# US 2021/0242440 A1 · Lithium ion battery and enclosure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242440 A1 - Document ID: US20210242440A1 - Status: Published application - Kind: A1 - Application number: 16/778,888 - Filed: 2020-01-31 - Published: 2021-08-05 - Earliest claimed: 2020-01-31 - Assignees: Teledyne Energy Systems, Inc. - Applicants: Teledyne Energy Systems, Inc. - Inventors: Antonio Reis; Monroe Major; Richard Sickenberger - Web page: https://patentgrep.com/patent/US20210242440A1 ## CPC - H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) - H01M 50/516: by welding, soldering or brazing - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/658: by thermal insulation or shielding - H01M 50/207: characterised by their shape - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB] - H01M 50/502: Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing - H01M 50/514: Methods for interconnecting adjacent batteries or cells - H01M 50/224: Metals - 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 Systems and methods of a battery assembly are disclosed. The battery assembly includes an extruded housing, a plurality of battery cells within the extruded housing forming a plurality of cell blocks, and a circuit coupled to the cell blocks and configured to connect one or more of the cell blocks selectively in parallel or series. A cell block within the plurality of cell blocks may be selectively isolated from each other cell block within the plurality of cell blocks using the circuit. The cell block within the plurality of cell blocks may include a series connected string of battery cells. The cell block within the plurality of cell blocks may include parallel connected battery cells. ## Claims ### Claim 1 A battery assembly, comprising: an extruded housing; a plurality of battery cells within the extruded housing forming a plurality of cell blocks; and a circuit coupled to the plurality of cell blocks and configured to connect one or more of the plurality of cell blocks selectively in parallel or series. ### Claim 2 (depends on 1) The battery assembly of claim 1, wherein a cell block within the plurality of cell blocks is selectively isolated from each other cell block within the plurality of cell blocks using the circuit. ### Claim 3 (depends on 2) The battery assembly of claim 2, wherein the cell block within the plurality of cell blocks comprises battery cells connected in series. ### Claim 4 (depends on 3) The battery assembly of claim 3, wherein the battery assembly is configured to discharge all cells to a specific voltage by selectively isolated individual cell blocks within the plurality of cell blocks from other cell blocks within the plurality of cell blocks using the circuit. ### Claim 5 (depends on 2) The battery assembly of claim 2, wherein the cell block within the plurality of cell blocks comprises battery cells connected in parallel. ### Claim 6 (depends on 5) The battery assembly of claim 5, wherein the battery assembly is configured to charge the cell block of the plurality of cell blocks. ### Claim 7 (depends on 5) The battery assembly of claim 5, wherein a first battery cell of the battery cells connected in parallel is laser welded to a first cell tab. ### Claim 8 (depends on 7) The battery assembly of claim 7, wherein a second battery cell of an adjacent group of battery cells connected in parallel is laser welded to a second cell tab. ### Claim 9 (depends on 8) The battery assembly of claim 8, wherein the first cell tab and the second cell tab are in electrical contact. ### Claim 10 (depends on 8) The battery assembly of claim 8, wherein the first cell tab and the second cell tab are connected using at least one formed clip. ### Claim 11 (depends on 1) The battery assembly of claim 1, wherein the extruded housing comprises: an extruded case; a top cover connected to the extruded case; a first end cover, coupled to a first end of the extruded case; and a second end cover, coupled to a second end of the extruded case. ### Claim 12 (depends on 11) The battery assembly of claim 11, wherein the extruded case, the top cover, the first end cover, and the second end cover are bonded. ### Claim 13 (depends on 11) The battery assembly of claim 11, wherein the extruded case, the top cover, the first end cover, and the second end cover are connected to form a hermetic enclosure. ### Claim 14 (depends on 11) The battery assembly of claim 11, wherein the top cover is extruded. ### Claim 15 (depends on 11) The battery assembly of claim 11, wherein the extruded case further comprises at least one of a mounting location, a detent, or a cable support system. ### Claim 16 (depends on 1) The battery assembly of claim 1, further comprising a flame-resistant material configured to isolate the plurality of battery cells from each other and from the extruded housing. ### Claim 17 A method of a battery assembly, comprising: providing an extruded housing; providing a plurality of battery cells within the extruded housing forming a plurality of cell blocks; providing a circuit coupled to the plurality of cell blocks; and connecting one or more of the plurality of cell blocks selectively in parallel or series using the circuit. ### Claim 18 (depends on 17) The method of claim 17, further comprising selectively isolated a cell block within the plurality of cell blocks from each other cell block within the plurality of cell blocks using the circuit. ### Claim 19 (depends on 18) The method of claim 18, wherein the cell block within the plurality of cell blocks comprises battery cells connected in series. ### Claim 20 (depends on 18) The method of claim 18, wherein the cell block within the plurality of cell blocks comprises battery cells connected in parallel.