| abstract |
A method of regenerating a lithium secondary battery according to the present invention, the lithium secondary battery includes an electrode assembly and a battery case, electrodes and separators including a positive electrode and a negative electrode are alternately combined with each other and laminated in the electrode assembly, and the battery case The body includes an accommodating portion for accommodating the electrode assembly, and the method includes: a lithium resupply step, in which a lithium resupply electrode is further provided in the secondary battery, and the positive electrode is set as a counter electrode, and the lithium resupply electrode is set is a working electrode, so that the positive electrode is filled with lithium ions through the lithium resupply electrode; and a negative electrode discharge step, in the negative electrode discharge step, after the lithium ion is resupplied to the positive electrode through the lithium resupply step, the lithium resupply electrode is set as a counter electrode , and the negative electrode is set as the working electrode to fully discharge the negative electrode to the discharge limit. |