METHOD TO CONTROL LITHIUM-ION STORAGE BATTERY Russian patent published in 2010 - IPC H01M10/46 H02J7/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to devices intended for measuring parametres of lithium-ion storage batteries (LISB) and balancing the charge of lithium-ion elements (LIE) in storage battery and can be used in operation of LISB with hard or impossible access for servicing purposes. In compliance with this invention, proposed device to control LISB comprises LIEs interconnected in series. Note that every LIE is connected with outputs of appropriate adjusting element and via electric power dissipating element, for example a resistor. Note also that input of every adjusting element is connected with output of appropriate measuring unit via appropriate logical unit. Besides every measuring unit has its one input connected to appropriate LIE while another input, whereto mean LIE voltage is fed, is connected via resistive divider with storage battery, resistive dividers being connected in series. Note that proposed device additionally comprises sets of comparators and electronic gates. Note also that outputs of electronic gates are connected with extreme output terminals of resistive divider of appropriate LIE. Note also that control input of electronic gate is connected with output of appropriate comparator with its input connected to outputs of appropriate LIE. Besides current transducer is connected in circuit between every LIE and adjusting element, transducer output being connected with additional input of measuring unit. Note that additional current transducer is connected in series with LISB, transducer output being connected with first input of additional measuring unit with its second input connected with LISB. Note that output of additional measuring unit is connected with additional inputs of every logical unit.

EFFECT: increased of LIE charge balancing, expanded performances, ease of manufacture.

1 dwg, 1 ex