# US 11,309,719 B2 · Battery for a motor vehicle and method for operating a battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,719 B2 - Document ID: US11309719B2 - Status: Granted - Kind: B2 - Application number: 16/353,271 - Filed: 2019-03-14 - Published: 2019-09-19 - Granted: 2022-04-19 - Earliest claimed: 2018-03-15 - Assignees: Audi AG - Applicants: Audi AG - Inventors: Michael Hinterberger; Berthold Hellenthal - Web page: https://patentgrep.com/patent/US11309719B2 ## CPC - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 58/24: for controlling the temperature of batteries - H02J 7/855: {with circuits adapted for supplying loads from the battery} - H02J 7/96: in response to battery voltage - H02J 7/977: {of the battery} - B60Y 2200/91: Electric vehicles - B60Y 2400/112: Batteries - H02J 2105/16: being internal to power sources or power generation plants - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - 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 - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A battery for a motor vehicle, having multiple battery cells which include respective battery cell housings with electric terminals via which the battery cells are electrically connected to one another. In the battery cell housings, in each case a cell branch connecting the terminals, with a galvanic cell, is arranged, and in each case several of the battery cells are connected to one another in parallel connection to form respective cell blocks. Each cell branch includes a switching element for opening and closing the cell branch; the battery has a control device which is configured in order to actuate the switching elements of the cell branches for opening or closing the switching elements as a function of a performance requirement of an electric drive of the motor vehicle. ## Claims ### Claim 1 A battery for a motor vehicle, comprising: a plurality of cell blocks, each cell block formed by connecting a plurality of battery cells in parallel, wherein each battery cell of each plurality of battery cells comprises a battery cell housing with electric terminals by which each plurality of battery cells are electrically connected to one another; wherein each of the battery cell housings contain therein a galvanic cell and a cell branch which connects the galvanic cell to the electric terminals; wherein each cell branch has a switching element for opening and closing the cell branch; wherein the battery has a control device which is configured to actuate the switching elements of the cell branches as a function of a performance requirement of an electric drive of the motor vehicle; wherein, for each of the plurality of cell blocks, in at least one of the plurality of battery cells, a bypass branch is arranged in the battery cell housing for bridging the galvanic cell, the bypass branch comprising a bridging switching element for opening and closing the bypass branch; and wherein, for bridging all of the plurality of cell blocks, for each of the plurality of cell blocks, the control device is configured to open all the switching elements and to close the at least one bridging switching element. ### Claim 2 (depends on 1) The battery according to claim 1, wherein the control device is configured to actuate the switching elements of the cell branches as a function of a respective temperature of the pluralities of battery cells. ### Claim 3 (depends on 1) The battery according to claim 1, wherein the control device is configured to actuate the switching elements of the cell branches in such a manner that, in adjacent battery cells of different cell blocks, the switching elements are switched oppositely. ### Claim 4 (depends on 1) The battery according to claim 1, wherein the control device is configured to actuate the switching elements of the cell branches as a function of a respective state of charge of the pluralities of battery cells. ### Claim 5 (depends on 1) The battery according to claim 1, wherein the control device is configured to actuate the switching elements of the cell branches as a function of a state of health of the pluralities of battery cells. ### Claim 6 (depends on 1) The battery according to claim 1, wherein the bypass branch is provided in the battery cell housing of each and every battery cell, wherein the control device is configured, for bridging all of the plurality of cell blocks, for each of the plurality of cell blocks, to open all the switching elements and to close all of the bridging switching elements. ### Claim 7 (depends on 1) The battery according to claim 1, wherein the each and every battery cell further comprises at least one sensor for the acquisition of at least one operating parameter of the battery cell, which is designed to transmit data concerning the operating parameter to the control device. ### Claim 8 (depends on 1) A method for operating a battery according to claim 1, comprising: the control device of the battery, as a function of the performance requirement of the electric drive of the motor vehicle, actuates the switching elements of the cell branches for opening or closing the switching elements.