SECONDARY BATTERY MANAGEMENT METHOD, SECONDARY BATTERY CHARGING METHOD, SECONDARY BATTERY MANAGEMENT DEVICE, SECONDARY BATTERY MANAGEMENT SYSTEM, SECONDARY BATTERY MANAGEMENT PROGRAM, ELECTRODE GROUP, AND UNIT CELL

• Main Authors: FUJITA ARIYOSHI, SUGIYAMA NOBUKATSU, MORITA TOMOKAZU
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

To provide a method for managing a secondary battery that enables safe and appropriate charging of the secondary battery by effectively utilizing a chargeable time.SOLUTION: In a method for managing a secondary battery according to an embodiment, a charging pattern for scheduled charging is set on the basis of estimated data including an estimation result of the internal state of a secondary battery based on the measurement results of a current and voltage of the secondary battery, target data including a target time for charging the secondary battery in scheduled charging, and relational data indicating a relationship between the internal state of the secondary battery and the charging condition of the secondary battery and the rate of deterioration of the secondary battery. The charging pattern is set to a charging pattern in which the deterioration rate does not exceed a threshold and the secondary battery is charged for the target time.SELECTED DRAWING: Figure 5 【課題】充電可能な時間を有効活用して安全かつ適切に二次電池を充電可能にする二次電池の管理方法を提供すること。【解決手段】実施形態の二次電池の管理方法では、二次電池の電流及び電圧の計測結果に基づいた二次電池の内部状態の推定結果を含む推定データ、実施される予定の充電において二次電池を充電する目標時間を含む目標データ、並びに、二次電池の内部状態及び二次電池の充電条件のそれぞれと二次電池の劣化速度との関係が示される関係データに基づいて、実施される予定の充電における充電パターンを設定する。充電パターンは、劣化速度が閾値を超えず、かつ、目標時間の間二次電池が充電される充電パターンに、設定される。【選択図】図５