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Fast and Reversible Li Ion Insertion in Carbon‐Encapsulated Li3VO4 as Anode for Lithium‐Ion Battery

Carbon‐encapsulated LiVO is synthesized by a facile environmentally benign solid‐state method with organic metallic precursor VO(CHO) being chosen as both V and carbon sources yielding a core–shell nanostructure with lithium introduced in the subsequent annealing process. The LiVO encapsulated with... Full description

Journal Title: Advanced Functional Materials June 2015, Vol.25(23), pp.3497-3504
Main Author: Zhang, Changkun
Other Authors: Song, Huanqiao , Liu, Chaofeng , Liu, Yaguang , Zhang, Cuiping , Nan, Xihui , Cao, Guozhong
Format: Electronic Article Electronic Article
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ID: ISSN: 1616-301X ; E-ISSN: 1616-3028 ; DOI: 10.1002/adfm.201500644
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recordid: wj10.1002/adfm.201500644
title: Fast and Reversible Li Ion Insertion in Carbon‐Encapsulated Li3VO4 as Anode for Lithium‐Ion Battery
format: Article
creator:
  • Zhang, Changkun
  • Song, Huanqiao
  • Liu, Chaofeng
  • Liu, Yaguang
  • Zhang, Cuiping
  • Nan, Xihui
  • Cao, Guozhong
subjects:
  • Carbon‐Encapsulated Structure
  • Lithium‐Ion Batteries
  • Lithium Vanadium Oxide
ispartof: Advanced Functional Materials, June 2015, Vol.25(23), pp.3497-3504
description: Carbon‐encapsulated LiVO is synthesized by a facile environmentally benign solid‐state method with organic metallic precursor VO(CHO) being chosen as both V and carbon sources yielding a core–shell nanostructure with lithium introduced in the subsequent annealing process. The LiVO encapsulated with carbon presents exceeding rate capability (a reversible capability of 450, 340, 169, and 106 mAh g at 0.1 C, 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries. The superior performance is derived from the structural features of the carbon‐encapsulated LiVO composite with oxygen vacancies in LiVO, which increase surface energy and could possibly serve as a nucleation center, thus facilitating phase transitions. The in situ generated carbon shell not only facilitates electron transport, but also suppresses LiVO particle growth during the calcination process. The encouraging results demonstrate the significant potential of carbon encapsulated LiVO for high power batteries. In addition, the simple generic synthesis method is applicable to the fabrication of a variety of electrode materials for batteries and supercapacitors with unique core–shell structure with mesoporous carbon shell. fabricated by a novel one‐step solid‐state reaction without external carbon sources presents exceeding rate capability (a reversible capability of 340, 169, and 106 mAh g at 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries.
language:
source:
identifier: ISSN: 1616-301X ; E-ISSN: 1616-3028 ; DOI: 10.1002/adfm.201500644
fulltext: fulltext
issn:
  • 1616-301X
  • 1616301X
  • 1616-3028
  • 16163028
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titleFast and Reversible Li Ion Insertion in Carbon‐Encapsulated Li3VO4 as Anode for Lithium‐Ion Battery
creatorZhang, Changkun ; Song, Huanqiao ; Liu, Chaofeng ; Liu, Yaguang ; Zhang, Cuiping ; Nan, Xihui ; Cao, Guozhong
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subjectCarbon‐Encapsulated Structure ; Lithium‐Ion Batteries ; Lithium Vanadium Oxide
descriptionCarbon‐encapsulated LiVO is synthesized by a facile environmentally benign solid‐state method with organic metallic precursor VO(CHO) being chosen as both V and carbon sources yielding a core–shell nanostructure with lithium introduced in the subsequent annealing process. The LiVO encapsulated with carbon presents exceeding rate capability (a reversible capability of 450, 340, 169, and 106 mAh g at 0.1 C, 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries. The superior performance is derived from the structural features of the carbon‐encapsulated LiVO composite with oxygen vacancies in LiVO, which increase surface energy and could possibly serve as a nucleation center, thus facilitating phase transitions. The in situ generated carbon shell not only facilitates electron transport, but also suppresses LiVO particle growth during the calcination process. The encouraging results demonstrate the significant potential of carbon encapsulated LiVO for high power batteries. In addition, the simple generic synthesis method is applicable to the fabrication of a variety of electrode materials for batteries and supercapacitors with unique core–shell structure with mesoporous carbon shell. fabricated by a novel one‐step solid‐state reaction without external carbon sources presents exceeding rate capability (a reversible capability of 340, 169, and 106 mAh g at 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries.
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titleFast and Reversible Li Ion Insertion in Carbon‐Encapsulated Li3VO4 as Anode for Lithium‐Ion Battery
descriptionCarbon‐encapsulated LiVO is synthesized by a facile environmentally benign solid‐state method with organic metallic precursor VO(CHO) being chosen as both V and carbon sources yielding a core–shell nanostructure with lithium introduced in the subsequent annealing process. The LiVO encapsulated with carbon presents exceeding rate capability (a reversible capability of 450, 340, 169, and 106 mAh g at 0.1 C, 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries. The superior performance is derived from the structural features of the carbon‐encapsulated LiVO composite with oxygen vacancies in LiVO, which increase surface energy and could possibly serve as a nucleation center, thus facilitating phase transitions. The in situ generated carbon shell not only facilitates electron transport, but also suppresses LiVO particle growth during the calcination process. The encouraging results demonstrate the significant potential of carbon encapsulated LiVO for high power batteries. In addition, the simple generic synthesis method is applicable to the fabrication of a variety of electrode materials for batteries and supercapacitors with unique core–shell structure with mesoporous carbon shell. fabricated by a novel one‐step solid‐state reaction without external carbon sources presents exceeding rate capability (a reversible capability of 340, 169, and 106 mAh g at 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries.
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titleFast and Reversible Li Ion Insertion in Carbon‐Encapsulated Li3VO4 as Anode for Lithium‐Ion Battery
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abstractCarbon‐encapsulated LiVO is synthesized by a facile environmentally benign solid‐state method with organic metallic precursor VO(CHO) being chosen as both V and carbon sources yielding a core–shell nanostructure with lithium introduced in the subsequent annealing process. The LiVO encapsulated with carbon presents exceeding rate capability (a reversible capability of 450, 340, 169, and 106 mAh g at 0.1 C, 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries. The superior performance is derived from the structural features of the carbon‐encapsulated LiVO composite with oxygen vacancies in LiVO, which increase surface energy and could possibly serve as a nucleation center, thus facilitating phase transitions. The in situ generated carbon shell not only facilitates electron transport, but also suppresses LiVO particle growth during the calcination process. The encouraging results demonstrate the significant potential of carbon encapsulated LiVO for high power batteries. In addition, the simple generic synthesis method is applicable to the fabrication of a variety of electrode materials for batteries and supercapacitors with unique core–shell structure with mesoporous carbon shell. fabricated by a novel one‐step solid‐state reaction without external carbon sources presents exceeding rate capability (a reversible capability of 340, 169, and 106 mAh g at 10 C, 50 C, and 80 C, respectively) and long cyclic performance (80% capacity retention after 2000 cycles at 10 C) as an anode in lithium‐ion batteries.
doi10.1002/adfm.201500644
pages3497-3504
date2015-06