All-Vanadium-Flow-Energiespeicherung wird Umweltverschmutzung verursachen
Vanadium Redox-Flow Batterien haben nicht nur das Potenzial, die Energiespeicherung zu revolutionieren, sondern kommen heute bereits zum Einsatz. Vor allem China treibt die Entwicklungen voran.
Does membrane modification reduce vanadium ion permeability?
The permeability of these composite membranes is mainly in the range of 10 × 10 −7 cm 2 min −1 and below (Figure 11d), which is a significant decrease compared to the permeability of the pure membrane (Figure 5c). This result suggests that vanadium ion permeation can be reduced by membrane modification.
How can PFSA reduce the penetration of vanadium ions with positive charge?
In addition, the introduction of positive charged groups (charge repulsion effect) in the PFSA molecular chain is also an effective way to reduce the penetration of vanadium ions with positive charge.
How can nanomaterials reduce the penetration of vanadium ions?
To suppress the penetration of vanadium ions, researchers have explored incorporating fillers of nanomaterials such as metal nanoparticles, carbon nanotubes, and graphene nanosheets into the membrane matrix with additives.