CPC H01M 50/519 (2021.01) [H01M 10/482 (2013.01); H01M 50/249 (2021.01); H01M 50/284 (2021.01); H01M 2220/20 (2013.01)] | 14 Claims |
1. A battery module comprising:
a plurality of secondary batteries arranged side by side in an arrangement direction, each of the plurality of secondary batteries having positive and negative terminals protruding upwards at a top-end of the respective secondary battery in a direction perpendicular to the arrangement direction;
one or more busbar arranged on a top of the secondary batteries, each of the one or more busbar being electrically connected to at least two of the plurality of secondary batteries;
a sampling assembly comprising a sampling circuit board and one or more sampling leg, the sampling circuit board being arranged on the top-end of each of the plurality of secondary batteries and extending in the arrangement direction, each of the one or more busbar being connected to sampling circuit board by a respective sampling leg of the one or more sampling leg;
one or more connector, each of the one or more sampling leg and the respective busbar being connected at one or more welded zone by welding and connected with a respective connector of the one or more connector in a way of bolting, riveting or plug-in, wherein each of the one or more connector is located between all of the respective one or more welded zone and the sampling circuit board.
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