Aerospace materials | Lithium-ion safety | Test-led development
Hiryuu Technologies
Thermal protection and fire mitigation engineering for aerospace and lithium-ion battery systems.
What We Work On
Engineering for heat-driven failure modes.
Hiryuu develops thermal protection for aerospace structures and compact barriers intended to limit thermal runaway propagation in lithium-ion battery packs.
Battery Fire Mitigation
Insertable barriers designed to reduce heat transfer and flame propagation while preserving electrical isolation and cell-to-cell separation.
Aerospace Thermal Protection
Expendable thermal protection concepts for small reentry capsules, supported by material screening, coupon testing, and transient heat-transfer modeling.
Applied R&D Support
Concept development and test planning for early-stage programs that need a practical path from analysis to validation.
Current Development Focus
A thin thermal barrier for Li-ion 6T battery packs.
The concept fits inside existing MIL-PRF-32565 battery cases. It is intended to reduce pack-level abuse severity without changing the case, cells, or chemistry.
Three layers provide the core functions: a low-conductivity hot-face shield, a staged-response reactive core, and an endothermic dielectric backer.
Platform
MIL-PRF-32565 Li-ion 6T battery architecture
Use case
Vehicle power, silent watch, auxiliary electronics, and sustainment
Phase I work
Material screening, dielectric checks, dimensional fit, and feasibility testing
Screening basis
Preliminary thermal review around 50 kW/m2, 800 C, and 300 seconds
Engineering Method
From material stack to test article.
Define the constraints, screen candidate materials, test the critical properties, and update the model before scaling.
Frame the constraint
Start with fit, temperature, dielectric, mass, and integration limits.
Build the layer stack
Combine shielding, staged heat response, and insulation into one insert concept.
Screen and test
Use thermal exposure, surface temperature, erosion, and dielectric behavior to compare options.
Refine for integration
Carry the best configuration toward representative hardware and larger validation work.
Earlier Aerospace Work
Thermal protection for small reentry systems.
Earlier work explored an expendable thermal protection system for small reentry capsules, pairing a woven basalt-fiber and phenolic-resin outer layer with a lightweight ceramic-fiber blanket.
The validation plan combined transient heat-transfer modeling, coupon flame testing, infrared temperature measurement, and comparison of test data to the model.
Contact
Discuss a thermal, battery safety, or aerospace R&D problem.
For technical discussions, partnership opportunities, or early-stage development, contact Hiryuu Technologies directly.