# US 10,873,112 B2 · Battery system, vehicle with such a battery system, and method for operation of such a battery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,112 B2 - Document ID: US10873112B2 - Status: Granted - Kind: B2 - Application number: 16/142,413 - Filed: 2018-09-26 - Published: 2019-04-11 - Granted: 2020-12-22 - Earliest claimed: 2017-09-26 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Torsten Koller - Web page: https://patentgrep.com/patent/US10873112B2 ## CPC - H01M 10/625: Vehicles - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/613: Cooling or keeping cold - H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The invention relates to a battery system with a battery module (2) comprising a plurality of battery cells (3), wherein the battery cells (3) take the form, in particular, of lithium-ion battery cells or lithium-polymer battery cells, wherein the battery system (1) exhibits a first temperature-control-fluid guide (4) which is designed to be capable of being flowed through by a first temperature-control fluid (5) and, moreover, exhibits a first conveying unit (6) designed for a conveyance of the first temperature-control fluid (5) through the first temperature-control-fluid guide (4), and wherein the first temperature-control-fluid guide (4) is connected to the battery module (2) in heat-conducting manner, wherein the battery system (1) exhibits a second temperature-control-fluid guide (7) which is designed to be capable of being flowed through by a second temperature-control fluid (8) and, moreover, exhibits a second conveying unit (9) designed for an uptake of kinetic energy from the second temperature-control fluid (8), wherein the second temperature-control-fluid guide (7) exhibits at least one port (10) designed for a fluid-conducting connection to a further temperature-control-fluid guide (11), wherein the battery system (1) exhibits, moreover, a heat-exchanger unit (12) designed to the first temperature-control-fluid guide (4) and to the second temperature-control-fluid guide (7) in heat-conducting manner, which is designed to transfer heat between the first temperature-control-fluid guide (4) and the second temperature-control-fluid guide (7), wherein the first conveying element (6) and the second conveying element (9) are connected to one another in coupled manner in such a way that mechanical work can be transferred from the second conveying element (9) to the first conveying element (6). ## Claims ### Claim 1 A battery system (1), with a battery module (2) comprising a plurality of battery cells (3), wherein the battery system (1) includes a first temperature-control-fluid guide (4) which is configured to be flowed through by a first temperature-control fluid (5) and includes a first conveying element (6) configured for propelling the first temperature-control fluid (5) through the first temperature-control-fluid guide (4), wherein the first temperature-control-fluid guide (4) is connected to the battery module (2) in heat-conducting manner, wherein the battery system (1) includes a second temperature-control-fluid guide (7) which is configured to be flowed through by a second temperature-control fluid (8), and includes a second conveying element (9) configured for uptake of kinetic energy from the second temperature-control fluid (8), wherein the second temperature-control-fluid guide (7) includes at least one port (10) configured for a fluid-conducting connection to a third temperature-control-fluid guide (11), and wherein the battery system (1) further includes a heat-exchanger unit (12) which is connected to the first temperature-control-fluid guide (4) and to the second temperature-control-fluid guide (7) in heat-conducting manner, and which is configured to transfer heat between the first temperature-control-fluid guide (4) and the second temperature-control-fluid guide (7), characterized in that the second conveying element (9) is coupled to the first conveying element (6) and is configured to transfer kinetic energy from the second temperature-control fluid (8) to the first conveying element (6), and the first conveying element (6) is configured to transfer kinetic energy from the second conveying element (9) to the first temperature-control fluid (4). ### Claim 2 (depends on 1) The battery system according to the preceding claim 1, characterized in that the first temperature-control fluid (5) is received in the first temperature-control-fluid guide (4), the first temperature-control fluid (5) taking the form of a water/glycol mixture or a dielectric temperature-control fluid. ### Claim 3 (depends on 1) The battery system according to claim 1, characterized in that the battery module (2) includes a temperature-control plate (14) connected to the plurality of battery cells (3) in heat-conducting manner, wherein the temperature-control plate (14) is configured to be flowed through by the first temperature-control fluid (5). ### Claim 4 (depends on 1) The battery system according to claim 1, characterized in that the battery module (2) includes an interior space (15) in which the plurality of battery cells (3) are accommodated, wherein the interior space (15) is configured to be flowed through by the first temperature-control fluid (5). ### Claim 5 (depends on 1) The battery system according to claim 1, characterized in that the second conveying element (9) takes the form of a turbine, an impeller or a blade wheel. ### Claim 6 (depends on 5) The battery system according to claim 5, characterized in that the first conveying element (6) and the second conveying element (9) are connected to one another in mechanically coupled manner. ### Claim 7 (depends on 1) The battery system according to claim 1, characterized in that the first temperature-control-fluid guide (4) and the second temperature-control-fluid guide (7) are separated in fluid-conducting manner. ### Claim 8 (depends on 1) A vehicle (100) including a battery system (1) according to claim 1, wherein the at least one port (10) of the second temperature-control-fluid guide (7) is connected in fluid-conducting manner to the third temperature-control-fluid guide (11), wherein the third temperature-control-fluid guide (11) is part of the vehicle (100), characterized in that the third temperature-control-fluid guide (11) includes a third conveying element (16) which is configured for propelling of the second temperature-control fluid (8) through the third temperature-control-fluid guide (11) and the second temperature-control-fluid guide (7). ### Claim 9 (depends on 1) A method for operating a battery system (1) according to claim 1, characterized in that in a first method step, the battery system (1) is provided, in a second method step, the first temperature-control fluid (5) is received in the first temperature-control-fluid guide (4), and in a third method step, the second temperature-control-fluid guide (7) is flowed through by a second temperature-control fluid (8), whereby mechanical work is transferred from the second conveying element (9) to the first conveying element (6). ### Claim 10 (depends on 1) The battery system according to claim 1, wherein the battery system is in a vehicle, and wherein the battery cells (3) are lithium-ion battery cells. ### Claim 11 (depends on 1) The battery system according to claim 1, wherein the battery system is in a vehicle, and wherein the battery cells (3) are lithium-polymer battery cells. ### Claim 12 (depends on 1) The battery system according to claim 1, characterized in that the battery module (2) includes an interior space (15) in which the plurality of battery cells (3) are accommodated, wherein the interior space (15) is configured to be flowed through by the first temperature-control fluid (5), and wherein the plurality of battery cells (3) are configured to be flowed around immediately by the first temperature-control fluid (5). ### Claim 13 (depends on 6) The battery system according to claim 6, characterized in that the first conveying element (6) and the second conveying element (9) are also connected to one another in magnetically coupled manner. ### Claim 14 (depends on 5) The battery system according to claim 5, characterized in that the first conveying element (6) and the second conveying element (9) are connected to one another in magnetically coupled manner. ### Claim 15 (depends on 1) The battery system according to claim 1, characterized in that the first conveying element (6) takes the form of an impeller or a blade wheel.