Lg Chem, Ltd

Lg Energy Solution, Ltd.

Jong-Soo Ha

Ha-Neul Yoo

Yun-Ki Choi

Sang-Il Son

Jung-Soo Kang

Young-Bo Cho

Chan-Min Park

Se-Ho Kim

Hang-June Choi

Hyun-Young Cho

Bo-Hyon Kim

Jung-Been You

Jung-Hang Lee

Hun Cha

Se-Won Kim

Min-Hee Park

A method of setting a cell pressure range includes based on performance data of a secondary battery cell, determining, as Pcell_min, a minimum pressure for realizing performance of the secondary battery cell, and determining, as Pcell_max, a maximum pressure for realizing performance of the secondary battery cell; and a second operation of determining, as Pmodule_min, a minimum pressure at which a cell stack may be supported and fixed, and determining, as Pmodule_max, a maximum pressure at which the cell stack may be pressed without damage to a module housing in end of life (EOL) of secondary battery cells, wherein an intersection range of the Pcell_min to the Pcell_max and the Pmodule_min to the Pmodule_max is set as the cell pressure range.

Method of setting cell pressure range for secondary battery module

According to an embodiment of the present disclosure, a battery module includes: a cartridge including an accommodation space therein; a plurality of battery cells placed in the accommodation space; a cooling unit configured to cool the battery cells; and a heat exchange unit configured to exchange heat with the cooling unit, wherein the heat exchange unit includes: a heat exchange chamber having an inner space; a lower cooling flow path located in the heat exchange chamber and through which a cooling fluid flows; an upper cooling flow path located above the lower cooling flow path and through which the cooling fluid supplied from the lower cooling flow path flows; and a connection flow path configured to supply the cooling fluid flowing in the lower cooling flow path to the upper cooling flow path.

Battery module, battery pack comprising same, and vehicle

A battery cell having an electrode assembly having a hollow structure with a hexagonal prism-shaped hole at a center, of which an exterior of the electrode assembly is in a shape of a hexagonal prism, and a cell case in which the electrode assembly is received, of which an exterior of the cell case is in a shape of a hexagonal prism is provided.

Hexagonal column-shaped battery cell, manufacturing method therefor, and battery module comprising same

The present disclosure discloses an apparatus for estimating temperature of at least one secondary battery in a battery pack including at least one secondary battery. The battery temperature estimation apparatus according to the present disclosure is an apparatus for estimating temperature of at least one secondary battery in a battery pack including at least one secondary battery, and includes a board temperature measuring unit provided on an integrated circuit board provided in the battery pack to measure a temperature of the integrated circuit board, and a calculating unit which calculates a temperature of the secondary battery using the temperature of the integrated circuit board measured by the board temperature measuring unit and an ambient temperature of the battery pack.

Apparatus and method for estimating temperature of battery

Disclosed is a battery module, which includes a battery cell assembly including a plurality of battery cells stacked on each other along a vertical direction, a heatsink configured to cover one side of the battery cell assembly, and a pair of cooling plates connected to the heatsink to cover both side surfaces of the battery cell assembly, respectively, the pair of cooling plates having a coolant channel formed along a stacking direction of the plurality of battery cells.

Battery module, battery pack comprising battery module, and vehicle comprising battery pack

The present disclosure relates to a battery module, and a battery pack and a vehicle including the same. A battery module according to an embodiment of the present disclosure includes a cartridge including an accommodation space therein; a plurality of battery cells placed in the accommodation space; and a cooling unit configured to cool the battery cells, wherein the cooling unit includes: a cooling fin making surface contact with sides of the battery cells; a cooling plate placed below the cooling fin; and a connection member placed between the cooling fin and the cooling plate and transferring heat from the cooling fin to the cooling plate.

Battery module, battery pack and vehicle having same

Provided herein is a battery module that is capable of improving cooling efficiency despite a compact structure without using numerous members. The battery module according to the present disclosure includes a battery stack where batteries are stacked; and a battery management system, and includes a heat radiation paint coating layer that includes a heat radiation material in at least a portion of the constituting components.

Battery module including heat radiation paint coating layer

According to an aspect of the present disclosure, there is provided a cell cover for a secondary battery, which accommodates at least one secondary battery in an internal space and is mounted in a groove formed on a top surface of a cooling plate having an uneven plate shape, the cell cover including a first side plate and a second side plate facing each other to form opposite side surfaces of the internal space, a top plate forming a top surface of the internal space and connecting upper edges of the first side plate and the second side plate, and a first bottom plate extending from a lower edge of the first side plate and a second bottom plate extending from a lower edge of the second side plate to face the first bottom plate, the first bottom plate and the second bottom plate forming a bottom surface of the internal space, in which the first bottom plate and the second bottom plate are inclined downwardly at an angle with respect to a horizontal plane, respectively.

Cell cover for secondary battery having bottom surface conforming to a cooling plate, and battery module comprising same

A battery module including an array of cooling fins having different thicknesses is provided. The battery module includes: a plurality of battery units arranged in one direction; a plurality of cooling fins between adjacent battery units; and a heat sink coupled to ends of the plurality of cooling fins, wherein each cooling fin has a structure in which a pair of sub-cooling fins are face-to-face coupled to each other, and thicknesses of the plurality of cooling fins are reduced toward the side region from the central region due to a difference in a thickness of at least one of the pair of sub-cooling fins. Since heat is not accumulated at the central region, the battery module has uniform temperature distribution while being charged or discharged.

Battery module including array of cooling fins having different thicknesses

The present disclosure describes a voltage equalization apparatus for equalizing voltages of adjacent power storage unit racks included in a power storage system. The voltage equalization apparatus according to the present disclosure includes a resistor to which a current flowing from a high-voltage unit rack to a low-voltage unit rack is applied; and a circuit breaker for voltage equalization installed on a line through which the current flows.

Voltage equalization apparatus for connecting power storage unit racks and power storage system including the same

Disclosed is a unit rack for power storage having a plurality of cell modules which are series- or parallel-connected with each other; a housing for accommodating the cell modules; a receiving part of a circuit breaker, formed or installed in the housing, and having a ground clearance higher than the highest ground clearance of the cell modules; a circuit breaker received in the receiving part and connected between the connection lines; and a receiving part cover for closing the receiving part of the circuit breaker.

Unit rack for power storage and power storage apparatus comprising the same

The present disclosure describes a power storage apparatus including a housing made of a durable material and defining an installation space of a plurality of secondary batteries; a plurality of secondary batteries accommodated in the housing and connected to each other in series or in parallel; a Battery Management System (BMS) for controlling charge and discharge of the plurality of secondary batteries and monitoring an electric characteristic value thereof; and a status setting switch for setting a status of the BMS. According to the present disclosure, a power storage system may be easily configured by means of a simple BMS setting. Also, if any one of the power storage apparatuses is not working properly, the power storage apparatus with a problem may be easily distinguished by the naked eyes of a manager, which facilitates easy maintenance and repair.

Growing community of inventors

Daejeon, South Korea

Jong-Soo Ha