Fabrication of flexible reconfigurable battery based on liquid metal

作者：Bohao Jin, Zi Ye, Zerong Xing, Nan Li, Minghui Guo, Xueqing Chen, Yuqing Li, Jun Feng Su, Chenyunfei Qiu, Zhenming Li, Wei Liu, Mingyang Liu, Jing Liu, Lin Gui · 发表于：International Journal of Extreme Manufacturing · 年份：2025 · DOI：10.1088/2631-7990/adeccd · 被引用次数：8 · 研究领域：Modular Robots and Swarm Intelligence、Advanced Materials and Mechanics

Abstract In this work, a flexible battery structure is fabricated using soft lithography and three-dimensional (3D) printing technology. Ga 52.5 Sn 39.5 Zn 8 anode material, Bi 67 In 33 cathode material, and alkaline hydrogel electrolyte are introduced to form the flexible battery. A variety of circuit structures are fabricated to realize the series-parallel integration of different numbers of single cells and achieve the fabrication of batteries with different voltages and powers, with a maximum open-circuit voltage (OCV) of 4.6 V and a maximum output power of 1.193 mW. A reconfigurable soft battery group is proposed, and the regulation of the battery voltage has been realized through the microfluidic perfusion process without the need for an external variable-voltage circuit. We have also fabricated an EGaIn-NaOH microfluidic switch to achieve the control of the light emitting diode (LED). In addition, a wristband with a flexible battery is demonstrated to realize power supply to a liquid crystal display (LCD) with a clock or a temperature sensor.