An ECU calculates a surface potential of a negative electrode active material relative to a lithium reference potential, according to a battery model for calculating lithium concentration distribution inside the negative electrode active material. The ECU calculates a voltage drop amount associated with charging of a battery, using a charging current to the battery and a reaction resistance, and calculates a negative electrode potential by subtracting the voltage drop amount from the surface potential. The ECU corrects the negative electrode potential, using an SOC of the battery, an average current in a charging period of the battery, and an integrated current in the charging period.
Secondary battery system and method for controlling secondary battery
2021-12-07
Patent
Electronic Resource
English
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
Secondary battery system and method for controlling secondary battery
European Patent Office | 2024
|SECONDARY BATTERY SYSTEM AND METHOD FOR CONTROLLING SECONDARY BATTERY
European Patent Office | 2019
|SECONDARY BATTERY SYSTEM AND METHOD FOR CONTROLLING SECONDARY BATTERY
European Patent Office | 2022
|CONTROL SYSTEM FOR SECONDARY BATTERY AND METHOD FOR CONTROLLING SECONDARY BATTERY
European Patent Office | 2015
|European Patent Office | 2015
|