Large-capacity battery pack structure and assembly method thereof

Abstract

The invention discloses a large capacity battery pack structure; a battery component is arranged between a first battery clamping plate and a second battery clamping plate, composite electrode pieces are arranged between the first battery clamping plate and battery component positive and negative end surfaces and the second battery clamping plate and the battery component positive and negative end surfaces, first conductive layers of the composite electrode pieces connect battery monomers of the battery component in series and in parallel, second conductive layers of the composite electrode pieces are fixedly connected with the first battery clamping plate and the second battery clamping plate; an assembly method includes the following steps: respectively arranging the composite electrode pieces in the first battery clamping plate and the second battery clamping plate; arranging the battery component; fixedly connecting the first battery clamping plate and the second battery clamping plate; and connecting the composite electrode pieces and positive and negative electrodes of each battery monomer by welding. In the way, the large capacity battery pack structure can bear large current discharge, has the advantages of simple structure, good stability, and strong anti shock and anti vibration ability, no additional work fixture is needed for fixing the composite electrode pieces, the operation is simple, and the assembly cost is low.

Description

technical field [0001] The invention relates to a large-capacity battery pack structure and an assembly method thereof, in particular to a large-capacity battery pack structure and an assembly method for garden outdoor tools. Background technique [0002] Due to the improvement of human awareness of environmental protection, many gasoline engine power systems are gradually evolving into electric drive systems. The reason is that electric drive systems have no exhaust emissions during use, do not pollute the environment, and are used as power supplies. Lithium-ion batteries have high energy density. Therefore, lithium battery packs with large capacity have become an important part of the new energy industry. These large-capacity battery packs have certain technical parameter requirements, such as total voltage and total capacity. Cylindrical lithium battery cells are connected in series and parallel to meet the capacity and voltage requirements of the battery pack. [0003]...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the lithium-ion battery cells are usually fastened with plastic parts, and then a nickel sheet is placed on the outside of the plastic part for welding to realize the series-parallel connection of the battery. After the completion, the production efficiency is low. Because the nickel sheet has no positioning of plastic parts, the stability is poor, the shock and vibration resistance is poor, the structure is complex, the convenience of assembly and manufacturing is very poor, the efficiency is low, and the installation cost is high.

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