ELECTROLYTE-CIRCULATION BATTERY

摘要

This electrolyte-circulation battery is provided with: a cell frame that has a bipolar plate in contact with an electrode constituting a battery cell, and a frame body surrounding the peripheral edge of the bipolar plate; and a seal member disposed on the frame body, the seal member preventing electrolyte fed to the battery cell from leaking out of the frame body; wherein a seal groove into which the seal member fits is formed on the frame body, the seal groove is provided with a narrow section for causing the seal member to elastically deform and preventing the seal member from falling out from the seal groove, and the narrow section is of uniform width in the depth direction of the seal groove.