Method For Manufacturing Lithium Secondary Battery

Abstract: The present invention relates to a method for manufacturing a lithium secondary battery the method comprising the steps of: preparing a battery cell comprising a positive electrode a negative electrode and an electrolyte the positive electrode including a lithium rich manganese based oxide wherein the content of manganese among all metals excluding lithium exceeds 50 mol% and a ratio (Li/Me) of the number of moles of lithium to the number of moles of the all metals excluding lithium exceeds 1; and activating the battery cell by charging and discharging at least once wherein the activating step includes a step of terminating the charging when a ratio (Y/X) of the charge capacity (mAh/g) (Y) of a secondary battery to the estimated capacity (mAh/g) (X) of a positive electrode active material at a point at which all lithium ions contained in the lithium rich manganese based oxide form a Li/Li dumbbell structure satisfies 1.10 Y/X ??? 1.13.

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#	Name	Date
1	202517060694-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [25-06-2025(online)].pdf	2025-06-25
2	202517060694-STATEMENT OF UNDERTAKING (FORM 3) [25-06-2025(online)].pdf	2025-06-25
3	202517060694-REQUEST FOR EXAMINATION (FORM-18) [25-06-2025(online)].pdf	2025-06-25
4	202517060694-PROOF OF RIGHT [25-06-2025(online)].pdf	2025-06-25
5	202517060694-PRIORITY DOCUMENTS [25-06-2025(online)].pdf	2025-06-25
6	202517060694-POWER OF AUTHORITY [25-06-2025(online)].pdf	2025-06-25
7	202517060694-FORM 18 [25-06-2025(online)].pdf	2025-06-25
8	202517060694-FORM 1 [25-06-2025(online)].pdf	2025-06-25
9	202517060694-DRAWINGS [25-06-2025(online)].pdf	2025-06-25
10	202517060694-DECLARATION OF INVENTORSHIP (FORM 5) [25-06-2025(online)].pdf	2025-06-25
11	202517060694-COMPLETE SPECIFICATION [25-06-2025(online)].pdf	2025-06-25
12	202517060694-FORM 3 [10-11-2025(online)].pdf	2025-11-10