MANAGEMENT METHOD OF SECONDARY BATTERY, CHARGE METHOD OF SECONDARY BATTERY, MANAGEMENT DEVICE OF SECONDARY BATTERY, MANAGEMENT SYSTEM OF SECONDARY BATTERY, ELECTRODE GROUP, AND UNIT BATTERY

• Main Authors: MORITA, Tomokazu, FUJITA, Yumi, SUGIYAMA, Nobukatsu
• Format: Patent
• Language: English
• Published: 19.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

In a management method of a secondary battery of one embodiment, a charge pattern in charge planned to be executed is set based on estimation data including an estimation result of an internal state of the secondary battery based on a measurement result of an electric current and a voltage of the secondary battery, target data including a target time for charging the secondary battery in the charge planned to be executed, and relation data indicative a relation of each of the internal state of the secondary battery and a charge condition of the secondary battery to a deterioration rate of the secondary battery. The charge pattern is set to be a charge pattern in which the deterioration rate does not exceed a threshold and the secondary battery is charged during the target time.