Operation method for secondary battery and secondary battery device
First Claim
1. An operation method for a secondary battery, in which charge operation and discharge operation are repeated, wherein said charge operation has at least two operation modes including first and second operation modes in which said secondary battery is charged to predetermined charge end voltages different from each other, and either of the two operation modes can be selected according to a control signal from the outside of said secondary battery.
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Abstract
For charging a secondary battery, at least two operation modes including first and second operation modes, in which the secondary battery is charged to predetermined charge end voltages different from each other, are established. Both life and capacity of the battery can be maximized by a user selecting either of the two operation modes, or switching between the two operation modes automatically with a timer device, or according to a temperature of the battery, state of health thereof, or internal pressure thereof.
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Citations
21 Claims
- 1. An operation method for a secondary battery, in which charge operation and discharge operation are repeated, wherein said charge operation has at least two operation modes including first and second operation modes in which said secondary battery is charged to predetermined charge end voltages different from each other, and either of the two operation modes can be selected according to a control signal from the outside of said secondary battery.
- 3. An operation method for a secondary battery, in which charge operation and discharge operation are repeated, wherein said charge operation has at least two operation modes including first and second operation modes in which said secondary battery is charged to predetermined charge end voltages different from each other, and the two operation modes are switched to each other according to a preset schedule.
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5. A secondary battery device, comprising:
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a secondary battery capable of being charged and discharged;
a charger for charging the secondary battery, the charger operating in first and second operation modes in which said secondary battery is charged to predetermined charge end voltages different from each other, and the charge end voltage in said first operation mode being set higher than the charge end voltage in said second operation mode; and
an operation mode switching device allowing the operation modes of said charger to be switched. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A secondary battery device, comprising:
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a secondary battery capable of being charged and discharged;
a charger for charging the secondary battery, the charger operating in first and second operation modes in which said secondary battery is charged to predetermined charge end voltages different from each other, and the charge end voltage in said first operation mode being set higher than the charge end voltage in said second operation mode;
a time measuring device; and
a timer device for switching the operation modes of said charger based on a time acquired from the time measuring device and a schedule previously stored. - View Dependent Claims (19, 20, 21)
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Specification