Titanium bipolar plates for proton exchange membrane electrolysis cells (PEMECs) combine exceptional corrosion resistance, lightweight properties, and high mechanical strength. Engineered with ultra-thin profiles and precision-machined flow channels, these plates ensure efficient gas-liquid transport and low voltage losses. Advanced surface passivation techniques enhance durability in acidic, high-potential environments while maintaining low interfacial contact resistance (<8 mΩ·cm²). Optimized for scalability and cost efficiency, titanium plates reduce system weight and maintenance demands. Ideal for renewable energy storage and hydrogen infrastructure, they enable sustainable, high-efficiency water electrolysis.