相互锁定驱动和键介导的分子约束对水性 Zn-有机电池的高速度和耐用性类聚合物阴极的分子约束
Dongfei Sun1, Wenyan Yang1, Xin Yu1
1Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, College of Engineering, Northwest Normal University, Lanzhou 730070, PR China.
Journal of colloid and interface science
|November 6, 2025
概括
我们开发了一种新的juglone/碳纳米管复合阴极,用于水性离子电池的聚烯酸粘合剂. 这一策略增强了稳定性和性能,克服了类阴极中的溶解问题.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 由于可持续性,类聚合物阴极对水性离子电池 (AZIB) 是有前途的.
- 然而,溶解和缓慢的氧化还原动力学限制了它们在AZIBs中的实际用途.
研究的目的:
- 为AZIBs开发一种稳定,高性能的类阴极.
- 为了解决类阴极的溶解和缓慢动力学限制.
主要方法:
- 构建了一个由juglone/碳纳米管复合材料与聚烯酸 (PAANa) 结合剂组成的综合网络.
- 利用协同作用的结, ππ堆叠,以及一个导电网络,以提高稳定性.
- 研究了PAANa结合剂的结合能量,粘附性,可分散性,可湿性和机械灵活性.
主要成果:
- J@CNT-PAANa阴极表现出强大的粘附性,抑制了龙溶解,并增强了接口稳定性.
- 在0.1 A g-1下实现了178 mAh的可逆容量.
- 在2000个循环后维持了110 mAh g-1在0.5 A g-1以80.1%的容量保留,显著优于常规结合剂.
结论:
- 多重互锁策略有效地提高了AZIB中类阴极的结构稳定性和电化学性能.
- PAANa粘合剂在改善界面稳定性和离子扩散方面发挥着至关重要的作用.
- 这项工作提供了关于水溶性结合剂的见解,用于水性Zn-有机电池中的有机电极.
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