Solution engineering brief
Thermal Runaway Protection Components
Position-led barriers and layered constructions for cell, module, pack and ESS thermal-propagation strategies.
The engineering problem
Start with the installed interface.
A thermal event is defined by the cell, state of charge, initiation method, spacing, vent direction and enclosure—not by a single material property.
We convert aerogel, mica and multilayer barrier constructions to the installation geometry, then support evaluation under the customer’s selected exposure and acceptance criteria.
Position and function
Where this component works—and what it must do
- Cell-to-cell gap
- Cell top and vent-adjacent areas
- Module side and end plate
- Module-to-module interface
- Pack lid and internal shield
- Reduce conductive heat transfer
- Create a heat-capacity and thickness buffer
- Maintain dielectric separation
- Manage edge, frame and handling requirements
Selection logic
Decision data customers and engineers expect
| Decision dimension | What must be defined |
|---|---|
| Exposure | Define source temperature or heat flux, duration, initiation position and pass/fail threshold. |
| Geometry | Lock nominal and compressed thickness, edge gaps, seams, penetrations and fastening. |
| Evidence | Connect every result to the tested grade, stack, sample conditioning and complete setup. |
| Integration | Balance barrier performance with dielectric, dust, stiffness, assembly and mass requirements. |
Data required
Send these inputs for a useful first review
- Cell chemistry, format, capacity and state of charge
- System level and exact installation position
- Gap, available thickness and tolerance stack
- Thermal exposure and cold-face target
- Drawing, sample quantity and validation stage
Continue the evaluation
Related engineering pathways
Frequently asked questions
Clear answers before sampling
Can one barrier prevent thermal runaway?
No component should be presented as a universal prevention device. A barrier may help delay heat or flame transfer within a defined system and test condition.
Is low thermal conductivity enough to select a barrier?
No. Transient exposure, thickness, compressed condition, edges, joints, electrical behavior and assembly geometry also influence the result.
Can VOLTFEND provide a custom multilayer construction?
Yes, subject to material availability and validation. We review the functional stack, converting method, handling and drawing before sampling.
Drawing-led response