Bimetallic Antimony-Vanadium Oxide Nanoparticles Embedded in Graphene for Stable Lithium and Sodium Storage

被引：24

作者：

Hao, Yutong ^{[1
]}

Jiang, Ying ^{[1
]}

Zhao, Luzi ^{[1
]}

Ye, Zhengqing ^{[1
]}

Wang, Ziheng ^{[1
]}

Chu, Ditong ^{[1
]}

Wu, Feng ^{[1
,2
,3
]}

Li, Li ^{[1
,2
,3
]}

Xie, Man ^{[1
]}

Chen, Renjie ^{[1
,2
,3
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China

[2] Beijing Inst Technol, Inst Adv Technol, Jinan 250300, Peoples R China

[3] Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 18期

基金：

中国国家自然科学基金;

关键词：

graphene; SbVO4; synergistic effect; lithium-ion batteries; sodium-ion batteries; POTENTIAL ANODE MATERIAL; ION; PERFORMANCE; BATTERIES; COMPOSITE; TIO2; SB;

D O I：

10.1021/acsami.0c21676

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bimetallic oxides have received considerable attention as anodes for lithium/sodium-ion batteries (LIBs/SIBs) due to their high electrochemical activity and theoretical specific capacity. However, their cycling performance is limited by large volume variation, severe aggregation, and pulverization of bimetallic oxide nanoparticles during repeated metal ion insertion/extraction processes. Herein, bimetallic antimony-vanadium oxide nanoparticles embedded in graphene (SbVO4/G) composites are prepared by a one-step hydrothermal method. Bimetallic SbVO4 with abundant redox reaction sites can provide high specific capacity by a multi-electron reaction. A robust graphene substrate can not only alleviate volume expansion but also prevent aggregation and collapse of highly active bimetallic SbVO4. Due to the excellent synergy between the two building components, SbVO4/G hybrids exhibit excellent electrochemical activity, structural stability, and electrochemical performance. When employed as anodes for LIBs and SIBs, SbVO4/G composites display excellent cycling performance (1079.5 mAh g(-1) at 0.1 A g(-1) after 150 cycles for LIBs and 401.6 mAh g(-1) at 0.1 A g(-1) after 450 cycles for SIBs) and impressive rate capability. This work demonstrates that SbVO4/G composites are promising anodes for both LIBs and SIBs.

引用

页码：21127 / 21137

页数：11

共 52 条

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