BYD

Last updated February 1, 2026

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Wound electrode core architecture: BYDRecent Research Landscape

Mechanical stress during high-speed winding of cylindrical cells causes internal short circuits and capacity loss. Precise control of the electrode sheet geometry and winding tension ensures structural integrity and safety in high-density vehicle battery packs.

What technical problems is BYD addressing in Wound electrode core architecture?

Internal electrode structural misalignment

(106)evidences

Mechanical stress and misalignment during the winding process lead to poor contact or structural damage between the pole piece and current collector. Resolving this prevents high internal resistance and thermal runaway in high-capacity cells.

Internal structural instability

(73)evidences

High impedance at the electrode-to-tab interface limits power density and causes localized heating. Reducing this resistance prevents thermal runaway and improves charging efficiency in high-capacity cylindrical cells.