# US 9,882,253 B1 · Cooled busbars and plate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,882,253 B1 - Document ID: US9882253B1 - Status: Granted - Kind: B1 - Application number: 15/675,437 - Filed: 2017-08-11 - Granted: 2018-01-30 - Earliest claimed: 2016-09-07 - Assignees: Thunder Power New Energy Vehicle Development Company Limited - Applicants: Thunder Power New Energy Vehicle Development Company Limited - Inventors: Peter Tutzer; Francesco Mastrandrea - Web page: https://patentgrep.com/patent/US9882253B1 ## CPC - H01M 10/613: Cooling or keeping cold - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - H01M 10/052: Li-accumulators - H01M 10/058: Construction or manufacture - H01M 10/625: Vehicles - H01M 10/6553: Terminals or leads - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 10/66: Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells - H01M 50/1385: {Hybrid cells} - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - 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 10/643: Cylindrical cells - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - 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 - 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A rechargeable battery system, a battery pack, and methods of manufacturing the same are disclosed herein. The rechargeable battery system and/or battery pack can be for an electric vehicle. The rechargeable battery system and/or battery pack can include a plurality of battery cells arranged into one or more rows, a busbar, and a housing. The housing can include a plurality of receptacles that can engage with the plurality of battery cells to secure a relative position of the plurality of battery cells with respect to each other. The housing can define a cooling duct in thermal connection with the plurality of receptacles. ## Claims ### Claim 1 A battery pack for an electric vehicle, the battery pack comprising: a plurality of battery cells arranged into one or more rows, wherein: each of the plurality of battery cells comprises a first terminal and a second terminal; and each of the plurality of battery cells comprises a first end and a second end; a busbar extending over the first ends of the plurality of battery cells, the busbar configured to conduct electrical energy to and from the battery cells, wherein the busbar connects to the first terminals and the second terminals of the plurality of battery cells, wherein the busbar defines a busbar cooling duct having an entrance and an exit, wherein the busbar cooling duct is in thermal connection with a plurality of contacts of the busbar; and a housing comprising a plurality of receptacles configured to engage with the plurality of battery cells to secure a relative position of the plurality of battery cells with respect to each other, wherein the housing defines a housing cooling duct in thermal connection with the plurality of receptacles. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the busbar comprises a first busbar layer configured to conduct electrical energy to and from a first subset of battery cells and a second busbar layer configured to conduct electrical energy to and from a second subset of battery cells, and wherein the first busbar layer is electrically insulated from the second busbar layer. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the busbar comprises a top and a bottom, and wherein the busbar cooling duct comprises a first cooling duct directly cooling the first busbar layer and a second cooling duct directly cooling the second busbar layer. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein the busbar and the housing are configured to simultaneously cool the first and second terminals of the battery cells in the battery pack. ### Claim 5 (depends on 2) The battery pack of claim 2, wherein the first busbar layer is configured to alternatively connect to the first and second terminals of battery cells. ### Claim 6 (depends on 2) The battery pack of claim 2, wherein the first busbar layer comprises a first conductive material and wherein the second busbar layer comprises a second conductive material. ### Claim 7 (depends on 4) The battery pack of claim 4, wherein the first busbar layer is separated from the second busbar layer by an insulative layer. ### Claim 8 (depends on 1) The battery pack of claim 1, wherein the first and second conductive materials are the same material. ### Claim 9 (depends on 1) The battery pack of claim 1, wherein the housing comprises an entrance and an exit fluidly connected to the housing cooling duct. ### Claim 10 (depends on 9) The battery pack of claim 9, wherein the battery pack further comprises a heat exchanger fluidly connected to at least one of the entrance and the exit of the housing cooling duct, and wherein the heat exchanger is fluidly connected to at least one of the entrance and the exit of the busbar cooling duct. ### Claim 11 (depends on 10) The battery pack of claim 10, further comprising a cooling fluid contained within the heat exchanger, the busbar cooling duct, and the housing cooling duct. ### Claim 12 A method of manufacturing a battery pack for an electric vehicle, the method comprising: arranging a plurality of battery cells into one or more rows, wherein: each of the plurality of battery cells comprises a first terminal and a second terminal; and each of the plurality of battery cells comprises a first end and a second end; positioning a busbar configured to conduct electrical energy to and from plurality battery cells over the first ends of the plurality of battery cells, wherein the busbar defines a busbar cooling duct thermally connected with a plurality of contacts of the busbar; and receiving the plurality of battery cells within a plurality of receptacles of a housing, wherein the receptacles are configured to engage with the plurality of battery cells to secure a relative position of the plurality of battery cells with respect to each other, wherein the housing defines a housing cooling duct in thermal connection with the plurality of receptacles. ### Claim 13 (depends on 12) The method of claim 12, wherein the busbar comprises a first busbar layer configured to conduct electrical energy to and from a first subset of battery cells and a second busbar layer configured to conduct electrical energy to and from a second subset of battery cells, and wherein the first busbar layer is electrically insulated from the second busbar layer. ### Claim 14 (depends on 13) The method of claim 13, wherein the busbar comprises a top and a bottom, and wherein the busbar cooling duct comprises a first cooling duct directly cooling the first busbar layer and a second cooling duct directly cooling the second busbar layer. ### Claim 15 (depends on 14) The method of claim 14, wherein the busbar and the housing are configured to simultaneously cool the first and second terminals of the battery cells in the battery pack. ### Claim 16 (depends on 12) The method of claim 12, wherein the housing comprises an entrance and an exit fluidly connected to the housing cooling duct. ### Claim 17 (depends on 16) The method of claim 16, further comprising fluidly connecting the entrance and exit of the housing cooling duct to a heat exchanger. ### Claim 18 (depends on 17) The method of claim 17, wherein the battery pack further comprises a heat exchanger fluidly connected to at least one of the entrance and the exit of the housing cooling duct, and wherein the heat exchanger is fluidly connected to at least one of the entrance and the exit of the busbar cooling duct. ### Claim 19 (depends on 18) The method of claim 18, further comprising filing the heat exchanger, the busbar cooling duct, and the housing cooling duct with a cooling fluid. ### Claim 20 (depends on 19) The method of claim 19, wherein the cooling fluid comprises a refrigerant.