Apparatus and method for diagnosing state of battery
AssigneeLG Energy Solution, Ltd.
InventorBo-Mi Lim
Life of this patent
Estimating the term…
Abstract
An apparatus for diagnosing a state of a battery includes a processor and memory having programmed thereon instructions that, when executed, are configured to cause the processor to obtain plurality of differential profiles representing a corresponding relationship between a differential capacity representing a change rate of a capacity of a battery with respect to a voltage of the battery and the voltage; determine a target peak located in a predetermined voltage section in each of the plurality of differential profiles; compare a plurality of voltages of a plurality of target peaks with a plurality of voltages of a reference peaks preset to correspond to each of the plurality of target peaks, and diagnose a state of the battery based on the voltage comparison result.
Claims12
An apparatus for diagnosing a state of a battery, comprising:
- a processor;
- and
- memory having programmed thereon instructions that, when executed, are configured to cause the processor to:
- obtain a plurality of differential profiles representing a corresponding relationship between a differential capacity representing a change rate of a capacity of the battery with respect to a voltage of the battery and the voltage;
- determine a target peak located in a predetermined voltage section in each of the plurality of differential profiles;
- and
- compare each of a plurality of voltages of a plurality of target peaks with a respective voltage of a plurality of voltages of reference peaks preset to correspond to each of the plurality of target peaks, and
- diagnose the state of the battery based on the voltage comparison result.
A method for diagnosing a state of a battery, comprising:
- obtaining, by a processor, a plurality of differential profiles representing a corresponding relationship between a differential capacity representing a change rate of a capacity of the battery with respect to a voltage of the battery and the voltage;
- determining, by the processor, a target peak located in a predetermined voltage section in each of the plurality of differential profiles;
- comparing, by the processor, each of a plurality of voltages of a plurality of target peaks with a respective voltage of a plurality of voltages of reference peaks preset to correspond to each of the plurality of target peaks;
- and
- diagnosing, by the processor, the state of the battery based on the voltage comparison result.
Dependencies are inferred from the claim text.