FLOW BATTERY AND STACK

• Main Authors: WU ZIONGWEI, LIU JUN, YIN XINGRONG, CHO KIYOSHI, XIAO BO, WU XIONGWEI, XIE XUANZHI
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a stack which can improve the efficiency of the electricity-energy conversion of a flow battery.SOLUTION: The stack includes: a first end plate; a second end plate; and at least one battery module set between the first end plate and the second end plate. Each battery module includes: a first flow passage end plate; a second flow passage end plate facing the first flow passage end plate; and a single battery laminate group set between the first and second flow passage end plates. The single battery laminate group includes at least three battery laminate groups assembled in a sealed manner. The first flow passage end plate has an arcuate flow passage, and the second flow passage end plate has an arcuate flow passage. both arcuate flow passages have a flow passage hole. The flow passage holes lead to at least three battery laminate groups assembled in the sealed manner. The electrolyte solution in the arcuate flow passages flows into the at least three battery laminate groups assembled in the sealed manner through the flow passage holes of the arcuate flow passages, and returns to the arcuate flow passages.SELECTED DRAWING: Figure 1 【課題】フロー電池の電気エネルギー変換効率を向上させることができるスタックを提供する。【解決手段】スタックは、第１の端板と、第２の端板と、第１の端板と第２の端板との間に設置された少なくとも１つの電池モジュールとを含み、電池モジュールのそれぞれは、第１の流路端板と、第１の流路端板に対向して設置された第２の流路端板と、第１の流路端板と第２の流路端板の間に設置された単一電池積層群とを含み、単一電池積層群は、少なくとも３つの密封して組み立てられた電池積層群を含み、第１の流路端板には弓形流路が設置され、第２の流路端板には弓形流路が設置され、弓形流路のいずれにも流路孔が設置され、流路孔は、いずれも少なくとも３つの密封して組み立てられた電池積層群と連通し、弓形流路中の電解液は、弓形流路中の流路孔を介して少なくとも３つの密封して組み立てられた電池積層群に流れ込み、弓形流路に還流する。【選択図】図１