :

JOURNAL OF ELECTROANALYTICAL CHEMISTRY

ISSN: 1572-6657

Year: 2021

Volume: 899

4 . 5 9 8

JCR@2021

4 . 1 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:117

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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