Offset Bipolar Plate Geometry for Short-Circuit-Safe Stack Alignment

The patent applies preliminary action by pre-forming shoulders on the bipolar plates during manufacturing, before the stacking process. These shoulders are positioned at predetermined locations that will engage with corresponding features on adjacent plates, establishing the correct alignment in advance before the plates are actually stacked together. This pre-positioning mechanism ensures that when stacking occurs, the plates automatically align correctly without requiring complex external guidance systems, thereby preventing sliding components and short circuits.

The patent introduces an intermediary alignment feature - the shoulder structure - that acts as a mediator between the bipolar plates during stacking. This shoulder serves as an intermediate element that facilitates proper alignment by providing a physical reference surface that engages with corresponding features on adjacent plates. The shoulder acts as a buffer and guide, ensuring that the plates settle into the correct position relative to each other, thereby preventing misalignment and the associated risks of sliding and short circuits.

The patent implements self-service by designing the bipolar plates with integrated shoulder features that automatically guide alignment during stacking without requiring external guidance mechanisms. The shoulders are part of the plate structure itself, and they self-align with corresponding features on adjacent plates during the stacking process. This self-guiding mechanism simplifies the stacking process while ensuring precise alignment, as the plates themselves provide the alignment function rather than requiring separate guidance systems.

The patent applies preliminary action by pre-forming shoulders on the bipolar plates during manufacturing, before the stacking process. These shoulders are positioned at predetermined locations that will engage with corresponding features on adjacent plates, establishing the correct alignment in advance before the plates are actually stacked together. This pre-positioning mechanism ensures that when stacking occurs, the plates automatically align correctly without requiring complex external guidance systems, thereby preventing sliding and misalignment.

The patent applies segmentation by dividing the bipolar plate into distinct functional zones with different potentials, separated by insulating shoulders. The shoulders create physical segments that electrically isolate regions of different potentials, preventing conductor elements from bridging between them. This segmentation allows the stack to maintain compact dimensions while ensuring electrical safety, as the insulating shoulders act as barriers that prevent short circuits even when the overall stack size is reduced.

The patent introduces an intermediary insulating shoulder structure that acts as a mediator between regions of different potentials. This shoulder serves as an intermediate barrier that prevents direct electrical contact between conductive elements at different potentials, thereby eliminating the short circuit risk. The intermediary shoulder maintains the necessary electrical isolation while allowing the stack to remain compact, as it provides the insulation function without requiring additional spacing between high and low potential regions.