Method and apparatus for charging battery
AssigneeLG Chem, Ltd.
InventorsJiyoung Park, Pil Kyu Park, Kwi Sub Yun, So Ra Lee
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Abstract
A method of charging a battery including a plurality of cells, the method including charging the plurality of cells at a plurality of C-rates, respectively; calculating a voltage change of each of the plurality of cells and a slope of the voltage change of each of the plurality of cells; and performing discharging multiple times in a section where a deviation between the slopes of the voltage changes of the plurality of cells is equal to or larger than a predetermined reference value.
Claims8
A method of charging a battery including a plurality of cells, the method comprising:
- charging the plurality of cells at a plurality of C-rates, respectively;
- calculating a voltage change (dV/dQ) of each of the plurality of cells and a slope of the voltage change of each of the plurality of cells;
- and
- performing discharging multiple times in a section where a deviation between the slopes of the voltage changes of the plurality of cells is equal to or larger than a predetermined reference value.
An apparatus for charging a battery including a plurality of cells, wherein:
- the apparatus is configured to charge the plurality of cells at a plurality of C-rates, respectively,
- calculate a voltage change (dV/dQ) of each of the plurality of cells and a slope of the voltage change of each of the plurality of cells, and
- perform discharging multiple times in a section where a deviation between the slopes of the voltage changes of the plurality of cells is equal to or larger than a predetermined reference value.
Dependencies are inferred from the claim text.