Sk on Co., Ltd.

Lg Energy Solution, Ltd.

Semes Co., Ltd.

Young Ha Kim

Ji Hyung Kim

Sang Bin Lee

Ho Jin Hwang

Sang Kyun Lee

Min Soo Park

Eui Jin Hong

Young Hoon Hong

Seong Hyun Kim

Kang Suk Lee

Jeong Yeong Park

Kiyoung Kwark

Se Jeong Choi

Jeoung Eun Park

To achieve the above objects, a battery case for a secondary battery, the battery case being a pouch type battery case that is configured to accommodate an electrode assembly therein, the electrode assembly including stacked electrodes and separators therein, the battery case according to an embodiment of the present invention including a first cup part and a second cup part, each formed as a respective recess extending downward from a top surface of a pouch film; a bridge formed between the first cup part and the second cup part and having a constant width and height; and two complement parts disposed outside of respective first and second longitudinal ends of the bridge, each of the complement parts protruding upward from the top surface of the pouch film.

Battery case for secondary battery and pouch type secondary battery

A secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate, a lower case in which the electrode assembly is accommodated and electrode tabs are provided on sidewalls opposing each other, an upper case coupled to the lower case, and an outer casing disposed to surround the lower case and the upper case. The electrode assembly is provided with a first uncoated electrode portion extending from the first electrode plate and a second uncoated electrode portion extending from the second electrode plate, and the first and second uncoated electrode portions are bent and connected to the electrode tab of the lower case.

Secondary battery

A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer formed on the cathode current collector, and an anode including an anode current collector and an anode active material layer formed on the anode current collector. The anode active material layer has an area larger than that of the cathode active material layer. The anode active material layer includes an overlapping portion overlying the cathode active material layer in a planar direction and a margin portion around the overlapping portion. The margin portion has an electrical resistance greater than that of the overlapping portion.

Lithium secondary battery and method of fabricating anode for lithium secondary battery

An apparatus for manufacturing a secondary battery includes a first guide in which one side of one end is recessed to define a concave space, wherein, when a battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push a folding part of the battery case to an outside; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.

Apparatus and method for manufacturing secondary battery

A pouch type battery case for a secondary battery, which accommodates an electrode assembly, in which electrodes and separators are stacked, includes a first cup part and a second cup part, which are recessed in a pouch film, respectively; an accommodation part, which is provided in a longitudinal direction of edges of the first cup part and the second cup part, which face each other, between the first cup part and the second cup part and in which one side of the electrode assembly is configured to be accommodated; inclined parts extending from opposing ends, respectively, of the accommodation part and provided to be recessed in the pouch film; and line forming parts extending linearly from outer ends, respectively, of the respective inclined parts and provided to be recessed in the pouch film in the same direction as the longitudinal direction of the accommodation part.

A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer formed on the cathode current collector, and an anode including an anode current collector and an anode active material layer formed on the anode current collector. The anode active material layer has an area larger than that of the cathode active material layer. The cathode active material layer includes a central portion and an outer portion surrounding the central portion, and the outer portion has a specific capacity less than that of the central portion.

Lithium secondary battery

Disclosed are an apparatus and a method for liquid-treating a substrate. The method for liquid-treating a substrate includes a first treatment liquid supplying operation of supplying a first treatment liquid to a treatment location of the substrate, and a wetting operation of, after the first treatment liquid supplying operation, supplying a wetting liquid onto the substrate, wherein the wetting operation includes a simultaneous supply operation of supplying the wetting liquid to the first location while the first treatment liquid is supplied, and wherein the first location is a location deviating from the treatment location. Accordingly, the surface of the substrate may be prevented from being dried while the treatment liquid is converted to a wetting liquid.

Growing community of inventors

Daejeon, South Korea

Young Ha Kim