Tubular SOEC stack with anode blowing

Blowing evens out heat

Novel anode-side blowing strategies effectively mitigate thermal non-uniformity within the stack, enhancing co-electrolysis performance and durability.

Zerui, Liu · Yue, Yao · Shi, J. · Wang, Yuqing · Shi, Yixiang · Cai, Ningsheng · Shuang, Li

International Journal of Hydrogen Energy 2026

Specifications

Inlet temperature gradient

{'zh': '26.70', 'en': '26.70'} K/cm

Cell-to-cell thermal standard deviation

{'zh': '14.89', 'en': '14.89'}

Reduction in maximum intra-cell temperature gradient

{'zh': '35.73', 'en': '35.73'} %

Enhancement in electrochemical performance

{'zh': '21.64', 'en': '21.64'} %

Reduction in inter-cell thermal standard deviation

{'zh': '54.73', 'en': '54.73'} %

Advantages

More uniform heat

Stepped blowing reduces the maximum intra-cell temperature gradient by 35.73%, mitigating local hot spots.

Performance improved significantly

Optimized anode flow distribution enhances overall electrochemical performance by 21.64%.

Reduced cell-to-cell variation

Front blowing lowers the inter-cell thermal standard deviation by 54.73%, improving stack consistency and lifetime.

Applications

• SOEC co-electrolysis for hydrogen：Enhance co-electrolysis hydrogen production efficiency and durability through more uniform heat distribution.
• High-temperature electrolysis for fuel production：In high-temperature electrolysis, blowing reduces thermal gradients to improve fuel production stability and performance.
• Stack thermal management：Directly control stack temperature distribution via anode blowing to avoid hot spots and performance decay.