| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Improvement in Rechargeability of Zinc Electrode for Aqueous Secondary Batteries |
| Author(s) |
Takuya Okumura, Kenji Kawaguchi, Masatsugu Morimitsu |
| On-Site Speaker (Planned) |
Takuya Okumura |
| Abstract Scope |
A zinc electrode is the negative electrode of commercial zinc-MnO<sub>2</sub> primary batteries and is expected to use in zinc-air or zinc-nickel secondary batteries, while a poor rechargeability of the zinc electrode is the main reason why no zinc secondary batteries have been realized. The improvement in rechargeability needs to inhibit the dendritic growth of zinc deposits generated during charge and the non-uniform distribution of zinc and zinc oxide induced during charge-discharge cycles. This paper presents a novel method to suppress these phenomena and to improve the cycling performance of the zinc electrode even when the charge-discharge cycles are performed at high rates. The results indicate how the distribution of the active masses are kept to be uniform during charge and discharge obtained by electrochemical measurements and surface analyses of the zinc electrodes. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |