Busbar structure and cell module

Abstract

The invention discloses a busbar structure and a cell module. The busbar structure comprises: a positive output pole; a negative output pole; a positive output pole busbar connected with the positiveoutput pole; a negative pole busbar connected with the negative output pole; and a plurality of intermediate busbars having a cell anode connection portion and a cell cathode connection portion, wherein the cell anode connection portion of the first intermediate busbar and the positive output pole busbar are insulated from each other and are distributed in a stack mode, and the cell cathode connection portion of the last intermediate busbar and the negative pole busbar are insulated from each other and are distributed in a stack mode. The cell module comprises a module holding member providedwith a cell matching structure; the cell array comprises a plurality of monomer cells which have cathodes facing the module holding member and are matched with the cell matching structure. The busbarstructure is arranged on the module holding member, the monomer cells of the cell array are connected through the busbar structure to form the cell module. The product process can be effectively simplified, the production process is reduced, and the production cost is saved.

Description

technical field [0001] The invention is used in the field of battery packs, and in particular relates to a bus bar structure and a battery core module. Background technique [0002] At present, the cylindrical cell module is generally composed of multiple single cells connected in series. First, several cells are connected in parallel to form a group, and then multiple groups of cells are connected in series to form a module; each group of cells is connected in series. The negative direction is the same, and the positive and negative directions of the adjacent groups of cells are just opposite. Connect the positive pole of one group of cells and the negative pole of the other group of cells through a whole busbar to realize the series connection between each group of cells, so The bus bar needs to be arranged on both sides of the module. When the module is produced, it is necessary to fix the bus bar on one side first, and then turn over and fix the bus bar on the other side...

AI Technical Summary

Problems solved by technology

[0002] At present, the cylindrical cell module is generally composed of multiple single cells connected in series. First, several cells are connected in parallel to form a group, and then multiple groups of cells are connected in series to form a module; each group of cells is connected in series. The negative direction is the same, and the positive and negative directions of the adjacent groups of cells are just opposite. Connect the positive pole of one group of cells and the negative pole of the other group of cells through a whole busbar to realize the series connection between each group of cells, so The bus bar needs to be arranged on both sides of the module. When the module is produced, it is necessary to fix the bus bar on one side first, and then turn over and fix the bus bar on the other side as a whole. When the bus bar is directly welded to the battery cell, it also needs to be turned back and forth. Welding, which requires high equipment and complicated processes, cannot achieve mass production of larger-sized modules

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