# US 12,603,353 B2 · Battery pack case, and battery pack including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,353 B2 - Document ID: US12603353B2 - Status: Granted - Kind: B2 - Application number: 17/560,567 - Filed: 2021-12-23 - Published: 2022-06-30 - Granted: 2026-04-14 - Earliest claimed: 2020-12-24 - Assignees: SK On Co., Ltd. - Applicants: Sk On Co., Ltd. - Inventors: Jun Hee Jung; Jae Il Hwang; Min Song Kang; Bon Seok Ku; Sei Hoon Cho; Jin Su Han - Web page: https://patentgrep.com/patent/US12603353B2 ## CPC - H01M 10/6566: Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers (H01M10/6565 takes precedence) - H01M 50/35: Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages - B60K 1/04: of the electric storage means for propulsion - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 50/66: {Arrangements of batteries} - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 50/105: Pouches or flexible bags - H01M 50/211: adapted for pouch cells - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 50/291: characterised by their shape - H01M 50/533: characterised by the shape of the leads or tabs - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The following disclosure relates to a battery pack case, and more particularly, to a battery pack case in which an internal space defined by a plate and an outer frame is partitioned into a plurality of module spaces so that a plurality of battery modules are individually seated and in which a plurality of channels are formed inside a left frame and a right frame of the outer frame and have a structure in which they are in communication with internal spaces of each of the plurality of partitioned module spaces to be able to discharge a harmful material generated at the time of occurrence of an issue in the battery module to the outside through the plurality of channels. ## Claims ### Claim 1 A battery pack comprising: a plate providing a space in which battery modules are seated; an outer frame formed at a predetermined height at an outer side of the plate; and a partition frame partitioning an internal space defined by the plate and the outer frame into a plurality of module spaces, wherein a plurality of channels separated from each other are formed inside a left frame positioned on the left and a right frame positioned on the right in the outer frame, and an internal space of each of the plurality of module spaces is in communication with one of the plurality of channels, wherein the plurality of module spaces are disposed in two columns, a plurality of left channels separated from each other are formed inside the left frame, and a plurality of right channels separated from each other are formed inside the right frame, the number of module spaces of a first column disposed on the left among the plurality of module spaces disposed in the two columns is the same as the number of left channels, and the number of module spaces of a second column disposed on the right among the plurality of module spaces disposed in the two columns is the same as the number of right channels, wherein an internal space of each of the module spaces of the first column is in communication with each of the plurality of left channels in a one-to-one and mutually isolated manner, such that each of the module space is isolated from other module spaces, and an internal space of each of the module spaces of the second column is in communication with each of the plurality of right channels in a one-to-one and mutually isolated manner, such that each of the module space is isolated from other module spaces. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the plurality of channels are formed in a straight line shape in which at least one of one ends and the other ends thereof are opened, respectively, and are stacked in a height direction to be formed in a multifloor structure. ### Claim 3 (depends on 2) The battery pack of claim 2, further comprising a front vent cap provided at one end portion of the left frame and/or the right frame and having one or more vent holes formed therein and a rear vent cap provided at the other end portion of the left frame and/or the right frame and having one or more vent holes formed therein, wherein the opened one ends of some of the plurality of channels are in communication with the outside through the vent holes formed in the front vent cap, and the opened one ends of the others of the plurality of channels are closed by a surface of the front vent cap in which the vent holes are not formed, and the opened other ends of some of the plurality of channels are closed by a surface of the rear vent cap in which the vent holes are not formed, and the opened other ends of the others of the plurality of channels are in communication with the outside through the vent holes formed in the rear vent cap. ### Claim 4 (depends on 3) The battery pack of claim 3, further comprising a guide wall disposed in each channel and guiding a gas to the vent hole corresponding to each channel. ### Claim 5 (depends on 1) The battery pack of claim 1, wherein the plurality of left channels are formed in a straight line shape in which at least one of one ends and the other ends thereof are opened, respectively, and are stacked in a height direction to be formed in a multifloor structure, and the plurality of right channels are formed in a straight line shape in which at least one of one ends and the other ends thereof are opened, respectively, and are stacked in the height direction to be formed in a multifloor structure. ### Claim 6 (depends on 5) The battery pack of claim 5, further comprising: a front vent cap for the left frame provided at one end portion of the left frame and having one or more vent holes formed therein and a rear vent cap for the left frame provided at the other end portion of the left frame and having one or more vent holes formed therein; and a front vent cap for the right frame provided at one end portion of the right frame and having one or more vent holes formed therein and a rear vent cap for the right frame provided at the other end portion of the right frame and having one or more vent holes formed therein, wherein the opened one ends of some of the plurality of left channels are in communication with the outside through the vent holes formed in the front vent cap for the left frame, and the opened one ends of the others of the plurality of left channels are closed by a surface of the front vent cap for the left frame in which the vent holes are not formed, the opened other ends of some of the plurality of left channels are closed by a surface of the rear vent cap for the left frame in which the vent holes are not formed, and the opened other ends of the others of the plurality of left channels are in communication with the outside through the vent holes formed in the rear vent cap for the left frame, the opened one ends of some of the plurality of right channels are in communication with the outside through the vent holes formed in the front vent cap for the right frame, and the opened one ends of the others of the plurality of right channels are closed by a surface of the front vent cap for the right frame in which the vent holes are not formed, and the opened other ends of some of the plurality of right channels are closed by a surface of the rear vent cap for the right frame in which the vent holes are not formed, and the opened other ends of the others of the plurality of right channels are in communication with the outside through the vent holes formed in the rear vent cap for the right frame. ### Claim 7 (depends on 6) The battery pack of claim 6, further comprising: a guide wall for the left channel disposed on each left channel and guiding a gas to the vent hole corresponding to each left channel; and a guide wall for the right channel disposed on each right channel and guiding a gas to the vent hole corresponding to each right channel. ### Claim 8 (depends on 6) The battery pack of claim 6, wherein in each left channel, an end portion having a greater distance of a distance from a communication hole formed in each left channel to one end of each left channel and a distance from the communication hole to the other end of each left channel is in communication with the outside, and in each right channel, an end portion having a greater distance of a distance from a communication hole formed in each right channel to one end of each right channel and a distance from the communication hole to the other end of each right channel is in communication with the outside. ### Claim 9 (depends on 6) The battery pack of claim 6, wherein in each left channel, an end portion that is in communication with the outside, of one end and the other end of a left channel of any one floor of left channels of two floors adjacent to each other and an end portion that is in communication with the outside, of one end and the other end of a left channel of the other floor of the left channels of the two floors adjacent to each other are opposite to each other, and in each right channel, an end portion that is in communication with the outside, of one end and the other end of a right channel of any one floor of right channels of two floors adjacent to each other and an end portion that is in communication with the outside, of one end and the other end of a right channel of the other floor of the right channels of the two floors adjacent to each other are opposite to each other. ### Claim 10 (depends on 1) The battery pack of claim 1, wherein the internal space of each of the plurality of module spaces comprises a battery cell assembly formed by stacking a plurality of battery cells each comprising an electrode tab lead portion and a heat exchange portion and a heat conduction member disposed between the heat exchange portion and the plate, and the electrode tab lead portion comprises a sealed surface formed by thermally compressing a pouch accommodating an electrode assembly, and the heat exchange portion makes surface contact with the heat conduction member and is free of any sealing surface. ### Claim 11 (depends on 10) The battery pack of claim 10, wherein the electrode tab lead portion further comprises a corner portion at one end thereof, and the corner portion protrudes more toward the plate than the heat exchange portion, and the plate comprises a step portion for accommodating the protruding corner portion. ### Claim 12 (depends on 1) An electric vehicle comprising: the battery pack of claim 1; and a motor receiving power supplied from the battery pack. ### Claim 13 (depends on 1) The battery pack of claim 1, wherein the internal space of each of the plurality of module spaces comprises a battery cell assembly formed by stacking a plurality of battery cells each comprising an electrode tab lead portion and a heat exchange portion and a heat conduction member disposed between the heat exchange portion and the plate, and the electrode tab lead portion comprises a sealed surface formed by thermally compressing a pouch accommodating an electrode assembly, and the heat exchange portion is in contact with the heat conduction member without the sealed surface. ### Claim 14 (depends on 13) The battery pack of claim 13, wherein the electrode tab lead portion further comprises a corner portion at one end thereof, and the corner portion protrudes more toward the plate than the heat exchange portion, and the plate comprises a step portion for accommodating the protruding corner portion.