Effect of Electrolyte Concentration and Depth of Discharge for Zinc-Air Fuel Cell

Guanghua Li; Ke Zhang; Mohammed Adnan Mezaal; Rui Zhang; Lixu Lei

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Effect of Electrolyte Concentration and Depth of Discharge for Zinc-Air Fuel Cell

机译：锌空气燃料电池的电解液浓度和放电深度的影响

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To understand the origins of performance variations in zinc-air fuel cell (ZAFC), the experimentalstudy on the effects of the ZAFC for electrolyte concentration and depth of discharge was carried outby voltammetric, discharge profile and EIS methods. The highest cell performance was achieved at 7 M KOH, which resulted in a maximum current density of 102.0 mA cm at 1.0 V vs. Zn. Moreover, Rdecreased in high-frequency when the discharge time increased, it is related to total ohmic resistance inthe ZAFC. The degradation of ZAFC increases with increasing discharge time. The observed trend isfavorable for confirming the time of replacing the zinc plate and (or) the electrolyte in ZAFC.

机译：为了了解锌空气燃料电池（ZAFC）性能变化的根源，通过伏安法，放电曲线和EIS方法进行了ZAFC对电解质浓度和放电深度影响的实验研究。最高电池性能在7 M KOH下实现，在1.0 V vs. Zn的条件下，最大电流密度为102.0 mA cm。此外，当放电时间增加时，R在高频下减小，这与ZAFC中的总欧姆电阻有关。 ZAFC的降解随着放电时间的增加而增加。观察到的趋势有利于确认更换ZAFC中的锌板和（或）电解质的时间。

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《International Journal of Electrochemical Science》 |2015年第8期|共12页
作者
Guanghua Li; Ke Zhang; Mohammed Adnan Mezaal; Rui Zhang; Lixu Lei;
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Effect of Electrolyte Concentration and Depth of Discharge for Zinc-Air Fuel Cell

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