Intramolecular Hydrogen Bond Improved Durability and Kinetics for Zinc-Organic BatteriesOACSTPCD
Intramolecular Hydrogen Bond Improved Durability and Kinetics for Zinc-Organic Batteries
Organic compounds have the advantages of green sus-tainability and high designability,but their high solubility leads to poor durability of zinc-organic batteries.Herein,a high-performance qui-none-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 cur-rent densities.Specifically,the H-PNADBQ electrode with high load-ing(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.
Tianjiang Sun;Jun Pan;Weijia Zhang;Xiaodi Jiang;Min Cheng;Zhengtai Zha;Hong Jin Fan;Zhanliang Tao
Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Renewable Energy Conversion and Storage Center,College of Chemistry,Nankai University,Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300071,People's Republic of China||School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore 637371,SingaporeSchool of Physical and Mathematical Sciences,Nanyang Technological University,Singapore 637371,SingaporeKey Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Renewable Energy Conversion and Storage Center,College of Chemistry,Nankai University,Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300071,People's Republic of ChinaSchool of Physical and Mathematical Sciences,Nanyang Technological University,Singapore 637371,Singapore||Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,School of Physics Science and Engineering,Tongji University,Shanghai 200092,People's Republic of China
Zn-organic batteriesH-PNADBQ polymerIntramolecular hydrogen bondReduced solubilityImproved π-conjugated level
《纳微快报（英文）》 2024 (003)
138-148 / 11
This study was supported by the National Natural Science Foundation of China(22279063 and 52001170),the Fundamental Research Funds for the Central Universities,and Tianjin Natural Science Foundation(No.22JCYBJC00590).H.J.F.acknowledge the financial support by the Ministry of Education,Singapore,under its Academic Research Fund Tier 1 Thematic(RT8/22).The work was carried out at Shanxi Supercomputing Center of China,and the calculations were performed on TianHe-2.We thank the Haihe Laboratory of Sustainable Chemical Transfor-mations,Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)for financial support.
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