A high power density paper-based zinc–air battery with a hollow channel structure. Issue 10 (11th January 2021)

• Record Type: Journal Article
• Authors: Zhang, Haoran; Zhang, Biao; Yang, Yang; Ye, Dingding; Chen, Rong; Liao, Qiang; Zhu, Xun
• Is Part Of: Chemical communications. Volume 57:Issue 10(2021)
• Page Start: 1258
• Page End: 1261
• Publication Date: 2021-01-11
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc07687b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A hollow-channel structure was shown to significantly improve the power-generation properties of a paper-based zinc–air battery via boosting the electrochemically active surface area of the cathode. Abstract : In light of the surging research interest in disposable electronics, great demands have been imposed on compact power sources. Herein, a paper-based zinc–air battery that takes advantage of a hollow channel structure is reported. Unlike conventional paper-based metal–air batteries and fuel cells that tightly immobilize the electrode on the paper channel, a hollow channel layer containing potassium hydroxide solution electrolyte is sandwiched between the electrodes and paper channel layer. This novel zinc–air battery is capable of delivering a peak power density of 102 mW cm −2, surpassing state-of-the-art paper-based power sources. The superior power density originates from the boosted electrochemically active surface area of the cathode, which enhances the oxygen reduction reaction kinetics.