Cell-to-body: the battery joins the structure
In BYD’s SEAL, the battery is integrated with the body floor. This is a further design choice beyond arranging cells efficiently inside a pack.
Canvas of Knowledge · 14 November 2026 · Illustrated explainerA SHARED FLOOR
BYD describes joining the battery pack’s upper cover with the body floor. The resulting assembly combines the upper cover, Blade Battery and lower tray into a sandwich-like structure.
SYSTEM DESIGN
The engineering goal is to use the battery assembly as both energy storage and part of the vehicle structure, while managing occupant space and mechanical loads.
THE RIGHT QUESTION
Ask how the specific vehicle is inspected and repaired after damage. Structural integration, battery swapping and module-level repair are separate capabilities; none follows automatically from the others.
THE IDEA TO KEEPCTB describes integration with the vehicle body. CTP describes integration inside the battery pack.
Sources & further reading
Sources reviewed 14 November 2026. Specifications and availability depend on the product, market and date. Source organisations do not endorse this website.