2005 · 31 citations · 0 references
EngineeringElectrical EngineeringCircuit TheoryElectrochemical EngineeringPower ElectronicsBattery SystemsBattery TechnologyCharging SystemsElectrochemical CellsRecharging SystemsState Of Charge ManagementBattery Cell BalancingBattery ManagementBattery Management ArchitectureBattery Voltage CharacterizationDischarging ProcessesLithium-ion BatteriesLithium-ion Battery SystemsVoltage Management
When charging and discharging battery cells in series connection, it is recommended that a deteriorated cell displaying unbalanced voltage should be removed without interrupting the charging and discharging processes. The authors have proposed a novel circuit whereby battery cells are serially connected, which controls multiple switches by measuring the cell voltages. This circuit makes balanced charging and discharging possible even for the cells containing a deteriorated cell. Their experiments on the proposed circuit's performance using lithium-ion cells obtained satisfactory results.