MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To reduce influence on performance even if metallic foreign matters are mixed. SOLUTION: The manufacturing method of a nonaqueous electrolyte secondary battery having an electrolyte composition containing a chelate compound having partial structure represented by chemical formulas (1)-(3) has a conditioning process conducting in a condition satisfying ct/V≥1.08×10-3in charging of one cycle. [In the formula, c is the concentration of the chelate compound in an electrolyte (mol/dm3); t is the accumulated time (h) of a period when a positive electrode potential as a reference of lithium is 3.5 V or more and the positive electrode potential or less in a full charge state; V is the average potential (V) of the positive electrode; c is 0.004 (mol/dm3) or more; t is 0.75 (h) or more; V is 3.5≤V≤3.8]. COPYRIGHT: (C)2008,JPO&INPIT