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调整电极/电解质接口通过三功能无机寡合体电解质添加剂来实现高稳定性和高速率Zn阳极的调整

Yuanze Yu¹, Pengfei Zhang¹, Weiyu Wang²

¹State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.

|June 23, 2023

概括

五三酸盐 (KTPP) 通过在阳极上形成保护层来稳定水性离子电池,防止树突并改善实际应用的循环稳定性.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

水性离子电池 (AZIB) 面临着不稳定的阳极的挑战,包括树的生长和副作用.
电解质添加剂提供了一个有希望的策略,以稳定电极/电解质接口,因为它们的可访问性和低成本.

研究的目的:

引入五三酸盐 (KTPP) 作为一种新型三功能电解质添加剂,用于稳定AZIB中的阳极.
研究KTPP增强阳极性能和稳定性的机制.

主要方法:

在水性离子电池系统中使用KTPP作为电解质添加剂.
研究了阳极上形成固体电解质相间膜 (SEI) 的情况.
分析了KTPP与Zn²⁺离子的复合及其对离子溶解的影响.
检查了KTPP中的K⁺离子在阳极表面的屏蔽作用.

主要成果:

KTPP诱导了一种离子导电和机械强大的SEI薄膜,稳定了阳极.
KTPP有效地与Zn²⁺离子复合,修改了溶解结构.
在KTPP中的K+作为屏蔽膜,调节Zn2+离子流并抑制树突的生长.
Zn//Zn对称电池在高电流密度下表现出显著延长的循环稳定性和超高的累积能力.
一个四层Zn-MnO₂袋的全细胞展示了令人印象深刻的实际应用潜力.

结论:

KTPP是一种高效的三功能添加剂,用于稳定水性离子电池中的阳极.
KTPP的独特特性提高了AZIB的自行车稳定性,容量和整体性能.
肯德基电力发电厂显示出在推进高性能水性离子电池的实际应用方面有很大的潜力.

关键词:

在 Zn 阳极中,有 Zn 阳极.水性Zn离子电池的使用方法高利率的高利率是因为.三功能电解质添加剂三功能电解质添加剂

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