Lg Chem, Ltd

Lg Energy Solution, Ltd.

Ho Chol Nam

Hak In Kim

Dong Hyun Kim

Seog Jin Yoon

Sung Ju Hong

Hyung Ku Yun

Young Bum Cho

Dong Cheol Lee

Tae Wook Kim

Han Chul Kim

Soo Jun Ahn

Hyoung Chul Yoon

Seokjin Lee

The present invention relates to a temperature condition diagnosis system and method for diagnosing a temperature abnormal state of a battery cell or module according to a relative temperature change of the battery cell using a difference in cell or module surface temperature compared to a battery management system (BMS) temperature sensor.

System and method for diagnosing abnormal state of temperature of battery cell by using BMS temperature sensor

A battery pack in accordance with an exemplary embodiment, which is booted when coupled to an external apparatus, includes: a connector which is a member configured to connect the external apparatus and the battery pack; and a booting circuit configured to start operation of the battery pack when the battery pack and the external apparatus are coupled. The connector includes: a (+) output terminal connected to a (+) output terminal of the battery pack; a coupling check terminal configured to check whether the external apparatus and the battery pack are coupled; a data transceiving terminal configured to tranceive data between the external apparatus and the battery pack; and a (&#x2212;) output terminal connected to a (&#x2212;) output terminal of the battery pack.

Battery pack having fastening recognition function

A battery pack including a communication terminal insulation function with an external system connected to the battery pack and a control method thereof.

Battery pack having communication terminal isolation function

The present invention relates to an apparatus and method for providing a charging voltage, and more particularly, to an apparatus and method for providing a charging voltage, which rapidly provide a stable charging voltage to a corresponding cell through a cell balancing voltage source that is one of two separate charging voltage sources, when cell balancing is necessary.

Charging voltage supply apparatus and supply method

The present disclosure relates to a method and system for stabilizing a battery through cell balancing of a battery pack, and more particularly, to a method and system for performing battery cell balancing and determining a control situation through a feedback for the cell balancing, thereby improving reliability for the battery cell balancing and enabling a proactive measure for a battery abnormality.

Battery cell balancing method and system

The present invention relates to a battery pack charging control device that wakes up a micro control unit (MCU) in operation in a sleep mode, while a battery pack is in a constant voltage charged state, the battery pack charging control device including an analog front end (AFE) for changing before the MCU operates in the sleep mode, an over-voltage protection level value to a higher value than a current value, generating an over-voltage trip signal and delivering the over-voltage trip signal to the MCU in operation in the sleep mode to control to wake up the MCU in operation in the sleep mode, when an increased voltage value of the battery pack due to connection of an external charger is equal to or greater than the changed over-voltage protection level value.

Battery pack charge control device and method

The present invention relates to a cell balancing system and method, and more particularly, to a cell balancing system and method capable of supplying a charging voltage through two separately configured charging voltage sources and stably performing cell balancing by supplying a proper charging voltage to a corresponding cell through an individually configured switch in each cell, when the cell balancing is necessary.

Cell balancing system and control method

A battery pack including: a battery cell assembly in which a plurality of chargeable and dischargeable battery cells are stacked; and a pair of cooling members configured to eliminate heat generated during charging and discharging of the battery cells, wherein the cooling members may include first and second cooling members positioned on first and second surfaces of the battery cell assembly perpendicular to a direction in which the battery cells are stacked, and an inner surface of each of the first cooling member and the second cooling member may be formed with a thermal contact portion with a shape of being in close contact with an outer surface of each of the first and second surfaces of the battery cell assembly for thermal conduction, is provided.

Battery pack comprising member of edge cooling type

Disclosed herein is a battery pack including two or more plate-shaped battery cells arranged in plane such that electrode terminals of the battery cells are aligned in one direction, a pack frame including two or more battery cell receiving parts surrounding outer circumferences of the battery cells in a state in which upper and lower surfaces of the battery cells arranged in plane are opened, a pack frame including a receiving part to receive the two or more plate-shaped battery cells, the receiving part surrounding outer circumferences of the battery cells in a state in which upper and lower surfaces of the battery cells arranged in plane are opened, a protection circuit module (PCM) electrically connected to the electrode terminals to control operation of the battery pack, a middle mold to receive the PCM, the middle mold being loaded on the sealed surplus portions, an electrically insulative member applied into a space defined by the sealed surplus portions and the pack frame and onto the middle mold and the PCM, and a label to cover the battery cells, the pack frame, and the electrically insulative member.

Battery pack having electric insulating member

Disclosed herein is a battery pack configured to have a structure in which a protection circuit module (PCM) is mounted at a sealed surplus part of a battery cell at which electrode terminals of the battery cell are located, wherein the PCM includes a protection circuit board (PCB), a safety element, and an electrically insulative module case for surrounding the PCB and the safety element, the module case includes an upper case and a lower case coupled to each other through an assembly type fastening structure for receiving the PCB and the safety element, the module case, the PCB, and the electrode terminals are provided with first openings and second openings having a sufficient size to allow a first joint fastening member and a second joint fastening member to extend therethrough, and the PCB is received between the upper case and the lower case such that the PCB is electrically connected to the electrode terminals of the battery cell in a state in which the PCB is coupled to the electrode terminals of the battery cell by the first joint fastening member and the second joint fastening member.

Battery pack having PCM case

Disclosed herein is a secondary battery pack including a battery cell having a cathode terminal and an anode terminal formed on one surface including a sealed portion to seal the battery cell and a protection circuit module (PCM) including a protection circuit board (PCB) having a protection circuit formed thereon, an external input and output terminal electrically connected to the protection circuit, a connector electrically connected to the external input and output terminal, and an electrically insulative PCM case in which the PCB is mounted, wherein the PCM is loaded on the sealed portion in a state in which the PCM is electrically connected to the battery cell and the connector is formed on the PCM such that the connector does not protrude outward from the secondary battery pack.

Growing community of inventors

Cheongju-si, South Korea

Ho Chol Nam