Lg Chem, Ltd

Lg Energy Solution, Ltd.

Do-Hyeon Kim

Jun-Yeob Seong

Tae-Young Kang

Sung-Chun Yu

Duck-Hee Moon

Hwa-Joong Kim

Yong-Joon Choi

Sang-Ho Park

In-Sun Yoo

Young-Soo Oh

Disclosed herein is a battery cell with improved durability and safety for the swelling phenomenon. The battery cell can include an electrode assembly having an electrode tab, an electrode lead electrically connected to the electrode tab, a pouch case configured to accommodate the electrode assembly therein and having at least one perforation hole formed in a portion thereof, and a lead film configured to have a portion interposed between the electrode lead and an inner surface of the pouch case and having at least one insert protrusion formed on an outer surface thereof to be inserted into the perforation hole.

Battery cell, battery module and vehicle

Disclosed is a terminal cover, which covers a terminal of a battery pack and is detachably mounted to the battery pack. The terminal cover includes a cover body coupled to a pack case of the battery pack by hook coupling, and a detachment guide unit provided at both side surfaces of the cover body to allow the hook coupling of the cover body to be released based on pressing by a user.

Terminal cover and battery pack comprising same

Disclosed is a disassembling tool for a secondary battery. The disassembling tool includes a first rotation member configured to be rotatable and to allow a nut to be coupled thereto; a connection shaft coupled to the first rotation member; a second rotation member coupled to the connection shaft to transmit a rotational force to the connection shaft; and a housing, in which the connection shaft is disposed. The housing is inclined with respect to a virtual horizontal line parallel to a ground surface.

Disassembling tool and battery module using disassembling tool

A secondary battery pack according to an aspect of the present disclosure includes: a cell assembly including a plurality of secondary batteries; a pack case having an internal space for accommodating the cell assembly; an electrode terminal connected to the cell assembly and protruding to the outside of the pack case; and a terminal cover configured to cover an upper portion and partial side surfaces of the electrode terminal, and to be detachable from the pack case by including a hooking protrusion that is hook-coupled to and released from a stopper that is provided in the pack case. In particular, the terminal cover further includes a jig hole configured to allow a cover separating jig to be inserted from outside to inside, and the hooking protrusion is provided at an internal area of the terminal cover to be released from the stopper when the cover separating jig inserted through the jig hole pushes the hooking protrusion.

Secondary battery pack

An electrical assembly includes a plate unit disposed on a battery module, at least one electrical equipment loaded on the plate unit, and a pack terminal loaded on the plate unit. The pack terminal includes a terminal bolt configured to be contacted and connected to a connector of an external device; and a nut configured to be fastened to the terminal bolt. The electrical assembly further includes at least one bus bar loaded on the plate unit and configured to electrically connect the pack terminal to a module terminal of the battery module. At a side portion of the plate unit, an insert portion that is open to allow the nut to be inserted therein is formed, and a slot portion is formed to fix the nut inserted through the insert portion at a predetermined position.

Electrical assembly and battery pack including electrical assembly

Disclosed is a battery pack for a vehicle, which includes a pack case forming an appearance of the battery pack, a static electricity inducing pattern forming a conductor pattern of a predetermined form on a BMS circuit board provided in the pack case and a discharge terminal connected to the static electricity inducing pattern, and a cable connector for both communicating and grounding, which is composed of a pack connector having a first connection portion configured to be connected to a data transmission terminal on the BMS circuit board and a second connection portion configured to be connected to the discharge terminal, and a vehicle connector connected to the pack connector by a harness cable and installed to the pack case to be exposed out through a connector mounting hole formed through the pack case.

Battery pack for vehicle and vehicle comprising battery pack

The present disclosure provides a battery module capable of stably maintaining contact of electrode leads while having a simple structure and high assemblability. The battery module of the present disclosure includes: a cell assembly including a plurality of secondary batteries and a plurality of cartridges, the secondary batteries being vertically arranged and including electrode leads, the cartridges being vertically stacked to accommodate the secondary batteries in an inner space thereof; and a sensing assembly mounted on a front side of the cell assembly and including an insulation housing formed of an electrically insulative material and a sensing bus bar formed of an electrically conductive material, the sensing assembly being coupled to the electrode leads to sense voltages of the secondary batteries, wherein the insulation housing includes a plurality of penetration holes vertically spaced apart from each other to receive the electrode leads therethrough, and a plurality of housing slant portions arranged in the penetration holes and sloped at a predetermined angle from a horizontal direction.

Battery module

Disclosed is a battery pack, which includes a plurality of stacked cells; a board assembly including interconnect circuit boards (ICBs) arranged corresponding to cell leads; an ICB cover detachably coupled to the board assembly; and a magnet installed at the ICB cover and coupled to the ICB by a magnetic force thereof with the cell lead being interposed therebetween, wherein the lead is closely fixed to the ICB by means of the magnetic force acting between the ICB and the magnet.

Battery pack having improved cell lead fixing structure

Provided is a secondary battery pack including: a cell assembly including a secondary battery, and a stacking frame supporting the secondary battery and stacked in a direction; a pack case having an internal space for accommodating the cell assembly, and having a through hole in internal and external directions; an electrode terminal electrically connected to the cell assembly and protruding to an outer part of the pack case by passing through the through hole; a bonding part filling a gap between the through hole and the electrode terminal in order to form an adhesive layer; and a bonding cover attached to the through hole of the pack case while surrounding a boundary of the electrode terminal above the bonding part.

The present disclosure relates to a battery module, which includes: a housing including a first housing and a second housing, which are coupled to each other to form a accommodation space; a plurality of secondary batteries accommodated in the accommodation space; a bolt including a screw portion, which has screw threads formed on at least a portion of an outer circumferential surface thereof, and a bolt head arranged at an end of the screw portion, the bolt being configured to fasten the first housing and the second housing to each other by being mounted such that the screw portion penetrates the first housing to be screw-coupled to the second housing, and that the bolt head is caught by the first housing; and an O-ring mounted to be interposed between the first housing and the bolt head, wherein the O-ring includes: a hollow pierced such that the screw portion is inserted therein; and a recognition protrusion formed to protrude in a radial direction of the bolt head as compared with the bolt head.

Growing community of inventors

Daejeon, South Korea

Do-Hyeon Kim