Vertical has selected Molicel to provide high-performance battery cells for the VX4 eVTOL aircraft
Molicel is a leader in high-power lithium-ion cells with technology already in use across some of the most demanding applications, counting NASA and Williams Advanced Engineering as its clients
Vertical and Molicel have entered into a strategic partnership that will combine Molicel’s leading cell technology with Vertical’s proprietary battery pack design

London, UK; New York, USA & Taipei, Taiwan – Vertical Aerospace (Vertical) [NYSE: EVTL], a global aerospace and technology company that is pioneering zero emissions aviation, today announces a strategic partnership with E-One Moli Energy Corp (Molicel), a leading manufacturer of lithium-ion cells, to supply high power cylindrical cells for Vertical’s VX4 eVTOL aircraft.

With today’s announcement, Vertical has now secured the supply of market leading battery cells to develop the VX4 through to certification and entry into service, working with Molicel to increase supply as the VX4 is brought into mass production. Vertical reviewed the capabilities of dozens of cell manufacturers before selecting Molicel as its battery partner as it believes Molicel is uniquely placed to meet the performance and safety requirements of the VX4 and to continue to deliver innovation and improved performance over time.

With more than 40 years’ experience in energy research and development, Molicel has established itself as one of the world’s leading supplier of high-power battery cells. Specialising in high power, low impedance and fast charge, Molicel deliberately focuses on demanding, high-performance applications of its batteries, with its technology already in use across space, advanced automotive and power tool applications. Partners include NASA and William’s Advanced Engineering.

Battery cells, and the wider battery system, are critical components for the safety, performance and economics of the VX4.

Safety – Safe flight is a non-negotiable and critical for our aircraft. Part of Vertical’s certification compliance journey is proving the management of thermal runaway events and Molicel’s high power cylindrical cell format is key this.
Performance – The VX4 needs high-performance cells to enable the range and payload Vertical’s customers demand. Molicel have the highest power and energy cylindrical cell in the world.
Economics – The VX4 battery system needs to be economic both as a component of the product and in second-life applications. Molicel will help optimise the life cycle of the battery cell for eVTOL as well as other second-life applications.