Products

The high complexity of redox flow battery systems and the transition from individual projects to growing order volumes on the way to series production are leading many system integrators and plant manufacturers to focus more on the overall system.

This requires close collaboration with development partners and suppliers, where Schmalz offers integrators a unique combination of skills:

As a leading manufacturer of components and subsystems in vacuum-based automation and handling technology, Schmalz has in-depth expertise in the development of stacks for redox flow battery systems in the Energy Storage business unit.

The stack – the heart of the redox flow battery systems

Schmalz has established itself as an accomplished developer and manufacturer of redox flow battery stacks. The number of stacks determines the performance of a battery system. The materials used in the stack, the chemical resistance and the design offer great potential for optimizing performance and achieving economies of scale.

Schmalz therefore works consistently to optimise the performance, efficiency and reliability of its stacks and to offer customers the best stack on the market.

Stacks of Schmalz...

are optimized in the standard configuration for use in vanadium redox flow battery systems. All material, function and long-term tests are also carried out on the basis of this electrolyte.
have been continuously refined since 2014. As a result, power density has increased fivefold from the first generation to the fourth generation.
are also suitable for use with alternative electrolyte chemistries (including organic electrolytes) in addition to vanadium-sulfuric acid electrolyte, as the materials required for this can be adapted to customer-specific needs in our stacks.

Stack series and options

Here you will find the available stack series, along with their technical specifications and available options.

Redox-Flow-Stack RFB-Gen.4

Europe's most powerful redox flow stack
Variable number of cells
140 kW/m³
Scalable 10 – 40 kW in Flow Through
Electrolyte-independent

Download data sheet

Redox-Flow-Stack RFB-Gen.3

Performance 10 kW
Variable number of cells
70 kW/m³
Electrolyte-independent

Download data sheet

Open Circuit Voltage OCV-Cell

Reference for monitoring correct stack operating parameters

Interfaces

Electrical: 2x 4mm connectors
Hydraulic: 4x D3.0

State of Health SOH-Cell

Electrolyte Monitoring

Interfaces

Electrical: 2x 4mm connectors
Hydraulic: 4x D3.0

Subsystems

Schmalz also supplies modular subsystems on request, i.e. stacks with corresponding peripherals for integration into a higher-level battery system.

Services

Through our many years of experience in the development and operation of stacks, we have built up extensive expertise in the design and operation of battery systems. If desired, we also offer training and engineering services.

The range of services includes:

Customized development and adaptation of stacks
Support in the development of suitable operating routines

Competence and equipment