Lg Energy Solution, Ltd.

Hang June Choi

Jeong Oh Moon

Cha Hun Ku

Jin Yong Park

Jung Kwan Pyo

Ho June Chi

Tai Jin Jung

Kun Ha Park

Dal Mo Kang

Sung Won Seo

Mun Chae Joung

An electrode includes an active material coating portion coated with an electrode active material on at least one surface of an electrode collector; and an active material non-coating portion which is at one side of the active material coating portion, is not coated with the electrode active material, and includes at least one slit extending from one end to another end thereof, wherein in each slit of the at least one slit, a hole passes through a point at which the respective slit and the active material coating portion meet each other.

Electrode and electrode assembly

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

Disclosed is a weld portion inspection method using thermal image sensing, wherein the method includes heating the weld portion using Joule heat; and determining whether the weld portion is defective based on a temperature increase pattern of the weld portion by the heating.

Weld portion inspection method using thermal image sensing

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

To solve the above problem, a pouch forming apparatus according to an embodiment of the present invention includes: a die in which a forming space is recessed inward from a top surface thereof; a partition wall partitioning the forming space into first and second forming spaces; a stripper disposed above the die and configured to descend to contact the die with the pouch film therebetween to fix the pouch film to be seated on a top surface of the die; and an electromagnetic force generation part disposed above the forming space and configured to generate electromagnetic force and configured to apply the electromagnetic force to the forming space.

Growing community of inventors

Daejeon, South Korea

Hang June Choi