Lg Chem, Ltd

Lg Energy Solution, Ltd.

Sung Hoon Bae

Dae Sik Chung

Su Han Park

Seok Je Kim

Seung Cheol Kim

Hye Jin Kim

Dae Geun Gu

A method for predicting a lifespan of a battery cell of the present invention includes: virtually dividing a capacity of a battery cell, which is a measurement object for lifespan prediction, into two or more capacity parts, and measuring charge and discharge cycle data for each of the capacity parts; correcting the charge and discharge cycle data by reflecting storage degeneration a positive electrode active material; and predicting a lifespan of the battery cell, based on the corrected charge and discharge cycle data.

Method of predicting lifespan of battery cell reflecting storage characteristics of positive electrode active material

The present disclosure relates to an apparatus and a method for manufacturing a battery cell, and more particularly, to an apparatus and a method for manufacturing a battery cell, wherein a pressing jig provided with a semi-elliptical pressing part presses the battery cell to remove air bubbles from the battery cell.

Apparatus and method for manufacturing battery cell

A cell taping apparatus includes a plate provided with an accommodation space, into which a plurality of unit cells are configured to be stacked and accommodated, on a top surface thereof; a guide which extends upward from the top surface of the plate to define the accommodation space therein and through which at least one pair of first slots are defined to pass downward from an upper end of the guide at opposing left and right sides of the guide that face each other; and a tape, which has a length equal to or greater than a width of the plate, of which opposing ends respectively pass through a pair of the at least one pair of first slots, and which is seated on the top surface of the plate so that an adhesion surface of the tape faces away from the top surface of the plate.

Cell taping apparatus and method

An electrode assembly includes first and second electrodes stacked in a stacking direction with a separator therebetween. The first electrode includes a first coating portion coated with a first electrode active material and a first non-coating portion at a side of the first coating portion without being coated with the first electrode active material, and the second electrode includes a second coating portion coated with a second electrode active material and a second non-coating portion at a side of the second coating portion without being coated with the second electrode active material. The first non-coating portion and the second non-coating portion are not overlapped in the stacking direction.

Electrode, electrode assembly and secondary battery containing the same

A charge/discharge pressurizing device includes a first pressurizing jig configured to pressurize one surface of an electrode lead of a battery cell, a second pressurizing jig configured to pressurize an other surface of the electrode lead facing the one surface of the electrode lead, a guide configured to be disposed to be spaced apart from the one surface of the first pressurizing jig by a predetermined distance, and a first pressurizing jig controller configured to be connected to the first pressurizing jig and to move the first pressurizing jig toward the one surface of the electrode lead.

Growing community of inventors

Gyeonggi-do, South Korea

Sung Hoon Bae