Nano-Micro Letters, Volume. 16, Issue 1, 046(2024)
Intramolecular Hydrogen Bond Improved Durability and Kinetics for Zinc-Organic Batteries
Organic compounds have the advantages of green sustainability and high designability, but their high solubility leads to poor durability of zinc-organic batteries. Herein, a high-performance quinone-based polymer (H-PNADBQ) material is designed by introducing an intramolecular hydrogen bonding (HB) strategy. The intramolecular HB (C=O⋯N–H) is formed in the reaction of 1,4-benzoquinone and 1,5-naphthalene diamine, which efficiently reduces the H-PNADBQ solubility and enhances its charge transfer in theory. In situ ultraviolet–visible analysis further reveals the insolubility of H-PNADBQ during the electrochemical cycles, enabling high durability at different current densities. Specifically, the H-PNADBQ electrode with high loading (10 mg cm-2) performs a long cycling life at 125 mA g-1 (> 290 cycles). The H-PNADBQ also shows high rate capability (137.1 mAh g-1 at 25 A g-1) due to significantly improved kinetics inducted by intramolecular HB. This work provides an efficient approach toward insoluble organic electrode materials.
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Tianjiang Sun, Jun Pan, Weijia Zhang, Xiaodi Jiang, Min Cheng, Zhengtai Zha, Hong Jin Fan, Zhanliang Tao. Intramolecular Hydrogen Bond Improved Durability and Kinetics for Zinc-Organic Batteries[J]. Nano-Micro Letters, 2024, 16(1): 046
Category: Research Articles
Received: Aug. 7, 2023
Accepted: Oct. 30, 2023
Published Online: Jan. 23, 2025
The Author Email: Fan Hong Jin (fanhj@ntu.edu.sg), Tao Zhanliang (taozhl@nankai.edu.cn)