Battery capacity detection device of lithium ion rechargeable battery

摘要: A device detects a battery capacity of lithium ion rechargeable having at least one inflection point or more within range 10% to 90% the SOC thereof. The indicates change correlation between voltage and battery. fetches corresponding an from table, sets fetched battery-capacity as first when detection section point. current integration integrates time detect detected by reaches full charging voltage. integrated is used second capacity. adds capacities, uses added result