玻纤隔膜氨基化对水性锌离子电池性能的影响  

Effect of amination of glass fiber separator on the performance of aqueous zinc-ion batteries

作　　者：林建 灏陈兴菽 刘宝斌 张美慧 欧赛男 李燃[1] 张欣向[1] LIN Jian-hao;CHEN Xing-shu;LIU Bao-bin;ZHANG Mei-hui;OU Sai-nan;Li Ran;ZHANG Xin-xiang(College of Materials Engineering,Fujian Agriculture and Forestry University,Fuzhou 350108,China)

机构地区：[1]福建农林大学材料工程学院,福建福州350108

出　　处：《化学研究与应用》2025年第3期662-668,共7页Chemical Research and Application

基　　金：福建省自然科学基金(2021J01107)资助;国家级大学生创新创业训练项目(202410389029)资助。

摘　　要：水性锌离子电池(AZIBs)具有高安全性、成本低和能量密度高等优点,在下一代储能系统中的应用潜力巨大。但是,不受控的锌枝晶生长和析氢反应显著降低了AZIBs的循环性能。本文以氨乙基氨丙基三乙氧基硅烷(NAPTES)为改性剂,于常温常压条件下实现玻璃纤维(GF)隔膜的氨基化改性,以抑制锌枝晶的生长和析氢反应,提升AZIBs的循环性能。采用X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、X射线衍射(XRD)对改性前后GF隔膜和循环电极的化学结构和微观结构进行表征。研究结果表明,GF表面接枝的氨基能够有效地调控负极表面锌晶体的生长方向,表现为在(002)晶面优先生长,有利于电池的循环稳定。Zn/GF@NAPTES/Cu半电池在循环200圈后仍能够保持99.03%的库伦效率,表现出良好锌沉积/溶解可逆性。Zn/GF@NAPTES/α-MnO_(2)全电池在循环400圈后保持着99.38%的库伦效率和113.03 mAh·g^(-1)充放电比容量,表现出良好的循环特性。Aqueous zinc-ion batteries(AZIBs)are promising candidates for next-generation energy storage systems due to their high safety,low cost,and high energy density.However,uncontrolled zinc dendrite growth and hydrogen evolution reaction affect the cycle performance of AZIBs.Aminoethylaminopropyltriethoxysilane(NAPTES)was used as a modifier to modify the glass fiber(GF)separator at room temperature and atmospheric pressure to resist the growth of zinc dendrite and hydrogen evolution reaction,and hence to improve the cycle performance of AZIBs.The chemical structure and microstructure of GF separator before and after modification were characterized by X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM)and X-ray diffraction(XRD).The results show that ammonia groups grafted onto GF effectively regulate the growth orientation of Zn crystal on Zn anode,showing a preferential orientation in the(002)crystal plane,which is conducive to the cycle stability of the battery.In addition,Zn/GF@NAPTES/Cu half-cell can maintain 99.03%coulombic efficiency after 200 cycles,showing good zinc deposition/dissolution reversibility.Finally,the Zn/GF@NAPTES/α-MnO_(2) full cell maintains a coulombic efficiency of 99.38%and a charge-discharge specific capacity of 113.03 mAh·g^(-1)after 400 cycles,showing good cycling characteristics.

关 键 词：水性锌离子电池 氨基化 锌枝晶 玻璃纤维 

分 类 号：O614.2[理学—无机化学]