Cell assembling structure of combined battery

Abstract

The invention discloses a cell assembling structure of a combined battery. The cell assembling structure comprises a plurality of single cells and cell frames. The single cells are connected in serieswith each other, and each single cell is installed in the cell frame. All the cell frames are assembled in parallel with each other. One side surface of each cell frame has an open structure, and twolead-out grooves for leading out the positive and negative lugs of the single cell are arranged on the side of the top end close to the opening direction and a spacer is arranged between the adjacentcell frames. The top two sides of the spacer are provided with outwardly extending fixing bosses. After the spacer is assembled in parallel with the cell frame, the fixing bosses of the spacer are embedded in the lead-out grooves of the cell frame. The connection stability of the cell electrode lugs can be greatly improved, and the influence on the consistency of the whole combined battery causedby the change of the cell resistivity because of the deformation of the electrode lugs can be avoided. Meanwhile, the structure also has the advantages of good heat dissipation performance and high anti-interference capability.

Description

technical field [0001] The invention belongs to the technical field of battery energy storage, and in particular relates to a cell assembly structure of a combined battery. Background technique [0002] The voltage and power of the battery PARK cells are relatively small, which cannot meet the application requirements of energy storage systems and electric vehicles. It is necessary to connect multiple battery PARK cells in series to form a high-voltage battery string. Usually in the assembly process, the single cells are placed in the cell frame, and then the cell frames are assembled side by side. After the frame is assembled, the positive and negative tabs of the adjacent cells are connected by conductive The slices are connected to realize the series connection of each cell. However, because the positive and negative tabs of the single battery core protrude upward from the top of the battery core, and the positive and negative tabs of the battery core do not protrude upw...

AI Technical Summary

Problems solved by technology

However, because the positive and negative tabs of the single battery core protrude upward from the top of the battery core, and the positive and negative tabs of the battery core do not protrude upward along the two sides of the battery core, that is, the distance between the bottom of the positive and negative tabs of the battery core There is a certain vacancy on the side of the battery, so when the positive and negative tabs are bent and connected, there must be some space between the bottom of the positive and negative tabs and the cell frame without any support, so that once our cell frame is in the handling process Vibration, deformation, etc. during use or shaking during use can easily cause deformation or loose connection of our positive and negative tabs, and these conditions will directly lead to changes in the resistivity of the battery cell, which in turn will affect the entire combined battery. Consistency

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