Method for managing charge/discharge of secondary battery

摘要

A method for managing a charge/discharge operation of a secondary battery is disclosed. The present invention enables a secondary battery to demonstrate an excellent cycle life characteristic with a small deterioration in capacity during the charge/discharge cycles, and to complete the charging in a shorter time period. The managing method includes at least one step of: charging a secondary battery at a constant current until a closed circuit voltage of the battery reaches a predetermined voltage value; or charging the secondary battery at the predetermined voltage value; wherein the charging of the secondary battery is terminated before the secondary battery is brought into the fully-charged state.