Battery & Redox Flow Coatings
Thin-film surface solutions for stable, efficient battery and redox flow systems.




Thin-film coatings that stabilize battery and redox flow system performance
Modern batteries and redox flow systems depend on stable interfaces to deliver consistent performance and long service life. Electrode surfaces and metallic components operate in an electrolyte environment that can trigger reactions.
These reactions can drive structural changes, increase contact resistance, and accelerate degradation. Thin-film coatings offer a targeted way to protect and enhance these interfaces, control ion and electron transport, and limit parasitic reactions that reduce efficiency and stable operation.
With nanoscale precision, sputtered layers help prevent corrosion, reduce interfacial losses and support the reliability needed in advanced battery architectures and large-scale redox flow storage.
Unstable interfaces limit battery and redox flow performance
Rechargeable batteries and redox flow systems face degradation driven by reactions at the interface between electrodes and electrolytes. Metals can corrode, conductive surfaces can lose activity and insulating layers can form, raising resistance and reducing cycle life. In compact battery designs, volume changes and weak adhesion can cause cracks or delamination, while in redox flow batteries the acidic electrolyte accelerates corrosion of metallic bipolar plates and current collectors.
OEMs and system developers need surface solutions that stabilize these interfaces, limit side reactions and maintain conductive over long operating periods without increasing system complexity or cost.


Ionbond’s thin-film expertise for advanced battery and redox flow systems
Ionbond supports the development of next-generation battery and redox flow components with thin-film coatings that stabilize interfaces and protect exposed surfaces. Our sputtered layers offer controlled thickness, strong adhesion and precise composition, allowing us to target degradation mechanisms in electrodes, electrolytes and metallic plates.
Engineering teams work closely with customers from early sampling to volume production, tuning coating properties for each design. With global capacity in batch and inline PVD coating systems, Ionbond provides reliable corrosion protection, enhanced conductivity, extended lifetime, improved durability, and consistent coating quality for applications that demand long cycle life and efficient energy storage.
Why choose Ionbond coatings for battery & redox flow systems?
Ionbond coatings deliver key advantages for battery and redox flow systems.
Enhanced durability
Our coatings protect against corrosion and degradation, improving long-term reliability and cycle life.
Superior conductivity
They stabilize interfaces and maintain conductivity, optimizing energy storage efficiency.
Scalable solutions
Ionbond offers both custom and large-scale production capabilities to meet high-demand applications.
Proven reliability
Trusted by OEMs for consistent, high-quality coatings that prevent unwanted reactions.
Cost efficiency
Our thin-film coatings balance performance and cost, supporting efficient, scalable manufacturing.
PVD thin films that stabilize battery and redox flow interfaces
Battery and redox flow components depend on surfaces that remain stable under chemical and mechanical stress. Thin PVD films provide this stability by forming protective, conductive or functional layers that reduce interfacial degradation and maintain performance over long operating periods. These coatings help suppress side reactions, improve adhesion and lower resistance, supporting reliable operation in compact batteries and large-scale flow systems.
All thin films described here are deposited by magnetron sputtering, one of Ionbond’s core PVD technologies used across energy storage and decarbonization applications.
Questions?
Discuss your challenges with Joris Ummels
Joris Ummels, Global Segment Manager Decarbonization, will be glad to support you.
We will get back to you as soon as possible


Joris Ummels
Global Segment Manager Decarbonization

