Tagliaferri Stefano, Goli Nagaraju, Sokolikova Maria S, Bai Haoyu, Liang Caiwu, Stephens Ifan E L, Mattevi Cecilia
Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom.
ACS Appl Mater Interfaces. 2025 Jul 2;17(26):38215-38224. doi: 10.1021/acsami.5c05599. Epub 2025 Jun 23.
Aqueous zinc ion batteries (ZIBs) are attracting increasing attention due to their low cost, earth abundance, and safety. So far, they have been regarded as a promising battery system for large scale grid applications, while here, we demonstrate prospects of their use to power portable devices. We report the fabrication of a rechargeable ZIB with interdigitated geometry capable of powering a commercial sensor for days. A full battery was assembled using aqueous and scalable formulations with a printed anode based on zinc powder and carbon black, a printed colloidal electrolyte, and a printed MnO cathode. The anode withstands more than 500 h of galvanostatic plating/stripping with a low overpotential of ∼32.2 mV, and the ZIB displays a capacity of ∼1.3 mAh/cm (∼129 mAh/g) and retains ∼66% of its capacity after 100 cycles. Finally, we show how this battery can power a Bluetooth proximity sensor, providing a voltage of 3.2 V for more than 3 days of continuous operation.
水系锌离子电池（ZIBs）因其成本低、储量丰富且安全而受到越来越多的关注。到目前为止，它们被视为大规模电网应用中一种很有前景的电池系统，而在此我们展示了其用于为便携式设备供电的前景。我们报道了一种具有叉指式结构的可充电水系锌离子电池的制备，该电池能够为一个商用传感器供电数天。使用水性且可扩展的配方组装了一个全电池，其具有基于锌粉和炭黑的印刷阳极、印刷胶体电解质以及印刷MnO阴极。阳极在低过电位约32.2 mV的情况下经受了超过500小时的恒电流电镀/剥离，并且该水系锌离子电池的容量约为1.3 mAh/cm²（约129 mAh/g），在100次循环后保留了约66%的容量。最后，我们展示了这种电池如何为蓝牙近场传感器供电，在连续运行超过3天的时间里提供3.2 V的电压。
