Unveiling the multifunctional regulation effect of a glutamine additive for highly reversible Zn metal anodes

被引：22

作者：

Yin, Junyi ^{[1
]}

Li, Mingyan ^{[1
,2
]}

Feng, Xiang ^{[1
]}

Cui, Tianyi ^{[3
]}

Chen, Jingzhe ^{[1
]}

Li, Fuxiang ^{[1
]}

Wang, Minghui ^{[1
]}

Cheng, Yonghong ^{[1
]}

Ding, Shujiang ^{[2
]}

Xu, Xin ^{[1
]}

Wang, Jianhua ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Engn Res Ctr Energy Storage Mat & Devices, Sch Chem, Minist Educ,Xian Key Lab Sustainable Energy Mat Ch, Xian 710049, Peoples R China

[3] China Power Complete Equipment Co Ltd, Beijing 100080, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2024年 / 12卷 / 03期

关键词：

Cumulative capacity - Electrolyte additives - Highly stables - Ion batteries - Metal anodes - Side reactions - Solvation structure - Steric effect - Zinc ions - Zn 2+;

D O I：

10.1039/d3ta06593f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Uncontrollable side reactions and dendrites severely undermine the stability and reversibility of Zn anodes and remain significant challenges for aqueous zinc-ion batteries (AZIBs). Herein, it is demonstrated that glutamine (Gln) is a multifunctional electrolyte additive to enable highly stable and reversible Zn anodes. Theoretical and experimental results reveal that Gln has three functions: preferentially absorbing on the Zn anode and constructing a water-poor interface, enhancing the steric effect, and optimizing the solvation structures of Zn2+. Consequently, Zn//Zn batteries exhibited an impressive cycling durability and high cumulative capacity at 3 mA cm-2. Furthermore, Zn//Cu batteries also demonstrated a remarkably reversible stripping/deposition process accompanied by a notably high average coulombic efficiency of 99.6%. In addition, the fabricated Zn//NH4V4O10 batteries with Gln also yielded impressive cycle performances and capacity retention. Gln exhibits promising attributes as a cost-effective and versatile electrolyte additive to facilitate the stability and reversibility of AZIBs. This work proposes glutamine (Gln) as a multifunctional electrolyte additive for highly stable and reversible Zn anodes in aqueous zinc-ion batteries.

引用

页码：1543 / 1550

页数：8