Versatile nicotinamide enabling dendrite-free and efficient deposition for aqueous Zn-I2 batteries

Hejing Wang; Yitian Su; Lijing Yan; Xiaomin Zeng; Xiaoran Chen; Baorui Xiang; Huixin Ren; Tingli Ma; Min Ling

doi:10.1039/d3cc03420h

Versatile nicotinamide enabling dendrite-free and efficient deposition for aqueous Zn-I₂ batteries

Chem Commun (Camb). 2023 Oct 4;59(79):11847-11850. doi: 10.1039/d3cc03420h.

Authors

Hejing Wang¹, Yitian Su¹, Lijing Yan¹, Xiaomin Zeng², Xiaoran Chen¹, Baorui Xiang³, Huixin Ren⁴, Tingli Ma¹, Min Ling²

Affiliations

¹ College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, China. yanlijing@cjlu.edu.cn.
² College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China. 11828027@zju.edu.cn.
³ Department of Chemistry, Rice University, Houston, Texas 77005, USA.
⁴ School of Chemical and Materials Engineering, Huizhou University, Huizhou, 516007, China.

PMID: 37718631
DOI: 10.1039/d3cc03420h

Abstract

This study introduces a versatile electrolyte additive, nicotinamide, for zinc anodes, aiming to facilitate uniform deposition and suppress water-induced side reactions. The molecular structure, consisting of a pyridine ring and an amide function group, endows NTA molecules with the ability to regulate electrolyte pH, enhance nucleation overpotential, and constrain 2D diffusion of Zn²⁺. As a result, the full battery configuration with this additive achieved an impressive lifespan of over 10 000 cycles.