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用可扩展通量合成乙烯链共价有机骨架构建对称全有机质子电池
作者:小柯机器人 发布时间:2025/9/30 16:09:24


近日,南开大学张振杰团队实现了用可扩展通量合成乙烯链共价有机骨架构建对称全有机质子电池。相关论文于2025年9月29日发表在《美国化学会志》上。

对称全有机电池的设计和组装,消除了对不同阴极/阳极材料的需求,同时保持相当的能量存储性能,一直是一个备受追捧的目标,但几乎没有实现高容量和长期稳定性。

研究组采用通量合成方法设计并合成了两个吡嗪[2,3-g]喹诺啉核心基乙烯连接共价有机框架(COFs),由于相邻C = N基团的化学环境不同,具有两步氧化还原反应,制备了对称的全有机质子电池,并通过机理研究证实了这一点。组装的COF基全有机电池表现出优异的性能,具有良好的比容量(0.1 A g-1时147 mAh g-1)和最大能量密度(87 Wh/kg),在高电流密度下循环超过5000次,是目前报道的全有机质子电池中最好的。

通量合成方法促进了COFs的克级生产,使其能够成功组装成功能软包电池。因此,组装的软包电池在0.1 A g-1时提供了92 mAh g-1的可逆最大容量,对应于0.92 Ah的总容量,接近理论设计容量。这项工作对全有机质子电池的设计具有启发意义,并促进了COFs在未来的实际应用。

附:英文原文

Title: Constructing Symmetric All-Organic Proton Battery via Scalable Flux Synthesis of Vinylene-Linked Covalent Organic Frameworks

Author: Fengdong Wang, Qingxue Ma, Shaochun Wu, Yi Yang, Xiyuan Wang, Yao Chen, Peng Cheng, Zhenjie Zhang

Issue&Volume: September 29, 2025

Abstract: The design and assembly of symmetric all-organic batteries, eliminating the need for distinct cathode/anode materials while maintaining comparable energy storage performance, has been a highly sought-after objective but has barely been achieved with both high capacity and long-term stability. Herein, we design and synthesize two pyrazino[2,3-g]quinoxaline core-based vinylene-linked covalent organic frameworks (COFs) via the flux synthesis method, featuring two-step redox reactions due to the distinct chemical environments of adjacent C═N groups, to fabricate a symmetric all-organic proton battery, which was confirmed by the mechanism study. The assembled COF-based all-organic battery exhibits excellent performance, with good specific capacity (147 mAh g–1 at 0.1 A g–1) and maximum energy density (87 Wh/kg) with over 5000 cycles at high current density, among the best of the reported all-organic proton batteries. The flux synthesis method facilitates the gram-scale production of COFs, enabling their successful assembly into functional pouch cells. As a result, the assembled pouch cell delivers a reversible maximum capacity of 92 mAh g–1 at 0.1 A g–1, corresponding to a total capacity of 0.92 Ah, approaching the theoretical design capacity. This work inspires the design of all-organic proton batteries and promotes practical application of COFs in the future.

DOI: 10.1021/jacs.5c11360

Source: https://pubs.acs.org/doi/abs/10.1021/jacs.5c11360

期刊信息

JACS:《美国化学会志》,创刊于1879年。隶属于美国化学会,最新IF:16.383
官方网址:https://pubs.acs.org/journal/jacsat
投稿链接:https://acsparagonplus.acs.org/psweb/loginForm?code=1000