Journal article Open Access

Optimizing the Design of an Alkaline Water Splitting Device Test cell for Renewable Energy Storage as Hydrogen.

Charles W. Dunnill*; Adam Rearden; Stephen Mandale; Katherine Glover; Robert Phillips

The use of alkaline electrolysis for the production and storage of hydrogen gas is an effective, scalable, and efficient method of storing renewable energy. Optimization of a specific alkaline electrolysis device is achieved by iteratively modifying and improving upon the geometry of the device. Methods to reduce electrolyte leakage from the cell are successfully developed and the performance benefits of reduced cell width investigated. Well-understood electrochemical principles were used to further characterize the performance of the various cell designs investigated. The possibility of further design improvements to the cell are discussed, such as the feasibility of incorporating zero-gap technology into the device. Scale-up to pilot scale systems is also presented demonstrating the linear scalability of the design.

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