Effects of compaction pressure on the electrochemical properties of Mm0.3Ml0.7Ni3.55Co0.75Mn0.4Al0.3 metal hydride electrodes |
| |
Authors: | Xiao Tian Xiang-dong LiuFan Ma Yali NieJin Xu |
| |
Affiliation: | a School of Materials Science and Engineering, Inner Mongolia University of Technology, Huhhot 010051, PR China b School of Physics and Electronic Information, Inner Mongolia Normal University, Huhhot 010022, PR China c Zhanjiang Radio and TV University, Zhanjiang 524003, PR China |
| |
Abstract: | In this work, the negative electrodes of the nickel-metal hydride rechargeable batteries were prepared at different compaction pressures. The maximum discharge capacities and cycle stabilities of the electrodes were measured by means of electrochemical method. The crystal structures and surface morphologies of the alloys were intensively studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM) combined with energy-dispersive spectrometry (EDS), respectively. Based on these observations, the effects of compaction pressure on the electrochemical properties of the electrodes were systematically investigated. The results showed that the electrode prepared at a compaction pressure of 25 MPa exhibited the best discharge capacity and better cycle stability. |
| |
Keywords: | Hydrogen storage alloy Ni/MH battery Compaction pressure Electrochemical property |
本文献已被 ScienceDirect 等数据库收录! |
|