Electrode characteristics of nanocrystalline AB{sub 5} compounds prepared by mechanical alloying

Journal Article · Thu Oct 01 00:00:00 EDT 1998 · Materials Research Bulletin

DOI:https://doi.org/10.1016/S0025-5408(98)00134-2· OSTI ID:655379

Chen, Z; Chen, Z; Zhou, D; Huang, P ^[1]; Su, Y ^[2]; Lue, M ^[3]

---

1. Central South Univ. of Technology, Changsha (China). Inst. of Non-Equilibrium Materials Science and Engineering
2. Hunan Univ., Changsha (China). Materials Test and Research Centre
3. Chinese Academy of Science, Shenyang (China). State Key Lab. of RSA

Nanocrystalline LaNi{sub 5} and LaNi{sub 4.5}Si{sub 0.5} synthesized by mechanical alloying were used as negative materials for Ni-MH batteries. It was found that the electrodes prepared with the nanocrystalline powders had similar discharge capacities, better activation behaviors, and longer cycle lifetimes, compared with the negative electrode prepared with polycrystalline coarse-grained LaNi{sub 5} alloy. The properties of the electrodes prepared with these nanocrystalline materials were attributed to the structural characteristics of the compounds caused by mechanical alloying.

• OSTI ID: 655379
• Journal Information: Materials Research Bulletin, Vol. 33, Issue 10; Other Information: PBD: Oct 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
ELECTROCHEMISTRY
MILLING
LANTHANUM ALLOYS
NICKEL ALLOYS
SILICON ADDITIONS
ELECTRIC BATTERIES
ELECTRODES
ELECTRIC DISCHARGES
SERVICE LIFE