Lg Energy Solution, Ltd.

Lg Chem, Ltd

Dae Sik Chung

Sung Hoon Bae

Su Han Park

Seok Je Kim

Hye Jin Kim

Young Hwan Lee

Jee Ho Kim

Jong Hwa Lee

Seung Cheol 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 technology relates to a battery cell jig including film-type pressure sensors, and a method of measuring a swelling of a battery cell using the same. According to the present invention, by using film-type pressure sensors, the volume of the measuring apparatus can be reduced, and abnormal degeneration of the battery cell by the pressure difference for each location of the battery cell can be prevented.

Battery cell jig including film-type pressure sensor, and method for measuring swelling of battery cell

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

An ESS SOH prediction method includes: a capacity virtual division step of virtually dividing a capacity of a measurement target ESS that is to predict an SOH into two or more capacity ranges; each capacity range-dependent charging/discharging cycle data measurement step of measuring charging/discharging cycle data of each capacity range divided in the capacity virtual division step; and a measurement target ESS SOH prediction step of predicting an SOH of a measurement target ESS based on charging/discharging cycle data of each actual ESS measured in the each capacity range-dependent charging/discharging cycle data measurement step.

Device and method for predicting state-of-health of battery

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

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

Daejeon, South Korea

Dae Sik Chung