Lg Energy Solution, Ltd.

Lg Chem, Ltd

Jae-Min Yoo

Jeong-O Mun

Eun-Gyu Shin

Yoon-Koo Lee

Dal-Mo Kang

Jae-Uk Ryu

Ji-Su Yoon

Su-Chang Kim

Yong-Seok Choi

Jee-Soon Choi

Hee-Jun Jin

Min-Ho Kwon

Ho-June Chi

Kyung-Mo Kim

Sung-Won Seo

Seung-hyun Kim

Eun-Ah Ju

Seung-Joon Kim

Sang-Hyun Jo

Young-Seok Lee

Hyeon-Ki Yun

Young-Bum Cho

A battery module includes a cell assembly having at least two battery cells; a module housing having an inner space accommodating the cell assembly, and including a circulation hole so that the inner space is connected to an outside; a mesh member having a mesh structure and provided in the circulation hole of the module housing; and a sealing member provided at a position facing the mesh member and configured to expand a volume at more than a predetermined temperature to seal a mesh hole of the mesh member.

Battery module, battery pack, and vehicle

A battery module prevents a fire from increasing in size and prevents electrical short circuits due to dew condensation in case of a fire. A battery module for achieving the object as described above includes a cell assembly having a plurality of battery cells, a front cover including an upper wall, a lower wall, a left wall, and a right wall, which form an inner space, and a module case accommodating the cell assembly in the inner space, coupled to the front cover, and provided with a cover portion that has a portion protruding to face at least one of the upper wall, the lower wall, the left wall, and the right wall.

Battery module, battery rack, and power storage device

A battery module including a base plate, a front cover at a first end of the base plate and a rear cover at a second end of the base plate, the rear cover spaced from the front cover in a first direction, a pair of gas discharge passages extending in the first direction, an outlet in the rear cover for each of the pair of gas discharge passages, and a mesh cover over each outlet, wherein each of the pair of gas discharge passages has an open portion formed by a top of the gas discharge passage.

Battery module including base plate having gas discharge passage, and battery pack and energy storage system including the same

A battery module includes at least two cell assemblies, a module housing having an upper cover formed by a top portion and a first side portion extending downward from a first side edge of the top portion, a first gas passage formed between the first side portion of the upper cover and a first side of the at least two cell assemblies for circulation of gas generated from the at least two cell assemblies, and a flame retardant plate in the first gas passage and extending between the at least two cell assemblies and the module housing, wherein the first side portion of the upper cover is coupled to the flame retardant plate.

Battery module, battery rack comprising same, and power storage device

A battery module according to an embodiment of the present disclosure includes a plurality of battery cells and a bus bar assembly configured to electrically connect the electrode leads of the battery cells, and the bus bar assembly includes a bus bar frame configured to cover one side of the battery cells, a plurality of lead slots through which the electrode leads pass, a sensing bus bar connected to the electrode leads, and an elastic guider disposed at both left and right sides of the sensing bus bar in a left and right direction of the bus bar frame.

Battery module, battery pack comprising same, and vehicle

A battery module includes a plurality of battery cells stacked on each other; a module case configured to accommodate the plurality of battery cells; and a plurality of thermal runaway prevention units provided in the module case and respectively disposed between the plurality of battery cells along a stacking direction of the plurality of battery cells.

Battery module, and battery rack and power storage device, each comprising same battery module

A battery module includes battery cells; a module case configured to accommodate the battery cells and having an internal cooling channel provided at both sides of the plurality of battery cells; a venting opening provided at both side surfaces of the module case; a sheet member mounted to both side surfaces of the module case to cover the venting opening and melted over a predetermined temperature to open the venting opening; and a blocking bracket spaced apart from the sheet member by a predetermined distance and mounted to inner walls at both sides of the module case.

Battery module, and battery rack and power storage device comprising battery module

A battery module reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.

Battery module including cooling member, and battery pack and energy storage system including the same

A battery module system includes a cooling device, a battery module disposed on the cooling device, the battery module being in direct or indirect contact with the cooling device, a sensor attached to the battery module to sense a temperature of the battery module or gas generated from the battery module, a battery management system to output a switching on/off signal with reference to a sensing signal transmitted from the sensor; and an external short-circuiting device connected between the positive electrode and negative electrode of the battery module to induce an external short circuit of the battery module, the external short-circuiting device including: a resistor disposed on the cooling device, the resistor being in direct or indirect contact with the cooling device; and a switch to electrically connect or isolate the battery module to/from the resistor according to the switching on/off signal.

Battery module system comprising external short-circuit device and cooling device

A battery module reduces the risk of secondary ignition or explosion and increases cooling efficiency. The battery module includes a cell assembly having a plurality of secondary batteries stacked on each other in a front and rear direction; and a base plate configured such that the plurality of secondary batteries of the cell assembly are mounted to an upper portion thereof, the base plate including at least one gas discharge passage having a sidewall elongated in the front and rear direction to communicate with the outside and an open portion formed by a top of the sidewall in one direction and at least one anti-inflammatory mesh sheet configured to cover the open portion.

A battery rack includes a plurality of battery modules stacked on each other in a vertical direction; a rack case configured to accommodate the plurality of battery modules; and at least one firewall provided to at least one of both side surfaces of the rack case to prevent flame and heat from propagating toward an adjacent battery rack when a fire occurs.

Battery rack and power storage device comprising same

A battery cell includes an electrode assembly, a pair of electrode leads electrically connected to the electrode assembly, a battery case configured to accommodate the pair of electrode leads such that the pair of electrode leads protrude at least partially in a front and rear direction of the battery cell, the battery case having an accommodation space formed to accommodate the electrode assembly, and a taping unit configured to integrally cover both side surfaces and upper and lower surfaces of the battery case.

Battery cell, and battery module, battery rack and energy storage system including the same

A cylindrical secondary battery module includes: a plurality of cylindrical secondary battery cells respectively having a battery case in which an electrode assembly and an electrolyte are accommodated; a cell frame at which the plurality of cylindrical secondary battery cells are disposed; and a lid coupled to the cell frame and having a flame outlet. The cell frame includes: a plurality of plate members bent and coupled to intersect each other; and a space formed between the plurality of plate members so that the cylindrical secondary battery cells are disposed therein.

Cylindrical secondary battery module and method for producing cylindrical secondary battery module

A cylindrical secondary battery module including a plurality of cylindrical secondary battery cells respectively having a battery case in which an electrode assembly and an electrolyte are accommodated; a cell frame at which the plurality of cylindrical secondary battery cells are disposed; and a bus bar electrically connected to the plurality of cylindrical secondary battery cells and having a fusing portion, wherein the bus bar has a plurality of layers made of different materials from each other.

Growing community of inventors

Daejeon, South Korea

Jae-Min Yoo