US 12,218,366 B2
Busbar and battery laminate
Tetsuji Omura, Hyogo (JP); and Masaya Ugaji, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Apr. 28, 2023, as Appl. No. 18/309,267.
Application 18/309,267 is a continuation of application No. 16/639,084, granted, now 11,677,114, previously published as PCT/JP2018/045028, filed on Dec. 7, 2018.
Claims priority of application No. 2017-243049 (JP), filed on Dec. 19, 2017.
Prior Publication US 2023/0268596 A1, Aug. 24, 2023
Int. Cl. H01M 50/509 (2021.01); H01M 50/209 (2021.01); H01M 50/505 (2021.01); H01M 50/522 (2021.01); H01M 50/55 (2021.01); H01M 50/553 (2021.01); H01M 50/264 (2021.01); H01M 50/293 (2021.01)
CPC H01M 50/209 (2021.01) [H01M 50/505 (2021.01); H01M 50/509 (2021.01); H01M 50/522 (2021.01); H01M 50/264 (2021.01); H01M 50/293 (2021.01); H01M 50/55 (2021.01); H01M 50/553 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A battery module comprising:
a plurality of batteries stacked together along a first direction, wherein each of the plurality of batteries includes a first terminal and a second terminal which are aligned along a second direction perpendicular to the first direction; and
a busbar that electrically connects the plurality of batteries with each other,
wherein the busbar has:
a main body that extends along the first direction; and
a plurality of connectors that protrude from the main body along the second direction, and are electrically connected with terminals of the plurality of batteries, respectively,
the plurality of batteries are divided into battery units, each of the battery units including at least two of the plurality of batteries,
the busbar connects the at least two of the plurality of batteries of each of the battery units with each other in parallel through the main body,
the busbar connects the battery units with each other in series through the main body,
an upper surface of the main body includes a first region and second regions, which are arranged along the first direction,
the main body including the first region and the second regions and the plurality of connectors are integrally formed as a one-piece bus bar,
the first region and the second regions are arranged in parallel with connection portions of corresponding batteries to which the first region and the second regions are connected along the second direction,
the first region is disposed closer to the battery units than each of the second regions in a third direction perpendicular to the first direction and the second direction, and
two of the second regions are disposed at both end portions of the main body along the first direction and include two ends of the busbar along the first direction.