LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

The present disclosure relates to a lithium secondary battery including a protective layer and a volume-expandable layer, a method for manufacturing the lithium secondary battery, and a system for evaluating the safety of the lithium secondary battery. According to the present disclosure, it is possible to inhibit growth of lithium dendrite primarily by forming a protective layer. It is also possible to inhibit growth of lithium dendrite secondarily by forming a volume-expandable layer. Therefore, it is possible to provide a lithium secondary battery fundamentally prevented from a short-circuit.