Device and method for calculating value of rechargeable battery
First Claim
1. A value calculation device for a rechargeable battery used with a plurality of battery cells restrained by a restraint member, comprising:
- a detector for detecting battery data obtained as said rechargeable battery is electrically charged and discharged;
a first measurement unit for measuring a battery parameter of said rechargeable battery after said rechargeable battery has said restraint member removed therefrom and the plurality of battery cells has a portion thereof replaced and is thus disassembled when said rechargeable battery is subsequently re-restrained by said restraint member and thus reused, said measuring being based on said battery data detected after said rechargeable battery is re-restrained; and
an evaluation unit for evaluating from said battery parameter a value of said rechargeable battery reused, said battery parameter at least including an internal resistance of said rechargeable battery.
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Abstract
A rechargeable battery is used with a plurality of battery cells restrained by a restraint member. After the rechargeable battery has the restraint member removed therefrom and is thus disassembled when the rechargeable battery is subsequently re-restrained by the restraint member and thus reused an internal resistance measurement unit measures the rechargeable battery'"'"'s internal resistance based on battery data detected after the rechargeable battery is re-restrained. At least for the internal voltage, from a value thereof as measured after the battery is re-restrained an evaluation unit evaluates a value of the rechargeable battery that is reused.
26 Citations
10 Claims
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1. A value calculation device for a rechargeable battery used with a plurality of battery cells restrained by a restraint member, comprising:
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a detector for detecting battery data obtained as said rechargeable battery is electrically charged and discharged; a first measurement unit for measuring a battery parameter of said rechargeable battery after said rechargeable battery has said restraint member removed therefrom and the plurality of battery cells has a portion thereof replaced and is thus disassembled when said rechargeable battery is subsequently re-restrained by said restraint member and thus reused, said measuring being based on said battery data detected after said rechargeable battery is re-restrained; and an evaluation unit for evaluating from said battery parameter a value of said rechargeable battery reused, said battery parameter at least including an internal resistance of said rechargeable battery. - View Dependent Claims (2, 3, 4, 9)
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5. A value calculation method for a rechargeable battery used with a plurality of battery cells restrained by a restraint member, comprising the steps of:
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detecting battery data after said rechargeable battery has said restraint member removed therefrom and is thus disassembled and the plurality of battery cells has a portion thereof replaced and when said rechargeable battery is subsequently re-restrained by said restraint member and thus reused, said battery data being detected as said rechargeable battery is electrically charged and discharged; measuring a battery parameter of said rechargeable battery after said rechargeable battery is re-restrained; and an evaluating a value of said rechargeable battery reused, said evaluating being based on said battery parameter measured in the step of measuring, said battery parameter at least including an internal resistance of said rechargeable battery. - View Dependent Claims (6, 7, 8, 10)
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Specification