锻压技术

锻造温度对新能源汽车电池镁基贮氢合金性能的影响

英文标题：Influence of forging temperature on performance of magnesium-based hydrogen storage alloys for new energy vehicle battery

作者：张慧丽1 2 周正南3

单位：（1.河南省电厂节能环保工程技术研究中心河南郑州 450000 2.郑州电力高等专科学校科研处河南郑州 450000 3.重庆大学机械工程学院重庆 400044）

关键词：镁基贮氢合金充放电循环稳定性能始锻温度终锻温度耐腐蚀性能

分类号：TH164

出版年,卷(期):页码：2024,49(2):31-36

摘要：

为了研究锻造温度对Mg0.9V0.1Ni镁基贮氢合金充放电循环稳定性和耐腐蚀性能的影响，采用不同的始锻温度和终锻温度对机械球磨-压片-烧结三步法制备的Mg0.9V0.1Ni镁基贮氢合金试样进行锻造试验，并对合金试样的充放电循环稳定性和室温耐腐蚀性能进行了测试和对比分析。结果表明：锻造可以明显降低Mg0.9V0.1Ni镁基贮氢合金的放电容量衰减率，促使贮氢合金腐蚀电位正移，明显改善贮氢合金的充放电循环稳定性和耐腐蚀性能；与未锻造的贮氢合金相比，在始锻温度为400 ℃、终锻温度为310 ℃下制备的Mg0.9V0.1Ni镁基贮氢合金，其放电容量衰减率降低了35.68%、腐蚀电位正移了114 mV，综合性能最优。

In order to investigate the influence of forging temperature on the charge-discharge cycle stability and corrosion resistance of Mg0.9V0.1Ni magnesium-based hydrogen storage alloy, the Mg0.9V0.1Ni magnesium-based hydrogen storage alloy specimens prepared by the three-step method of mechanical ball milling, tableting and sintering were forged under different initial and final forging temperatures, and the charge-discharge cycle stability and corrosion resistance at room temperature of alloy specimens were tested and comparatively analyzed. The results, show that forging can significantly reduce the decay rate of discharge capacity for Mg0.9V0.1Ni magnesium-based hydrogen storage alloys,promote the positive shift of corrosion potential for hydrogen storage alloys, and significantly improve the charge-discharge cycle stability and corrosion resistance of hydrogen storage alloys. Compared with the unforged hydrogen storage alloy, the discharge capacity decay rate of Mg0.9V0.1Ni magnesium-based hydrogen storage alloy prepared at the initial forging temperature of 400 ℃ and the final forging temperature of 310 ℃ decreases by 35.68%, and the positive shift of corrosion potential is 114 mV, and the overall performance is optimal.

基金项目：

郑州电力高等专科学校2023年度科研项目(ZEPCKY-2023-02)；2024年度河南省科技攻关项目;河南省高等学校重点科研项目(22B480005)

张慧丽（1978-），女，硕士，副教授

参考文献：

［1］Pan S X, Zhang J, Zhou X J, et al. Investigation on hydrogen storage properties of ascast, extruded and swaged MgY-Zn alloys
［J］. International Journal of Hydrogen Energy, 2022,47(81): 34545-34554.

［2］Yu Y C,Ji Y Q, Zhang S H, et al. Microstructure characteristics, hydrogen storage thermodynamic and kinetic properties of MgNiY based hydrogen storage alloys
［J］. International Journal of Hydrogen Energy, 2022, 47(63): 27059-27070.

［3］李谦,孙璇,罗群,等. 镁基材料中储氢相及其界面与储氢性能的调控
［J］. 金属学报,2023,59(3):349-370.

Li Q, Sun X, Luo Q, et al. Regulation of hydrogen storage phase and its interface in magnesiumbased materials for hydrogen storage performance
［J］. Acta Metallurgica Sinica,2023,59(3):349-370.

［4］李英杰,姚继伟,雍辉,等. 稀土掺杂对稀土-镁基合金储氢性能的影响
［J］. 材料导报,2022,36(20):183-190.

Li Y J, Yao J W, Yong H, et al. Effect of rare earth doping on hydrogen storage properties of ReMg based hydrogen storage alloys
［J］. Materials Reports,2022,36(20):183-190.

［5］鲁航,王文凤,陶旭杰,等. AB4相对A5B19型稀土镁镍系合金储氢性能的影响研究
［J］. 稀土,2023,44(1):157-164.

Lu H, Wang W F, Tao X J, et al. Effect of AB4 phase on hydrogen storage properties of A5B19-type ReMgNibased alloy
［J］. Chinese Rare Earths,2023,44(1):157-164.

［6］郭衍科,罗文博,王昕阳,等. 镁基贮氢合金动力学行为改性研究进展
［J］. 热力发电,2022,51(11):11-24.

Guo Y K, Luo W B, Wang X Y, et al. Research progress on dynamic behavior modification of magnesium based hydrogen storage alloys
［J］. Thermal Power Generation,2022,51(11):11-24.

［7］董卓超,吴星亮,徐飞扬,等. 改性氢化镁基储氢材料的点火和爆炸特性
［J］. 含能材料,2021,29(10):977-984.

Dong Z C, Wu X L, Xu F Y, et al. Ignition and explosion characteristics of modified magnesium hydride based hydrogen storage materials
［J］. Chinese Journal of Energetic Materials,2021,29(10):977-984.

［8］朱晓梅,罗统钊,蒋志军,等. 镁基储氢合金 La0.47-xSm0.53MgxNi3.35Al0.15 的制备和退火工艺研究
［J］. 稀土,2022,43(4):121-128.

Zhu X M, Luo T Z, Jiang Z J, et al. Preparation and annealing technology of magnesiumbased hydrogen storage alloy La0.47-xSm0.53MgxNi3.35Al0.15
［J］. Chinese Rare Earths,2022,43(4):121-128.

［9］张秋雨,任莉,李映辉,等. 镁基固态储氢材料研究进展
［J］. 科技导报,2022,40(23):6-23.

Zhang Q Y, Ren L, Li Y H, et al. Research progress in magnesium based solid hydrogen storage materials
［J］. Technology Review,2022,40(23):6-23.

［10］胡建江,姬晓隆,刘明硕,等. 镁基储氢材料改性研究进展
［J］. 中国材料进展,2023,42(2):89-97.

Hu J J, Ji X L, Liu M S, et al. Research progress in modification of magnesium based hydrogen storage materials
［J］. Progress in Materials in China,2023,42(2):89-97.

［11］范志丹,王鹏程. 复合镍对汽车用镁镍系合金电化学储氢行为的影响
［J］. 实验室研究与探索,2021,40(3):62-66.

Fan Z D, Wang P C. Effect of composite nickel on electrochemical hydrogen storage behavior of magnesium nickel series alloys for automotive applications
［J］. Laboratory Research and Exploration,2021,40(3):62-66.

［12］张振奋,宋力骞,钱华,等. 一种镁基贮氢合金长储性能退化规律研究
［J］. 火工品,2021(2):1-4.

Zhang Z F, Song L Q, Qian H, et al. Study on the degradation law of longterm storage performance of a magnesium based hydrogen storage alloy
［J］. Initiating Explosive Device,2021(2):1-4.

［13］朱敏,欧阳柳章. 镁基贮氢合金动力学调控及电化学性能
［J］. 金属学报,2021,57(11):1416-1428.

Zhu M, Ouyang L Z. Kinetic regulation and electrochemical properties of magnesium based hydrogen storage alloys
［J］. Acta Metallurgica Sinica,2021,57(11):1416-1428.

［14］申炳泽,樊建锋,郭卉君. 含镁高熵合金MgxTiVNiAlCr储氢性能的研究
［J］. 铸造技术,2021,42(7):565-569.

Shen B Z, Fan J F, Guo H J. Study of the hydrogen storage properties of magnesiumcontaining MgxTiVNiAlCr high entropy alloy
［J］. Foundry Technology,2021,42(7):565-569.

［15］王继晨,刘飞,鲍益东,等. 基于无网格法的镁合金等温锻造成形模拟分析
［J］. 锻压技术,2023,48(2):10-15.

Wang J C,Liu F,Bao Y D,et al.Simulation and analysis on isothermal forging for magnesium alloy based on meshless method
［J］.Forging & Stamping Technology,2023,48(2):10-15.

服务与反馈：

【文章下载】【加入收藏】