Hybrid Hydrogel Electrolyte Based on Metal-Organic Supermolecular Self-Assembly and Polymer Chemical Cross-Linking for Rechargeable Aqueous Zn-MnO2 Batteries.
Yuanyuan HuPing ShenNa ZengLulu WangDi YanLulu CuiKai YangCuiping ZhaiPublished in: ACS applied materials & interfaces (2020)
Multifunctional metal-organic supramolecular hydrogels have achieved great progress nowadays. However, their applications in aqueous batteries for flexible energy storage devices remain limited due to their unsatisfactory mechanical properties. Here, we report a rapid formation of supramolecular hydrogel by adenosine 5'-monophosphate (AMP) and manganese ions (Mn2+). Additionally, the AMP-Mn hydrogel is combined with chemical cross-linking poly(vinyl alcohol) (PVA) polymer networks to form an AMP-Mn/PVA hybrid hydrogel, which effectively solves the problems with regard to the mechanical properties and stability of metal-organic supramolecular hydrogels as well as self-healing of tough chemical cross-linking polymer networks. The AMP-Mn/PVA hybrid hydrogel served as the hydrogel electrolyte to fabricate flexible Zn-MnO2 batteries, which exhibit fast ion conductivity, excellent electrochemical stability, and robust mechanical strength, indicating feasible practical application prospects. This investigation provides a promising opportunity for the application of metal-organic supramolecular hydrogels in the field of energy storage.
Keyphrases
- drug delivery
- hyaluronic acid
- water soluble
- tissue engineering
- wound healing
- protein kinase
- solid state
- ionic liquid
- cancer therapy
- drug release
- room temperature
- metal organic framework
- gold nanoparticles
- heavy metals
- transition metal
- risk assessment
- extracellular matrix
- mass spectrometry
- current status
- molecularly imprinted