Battery module, battery pack, electric vehicle and power grid system

A technology for battery modules and battery packs, which is applied to battery components, secondary batteries, circuits, etc., and can solve problems such as uneven heat dissipation, slow heat transfer and heat dissipation, and large space occupation

Pending Publication Date: 2019-04-26
ZHEJIANG JIAXI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing heat exchange and heat dissipation devices have problems such as slo

Method used

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  • Battery module, battery pack, electric vehicle and power grid system
  • Battery module, battery pack, electric vehicle and power grid system
  • Battery module, battery pack, electric vehicle and power grid system

Examples

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] It should be noted that when a component is said to be “fixed” to another component, it may be directly on the other component or there may be an intermediate component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component...

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Abstract

The invention provides a battery module. The battery module comprises a shell, a plurality of cylindrical battery cells and a heat exchanging device. The shell comprises a first panel and a second panel which are oppositely arranged; the multiple cylindrical battery cells are arranged in the shell and mounted on the second panel and extends toward the first panel; and the heat exchanging device ismounted in the shell and comprises a plurality of heat exchanging plates, and the heat exchanging plates are filled with heat transfer working media. The invention further provides a battery pack with the battery module, an electric vehicle and a power grid system. Heat generated in the cylindrical battery cell charging and discharging processes can be quickly absorbed by the heat exchanging plates filled with the heat transfer working media, and the heat is spread equally, and thus the heat in the battery module is quickly dissipated; and in addition, the battery module can be quickly subjected to heat dissipating, and thus the situation that normal using of the battery pack, the electric vehicle and the power grid system is affected or safety accidents occur due to insufficient heat dissipating of the battery module can be avoided.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module, a battery pack, an electric vehicle and a grid system. Background technique [0002] The battery pack is composed of multiple battery cells connected in series and parallel to form a battery module, and then multiple battery modules are connected in series and parallel to form a battery pack with a certain voltage and capacity, which is formed inside a closed box. The battery cells in the battery pack will generate heat during charging and discharging. If the heat cannot be dissipated in time, it will affect the use of the battery pack, shorten the life of the battery pack, or even cause a safety accident. Conversely, if the battery pack is in a low-temperature environment, its lifespan will be shortened, its charge and discharge capacity will drop sharply, and the battery utilization efficiency will be low. Therefore, a heat exchange device is usually provid...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/6555H01M10/6557H01M50/204
CPCH01M10/613H01M10/6555H01M10/6557H01M50/20Y02E60/10
Inventor 张毅鸿郭鹏郭良银龚青龙周颖姜延吉
Owner ZHEJIANG JIAXI TECH CO LTD
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