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Grouping method of square battery module

A technology for square batteries and cell modules, which is applied to battery components, batteries, battery assembly machines, etc., can solve the problems of inability to standardize battery modules, low production efficiency, and high production costs, and achieve automatic operation and production Low cost, good quality effect

Active Publication Date: 2016-07-06
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the workload is large and the production cost is high. The key point is that all battery modules cannot be standardized and automated, resulting in low production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A grouping method of a square battery module, comprising the steps of:

[0025] (1) Arrange 3-5 batteries in the same direction as the positive and negative poles, and then stack them up and down in order according to their thickness direction;

[0026] (2) Use thermoplastic film to wind and fix the stacked cells to form a cell module;

[0027] (3) Weld the positive top covers of all the cells in the cell module to one pole piece in parallel, and weld the negative top covers of all the cells to the other pole piece in parallel to form a 3-5 parallel standard battery module ;

[0028] (4) Combine at least two standard battery modules in series or series + parallel arrangement to form a standard battery module with a certain voltage and capacity;

[0029] (5) Compact and pack the surroundings of the standard cell module with a baler to form a fixed cell module;

[0030] (6) Weld the pole pieces on the adjacent standard battery modules in the fixed battery module to for...

Embodiment 2

[0032] A grouping method of 10 parallel 4-series battery modules, comprising the steps of:

[0033] (1) Arrange the 5 batteries in the same direction according to the positive and negative poles, and then stack them up and down in order according to their thickness direction;

[0034] (2) Use thermoplastic film to wind and fix the stacked cells to form a cell module;

[0035] (3) Weld the positive top covers of all the cells in the cell module to one pole piece in parallel, and weld the negative top covers of all the cells to the other pole piece in parallel to form a 5 parallel standard battery module;

[0036] (4) Arrange and combine 8 5-parallel standard cell modules in parallel every 2 to form 4 10-parallel cell module combinations, and then arrange and combine 4 10-parallel cell modules in series to form a certain voltage, capacity of 10 parallel 4 series cell modules;

[0037] (5) Compact and pack the surroundings of the standard cell module with a baler to form a fixe...

Embodiment 3

[0040] A method for forming groups of 4-parallel 8-series battery modules, comprising the steps of:

[0041] (1) Arrange the 4 batteries in the same direction according to the positive and negative poles, and then stack them up and down in order according to their thickness direction;

[0042] (2) Use thermoplastic film to wind and fix the stacked cells to form a cell module;

[0043] (3) Weld the positive top covers of all the cells in the cell module to one pole piece in parallel, and weld the negative top covers of all the cells to the other pole piece in parallel to form a 4 parallel standard battery module;

[0044] (4) Arrange and combine eight 4-parallel standard cell modules in series to form a 4-parallel 8-series cell module with a certain voltage and capacity;

[0045] (5) Compact and pack the surroundings of the standard cell module with a baler to form a fixed cell module;

[0046] (6) Weld the pole pieces on the adjacent standard battery modules in the fixed bat...

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Abstract

The invention discloses a grouping method of a square battery module. The grouping method comprises the following steps of sequentially and vertically laminating battery cores into groups according to a thickness direction after positive electrodes and negative electrodes of the battery cores are arranged in the same direction; fixing the battery cores by a thermoplastic film; separately welding the positive electrodes of all battery cores with a pole plate to be connected in parallel, and welding the negative electrodes of all battery cores with another pole plate to be connected in parallel to form standard battery core modules; arranging and combining at least two standard battery core modules in series or in series and in parallel to form standard battery core modules with determined voltage and capacity; and compacting, packaging and welding the stand battery core modules to obtain the square battery module. According to the grouping method, 3-5 parallel standard battery core modules are taken as a basis, more than three arbitrary battery modules in parallel required by market are combined in series or in series and in parallel, the type number of the standard battery core modules is remarkably reduced to only three types from several types in the past, the standard grouping of the battery module is achieved, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a grouping method of square battery modules. Background technique [0002] At present, due to the different requirements of battery system capacity and voltage for new energy vehicles in the market, there are generally dozens of battery module types such as three-parallel battery structure modules and above battery modules, and each battery module must not only have a corresponding Parts procurement and production, and the production line needs to group battery modules according to different product processes. Different parallel battery modules need to be grouped according to different parallel battery modules. There are many types of battery modules, and it is impossible to realize battery modules. Standardized into groups. And the modules are first compacted and fixed by screws on the partitions and pull rods around them, and then connected by screws. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M2/20H01M50/509
CPCH01M10/0404H01M2220/20H01M50/502Y02E60/10Y02P70/50
Inventor 徐光银陈宇
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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