文献类型：期刊文献

英文题名：Lignocellulose aggregation effect facilitates zinc anode crystal plane optimization for dendrite-free zinc deposition

作者：Zhou, Xinyi[1,2] Wang, Yonggui[1] Fu, Zongying[2] Lu, Yun[2]

第一作者：Zhou, Xinyi

通信作者：Wang, YG[1];Lu, Y[2]

机构：[1]Northeast Forestry Univ, Coll Mat Sci & Engn, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2025

卷号：517

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20252318562230);Scopus(收录号：2-s2.0-105007313289);WOS:【SCI-EXPANDED(收录号:WOS:001509146300017)】；

基金：Nation Key Research and Development Program of China (No. 2023YFC3903000); National Natural Science Foundation of China, Grant Number: 32371797.

语种：英文

外文关键词：Aqueous Zn-ion batteries; Lignocellulose; Aggregation effect; Solid electrolyte Interface; Crystallographic orientation

摘要：To address the inherent challenges of zinc metal anodes, framing an artificial solid electrolyte interface (SEI) layer on the zinc metal anode is a simple and effective strategy. This work innovatively introduces the aggregation effect of lignocellulose, utilizing the aggregated structures of cellulose, hemicellulose, and lignin to direct deposition on the (002) crystal plane of the anode interface, optimizing the diffusion and nucleation of zinc ions. This optimization significantly alleviates dendrite formation, thereby promoting the flattening of the zinc anode surface. Moreover, the lignocellulose-based SEI exhibits dual properties of hydrophilicity and zinc affinity. The zinc-affinitive groups can improve the solvation structure of electrolyte ions, suppress the hydrogen evolution reaction (HER), and enhance the reversibility of the zinc anode. The highly active carboxyl groups can react in situ with the zinc anode to form a stable, hydroxyl-rich protective layer. Experimental results further validate the effectiveness of the lignocellulose-based SEI, with symmetrical cells exhibiting stable cycling for over 2256 h at 2 mA cm- 2 and 1 mAh cm- 2. Notably, the Zn || V2O5 full-cell delivers a high specific capacity of 468.2 mAh g- 1 and maintains 125.9 % capacity retention after 5500 cycles at 5 A g- 1. The lignocellulose coating not only provides physical protection for the zinc anode interface but also fundamentally regulates its surface redox potential. Furthermore, this study, from an electrochemical perspective, is the first to confirm that hemicellulose shields the aggregation effect of cellulose and lignin, providing an experimental basis for future research on the aggregation effects of lignocellulose.