SEALED BATTERY MANUFACTURING METHOD AND INSPECTION DEVICE
1 Assignment
0 Petitions
Accused Products
Abstract
A method for manufacturing a sealed battery (10) includes the steps of: measuring a voltage of the sealed battery (10) when a charging current of a predetermined value or more is caused to flow to the sealed battery (10) for a predetermined time after initial charging of the sealed battery (10); and determining whether a battery case (11) of the sealed battery (10) is damaged or not based on a change in the measured voltage. When an inclination of the voltage increases in a time change of the measured voltage, it may be determined that a recess (12) is present in the battery case (11) of the sealed battery (10).
6 Citations
18 Claims
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1-9. -9. (canceled)
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10. A sealed battery manufacturing method comprising the steps of:
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measuring a voltage of the sealed battery when a charging current of a predetermined value or more is caused to flow to the sealed battery for a predetermined time after initial charging of the sealed battery; and determining whether a recess is present or not in a battery case of the sealed battery based on an inclination of the voltage in a time change of the measured voltage. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An inspection device comprising:
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measurement means for measuring a voltage of a sealed battery when a charging current of a predetermined value or more is caused to flow to the sealed battery for a predetermined time after initial charging of the sealed battery; and determination means for determining whether a recess is present or not in a battery case of the sealed battery based on an inclination of the voltage in a time change of the voltage measured by the measurement means. - View Dependent Claims (18)
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Specification