Lithium battery module

Abstract

The invention discloses a lithium battery module. The lithium battery module comprises a shell, an upper cover, a cell group, a support, conductive pieces and two conductive columns, wherein the cell group is arranged in the shell and consists of a plurality of cells; the support is detachably connected to the shell; the conductive pieces are connected with the cells in parallel and / or in serial; the two conductive columns have the same structure; the lithium battery module is characterized in that the output current of the conductive columns on the same position is changed by adjusting the position of an electrode of each cell. According to the lithium battery module, under the situation that the external structural size is consistent, the output electrodes of the lithium battery module are fixed on the same position, and electrical outputs in difference specifications can be provided by changing the position of each cell in the shell and connecting the conductive piece in different specifications to the cells; meanwhile, by adopting the novel conductive piece and conductive column structure, the conductive columns are directly connected with the electrode of each cell and the electrodes of the cells are directly connected with each other without adopting a connecting wire, so that the low-voltage large-current output of the lithium battery module can be realized.

Description

technical field [0001] The invention belongs to the technical field of batteries, in particular to a lithium battery module. Background technique [0002] Lithium batteries are widely used in various industries, such as pure electric vehicles, hybrid power devices, plug-in hybrid vehicles, ships, rail transit, solar energy, wind power generation systems, etc. Especially with the development of electric vehicles, the performance requirements of lithium batteries are getting higher and higher. [0003] The existing lithium battery module structure usually includes a shell, and a plurality of battery cells are arranged in the shell. After the positive and negative electrodes of each battery cell are set according to the output specification requirements, each battery cell is connected through a flexible connecting line. At the same time, the welding method is used to connect the output conductive column on the housing through a flexible connecting wire. After that, the entire ...

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Problems solved by technology

[0008] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a lithium battery module, which solves the problem that the existing lithium battery module can only output high voltage and low current, and realizes the lithium battery module The group performs multiple specification output in the case of consistent external structure

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