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Battery and battery pack comprising the battery

A technology for battery packs and battery packs, applied in secondary batteries, secondary battery manufacturing, battery temperature control, etc., can solve the problem of low energy volume and achieve high energy volume ratio, effective heat dissipation, volume and weight reduction

Inactive Publication Date: 2010-06-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to overcome the defect of low energy volume ratio of existing battery modules, and provide a battery pack with a higher energy volume ratio

Method used

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  • Battery and battery pack comprising the battery
  • Battery and battery pack comprising the battery
  • Battery and battery pack comprising the battery

Examples

Experimental program
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Embodiment approach

[0026] According to an embodiment of the present invention, the battery pack further includes a casing 2 containing the at least one single cell 1, the fluid channel 5 is located between the outer surface of the single cell 1 and the inner surface of the casing 2, and the inflow port 3 and the outflow port 4 are located on the housing 2 respectively.

[0027] In this embodiment, after the unit cell 1 is placed in the case 2, the space formed between the unit cell 1 and the case 2 by the space between the unit cell 1 and the case 2 forms the above-mentioned Fluid channel 5. The fluid channel 5 can choose different paths according to different structures of the battery pack, as long as at least a part of the electrode terminal of the single cell 1 is located in the fluid channel 5 to meet the requirements of heat exchange with the fluid medium. In this case, the fluid channel 5 is formed by the case 2 and the single cell 1 .

[0028] According to another embodiment of the pres...

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PUM

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Abstract

The invention discloses a battery, which comprises at least a monocell and a fluid passage around the at least one monocell. The fluid passage is provided with an inlet and an outlet which are communicated with each other, wherein at least part of an electrode terminal of the monocell is positioned in the fluid passage. The invention also discloses a battery pack, which comprises a plurality of batteries which are arranged in order, wherein the battery is the battery provided by the invention; and the inlets and outlets of the plurality of batteries are mutually communicated. In the battery and the battery pack provided by the invention, clapboards arranged between the monocells are omitted, so that the weights and volumes of the battery and the battery pack are greatly reduced while effective heat dissipation is realized, and the energy and volume ratios of the battery and the battery pack are improved.

Description

technical field [0001] The invention relates to the field of secondary batteries, more specifically, to a battery pack of a secondary battery and a battery pack including the battery pack. Background technique [0002] Since the secondary battery has the characteristics of being able to be charged multiple times to be used repeatedly, as a device for supplying electric energy instead of a primary battery, secondary batteries (such as lithium-ion batteries) are increasingly used in various In workplaces, for example, it can be applied to various portable electronic devices, or applied to electric vehicles or hybrid vehicles. [0003] However, the secondary battery generates a large amount of heat during charging and discharging, which not only affects the performance of the battery, but also may cause explosion of the secondary battery if the heat accumulates to a certain extent. Therefore, it is very important for a secondary battery to have better heat dissipation performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M10/04H01M10/613H01M10/65H01M10/6557
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 郑卫鑫
Owner BYD CO LTD
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