Redox flow battery

A redox flow battery comprising:

• a tank configured to store an electrolyte;
• and
• a distribution mechanism to distribute the electrolyte to a battery cell;
• wherein the tank has a partition portion partitioning a space inside the tank into a first space and a second space,
• the distribution mechanism includes:
• a first supply passage to supply the electrolyte in the first space to the battery cell;
• a second supply passage to supply the electrolyte in the second space to the battery cell;
• one supply-side connection passage connecting downstream sides of the first supply passage and the second supply passage to the battery cell;
• a first discharge passage to discharge the electrolyte that has passed through the battery cell into the first space;
• a second discharge passage to discharge the electrolyte that has passed through the battery cell into the second space;
• one discharge-side connection passage connecting upstream sides of the first discharge passage and the second discharge passage to the battery cell;
• a supply-side switching valve that is provided at a location where the first supply passage, the second supply passage, and the supply-side connection passage are connected to each other, the supply-side switching valve being configured to switch between allowing a flow of the electrolyte from the first supply passage to the supply-side connection passage and allowing a flow of the electrolyte from the second supply passage to the supply-side connection passage;
• and
• a discharge-side switching valve that is provided at a location where the first discharge passage, the second discharge passage, and the discharge-side connection passage are connected to each other, the discharge-side switching valve being configured to switch between allowing a flow of the electrolyte from the discharge-side connection passage to the first discharge passage and allowing a flow of the electrolyte from the discharge-side connection passage to the second discharge passage, and
• the partition portion is composed of a flexible material.