Method of charging and discharging battery and power source apparatus adopting the same
First Claim
1. A method of charging and discharging a battery having a plurality of electrochemical cells which dissolve in active material from the electrodes into the electrolyte in the discharging process and deposit said active material on the surfaces of said electrodes in the charging process, said method comprising:
- preparing said battery by preparing a plurality of battery blocks, each of which is composed of a plurality of said electrochemical cells connected in series with each other;
a step of fully discharging any one battery block among said plurality of battery blocks by transferring the charges of said one battery block to at least one of the other battery blocks through a boosting means; and
repeating said step so that all of said plurality of battery blocks subsequently experience at least one cycle of full discharge within a predetermined period of time.
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Accused Products
Abstract
A battery is divided into a plurality of battery blocks. An amount of current flowing into a coil is rapidly changed by a switching element so as to raise the output voltage of one battery block. The power of the battery block is transferred to another battery block by utilizing the thus-raised voltage. This operation is subsequently repeated for each battert block. Thus, all the blocks are subsequently completely discharged for achieving the equalization of the amount of charge of each block.
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Citations
15 Claims
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1. A method of charging and discharging a battery having a plurality of electrochemical cells which dissolve in active material from the electrodes into the electrolyte in the discharging process and deposit said active material on the surfaces of said electrodes in the charging process, said method comprising:
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preparing said battery by preparing a plurality of battery blocks, each of which is composed of a plurality of said electrochemical cells connected in series with each other; a step of fully discharging any one battery block among said plurality of battery blocks by transferring the charges of said one battery block to at least one of the other battery blocks through a boosting means; and repeating said step so that all of said plurality of battery blocks subsequently experience at least one cycle of full discharge within a predetermined period of time. - View Dependent Claims (2, 3, 4)
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5. A power source apparatus comprising:
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electrochemical cells for dissolving an active material from the electrodes into the electrolyte in a discharging process and depositing said active material on surfaces of said electrodes in a charging process; battery blocks each of which is composed of a plurality of said electrochemical cells connected in series with each other; a battery composed of a plurality of said battery blocks connected to each other; a booster means which is connected to any given battery block among said plurality of blocks for raising an output voltage of said given battery block; a charge transfer passage for connecting an output of said booster means to at least one of the other battery blocks; and a control circuit for controlling said booster means and the charges transferred through said charge transfer passage; whereby each of said battery blocks is fully discharged within a predetermined period of time. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification