欢迎登录材料期刊网

材料期刊网

高级检索

研究了快淬工艺对无钴AB5型LaxMm1-x(NiMnSiAlFe)4.9(x=0,0.45,0.75,1.0)合金微观结构及电化学循环稳定性的影响.结果表明:快淬处理显著改善合金的成分均匀性,使晶粒细化,并显著提高合金的循环稳定性.当淬速从0m/s增加到28 m/s时,经300次充放循环后,x=0.45合金的容量衰减率D从0.28 mAh/g·c-1(c代表一次循环)下降到0.13mAh/g·c-1;x=1.0合金的容量衰减率D从0.3mAh/g·c-1下降到0.14mAh/g·c-1.

参考文献

[1] Uehara I et al.[J].Journal of Alloys and Compounds,1997,253-254:635.
[2] Wang Q D et al.[J].Journal of Alloys and Compounds,1997,253-254:629.
[3] Ping Li;Xin-Lin Wang;Yang-Huan Zhang .Research of low-Co AB_5 type rare-earth-based hydrogen storage alloy electrodes[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(1/2):310-314.
[4] Ping Li et al.[J].Journal of Power Sources,2003,124:285.
[5] Cocciantelli J M et al.[J].Journal of Alloys and Compounds,1997,253-254:642.
[6] WeKang Hu et al.[J].Journal of Alloys and Compounds,1998,269:254.
[7] WeiKang Hu et al.[J].Journal of Alloys and Compounds,1998,268:261.
[8] WeiKang Hu .[J].Journal of Alloys and Compounds,1999,289:299.
[9] Lijun Jiang et al.[J].Journal of Alloys and Compounds,1995,231:635.
[10] Daniel Chartouni et al.[J].Journal of Alloys and Compounds,1996,241:160.
[11] Tetsuo Sakai et al.[J].Journal of the Less-Common Metals,1990,161:193.
[12] 张羊换,陈梅艳,王新林,王国清,祁焱,郭世海.硼对低钴AB5型贮氢合金循环寿命的影响[J].稀有金属材料与工程,2005(02):212-216.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%