V-Ti-Ni-Al电池负极用钒基储氢合金的制备及性能研究

魏胜君; 刘利杰

doi:10.7513/j.issn.1004-7638.2020.01.010

V-Ti-Ni-Al电池负极用钒基储氢合金的制备及性能研究

doi: 10.7513/j.issn.1004-7638.2020.01.010

魏胜君¹,
刘利杰²

1. 中山职业技术学院机电工程学院, 广东中山 528400;
2. 重庆大学材料科学与工程学院, 重庆 400044

基金项目:

中山职业技术学院教科研项目(编号:JA16003)；国家社科基金教育学一般项目(BJA120081)

详细信息

作者简介:
魏胜君(1975-),男,汉族,安徽滁州人,本科,讲师,研究方向:汽车工程电池材料研究,E-mail:117513901@qq.com

中图分类号: TF841.3,TG139
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- 被引次数: 0
出版历程
- 收稿日期: 2019-07-26

Preparation and Properties of Vanadium-based Hydrogen Storage Alloy for V-Ti-Ni-Al Battery Negative Electrode

Wei Shengjun¹,
Liu Lijie²

1. College of Mechanical and Electrical Engineering, Zhongshan Vocational and Technical College, Zhongshan 528400, Guangdong, China;
2. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China

摘要

摘要: 以V₃TiNi_0.56Al_0.3电池负极用钒基储氢合金为试验对象,进行了不同球磨转速和烧结温度下吸放氢性能和电化学稳定性的测试、对比和分析。结果表明,随球磨转速的加快和烧结温度的升高,试样的最大吸氢量先增大后减小,放电容量衰减率先减小后增大,吸放氢性能和电化学稳定性能先提高后下降。与300 r/min球磨转速相比,600 r/min球磨转速时的最大吸氢量增大了26.53%,放电容量衰减率减小了50%;与1 000℃烧结温度相比,1 300℃烧结温度时的最大吸氢量增大了21.17%,放电容量衰减率减小了46.6%。V₃TiNi_0.56Al_0.3电池负极用钒基储氢合金的工艺参数优选为:球磨转速600 r/min、烧结温度1 300℃。
- 钒基储氢合金 /
- V₃TiNi_0.56Al_0.3 /
- 球磨转速 /
- 烧结温度 /
- 吸放氢性能 /
- 电化学稳定性
Abstract: The hydrogen absorption and desorption properties and electrochemical stability of vanadium-based hydrogen storage alloy for negative electrode of V₃TiNi_0.56Al_0.3 battery at different ball milling speeds and sintering temperatures were tested,compared and analyzed.The results show that with the increase of ball milling speed and sintering temperature,the maximum hydrogen uptake first increases and then decreases,while the discharge capacity decay rate first decreases and then increases,with the hydrogen uptake and desorption performance and electrochemical stability of the alloy increasing first and then decreasing.Compared with those of the alloy obtained at 300 rpm of ball milling speed,the maximum hydrogen absorption is increased by 26.53% and the discharge capacity attenuation is decreased by 50% for the alloy at 600 rpm of ball milling speed.The maximum hydrogen absorption is increased by 21.17% and the discharge capacity attenuation is decreased by 46.6% for the alloy obtained at 1 300 ℃ of sintering temperature,compared with the alloy at 1 000 ℃ of sintering temperature.The technological parameters of vanadium-based hydrogen storage alloy for negative electrode of V₃TiNi_0.56Al_0.3 battery are optimized at 600 r/min of ball milling speed and 1 300 ℃ of sintering temperature.
- vanadium-based hydrogen storage alloy /
- V₃TiNi_0.56Al_0.3 /
- ball milling speed /
- sintering temperature /
- hydrogen absorption and desorption property /
- electrochemical stability