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Updated: Oct 13, 2026
Zinc-Sponge Battery Electrodes that Suppress Dendrites
Published on: September 29, 2020
Unlocking durable Zn-air batteries via bio-derived interfacial protection
Pengyu Shen1, Qile Zhao1, Fangyu Wang1
1Inner Mongolia Key Laboratory of Rare Earth Catalysis, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P.R. China. jfwu@imu.edu.cn.
Abstract:
Alkaline zinc-air batteries (ZABs) suffer from Zn anode corrosion and hydrogen evolution. Herein, white lablab bean extract is introduced as a sustainable electrolyte additive in 6 M KOH. The active components in the extract cooperatively adsorb on the Zn anode via O/N-Zn coordination, forming a protective layer. This cooperative adsorption achieves an inhibition efficiency of about 82%, boosting the specific capacity to 799.9 mAh g-1 and extending the cycle life to 900 h at 5 mA cm-2.
