Lg Chem, Ltd

Lg Energy Solution, Ltd.

Cha-Hun Ku

Sung-Jong Kim

Je-Jun Lee

Sung Jong Kim

Sang-Kyun Lee

Pil-Kyu Park

Dong-Myung Kim

Sung-Min Hwang

Soon-Ho Ahn

Byungkyu Jung

Min-Wook Kim

Sun-Ju Park

Jin-Gon Kim

Sang Kyun Lee

Jae-Hyun Lee

Do-Gyun Kim

Duk-Hyun Ryu

Je Jun Lee

Seok-Koo Kim

Hang-June Choi

Seok Jin Kim

Jung Kwan Pyo

Sook Yun

Han-Ho Lee

Joon-Sung Bae

Min-Chul Jang

Tai-Jin Jung

Soo-Hyun Ha

Baeck-Boem Choi

Su-Taek Jung

Duck Hoe Kim

Ju Hyeon Cho

Vin-Na Jo

Yong-Su Choi

Chang-Wan Koo

Young-Soo Kim

Kun Ha Park

Kyung Su Oh

Tae-Kyu Kim

Jeong-In Yu

Sun-Sik Shin

Kyung-Su Oh

Won-Nyeon Kim

Jung-Ah Lee

Jae-Dong Chang

Byeong-Kyu Lee

Jun-Yong Jeong

Kyung-Jae Lee

Sang-Bong Nam

Min-Cheol Choi

Jung-Kwan Pyo

Ju-Hyeon Cho

Duck-Hoe Kim

Jin-Hee Yeon

Seok-Jin Kim

Sei-Lin Yoon

A pressurizing short-circuit inspection apparatus, which includes compression plates arranged with a predetermined separation distance therebetween so that at least one of secondary battery cells is inserted therein, the compression plates being moved in ±X-axis direction to adjust the separation distance; and a pressurizing short-circuit inspection assembly having a cell pressing unit configured to press a predetermined region of a body of the secondary battery cell and a power supply unit provided in contact with an electrode lead of the secondary battery cell to apply a test voltage, the pressurizing short-circuit inspection assembly being respectively mounted to the compression plates to be movable along ±Y-axis direction, is provided.

Pressurizing short-circuit inspection apparatus for detecting low-voltage defective pouch-type secondary battery cell

An electrode transferring apparatus of a battery cell includes: a transferring body configured to transfer at least one electrode of the battery cell; and an electrode gripper mounted to the transferring body to be vertically movable, the electrode gripper being configured to grip at least one electrode of the battery cell and having a rounded end in contact with the at least one electrode.

Electrode transfer device for battery cell

Provided is a lithium metal secondary battery ensuring electrode-separator adhesive strength and a method for fabricating the same. The lithium metal secondary battery according to the present disclosure includes a negative electrode, a separator and a positive electrode, the negative electrode including a lithium metal foil as a negative electrode material, wherein a nano imprint pattern structure is formed on a lithium metal foil surface which is a surface of the negative electrode facing the separator, and the negative electrode and the separator are adhered to each other.

Lithium metal secondary battery including lithium metal foil negative electrode with nano imprint pattern structure adhered to separator, and method of manufacturing the same

The present disclosure provides a method for manufacturing a unit cell including the steps of: preparing an electrode and a separator individually, wherein the separator includes a porous polymer substrate and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a mixture of inorganic particles with a binder polymer; applying a lamination solvent to the surface of the separator to be bound with the electrode; and carrying out lamination of the electrode with the separator before the lamination solvent is dried. The method according to the present disclosure can solve the problem of shrinking of a separator occurring in the conventional lamination process.

Method for lamination of battery cell using solvent and chamber device for carrying out lamination

The present disclosure relates to a method for injecting an electrolyte to a pouch secondary battery which includes the steps of: interposing an electrode assembly between a first metal laminate film and a second metal laminate film forming a pouch casing, and sealing the edges of each of the films with an electrolyte inlet left therein, thereby providing a pouch secondary battery; mounting the pouch secondary battery between a first jig and a second jig, which are installed in a jig stand so as to have a controllable interval and form a gap space, with the electrolyte inlet facing up, and injecting an electrolyte through the electrolyte inlet; loading the jig stand to a vacuum chamber; increasing the width of the gap space by moving the first and the second jigs so that the area occupied by the electrolyte may be localized in the lower part of the pouch casing, and then forming vacuum atmosphere; and moving the first and the second jigs while maintaining the vacuum atmosphere so that the width of the gap space may be reduced gradually and the liquid surface of the electrolyte may be lifted gradually to a position higher than the top of the electrode assembly.

Method for injecting electrolyte to pouch secondary battery using gap-controlling jig

Disclosed is an apparatus for manufacturing an electrode or a solid electrolyte for an all-solid-state battery. The apparatus for manufacturing an electrode or a solid electrolyte for an all-solid-state battery includes a first roller member configured to press an electrode or a solid electrolyte for an all-solid-state battery, and a second roller member located to be spaced apart from the first roller member to press the electrode or the solid electrolyte for an all-solid-state battery. The first roller member and the second roller member are disposed at opposite locations based on the electrode or the solid electrolyte for an all-solid-state battery.

Apparatus for manufacturing electrode or solid electrolyte for all-solid-state battery

An electrode assembly for a secondary battery having reduced internal resistance while adhesion between a separator and an electrode is maintained and having improved electrolyte impregnation the electrode assembly including a separator having a processed area having undergone a corona discharging process and a non-processed area.

Electrode assembly including electrode and separator partially bonded to each other

A unit cell for a secondary battery includes a central electrode having a first polarity, a pair of separators respectively laminated on both surfaces the central electrode, and an upper electrode and a lower electrode respectively laminated on the pair of separators and having a second polarity, wherein the separator has a patterned adhesive force.

Unit cell for secondary battery with improved wettability and method for manufacturing the same

Disclosed is a jellyroll-type electrode assembly including a first electrode, a second electrode, and a separator interposed between the electrodes folded together, in which the first electrode has a non-coating part and a first electrode tab attached onto the non-coating part, the non-coating part representing a part of the first electrode not coated with an active material, and the at least double-folded-layer separator is disposed between the first electrode tab and the second electrode.

Jellyroll-type electrode assembly and secondary battery comprising the same

The present disclosure relates to an electrochemical device and a battery module having improved anti-vibration. In the electrochemical device and the battery module according to one embodiment of the present disclosure which are mounted in electrically powered tools or other equipments, tap holders for providing vibration-resistance are provided on the outer surface of a cathode tap or an anode tap exposed to the outside of the electrochemical device or the battery module, thereby dispersing external force applied to the cathode tap or the anode tap to prevent the cathode tap or the anode tap from being damaged, and immobilizing the cathode tap or the anode tap to prevent an external short circuit, and eventually to improve the stability of the electrochemical device and the battery module.

Electrochemical device and battery module having improved vibration-resistance

A seal tape capable of preventing an electrode assembly from moving in a secondary battery, and a secondary battery using the same are disclosed. The seal tape for a secondary battery is attached to the outer surface of the electrode assembly which is received in a battery case, and includes a first adhesive layer having an adhesive surface adhered to the outer surface of the electrode assembly, a second adhesive layer having an adhesive surface at a side opposite to the adhesive surface of the first adhesive layer so as to adhere to an inner surface of the battery case, and a protective layer formed on the second adhesive layer, wherein the protective layer is entirely or partially removed by reating with an electrolyte of the secondary battery.

Seal tape and secondary battery using the same

A secondary battery having no beading portion includes an electrode assembly having a cathode plate and an anode plate arranged with a separator being interposed therebetween, a battery case having an upper can configured to accommodate the electrode assembly and an electrolytic solution in an inner space thereof and have an open top and an open bottom, the top of the upper can being bent inwards, and a lower sealing member coupled to the bottom of the upper can to seal the bottom of the upper can, and a cap assembly having a top cap protruding on an uppermost portion thereof to form a cathode terminal, a safety vent located below the top cap and configured to change a shape when an inner pressure of the battery case increases, and a gasket surrounding rims of the top cap and the safety vent.

Secondary battery and method for manufacturing the same

The present disclosure refers to a lithium secondary battery comprising LiNiOin a cathode active material so as to improve the phenomenon that the capacity retention ratio decreases at initial cycles when using an anode active material selected from the group consisting of Si, SiC, SiO(0&#x3c;x&#x3c;2), Sn, SnO, Sb, Ge and a mixture thereof. The lithium secondary battery according to the present disclosure can substantially improve the decrease of a capacity retention ratio during initial cycles.

Cathode additives for lithium secondary battery with high capacity

An electrode assembly and a battery are provided. The electrode assembly may be effectively fixed inside a can as a pressure-sensitive adhesive tape attached to an outer circumferential surface of the electrode assembly is formed into a 3D shape by an electrolyte. Thus, the electrode assembly does not move and rotate inside the can due to external vibration or impact and damage of welded regions of a tab or disconnection of inner circuits can be prevented.

Electrode assembly

Disclosed herein is a cap assembly loaded on an open upper end of a cylindrical container of a battery configured to have a structure in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, the cap assembly including a safety vent connected to a current interruptive device (CID) for safety, a protruding top cap connected to the safety vent along an outer circumference thereof, and a gasket mounted at an outer circumference of the top cap, wherein a cathode tab is attached to a cathode active material-uncoated portion of the cathode by welding and the gasket is provided with at least one groove depressed upward from an outer circumference of a lower end of the gasket for easy welding between the CID and the cathode tab at the time of manufacturing the battery.

Cap assembly having improved manufacturing processability and cylindrical battery comprising same

Growing community of inventors

Daejeon, South Korea

Cha-Hun Ku