Lg Chem, Ltd

Lg Energy Solution, Ltd.

Seung Jae You

Hyang Mok Lee

Ji Won Park

Myung Hoon Ko

Jin Ho Ban

Woo Yong Lee

Ye Hoon Im

Min Su Kim

WonChan Park

According to the present disclosure, there is provided an electrode assembly comprising (a) a structure in which one kind of radical unit is repeatedly disposed, the one kind of radical unit having a same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, the at least two kinds of radical units each having a same number of electrodes and separators which are alternately disposed and integrally combined.

Electrode assemby and radical unit for the same

A fabricating method of an electrode assembly according to the present invention includes forming a radical unit having a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one, and stacking at least one radical unit one by one to form a unit stack part.

Fabricating method of electrode assembly and electrochemical cell containing the same

Electrode assembly and radical unit for the same

An electrode assembly manufactured by a third method other than a stack folding method or a stack method, and an electrochemical device including thereof are disclosed. The electrode assembly includes at least one radical unit. The radical unit has a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one.

Electrode assembly and electrochemical cell containing the same

A method of manufacturing an electrode assembly includes a first step of forming one kind of a radical unit or at least two kinds of radical units having an alternately stacked structure of a same number of electrodes and separators; and a second step of forming a cell stack part by repeatedly stacking one kind of the radical units, or by stacking at least two kinds of the radical units. Edge of the separator is not joined with that of adjacent separator. One kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked together or a repeating structure in which the four-layered structure is repeatedly stacked, and at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.

Method of manufacturing electrode assembly

Disclosed herein is a plate-shaped secondary battery configured to have a structure in which an electrode assembly of a cathode/separator/anode structure is mounted in a battery case in a sealed state by thermal welding, wherein a protuberance is formed at an outer edge sealed portion of an electrode assembly receiving part of the battery case such that the protuberance protrudes upward and downward from the sealed portion, and the protuberance extends along the outer edge of the electrode assembly receiving part continuously in a curved line or in a straight line in a state in which the protuberance is adjacent to the electrode assembly receiving part.

Growing community of inventors

Daejeon, South Korea

Seung Jae You