LITHIUM SECONDARY BATTERY

摘要

Provided is a lithium secondary battery that is capable of preventing thermal runaway inside the battery due to a short circuit. Included are cathodes (3) having cathode active material that stores and discharges lithium ions, anodes (4) that store and discharge lithium ions, and a dummy laminated body (9) in which dummy cathodes (6) connected to a cathode terminal and dummy anodes (7) connected to an anode terminal are alternately laminated and that has short circuit separators (8) for insulating the dummy cathodes (6) and the dummy anodes (7); and the dummy laminated body (9)is laminated on the outside of the alternately laminated cathodes (3) and anodes (4).