METHOD FOR PREPARING BATTERY OF ELECTRIC VEHICLE BY USING GROUP TEST

PURPOSE: A method for preparing a battery of an electric vehicle is provided which improves its yield by reducing inferior rate of bicells constituting the battery. CONSTITUTION: The method comprises steps of: (i) preparing plural bicells constituting a battery; (ii) dividing bicells into an adequat...

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description PURPOSE: A method for preparing a battery of an electric vehicle is provided which improves its yield by reducing inferior rate of bicells constituting the battery. CONSTITUTION: The method comprises steps of: (i) preparing plural bicells constituting a battery; (ii) dividing bicells into an adequate number of groups and forming one group cell per group by stacking bicells; (iii) testing if each group cell is bad or not; and (iv) coupling up the group cells without defect resulted from the test of the step (iii) to prepare a battery for an electric vehicle, wherein each group cell is pouch formed.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title METHOD FOR PREPARING BATTERY OF ELECTRIC VEHICLE BY USING GROUP TEST
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