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A square battery cell group of an energy storage battery module

A technology for energy storage battery modules and square cells, which is applied in small-sized batteries/battery packs, large-sized batteries/battery packs, battery pack components, etc. It can improve reliability and safety, prevent expansion and deformation, and improve safety.

Pending Publication Date: 2019-01-18
江苏安时商用储能系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current screw-connected energy storage battery modules based on square cells are all single-row battery stack structures, and a single battery module will use a battery box to load multiple battery modules and other mechanical and electrical components; This will result in low energy density of the battery module and high cost of assembly, and the later cascade utilization needs to be reconfigured with a single single-row cell module as the basic unit, which increases the cost of the cascade and reduces the reliability of the cascade product. sex

Method used

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  • A square battery cell group of an energy storage battery module
  • A square battery cell group of an energy storage battery module
  • A square battery cell group of an energy storage battery module

Examples

Experimental program
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Embodiment 1

[0021] Such as Figure 7 As shown, the schematic diagram of 16 rows and 2 rows of combined battery module units, the square cells of the energy storage battery module are grouped with three kinds of plastic brackets, which are universal left bracket, universal right bracket, and universal middle bracket; The plastic bracket can be combined with the square battery alone to form a battery unit. After the three battery units are combined with each other, the horizontal expansion and vertical expansion of the battery unit can be realized; the longitudinal expansion is assembled by a long screw to form 16 rows. As for the cell combination unit, the horizontal expansion is assembled through the horizontal buckles on three kinds of plastic brackets to form 2 rows of cell combination units, and finally form 16 rows of 2 rows of cell combination units. The universal left bracket (such as figure 1 As shown) is provided with the first air vent 1 between the plastic brackets, the first p...

Embodiment 2

[0025] Such as Figure 8 As shown, in the 12-row and 4-column battery module combination unit, the square cells of the energy storage battery module are grouped with three kinds of plastic brackets, which are the universal left bracket, the universal right bracket, and the universal middle bracket; The plastic bracket can be combined with the square battery alone to form a battery unit. After the three battery units are combined with each other, the horizontal expansion and vertical expansion of the battery unit can be realized; the longitudinal expansion is assembled through a long screw to form 12 rows. As for the cell combination unit, the horizontal expansion is assembled through three kinds of horizontal buckles on the plastic brackets to form 4 rows of cell combination units, and finally form 12 rows of 4 rows of cell combination units. The universal left bracket (such as figure 1 As shown) is provided with the first air vent 1 between the plastic brackets, the first pr...

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Abstract

The invention discloses a square battery cell grouping mechanism of an energy storage battery module, which adopts three kinds of plastic supports. The three kinds of plastic brackets can be separately combined with the square cell to form the cell unit. After the three kinds of cell units are combined with each other, the cell unit can be expanded transversely and longitudinally. The longitudinalexpansion is carried out by assembling N rows (N >= 2) of cell combination units through long screws, and the transverse expansion is carried out by performing assembling to form M rows (M >= 2) of cell combination units through three kinds of transverse fasteners on plastic supports, and finally N rows andM lines of cell combination units are formed. This combination greatly improves the flexibility of battery module grouping size, and makes the integrated energy storage system adapt to different application scenarios to the maximum extent. All the cells are mounted inside the plastic bracket, which enhances the insulation protection of the battery module and provides sufficient space for the expansion and deformation of the cell, thus improving the reliability and safety of the batterymodule.

Description

technical field [0001] The invention relates to new energy storage technology, in particular to a grouping mechanism of energy storage battery modules based on square batteries. Background technique [0002] Normally, a battery energy storage system is composed of a large number of single batteries connected in series and parallel to form a complete battery energy storage system to realize the storage and release of electric energy on a certain scale. [0003] However, the current screw-connected energy storage battery modules based on square cells are all single-row battery stack structures, and a single battery module will use a battery box to load multiple battery modules and other mechanical and electrical components; This will result in low energy density of the battery module and high cost of assembly, and the subsequent cascade utilization needs to be reconfigured with a single single-row cell module as the basic unit, which increases the cost of the cascade and reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M50/10
CPCH01M50/10Y02E60/10
Inventor 李伟孙锋孟宪侠
Owner 江苏安时商用储能系统有限公司
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