Lg Energy Solution, Ltd.

Lg Chem, Ltd

Shanjin Optoelectronics (suzhou) Co., Ltd.

Cj 4dplex Co., Ltd.

Shanjin Optoelectronics (nanjing) Co., Ltd.

Samsung Electronics Co., Ltd.

Jin Yong Park

Jeong Oh Moon

Ho June Chi

Ji Young Kim

Kyun Il Rah

Tae Woo Kim

Kyung Woo Kim

Taek Geun Nam

Eungki Lee

Sang Hyun Nah

Jhin Ha Park

Hee Jun Jin

Young Gon Kim

Hye Min Yu

Kyung Mo Kim

Won Chul Lee

Gae Sung Kim

Hyun Soo Lee

Jung Hoon Lee

Jae Sung Choi

Eung Jin Jang

Jae Min Choi

Hang June Choi

Sung Won Seo

Deok Woo Park

Hyeon Ki Yun

Yeong Rae Chang

Heon Kim

Ji Hoon Park

Dal Mo Kang

Young Tae Kim

Byung Sun Lee

Sung Hyun Nam

Kyung Ki Hong

Jong Hyun Jung

Jeong Geun Kim

Jun Cheol Shin

Ki Jun Jung

Yeon Soo Kim

Young Bum Cho

Dongyeon Kim

Jae Il Ryu

Min Woo Hwang

Hyung Koo Kang

Eun Gyu Shin

Young Sik Kim

Heejun Jin

You Kyeong Kim

Hangjune Choi

Dong Min Park

Eung Ki Lee

Si Young Park

Min Yeong Jo

Jung Geun Kwon

Jinhak Kong

Yeon Ok Jung

Chan Youn Kim

Seong Min Lim

Yong Su Ju

Khyung Sik Cho

The present invention relates to an ultrasonic welding apparatus including a horn unit including a horn wherein the horn is configured to contact a target to be welded and a vibrator configured to apply vibration to the horn; an anvil unit including an anvil having a first flat surface on which the target to be welded is configured to be placed and a support portion configured to support the anvil in a rotatable state; and a welding main body configured to have the horn unit and the anvil unit fixed thereto, wherein the anvil is rotated in a state of being supported by the support portion such that the first flat surface of the anvil is parallel to a welding surface of the horn, whereby parallelism between the horn and the anvil may be easily achieved, and welding quality may be improved.

Ultrasonic welding apparatus including rotatable anvil and welding method using the same

The present invention relates to a battery module comprising: a plurality of battery cells disposed to overlap each other in a thickness direction thereof; a battery case configured to accommodate the battery cells and having a structure of which a lower portion is opened; and a heat dissipation member comprising a cover plate coupled to the lower portion of the battery case to support the battery cell and a heat dissipation body provided on one surface of the cover plate, on which the battery cell is supported, to dissipate heat generated in the battery cell, wherein the heat dissipation body comprises a first heat transfer material provided to be connected to a center of one surface of the cover plate in a longitudinal direction of the battery cell and a second heat transfer material provided on both portions of the first heat transfer material and having a structure aligned in a plurality of rows in the longitudinal direction of the battery cell, and the second heat transfer materials are aligned so that an interval therebetween is gradually narrowed from a center toward both ends of the battery cell to gradually improve heat dissipation performance from the center toward both the ends of the battery cell.

Battery module and method for manufacturing the same

The present invention relates to a battery cell that can include an electrode assembly configured with two or more unit stacks connected to each other in series or in parallel, a battery case configured to receive the electrode assembly therein, and an insulative protection member configured to protect an electrode tab portion of the unit stacks. The overall length of the battery case can be three or more times the overall width of the battery case. A positive electrode lead and a negative electrode lead can extend outwards from the battery case protruding in opposite directions. A plurality of unit stacks can be used to implement a long battery cell, and a connection portion at which the plurality of unit stacks are connected is reinforced to improve safety of the battery cell.

Battery cell including protection member

A pouch case manufacturing device pack according to an embodiment of the present disclosure includes a fixing unit that fixes a pouch film of a laminated sheet for battery cells; and a punch unit that presses the pouch film so as to form a storage part on the pouch film. The punch unit includes a central punch unit and an outer peripheral punch unit surrounding the central punch unit, the central punch unit presses the central portion of the pouch film, and the outer peripheral punch unit presses the outer peripheral portion of the pouch film. In in a vertical cross section parallel to the pressing direction of the punch unit, a radius of curvature of a corner of the central punch unit is larger than a radius of curvature of a corner of the outer peripheral punch unit.

Pouch case manufacturing device and manufacturing method of pouch case

Discussed is an underbody for a vehicle including a tray member fastened to a lower portion of a vehicle body frame and including a receiving portion having a structure with an open lower surface to accommodate a battery module; and a cover member to cover the open lower surface of the receiving portion, wherein the cover member includes a flow path to circulate a refrigerant fluid.

Battery cooling arrangement in an underbody of a vehicle

The present disclosure relates to a battery module including a busbar structure for adhesion with an electrode lead. The battery module can include a battery cell stack having a plurality of stacked battery cells, electrode leads protruding from the battery cell stack, a busbar electrically connected to the electrode leads, and a busbar frame on which the busbar is mounted. The busbar can be formed of a tongs part and a fixing part for connecting and fixing the tongs part. The electrode leads can be mounted between the tongs part of the busbar. The battery module can be manufactured through the steps of mounting a busbar in an opening part of a busbar frame, inserting an electrode lead between the tongs part of the busbar, closely adhering the busbar and the electrode lead through a jig, and removing the jig.

Battery module and manufacturing method thereof

A battery cell has asymmetrically formed electrode leads, and a battery module including the same. The spatial efficiency and the mechanical strength of the battery module are improved.

Battery cell having asymmetric electrode leads, and battery module comprising same and having reinforced mechanical strength

A battery cell has asymmetrically formed electrode leads, and a battery module includes the same. The spatial efficiency and the mechanical strength of the battery module are improved.

Battery pack comprising reinforcement pole penetrating inside thereof, and automotive vehicle comprising same

The present application relates to an optical film and a method for producing a polarizing plate. The present application can provide an optical film satisfying optical and mechanical durability required in a polarizing plate effectively and capable of forming a polarizing plate without causing bending when applied to a display device, and a method for producing a polarizing plate to which the optical film is applied. The present application can provide an optical film capable of realizing the required optical and mechanical durability without causing bending even in a polarizing plate applied to a thin display device and/or a thin polarizing plate, and a method for producing a polarizing plate to which the optical film is applied.

Production method of optical film

The present application relates to a polarizing plate. The present application can provide a polarizing plate having excellent optical and mechanical durability even when it is formed in a thin thickness or is applied to a thin display device and without causing bending or twisting when applied to a display device.

Polarizing plate

A battery pack includes a battery cell stack formed by a plurality of stacked battery cells, a battery module housing configured to wrap the other outer surfaces of the battery cell stack excluding a first surface and a second surface, from which electrode leads protrude, a water tank configured to supply a coolant to the battery cell or the battery module housing, and a battery pack case configured to receive a plurality of battery module housings. The battery pack case includes a pack case space portion located adjacent to the first surface and a crossbeam located adjacent to the second surface, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Battery pack including thermal spread inhibition structure

A punch pin hole inspection apparatus and method uses a punch and a die capable of checking defects or damage, specifically pin holes or microcracks, due to shaping immediately after finishing shaping a laminate sheet into a battery case using the punch.

Punch pin hole inspection apparatus and method using punch and die

Provided is a method for manufacturing a polarizing plate, comprising a step of irradiating an optical laminate with ultraviolet rays having an emission wavelength band of 380 nm to 410 nm. The optical laminate sequentially comprises a first base film, a first adhesive layer, a linear polarizer, a second adhesive layer, a second base film and a reverse dispersion liquid crystal layer. The first adhesive layer and the second adhesive layer each comprise a photosensitizer for initiating a curing reaction in a wavelength band of 350 nm to 410 nm, and the ultraviolet rays are irradiated on the first base film side of the optical laminate.

Method for manufacturing polarizing plate

The present application relates to a polymer film and a method for producing a polarizing plate. The present application can provide a polymer film satisfying optical and mechanical durability required in a polarizing plate effectively and capable of forming a polarizing plate without causing bending when applied to a display device, and a method for producing a polarizing plate to which the polymer film is applied. The present application can provide a polymer film capable of realizing the required optical and mechanical durability without causing bending even in a polarizing plate applied to a thin display device and/or a thin polarizing plate, and a method for producing a polarizing plate to which the polymer film is applied.

Production method of polarizing plate

Provided is a polarizing plate and a display device. The polarizing plate has excellent durability against an external environment, for example, moisture, due to a protective film of a polarizer, and can prevent color distortion upon observation with polarized sunglasses, and a display device comprising the polarizing plate.

Polarizing plate and display device

Growing community of inventors

Daejeon, South Korea

Jin Yong Park