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US 2022/0065944 A1Published application
Apparatus and Method for Determining Error of a Battery Cell
AssigneeLG Energy Solution, Ltd.
InventorHyeon Jin Song
Life of this patent
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Abstract
A battery cell error determining apparatus including: a magnetic field measurement unit configured to measure a magnetic field generated by a current flowing in a battery cell, and a control unit configured to calculate a capacity of the battery cell by using a current calculated by the magnetic field measured by the magnetic field measurement unit. The control unit determines an error of the battery cell by using the capacity of the battery cell.
Claims20
A battery cell error determining apparatus comprising:
- a magnetic field measurement unit configured to measure a magnetic field generated by a current flowing in a battery cell;
- and
- a control unit configured to:
- calculate a capacity of the battery cell based on an amount of current derived from the magnetic field measured by the magnetic field measurement unit;
- and
- determine an error of the battery cell based on the capacity of the battery cell.
3 more elements
A battery pack comprising:
- a plurality of battery cells connected in series;
- and
- a respective battery cell error determining apparatus included in each battery cell,
- wherein, for each given battery cell, the battery cell error determining apparatus included therein comprises:
- a current measurement unit configured to measure a current flowing through the battery cell;
- and
- a control unit configured to calculate a capacity of the battery cell based on the current,
- wherein the control unit is configured to determine an error of the battery cell based on the capacity of the battery cell.
5 more elements
A battery cell error determining method comprising:
- measuring a magnetic field generated by a current flowing in a battery cell;
- measuring a capacity of the battery cell by accumulating a current derived from the measured magnetic field;
- and
- determining an error of the battery cell based on the measured capacity of the battery cell.
1 more element
Dependencies are inferred from the claim text.