Patent ID: 9466859
Filing Date: 2016-10-11
CPC Classification: H01M,Y02E,Y02P,Y10T

Claim Text:
1. A method for assembling a Lithium Battery pack, wherein said Lithium Battery pack comprises a plurality of lithium cells, each said lithium cell having a dimension of about 10 cm or more, comprising the steps of: entering one or more of said plurality of lithium cells into a pouch; partly sealing the pouch with the one or more lithium cells; entering the pouch with the one or more lithium cells into a drying oven; resting the pouch in the drying oven for a defined time; removing the pouch from the drying oven; transferring the dried pouch through a transfer tunnel to an electrolyte filling station; filling the pouch with electrolyte; and sealing the pouch, wherein only selected critical assembly steps are performed under dry room conditions and assembly steps other than the selected critical assembly steps are performed under environment conditions other than dry room conditions; wherein the selected critical manufacturing steps consist of the steps of entering, resting and removing the pouch from the drying oven, transferring the dried pouches through a transfer tunnel to an electrolyte filling station and filling the pouch with electrolyte, and wherein each one of the dry room conditions in the drying oven, transfer tunnel, and electrolyte filling station is kept separately from each other for performing the selected critical assembly steps.