Year: 2026
Type: article
Abstract: Rechargeable zinc batteries, with a theoretical capacity of 820 mAh g -1 , provide advantages such as non-flammability, low cost, and environmental compatibility, but dendrite growth remains a major obstacle to long-term cycling.Here, we investigated the coordination behavior of diethylenetriamine (DETA) and triethylenetetramine (TETA) at pH 5.5 using proton nuclear magnetic resonance (¹H NMR) spectroscopy, operando optical microscopy, electrochemical measurements, and scanning electron microscopy.Both ligands reversibly interact with Zn 2+ , yet TETA exhibits superior ability to regulate deposition and suppress dendrite growth.This advantage is attributed to more stable Zn -TETA complexation.These findings emphasize the importance of coordination stability and interfacial regulation in additive design, providing practical guidance for improving the cycling performance of aqueous zinc batteries.
Source: Electrochemistry
Authors: Tetsuji INUI, Yuji SUGIBAYASHI, Hiroshi TOMIYASU, Hiroshi ATARASHI, Yoon-Yul PARK
Institution: Qualtec Co., Ltd. (Japan)
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,130
OpenAlex ID: W7124461207