SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a secondary battery, the capacity of which can be increased by further applying a fluid replacement structure to a PFSA membrane and making the sulfur loading amount of a lithium sulfur battery larger.SOLUTION: A secondary battery of the present invention is characterized in that a fluid replacement separation film is also included in a lithium sulfur secondary battery containing a sulfur cathode, a lithium anode and an ionomer membrane.