Onux is rethinking the future of urban mobility through a smart battery swap system that eliminates long charging times and brings seamless convenience to electric transportation. Designed to be fast, intuitive, and scalable, it creates a smoother user experience while supporting the shift toward more sustainable, accessible, and modern cities.

Most EV battery solutions are either slow to charge or too complex for everyday users. Onux set out to make urban mobility seamless with a simple, modular, and sustainable battery-swap system.

Urban electric mobility needs infrastructure that’s efficient and user-friendly. The challenge was to design a battery-swap station that combined engineering reliability with a premium, intuitive user experience, while remaining visually aligned with modern urban environments.

The project started with benchmarking existing EV systems and identifying friction points: long charging times, bulky systems, and lack of user autonomy. From there, the focus turned to modularity, ergonomics, and intuitive interaction.

Led the CAD and 3D visualization process:

CAD modeling of the full system (rack, modular batteries, locking mechanism).

Stress analysis to validate structural feasibility.

Renders in high resolution to communicate aesthetics, functionality, and materials.

UI/UX concepts for the swapping process.

Awarded the Ei! Best Final Degree Project at Elisava 2022.

Delivered a complete vision: engineering, design, and storytelling combined.

Helped position Onux as a feasible and innovative proposal for sustainable urban mobility.

Created a visual system that speaks to investors, designers, and end-users alike.

Role: Lead CAD Designer & Visualization Lead

Client: Elisava Racing Team – ERT Lime 4.0

Colaborators: Ricardo Horno, Joaquim Gutiérrez, Guillermo Garcia, Sandra Canals, Muna Abduhl, Sara Mues, Mar Tarrazona

Duration: 9 months

Tools: PTC Creo, KeyShot, Photoshop, Illustrator