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US 2010/0304206 A1Published application
Battery pack, and battery system
OwnerTakuya Nakashima, Mamoru Aoki +1inventors
InventorsTakuya Nakashima, Mamoru Aoki, Shigeyuki Sugiyama
Life of this patent
Estimating the term…
Abstract
There are provided at least one aqueous secondary battery and at least one nonaqueous secondary battery having a smaller capacity than that of the aqueous secondary battery. The aqueous secondary battery and the nonaqueous secondary battery are connected in series to constitute a battery pack.
Claims21
1-13. (canceled)
A battery pack, comprising:
- at least one aqueous secondary battery;
- and
- at least one nonaqueous secondary battery having a smaller capacity than that of the aqueous secondary battery,
- wherein the aqueous secondary battery and the nonaqueous secondary battery are connected in series.
1 more element
A battery pack, comprising:
- at least one aqueous secondary battery;
- and
- at least one nonaqueous secondary battery having a smaller capacity than that of the aqueous secondary battery,
- wherein the aqueous secondary battery and the nonaqueous secondary battery are connected in series;
- and the terminal voltage in a fully charged state is different for the aqueous secondary battery and the nonaqueous secondary battery.
2 more elements
A manufacturing method for a battery pack charged by constant voltage charging in which a preset, constant charging voltage is outputted, the method comprising:
- a step of setting the number of aqueous secondary battery and the number of nonaqueous secondary battery having a smaller capacity than that of the aqueous secondary battery;
- and
- a step of forming a serial circuit by connecting the aqueous secondary battery and the nonaqueous secondary battery in series with the number set in the setting step;
- Wherein the setting step includes;
- the number of the aqueous secondary battery and the number of the nonaqueous secondary battery are set so that the total voltage comprising the sum of a voltage obtained by multiplying the number of the aqueous secondary battery included in the serial circuit by the terminal voltage in a fully charged state of the aqueous secondary battery, and a voltage obtained by multiplying the number of the nonaqueous secondary battery included in the serial circuit by the terminal voltage in a fully charged state of the nonaqueous secondary battery, is such that the difference between the total voltage and the charging voltage is less than the difference between the charging voltage and a voltage closest to the charging voltage, out of voltages obtained by taking an integer multiple of the terminal voltage in a fully charged state of the nonaqueous secondary battery.
2 more elements
Dependencies are inferred from the claim text.