Lg Energy Solution, Ltd.

Jun Kyu Park

Jeong Min Ha

Jun Yeob Seong

Hyun Beom Kim

Duck Sik Park

Yong Jin Kim

Gi Man Kim

Sung Cheul Cho

Hyoung Rae Kim

Sang Wook Yim

Hyun Chul Ha

Sung Jun Ahn

Yong Jin Cho

Go Eun Lee

Jin Ki Han

Jeong Taik Lee

In Chan Choi

Ki Taek Jung

Jung Woo Kim

Min Hae Kim

Jae Kwang Jung

Sang Eun Jun

Sae Eun Lee

Seung Jae Won

A secondary battery case includes a recess part recessed downward, and a sealing part provided around the recess part when the secondary battery case is unfolded. At least portions of the sealing part are attached to each other to seal inner surfaces of the recess part from an outside. A secondary battery includes an electrode assembly and the secondary battery case. The recess part of the secondary battery case has a width that corresponds to a thickness of the electrode assembly.

Secondary battery case, and secondary battery

A pouch-type secondary battery and a method of manufacturing same are capable of completely protecting a metal layer from moisture or air by forming an insulating coating layer including a conformal coating layer on the metal layer exposed at a cut surface of a battery case. The method includes a first step of preparing a battery case including an upper case and a lower case by cutting a laminate sheet including an outer coating layer, a metal layer, and an inner coating layer; a second step of receiving an electrode assembly between the upper case and the lower case; a third step of forming a sealing portion by contacting outer peripheries of the upper case and the lower case; and a fourth step of forming a conformal coating layer on a side surface of the sealing portion so as to prevent exposure of the metal layer.

Pouch-type secondary battery and method of manufacturing the same

A method for calculating the process capacity at a specific temperature of a lithium secondary battery includes a correction to a process capacity (Q) at a specific temperature (T) is performed using a value (Q&#x2212;Q) obtained by subtracting the charge capacity (Q) at the time of the shipping charge from the discharge capacity (Q) measured at a discharge temperature (T). A system for calculating a process capacity of a lithium secondary battery is provided.

Method for calculating process capacity of lithium secondary battery

A battery module including a plurality of battery cells that are sequentially stacked, each of the battery cells including an electrode assembly including a plurality of electrode plates and a plurality of electrode tabs withdrawn from the plurality of electrode plates, a pouch configured to receive the electrode assembly, and an electrode lead connected to the plurality of electrode tabs, the electrode lead extending from an extension part of the pouch so as to be withdrawn to the outside through a withdrawal port is provided. In order to secure the distance between the extension part of the pouch of one battery cell, among a plurality of adjacent battery cells, and the electrode lead of another battery cell, the extension part is provided with a bent part that is bent at a predetermined angle relative to the direction in which the plurality of battery cells are stacked.

Battery module

Growing community of inventors

Daejeon, South Korea

Jun Kyu Park