Battery module and cooling device for battery module

A technology for battery modules and unit cells, applied in secondary batteries, secondary battery manufacturing, batteries, etc., can solve problems such as uneven heat dissipation, reduced charging and discharging efficiency of battery modules, and uneven cooling air volume.

Inactive Publication Date: 2006-08-02
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in this conventional cooling method, the amount of cooling air flowing through each battery separator is not uniform, causing a temperature difference between the unit cells
Therefore, in the conventional battery module, the heat generated from each unit cell cannot be uniformly dissipated, thereby degrading the charging and discharging efficiency of the battery module.

Method used

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  • Battery module and cooling device for battery module
  • Battery module and cooling device for battery module
  • Battery module and cooling device for battery module

Examples

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Embodiment Construction

[0040] Such as figure 1 and 2 As shown, the battery module 100 of this embodiment is a high-capacity battery module, which includes a plurality of unit cells 11 arranged in series and separated from each other.

[0041] In this embodiment, each unit cell has a secondary battery including an electrode assembly including a positive electrode plate and a negative electrode plate inserted with a separator for charging and discharging.

[0042] The battery separator 15 is provided between adjacent unit cells 11 and between the outermost unit cells 11 and the wall of the case 131 to maintain the distance between the unit cells 11 and to support the side of each unit cell 11. wall. An air ventilation passage 17 is formed on each battery separator 15 to allow cooling air having a lower temperature to flow through the unit cells 11 .

[0043] Such as image 3 As shown, at least one through hole extending from the edge 17a to the edge 17b of the battery separator 15 may be formed on...

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PUM

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Abstract

The invention discloses a battery module with a cooling system which enables the capacity of air which flows through each unit battery to be same. The battery module comprises a plurality of battery units which are separated mutually and a shell which is used to contain the battery units inside. The shell is provided with inclined inflow guiding sides which are vertical to the surfaces of a plurality of unit batteries, air inlets which are used to induce temperature control air and air outlets which are used to discharge the air which flows through the unit battery. Since the battery module of the invention is provided with an improved shell air ventilation structure, the capacity of air which is prearranged can be flowed through an air ventilation channel which is arranged between neighboring unit batteries, thereby the temperature on the whole region of unit battery components is distributed evenly, the cooling efficiency of the unit battery components can be optimum, and the charging and discharging efficiency of the battery module can be further increased.

Description

technical field [0001] The present invention relates to a secondary battery, in particular to a secondary battery module with a cooling system for cooling the secondary battery module. Background technique [0002] In general, secondary batteries are based on a rechargeable mechanism, which differ from primary batteries in that there is only an irreversible conversion of chemical energy to electrical energy in primary batteries. Secondary batteries can be classified into low-capacity batteries and high-capacity batteries. Low-capacity batteries are used as power sources for small portable electronic devices such as cell phones, notebook computers, and camcorders, while high-capacity batteries are used as power sources to drive electric motors in gasoline-electric vehicles and the like. [0003] Secondary batteries can have various shapes, such as cylindrical or prismatic. In order to drive a motor for an electric vehicle requiring high power, a plurality of high-capacity s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M10/00H01M10/04H01M2/10H01M10/6556H01M10/6566
CPCY02E60/10Y02P70/50H01M2220/20H01M10/613H01M10/625H01M10/6556H01M10/6563
Inventor 李建求全伦哲金泰容郑京范
Owner SAMSUNG SDI CO LTD
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