US Patent 9133553 Externally-reinforced water electrolyzer module

A structural plate with external reinforcing means is provided for an electrolyzer module. The structural plate defines at least one degassing chamber and a half cell chamber opening. The external reinforcing means contact the structural plate for mitigating outward displacement of the structural plate in response to fluid pressure within the structural plate. The structural plate and the external reinforcing means define interlocking features for achieving contact and corresponding mechanical reinforcement.