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Thermal conductive mechanism for battery pack made up of stack of battery modules

A battery module and stack technology, applied in battery pack components, secondary batteries, fuel cell additives, etc., can solve problems such as difficult battery pack performance and temperature difference

Inactive Publication Date: 2013-10-23
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes a temperature difference between the peripheral portion and the central portion of the battery cell, making it difficult to sufficiently provide the performance of the battery pack

Method used

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  • Thermal conductive mechanism for battery pack made up of stack of battery modules
  • Thermal conductive mechanism for battery pack made up of stack of battery modules
  • Thermal conductive mechanism for battery pack made up of stack of battery modules

Examples

Experimental program
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Embodiment Construction

[0029] Embodiments will be described below with reference to the drawings. It should be noted that reference to "connection" in the following discussion means "electrical connection", although not specifically stated. Each drawing shows only components necessary to explain each embodiment, and does not necessarily show all components constituting the embodiment. References to "upper," "lower," "left," and "right" in the following discussion are based on each drawing. "Contact" means either "direct contact" or "indirect contact". "Hole" means either "through hole" or "cutout portion".

[0030] The following will refer to Figure 1 to Figure 10 Let's discuss the first embodiment. figure 1 A sub-battery module 10 comprising a plurality (in this embodiment three) of battery cells 11 , a heat transfer mechanism 12 , a plate 13 is shown.

[0031] The battery cells 11 are arranged on the board 13 aligned with each other in the lengthwise direction of the board 13 . Each battery...

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PUM

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Abstract

The invention provides a thermal conductive mechanism for a battery pack made up of stack of battery modules. Disclosed is a thermal conductive mechanism for a battery pack made up of a stack of a plurality of sub-battery modules each of which includes a plurality of battery cells arrayed thereon. The sub-battery modules each has opposed major surfaces and are laid to overlap each other in a direction perpendicular to the major surfaces. The thermal conductive mechanism is equipped with plates provided one for each of the sub-battery modules. Each of the plates has a given number of the battery cells disposed thereon and also has heat transfer surfaces extending in a planar direction of the plate. The heat transfer surfaces are placed in one of direct and indirect contact with the given number of the battery cells to achieve transfer of heat therebetween, thereby equalizing the temperature in each of the battery cells and also minimizing a difference in temperature among the battery cells.

Description

technical field [0001] The present disclosure generally relates to a heat transfer mechanism for a battery pack composed of a plurality of battery modules. Background technique [0002] Japanese Patent First Publication No. 2004-031281 teaches an example of a technique for improving the cooling mechanism of an electrode stack type battery pack designed to squeeze both sides of each battery cell without increasing the number of its parts And enhance the cooling capacity. In particular, the cooling mechanism is equipped with a plurality of pairs of pressing plates, each pair of pressing plates presses the side surface of each battery cell through a portion extending outward at the periphery of the battery cell, thereby helping to dissipate heat from the battery cell . [0003] Overall, the performance of a battery cell depends on its temperature. Therefore, the achievement of full performance (eg, charging or discharging) of a battery cell requires that the temperature of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M8/04H01M50/211H01M50/242H01M50/264
CPCH01M10/5032Y02E60/12H01M10/50H01M10/5055H01M2/1077Y02E60/50H01M10/5053Y02E60/122H01M10/647H01M10/6555H01M10/6554Y02E60/10H01M50/264H01M50/242H01M50/211
Inventor 三浦功嗣龟冈辉彦中村雅也大木岛俊新开龙一郎山口耕平内山雅贵开田成人床并和宏森田道彦近藤博
Owner DENSO CORP