Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Electrophoresis. 2019 Feb;40(3):469-472. doi: 10.1002/elps.201800181. Epub 2018 Jul 3.
In this paper, an alkaline nickel oxide hydroxide/zinc (NiOOH/Zn) battery featuring a cellulose matrix separator between electrodes is presented. The metallic electrodes and the paper separator are inserted in a layer-by-layer assembly that provides mechanical stability to the system resulting in a lightweight and easy-to-use device. The battery was optimized for the amount of NiOOH-ink used at the cathode (11.1 mg/cm ) and thickness of the paper membrane separating the electrodes (360 μm). The battery was able to function using a small volume (75 μL) of 1.5 M potassium hydroxide (KOH) producing a maximum voltage, current density, and power density of 1.35 ± 0.05 V, 10.62 ± 0.57 mA/cm², and 0.56 ± 0.01 mW/cm², respectively. The system displayed a maximum current of 23.9 mA and a maximum power of 1.26 mW. Moreover, four batteries connected in series were able to power a small flameless candle for approximately 22 min. This work has potential in fulfilling the demands for short-term and lightweight power supplies.
本文提出了一种在电极之间使用纤维素基质分离器的碱性镍氧化物氢氧化物/锌（NiOOH/Zn）电池。将金属电极和纸分离器插入到逐层组装中，为系统提供机械稳定性，从而制造出轻巧且易于使用的设备。该电池针对阴极使用的 NiOOH 油墨量（11.1mg/cm ）和分隔电极的纸膜厚度（360μm）进行了优化。该电池能够使用 75μL 小体积的 1.5M 氢氧化钾（KOH）运行，产生的最大电压、电流密度和功率密度分别为 1.35±0.05V、10.62±0.57mA/cm²和 0.56±0.01mW/cm²。该系统显示出 23.9mA 的最大电流和 1.26mW 的最大功率。此外，四个串联的电池能够为一个小型无焰蜡烛供电约 22 分钟。这项工作有可能满足短期和轻量级电源的需求。
