Lg Energy Solution, Ltd.

Lg Chem, Ltd

Ki Hoon Paeng

Hyung Seok Han

Sang Myeon Lee

Jaewon Moon

Hyung Kyun Yu

Hyungkyun Yu

Jae Won Moon

Ki Tae Kim

Sang Suk Jung

Soo Ji Hwang

Na Yoon Kim

Ji Hoon Lee

Min Hyeong Kang

Discussed is a lamination apparatus for a secondary battery. The lamination apparatus for the secondary battery includes: an electrode transfer part configured to transfer at least one or more electrodes; a separator transfer part configured to transfer at least one or more separators; a combination part configured to combine and transfer the electrodes and the separators that are to be alternately disposed; and a position correction part configured to correct a position of an uppermost electrode disposed at an uppermost side among combined electrodes and the separators to align the position of the electrode with a set position of the separator among the combined electrodes and separators.

Lamination apparatus and method for secondary battery

A system and method facilitates measuring physical properties of an electrode specimen. Accordingly, it is possible to suppress a slipping phenomenon of an electrode specimen and prevent disconnection of a gripping portion during a tensile test for the electrode specimen by forming a tape on the gripping portion of the electrode specimen and forming a grid pattern on the surface of a pressing jig.

System for measuring physical properties of electrode specimen using masking tape, and method for measuring physical properties using same

The present invention relates to a metal foil fatigue test apparatus and a metal foil fatigue test method using the same. The metal foil fatigue test apparatus includes: a metal foil moving unit including an unwinding roll, from which a metal foil is unwound, a plurality of guide rolls configured to support and transfer the metal foil supplied from the unwinding roll, and a rewinding roll where the metal foil transferred from the guide rolls is wound; and a tensile strength measuring unit configured to measure tensile strength of the metal foil.

Fatigue testing apparatus for metallic foil and method using same

The present disclosure relates to an electrode for a secondary battery and a method of manufacturing an electrode for a secondary battery. The electrode for a secondary battery according to one embodiment of the present disclosure includes an electrode current collector including a coated portion and an uncoated portion, an active material layer located on the coated portion of the electrode current collector, a dimple portion formed on the surface of the uncoated portion, and a plastic deformation layer formed on the surface of the dimple portion.

Electrode for secondary battery and method of manufacturing electrode for secondary battery

The present disclosure relates to an electrode for a secondary battery, including: an electrode current collector including a coated portion and a non-coated portion, and an active material layer located on the coated portion of the electrode current collector, wherein at least perforated portion is formed on the boundary surface between the coated portion and the non-coated portion.

Electrode for secondary battery and method of manufacturing the same

According to the metal foil fatigue test system and metal foil fatigue test method of the present invention, the fatigue degree and lifespan of the metal foil may be easily predicted by injecting gas into the tube of a roll structure and discharging the gas to simulate charge/discharge of the electrode assembly.

System and method for fatigue testing of metal foil

A method of coating an active material for a secondary battery according to one embodiment of the present disclosure is a method of coating an active material on an electrode current collector of a secondary battery, the method comprising the steps of: disposing a guide member on each of the left and right sides based on a moving direction of the electrode current collector, and coating the active material onto the electrode current collector between the two guide members.

Active material coating method for secondary battery and coating apparatus

The present invention relates to a battery manufacturing device including: a fixed roller that moves an electrode where an active material is applied; a roller that rolls the electrode; and a stopper that is disposed between the fixed roller and the roller, and when the electrode is disconnected, moves the disconnected electrode.

Battery manufacturing method

An anode for a lithium metal battery and a lithium metal battery that contains an anode for a lithium metal battery, wherein 1) using an anode current collector including multiple holes that, independently from each other, form first pores on one side of a metal plate and form second pores having relatively larger diameters than the first pores on the other side of the metal plate, penetrate inside the metal plate, and connect the first pores and the second pores, and 2) a lithium metal layer that is formed so as to face the first pores of the anode current collector. Another embodiment of the present invention provides a lithium metal battery designed such that a separator faces the second pores (pores having relatively large diameters) of the anode current collector, using the anode for a lithium metal battery of one embodiment.

Anode for lithium metal battery and lithium metal battery comprising the same

The present disclosure relates to a manufacturing apparatus of an electrode fora secondary battery including a heating part and a manufacturing method of an electrode for a secondary battery including a heating process, which performs heating of an electrode current collector before coating with an electrode active material slurry.

Manufacturing apparatus of electrode for secondary battery comprising heating part and manufacturing method of electrode for secondary battery comprising heating process, for heating electrode current collector before coating with electrode active material slurry

The present invention relates to an ultrathin foil transferring and processing process for reducing curling and preventing folding of an ultrathin foil which may occur in the ultrathin foil transferring and processing process, and comprises: a step of coating or mounting an electrostatic-inducing material on both ends of a roll to form a charging part; a charging step of rubbing an ultrathin foil and the roll during the transferring and rolling of the ultrathin foil, to charge both ends of the ultrathin foil and the roll with positive or negative charges; and an electrostatic force applying step in which an electrostatic force is applied to both ends of the ultrathin foil simultaneously with or after the charging step and thus the curling of the ultrathin foil is reduced.

Ultrathin foil transferring and processing method capable of reducing curling of ultrathin foil and preventing folding thereof

An apparatus for manufacturing an electrolytic copper foil includes an electrolytic bath defining a cavity for receiving an electrolyte; an internal drum partially disposed in the cavity; an outer drum in contact with a surface of the internal drum; a counter electrode positioned in the cavity of the electrolytic bath and positioned to be spaced apart from the internal drum by a predetermined distance; and a power supply unit electrically connecting the internal drum and the counter electrode.

Manufacturing apparatus of electrolytic copper foil

Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between a positive electrode and a negative electrode, the pouch-shaped battery case including an outer coating layer, an inner adhesive layer, and a metal barrier layer disposed between the outer coating layer and the inner adhesive layer, the metal barrier layer including a plurality of metal layers and a heat dissipation layer interposed between the metal layers.

Pouch-shaped battery case comprising heat dissipation layer

Disclosed herein is a pouch-shaped secondary battery including a laminate sheet including an outer coating layer, a metal layer, and an inner adhesive layer, an electrode assembly, an electrolytic solution, and a heat transfer member connecting the electrode assembly to the metal layer of the laminate sheet, wherein the laminate sheet extends around the electrode assembly, the electrolytic solution, and the heat transfer member.

Growing community of inventors

Daejeon, South Korea

Ki Hoon Paeng