Wood‐Derived Continuously Oriented Three‐Phase Interfacial Channels for High‐Performance Quasi‐Solid‐State Alkaline Zinc Batteries

• DOI: 10.1002/adma.202300132
• Publication Date: 2023-03-25T19:36:46Z
• Authors: Lanze Li; Qinghe Cao; Yitian Wu; Yu Zheng; Hongxuan Tang; Jiujiu Ge; Mengdi Liang; Bao Zhou; Baiyu Jiang; Sai Wu; Fan Wang; Yajun Pang; Zhehong Shen; Cao Guan; Hao Chen
• Keywords: Alkaline battery; Quasi-solid

Although recently developed hybrid zinc (Zn) batteries integrate the benefits of both alkaline Zn and Zn-air batteries, kinetics electrocatalytic oxygen reaction mass transfer electrolyte, which are limited by mismatched disordered multiphase reaction's interfacial channels, considerably inhibit performance batteries. In this work, novel, continuously oriented three-phase channels at cathode derived from natural structure pine wood to address these challenges. A chip is carbonized asymmetrically loaded with a hydrophilic active material achieve creation wood-derived that integrates material, current collector, allows dynamics be accelerated. Consequently, assembled quasi-solid-state battery performs an extra charge-discharge process beyond performed typical nickel (Ni)-Zn battery, resulting in wide operating voltage range 0.6-2.0 V superior specific capacity 656.5 mAh g-1 , addition excellent energy density (644.7 Wh kg-1 ) good durability. The ≈370% improvement relative Ni-Zn alone makes one best-performing