Synthesis and electrochemical performance of Ag-doped VO<sub>2</sub>(B) as cathode materials

HAN Shichang; ZOU Zhengguang; LÜ Tingting; WU Xingyu; YANG Qian

doi:10.11949/j.issn.0438-1157.20170812

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Synthesis and electrochemical performance of Ag-doped VO₂(B) as cathode materials

更新时间：2025-12-10

- Synthesis and electrochemical performance of Ag-doped VO₂(B) as cathode materials
- CIESC Journal Issue 4, Pages: 1741-1748(2018)
- 作者机构：
  
  桂林理工大学材料科学与工程学院, 有色金属及材料加工新技术教育部重点实验室,广西,桂林,541004
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170812
  CLC： Q028.8
- Online First：05 April 2018，
  
  Published：05 April 2018
- 稿件说明：
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HAN Shichang, ZOU Zhengguang, LÜ Tingting, et al. Synthesis and electrochemical performance of Ag-doped VO₂(B) as cathode materials[J]. CIESC Journal, 2018, (4): 1741-1748. DOI: 10.11949/j.issn.0438-1157.20170812.
DOI：

HAN Shichang, ZOU Zhengguang, LÜ Tingting, et al. Synthesis and electrochemical performance of Ag-doped VO₂(B) as cathode materials[J]. CIESC Journal, 2018, (4): 1741-1748. DOI: 10.11949/j.issn.0438-1157.20170812. DOI：

摘要

以V2O5、C12H22O11和AgNO3为原料，采用水热法制备Ag掺杂VO2（B）正极材料，通过XRD、FESEM、XPS、EDS、循环伏安（CV）、交流阻抗（EIS）等表征手段，研究掺Ag对VO2（B）的结构、形貌及电化学性能的变化规律。结果表明，当掺杂量为0.43%（atom）时，样品（Ag1）首次放电比容量为340.5 mA·h·g-1，较未掺杂样品（Ag0）提高了80.5%。当掺杂量为1.28%（atom）时，样品（Ag3）表现出最好的循环稳定性，首次放电容量为213.6 mA·h·g-1，100次循环后，容量保持率为58.3%。

Abstract

Ag-doped VO2(B) cathode material was fabricated by hydrothermal reaction. Vanadium pentoxide (V2O5)

maltose (C12H22O11) and silver nitrate (AgNO3) were used as starting materials. The physical properties of samples were characterized by X-ray diffraction

XPS

FESEM and EDS. Meanwhile

the electrochemical performance of material were observed with means of galvanostatic charge-discharge

cyclic voltammetry(CV) and electrochemical impedance spectroscopy (EIS). The results showed that the specific discharge capacity of the sample of Ag1[0.43%(atom)] was 340.5 mA·h·g-1 at 0.1C rate over the voltage range of 1.5-4.0 V

which was increased by 80.5% than the pure sample. The sample of Ag3[1.28%(atom)] exhibited the optimal electrochemical performance. The initial discharge capacity maintained 213.6 mA·h·g-1 after 100 cycles. The retention rate of capacity was 58.3%.

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Synthesis and electrochemical performance of Ag-doped VO2(B) as cathode materials

DOI：10.11949/j.issn.0438-1157.20170812

摘要

Abstract

关键词

Keywords

references

Synthesis and electrochemical performance of Ag-doped VO₂(B) as cathode materials