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Secondary battery module

A technology for secondary batteries and battery packs, applied to secondary batteries, batteries, battery pack components, etc., can solve problems such as temperature changes, heat can not be uniformly dissipated, and heat conduction medium flow cannot be kept constant.

Inactive Publication Date: 2006-06-07
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the heat generated by each unit cell cannot be dissipated evenly, the charging and discharging efficiency is reduced.
[0013] In addition, in this conventional cooling method, since the flow rate of the heat transfer medium circulating through the barrier ribs between the unit cells cannot be kept constant, temperature variation occurs among the unit cells.
Since the heat generated between the unit cells cannot be dissipated evenly, resulting in a decrease in charging and discharging efficiency

Method used

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Examples

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Embodiment Construction

[0040] Below, the embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can implement them. However, the present invention is not limited to these examples, and various modifications can be made.

[0041] see figure 1 with figure 2 , the battery module 100 is a large-capacity battery module including a plurality of unit cells 11 arranged at predetermined intervals.

[0042] Each unit cell 11 has an electrode assembly having a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. In this embodiment, unit cell 11 has a substantially rectangular shape (with a pair of long sides and a pair of short sides in this embodiment).

[0043] A battery barrier rib 15 is provided between the unit cells 11 to support the side surfaces of the unit cells 11 so as to maintain the distance between the unit cells.

[0044] A circul...

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PUM

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Abstract

The invention discloses a secondary battery module, which comprises a unit cell group having a plurality of unit cells and a case housing the unit cell group inside, and the plurality of unit cells are arranged at predetermined intervals with each other. A heat transfer medium for controlling the temperature of the plurality of unit cells circulates in the case. The first distribution plate is fixedly disposed in the casing adjacent to the battery pack, and distributes the heat transfer medium among the plurality of battery cells. The second distribution plate is slidably disposed on the first distribution plate to distribute the heat transfer medium among the plurality of unit cells.

Description

technical field [0001] The invention relates to a secondary battery module, in particular to a cooling structure for a secondary battery module formed by connecting multiple unit batteries. Background technique [0002] Generally, a secondary battery can be charged and discharged unlike a non-rechargeable primary battery. A small-capacity secondary battery consisting of a single battery is generally used as a power source for various portable small electronic devices, such as cellular phones, notebook computers, and camcorders. A large-capacity secondary battery consisting of multiple batteries interconnected in one package is generally used as an engine drive power source for a hybrid electric vehicle (HEV). [0003] Secondary batteries can be made in various shapes. Generally, secondary batteries can be classified into cylindrical batteries or prismatic batteries, depending on the external shape of the battery. [0004] A large-capacity secondary battery formed by conne...

Claims

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Application Information

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IPC IPC(8): G05D7/00H01M2/10H01M10/00
CPCY02E60/10H01M2220/20H01M10/625H01M10/6556H01M10/6562H01M50/24
Inventor 李建求全伦哲金泰容
Owner SAMSUNG SDI CO LTD
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