Anode and/or cathode pan assemblies in an electrochemical cell, and methods to use and manufacture thereof

An electrochemical cell, comprising:

• an anode pan or a cathode pan, or both the anode pan and the cathode pan;
• one or more ribs inside the anode pan, or the cathode pan, or both the anode pan and the cathode pan;
• and
• a baffle plate coupled to the one or more ribs, wherein the baffle plate comprises a plurality of slots having a width equal to a width of the one or more ribs so that plurality of slots are configured to receive the one or more ribs,
• wherein the baffle plate partitions a volume in the anode pan or the cathode pan or both the anode pan and the cathode pan to create a riser region on a first side of the baffle plate and a down-comer region on a second side of the baffle plate opposite of the first side,
• wherein the riser region facilitates gas formed in the electrochemical cell to rise and avoid formation of gas pockets, and
• wherein the down-comer region facilitates downward flow of an electrolyte disposed in the electrochemical cell, and
• wherein the rise of the gas and the downward flow of the electrolyte causes circulation in the electrochemical cell, the circulation configured to facilitate thermal equilibration and reduced temperature variations in the electrolyte and reduced heating of a membrane.