Power supply unit, distributed power supply system and electric vehicle loaded therewith
First Claim
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1. A power supply unit comprising:
- at least one storage battery comprising a plurality of circuits connecting in series, each of the plurality of circuits including a first cell group and a second cell group connected in parallel;
wherein said second cell group utilizes an electrolyzable electrolytic solution, or generates recombinable gas; and
a charger/discharger for controlling charge/discharge of said storage battery adapted to charge said storage battery up to a voltage at which the electrolytic solution of said second cell group is electrolyzed, or to a voltage at which the generated gas is recombined.
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Abstract
A power supply unit, a distributed power supply system and an electric vehicle loaded therewith, capable of charge/discharge operation are disclosed. A first cell group is connected in parallel to a second cell group in which the electrolytic solution can be electrolyzed or the generated gas can be recombined. A plurality of the parallel circuit pairs are connected in series, and the series circuit is connected with a charger/discharger to constitute the power supply unit. The charger/discharger charges the power supply unit up to a voltage at which the electrolytic solution of the second cell group is electrolyzed or the generated gas is recombined.
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Citations
10 Claims
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1. A power supply unit comprising:
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at least one storage battery comprising a plurality of circuits connecting in series, each of the plurality of circuits including a first cell group and a second cell group connected in parallel;
wherein said second cell group utilizes an electrolyzable electrolytic solution, or generates recombinable gas; and
a charger/discharger for controlling charge/discharge of said storage battery adapted to charge said storage battery up to a voltage at which the electrolytic solution of said second cell group is electrolyzed, or to a voltage at which the generated gas is recombined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
the first cell group of each of the plurality of circuits is connected to the first cell group of other circuits in series; the second cell group of each of the plurality of circuits is connected to the second cell group of other circuits in series; and
the first cell group and the second cell group of each of the plurality of circuits are connected with an intermediate terminal.
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10. A power supply unit according to claim 5, wherein
the first cell group of each of the plurality of circuits is connected to the first cell group of other circuits in series; -
the second cell group of each of the plurality of circuits is connected to the second cell group of other circuits in series; and
the first cell group and the second cell group of each of the plurality of circuits are connected with an intermediate terminal.
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Specification