# US 2021/0242542 A1 · Power supply device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242542 A1 - Document ID: US20210242542A1 - Status: Published application - Kind: A1 - Application number: 17/053,552 - Filed: 2019-05-15 - Published: 2021-08-05 - Earliest claimed: 2018-05-23 - Assignees: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd. - Applicants: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd. - Inventors: Yusuke ISAJI; Hiroshi SHIMIZU; Ryoya OKAMOTO - Web page: https://patentgrep.com/patent/US20210242542A1 ## CPC - H01M 50/296: characterised by terminals of battery packs (terminals of batteries H01M50/543) - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/224: Metals - H01M 50/298: characterised by the wiring of battery packs - H01M 50/50: Current conducting connections for cells or batteries - H01M 50/503: characterised by the shape of the interconnectors - H01M 50/51: Connection only in series - H01M 50/55: on the same side of the cell - 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 A power supply device disclosed by the present specification includes: a first power storage element group that has a pair of first external terminals having different polarities, and includes a plurality of power storage elements; and a second power storage element group that has a pair of second external terminals having different polarities, and includes a plurality of power storage elements. The first power storage element group and the second power storage element group are arranged adjacent to each other in a front-rear direction, the first external terminals are provided at the front edge on the second power storage element group side of the first power storage element group, and the second external terminals 48 are arranged to be adjacent to the first external terminals at a rear edge on the first power storage element group side of the second power storage element group. ## Claims ### Claim 1 A power supply device comprising: a first power storage element group that has a pair of first external terminals having different polarities, and includes a plurality of power storage elements; and a second power storage element group that has a pair of second external terminals having different polarities, and includes a plurality of power storage elements, wherein the first power storage element group and the second power storage element group are arranged adjacent to each other, the first external terminals are provided on the second power storage element group side of the first power storage element group, and the second external terminals are arranged to be adjacent to the first external terminals on the first power storage element group side of the second power storage element group. ### Claim 2 (depends on 1) The power supply device according to claim 1, wherein the pair of first external terminals includes a first positive electrode external terminal disposed at one end of an edge on the second power storage element group side of the first power storage element group, and a first negative electrode external terminal disposed at the other end opposite to the one end of the edge on the second power storage element group side of the first power storage element group, and the pair of second external terminals includes a second positive electrode external terminal disposed to be adjacent to the first positive electrode external terminal at an edge on the first power storage element group side of the second power storage element group, and a second negative electrode external terminal disposed to be adjacent to the first negative electrode external terminal at the edge on the first power storage element group side of the second power storage element group. ### Claim 3 (depends on 2) The power supply device according to claim 2, wherein the first positive electrode external terminal and the second positive electrode external terminal are connected to each other by a first total output bus bar disposed between the first power storage element group and the second power storage element group, and the first negative electrode external terminal and the second negative electrode external terminal are connected to each other by a second total output bus bar disposed between the first power storage element group and the second power storage element group. ### Claim 4 (depends on 3) The power supply device according to claim 3, wherein each of the first and second total output bus bars has a pair of connecting portions projecting in a direction intersecting a connecting direction, and when the first total output bus bar connecting the first positive electrode external terminal and the second positive electrode external terminal is a total positive electrode bus bar and the second total output bus bar connecting the first negative electrode external terminal and the second negative electrode external terminal is a total negative electrode bus bar, one of the pair of connecting portions of the total positive electrode bus bar is connected to an electric wire drawn toward the total negative electrode bus bar side, and the other of the pair of connecting portions is connected to an electric wire drawn toward a side opposite to that of the total negative electrode bus bar, and one of the pair of connecting portions of the total negative electrode bus bar is connected to an electric wire drawn toward the total positive electrode bus bar side, and the other of the pair of connecting portions is connected to an electric wire drawn toward a side opposite to that of the total positive electrode bus bar.