Electric vertical take-off and landing aircraft demand battery systems that combine high performance, low weight, safety and reliability. Beam Global supports the development of next-generation aviation technologies through advanced battery engineering.
eVTOL platforms operate in one of the world’s most demanding environments, where energy density, weight, and thermal management directly influence aircraft performance.
One of the defining battery challenges in eVTOL is the duty cycle. Hover and transition draw far more power than cruise, so the pack can be constrained by a short, severe power demand rather than by the energy consumed over the flight — and it faces that demand on every takeoff and every landing, for the life of the aircraft.
High-rate discharge generates heat, and heat is what limits how hard a pack can be worked and how long it lasts. Beam’s patented Phase Change Composite (PCC™) absorbs heat at the cell and reduces peak cell temperature and cell-to-cell temperature variation across the pack — passively, with no pump, fan, coolant or control software, and therefore without the mass and complexity of an active thermal-management subsystem.
For high-power duty cycles, PCC™ can be integrated with active cooling. Beam packs are built with a four-layer protection architecture, designed so that a single-cell event does not become a pack-level event.
An aircraft on the ground is not earning. Turnaround time is a commercial constraint, and fast charging is normally paid for in cycle life.
• Beam’s patented Intelligent Battery Thermal Management (iBTM™), resident in the Smart BMS, manages charge rate against the pack’s real-time thermal state — bringing cells into the temperature band where charging is both fastest and least damaging, and holding them there through the charge.
• U.S. Patent No. 12,431,549.
