# US 2018/0026243 A1 · Battery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0026243 A1 - Document ID: US20180026243A1 - Status: Published application - Kind: A1 - Application number: 15/653,791 - Filed: 2017-07-19 - Published: 2018-01-25 - Earliest claimed: 2016-07-21 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Oliver STOJANOVIC; Damir KOVAC; Ralph WUENSCHE - Web page: https://patentgrep.com/patent/US20180026243A1 ## CPC - H01M 10/613: Cooling or keeping cold - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 58/21: having the same nominal voltage - H01M 10/482: {for several batteries or cells simultaneously or sequentially} - H01M 10/647: Prismatic or flat cells, e.g. pouch cells - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - 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 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 50/509: characterised by the type of connection, e.g. mixed connections - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - 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 ## Abstract A battery system includes: a battery submodule including a plurality of secondary battery cells electrically connected to each other in series or in parallel; a battery module including a plurality of the battery submodules connected to each other in series or in parallel; and a crossbeam including a coolant duct. The battery module is mechanically coupled to the crossbeam, and the crossbeam is in thermal contact with a first side surface of at least one of the battery submodules of the battery module. ## Claims ### Claim 1 A battery system comprising: a battery submodule comprising a plurality of secondary battery cells electrically connected to each other in series or in parallel; a battery module comprising a plurality of the battery submodules connected to each other in series or in parallel; and a crossbeam comprising a coolant duct, the battery module being mechanically coupled to the crossbeam, and the crossbeam being in thermal contact with a first side surface of at least one of the battery submodules of the battery module. ### Claim 2 (depends on 1) The battery system according to claim 1, wherein the first side surface of two of the battery submodules of the battery module are spaced from each other by a distance corresponding to a width of the crossbeam, and wherein the crossbeam is between the two battery submodules and contacts the first side surface of each of the two battery submodules. ### Claim 3 (depends on 1) The battery system according to claim 1, further comprising a plurality of the battery modules connected to each other in series and/or in parallel and a plurality of the crossbeams, wherein each of the crossbeams is mechanically coupled to a group of the battery modules. ### Claim 4 (depends on 3) The battery system according to claim 3, wherein a space between adjacent ones of the crossbeams corresponds to a width of two of the battery submodules. ### Claim 5 (depends on 4) The battery system according to claim 4, wherein, in each of the battery submodules, a second side surface is shorter than the first side surface, and wherein the first side surface of each of the battery submodules is in thermal contact with the crossbeam. ### Claim 6 (depends on 5) The battery system according to claim 5, wherein the secondary battery cells each have a planar shape and a largest dimension in a direction substantially perpendicular to a longitudinal direction of the crossbeam. ### Claim 7 (depends on 3) The battery system according to claim 3, wherein each of the battery submodules comprises a module frame, and wherein each of the battery modules comprises a cell connector connected to the battery submodules in a respective one of the battery modules and mechanically coupled to a plurality of the module frames. ### Claim 8 (depends on 3) The battery system according to claim 3, further comprising a cell supervision circuit connected to a plurality of the battery modules. ### Claim 9 (depends on 3) The battery system according to claim 3, further comprising a housing comprising a frame and a ground plate mechanically connected to the frame, the frame comprising a plurality of longitudinal frame beams and a plurality of frame crossbeams, wherein the crossbeams are mechanically coupled to a first one of the frame beams and a second one of the frame beams that is opposite the first one of the frame beams. ### Claim 10 (depends on 9) The battery system according to claim 9, wherein coolant distributor lines are integrated into the first one and the second one of the frame beams and are fluidly connected to the coolant ducts in the crossbeams. ### Claim 11 (depends on 1) The battery system according to claim 1, wherein the battery submodule comprises a plurality of bundles comprising the secondary battery cells electrically connected to each other in parallel, and wherein the plurality of bundles is electrically connected to each other in series. ### Claim 12 (depends on 1) The battery system according to claim 1, wherein the secondary battery cells in each of the battery submodules of the battery module are arranged along a length direction that is parallel to a length direction of the crossbeam. ### Claim 13 (depends on 1) The battery system according to claim 1, each of battery submodules of the battery module comprises a stack of the secondary battery cells, and wherein each of the stacks has a stacking direction that is parallel to a length direction of the crossbeam. ### Claim 14 (depends on 1) The battery system according to claim 1, wherein each of the battery submodules comprises the first side surfaces and second side surfaces that are shorter than the first side surface, and wherein one of the first side surfaces of each of the battery submodules is in thermal contact with the crossbeam. ### Claim 15 (depends on 1) The battery system according to claim 1, wherein the secondary battery cells each have a planar shape and a largest dimension in a direction substantially perpendicular to a longitudinal direction of the crossbeam. ### Claim 16 (depends on 1) The battery system according to claim 1, wherein each of the battery submodules comprises a module frame, and wherein the battery modules comprise a cell connector connected to the battery submodules in the battery module and mechanically coupled to a plurality of the module frames. ### Claim 17 (depends on 1) The battery system according to claim 1, further comprising a cell supervision circuit connected to the battery module. ### Claim 18 (depends on 1) The battery system according to claim 1, further comprising a housing comprising a frame and a ground plate mechanically connected to the frame, the frame comprising a plurality of longitudinal frame beams and a plurality of frame crossbeams, wherein the crossbeam is mechanically coupled to a first one of the frame beams and a second one of the frame beams that is opposite the first one of the frame beams. ### Claim 19 (depends on 18) The battery system according to claim 18, wherein coolant distributor lines are integrated into the first one and the second one of the frame beams and are fluidly connected to the coolant ducts in the crossbeams.