High Performance Printed AgO-Zn Rechargeable Battery for Flexible Electronics
Lu Yin, Jonathan Scharf, Jessica Ma, Jean‐Marie Doux, Christopher Redquest, Viet L. Le, Yijie Yin, Jeff Ortega, Xia Wei, Joseph Wang, Ying Shirley Meng
Abstract
The rise of flexible electronics calls for cost-effective and scalable\nbatteries with good mechanical and electrochemical performance. In this work,\nwe developed printable, polymer-based AgO-Zn batteries that feature\nflexibility, rechargeability, high areal capacity, and low impedance. Using\nelastomeric substrate and binders, the current collectors, electrodes, and\nseparators can be easily screen-printed layer-by-layer and vacuum-sealed in a\nstacked configuration. The batteries are customizable in sizes and capacities,\nwith the highest obtained areal capacity of 54 mAh/cm2 for primary\napplications. Advanced micro-CT and EIS were used to characterize the battery,\nwhose mechanical stability was tested with repeated twisting and bending. The\nbatteries were used to power a flexible E-ink display system that requires a\nhigh-current drain and exhibited superior performance than commercial coin-cell\nbatteries. The developed battery presents a practical solution for powering a\nwide range of electronics and holds major implications for the future\ndevelopment of practical and high-performance flexible batteries.