METHOD AND SYSTEM FOR CHARGING LARGE SECONDARY BATTERY
PROBLEM TO BE SOLVED: To shorten at least charging time for full charge of a secondary battery to which a battery module is connected in parallel. SOLUTION: In a method of charging a large secondary battery 1 to which a plurality of battery modules 11 comprising a number of cells 12 are connected in...
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| creator | MORINO HIROKI MATSUMOTO YASUHIRO OMOTO HIDEO MOTOHIRA SHIGERU |
| description | PROBLEM TO BE SOLVED: To shorten at least charging time for full charge of a secondary battery to which a battery module is connected in parallel. SOLUTION: In a method of charging a large secondary battery 1 to which a plurality of battery modules 11 comprising a number of cells 12 are connected in parallel by charging equipment 2, a plurality of pieces of charging equipment charge the large secondary battery, parallel connection between at least one battery module and other battery modules is disconnected to divide the large secondary battery into a plurality of sets, and then the battery module of each set is charged separately by different charging equipment. A charging current value of a set of battery modules of which deterioration is large is calculated from a capacity or a voltage value so that the charging time of all the sets coincides and the charging time of a set of battery modules of which deterioration is large coincides with a charging time of a set of battery modules of which deterioration is small. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: In a method of charging a large secondary battery 1 to which a plurality of battery modules 11 comprising a number of cells 12 are connected in parallel by charging equipment 2, a plurality of pieces of charging equipment charge the large secondary battery, parallel connection between at least one battery module and other battery modules is disconnected to divide the large secondary battery into a plurality of sets, and then the battery module of each set is charged separately by different charging equipment. A charging current value of a set of battery modules of which deterioration is large is calculated from a capacity or a voltage value so that the charging time of all the sets coincides and the charging time of a set of battery modules of which deterioration is large coincides with a charging time of a set of battery modules of which deterioration is small. 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| subjects | BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | METHOD AND SYSTEM FOR CHARGING LARGE SECONDARY BATTERY |
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