A novel flowrate control method for single flow zinc/nickel battery

2016 International Conference for Students on Applied Engineering (ICSAE) Pub Date : 2016-10-01 DOI:10.1109/ICSAE.2016.7810156

X. Li, C. Wong, Z. Yang

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引用次数: 6

Abstract

Recently, the redox zinc-nickel flow battery system with single flow channel was proposed and gained significant attentions. However, the dendrite zinc precipitate on periodic cycling is exceedingly deteriorating the battery life. Besides, the deficient system efficiency is broadly reckoned as the bottleneck of the commercialization for the flow battery system. To address the issues, a small laboratory flow assisted platform was established to test the performance and system electrolyte efficiency. A novel flowrate control method was presented to improve the system efficiency. It is demonstrated that the proposed flowrate control method can intelligently adjust the electrolyte velocities with applied currents and significantly improve the system efficiency without any compromise in the life cycles. The test also shows that even in extended 200 cycling tests, the battery system can maintain a relatively high coulomb efficiency over 95%. In addition, the proposed flowrate control method minimizes the side reaction efficiently. The work of this paper filled up the current gap of the research pertaining to the effects of different flowrates on the Zn/Ni battery system.

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一种新的单流锌镍电池流量控制方法

近年来，单流道氧化还原锌镍液流电池系统的提出引起了人们的广泛关注。然而，在周期性循环中，枝晶锌的析出极大地降低了电池的使用寿命。此外，系统效率不足被广泛认为是液流电池系统商业化的瓶颈。为了解决这些问题，建立了一个小型实验室流辅助平台来测试性能和系统电解质效率。为了提高系统效率，提出了一种新的流量控制方法。实验表明，所提出的流量控制方法可以在不影响系统寿命的前提下，根据外加电流智能调节电解液的流速，显著提高系统效率。试验还表明，即使在延长的200次循环试验中，电池系统仍能保持95%以上的较高库仑效率。此外，所提出的流量控制方法有效地减少了副反应。本文的工作填补了目前有关不同流量对锌/镍电池体系影响研究的空白。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 International Conference for Students on Applied Engineering (ICSAE)

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