A Solid-State Metal Hydride/Oxygen Cell using La0.78Ce0.22Ni3.73Mn0.30Al0.17Fe0.50Co0.30 in the Anodeand Nafion as Electrolyte
- DOI
- 10.2991/ame-16.2016.91How to use a DOI?
- Keywords
- Metal hydride/Oxygen cell,Solid electrolyte,Nafion,Electrochemical properties
- Abstract
A solid polymer electrolyte metal hydride (MH)/oxygen cell using La0.78Ce0.22Ni3.73Mn0.30Al0.17Fe0.50Co0.30in the anode and Nafion as electrolyte is described and investigated experimentally. In this work, the discharge performances of the cell are compared in two charging ways, namely, electrochemical and gas-solid hydrogenation. The specific discharge capacityby gas-solid hydrogenation method is about 59.3mAh•g–1, while almost few specific discharge capacityis obtained by electrochemical method in this work. The cell is characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses. And the ex-situ XRD results of the cell charged by gas-solid hydrogenation method show that an electrochemical reaction between hydrogen and oxygen does happen,andlittleobservable side reaction occurs. Moreover, the stability of the MH electrode depending on various relative humidity is investigated. The results indicate that solid-state MH/O2 cell using Nafion as electrolyte is technically feasible, while the control of the water content during charge/discharge processesand the catalyst loadingmust be the key points. More than that, further researchesare still required to enhance both charge/discharge capacity and reversibility.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yu-Bin Zhang AU - Chao-Ling Wu AU - Yun-Gui Chen AU - Li-Wu Huang AU - Ding Zhu AU - Xu Dai AU - Wan-Hai Zhou PY - 2016/06 DA - 2016/06 TI - A Solid-State Metal Hydride/Oxygen Cell using La0.78Ce0.22Ni3.73Mn0.30Al0.17Fe0.50Co0.30 in the Anodeand Nafion as Electrolyte BT - Proceedings of the 2nd Annual International Conference on Advanced Material Engineering (AME 2016) PB - Atlantis Press SP - 550 EP - 558 SN - 2352-5401 UR - https://doi.org/10.2991/ame-16.2016.91 DO - 10.2991/ame-16.2016.91 ID - Zhang2016/06 ER -