Devices, systems, and methods for molten fluid electrode apparatus management

A molten electrode battery comprising:

• a reaction chamber comprising a solid electrolyte positioned in the reaction chamber to form a positive electrode region on a first side of the solid electrolyte and to form a negative electrode region on a second side of the solid electrolyte, the positive electrode region containing positive electrode material;
• a negative electrode reservoir,
• negative electrode material within the negative electrode reservoir and the negative electrode region;
• an electrode material distribution system configured to regulate, a flow of fluid negative electrode material from the negative electrode reservoir to the negative electrode region such that a volume of the flow is at least reduced during a safety mode of operation.

A method comprising:

• containing a negative electrode material within a plurality of negative electrode reservoirs;
• maintaining a positive fluid electrode within a positive electrode region in a fluid state at least during a discharge state;
• maintaining a negative fluid electrode within the negative electrode region in the fluid state at least during the discharge state, the positive electrode region formed in a reaction chamber on a first side of a solid electrolyte positioned and the negative electrode region formed in the reaction chamber on a second side of the solid electrolyte, the solid electrolyte extending from the negative fluid electrode to the positive fluid electrode;
• and
• transferring, during the discharge state, fluid negative electrode material from at least one selected negative electrode reservoir of the plurality of negative electrode reservoirs to the negative electrode region.