Janus Grotthuss‐Vehicle Mechanism Enhances Fast OH− Transport for Ultralong Lifetime Flexible Zinc–Air Battery

Abstract

AbstractThe flexible zinc–air battery has garnered ever‐growing attentions in the current decade taking advantages of the high efficiency, environmentally friendliness, and safety features. However, the sluggish ion transport and poor mechanical property hinder its realistic and mass application. To address these challenges, this study proposes a Janus strategy which combines the Grotthuss and Vehicle mechanism for OH− transport in the gel by assembling the dual network gel with LDH (layer double hydroxides) in the gel's pores. The gel can sustain 530% strain and 0.19 MPa stress without significant plastic deformation and the as‐prepared battery exhibits the high ionic conductivity as 145.93 mS cm−1 and long lifetime over 160 h. The further simulation reveals that the Grotthuss mechanism plays the determine role in the ion transport, contributing to the fast OH− transport and highly efficient flexible zinc–air battery.