Modular soft package battery pack and electric equipment

Abstract

The invention discloses a modular soft package battery pack, which comprises a plurality of battery cells and a module shell, wherein all the battery cells are electrically connected through corresponding tabs, all the battery cells are fixed in the module shell, and the module shell is made of a weldable material. The invention further discloses electric equipment comprising the modular soft package battery pack. The modular soft package battery pack and the electric equipment provided by the invention have the advantages that the size is small, the splicing of a plurality of soft package battery packs and the fixing with a battery box are facilitated, the connection is firm after the plurality of soft package battery packs are spliced, and the heat dissipation performance is good.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a modular soft pack battery pack and electrical equipment. Background technique [0002] Lithium-ion batteries have the advantages of large battery capacity and small size. Lithium-ion batteries often include a battery box and a number of soft-pack battery packs. The soft-pack battery pack is formed by connecting multiple batteries in series and parallel, such as figure 1 As shown, the cells 1 of the existing pouch battery pack are fixed by the frame 6, and the frames 6 of each cell 1 are fixed in series by long connecting rods and bolts, so that each cell 1 is overlapped and fixed to form a pouch battery pack After a plurality of battery cells 1 and their frames 6 are connected in series to form a pouch battery pack, then the multiple pouch battery packs are spliced ​​through bolts, connecting frames, etc. etc. fixed in the battery box, this kind of soft pack battery pack mainly has t...

AI Technical Summary

Problems solved by technology

Lithium-ion batteries often include a battery box and a number of soft-pack battery packs. The soft-pack battery pack is formed by connecting multiple batteries in series and parallel, such as figure 1 As shown, the cells 1 of the existing pouch battery pack are fixed by the frame 6, and the frames 6 of each cell 1 are fixed in series by long connecting rods and bolts, so that each cell 1 is overlapped and fixed to form a pouch battery pack After a plurality of battery cells 1 and their frames 6 are connected in series to form a pouch battery pack, then the multiple pouch battery packs are spliced ​​through bolts, connecting frames, etc. etc. fixed in the battery box, this kind of soft pack battery pack mainly has the following problems: 1. Splicing through bolts, connecting frames, etc., the connecting frames need to take up a lot of space, and the combined body formed by the connection is bulky, which is not easy to install and arrange; 2. 1. The fixed connection between each pouch battery pack requires a large number of bolts and connecting frames, and the fixed connection of each pouch battery pack is inconvenient; 3. Each pouch battery pack is connected by a connecting frame and bolts, and the connection is unstable and prone to misalignment; 4. There are gaps between the spliced ​​soft pack battery packs. The soft pack battery packs will generate heat when they work, and the air in the gaps between the soft pack battery packs will form an insulation layer, which is not conducive to heat dissipation during work.

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