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Battery pack

A technology for battery packs and battery cells, applied to battery pack parts, secondary batteries, circuits, etc., can solve problems such as disconnection or breakage of connection points, battery capacity attenuation, and endangering the safety of battery packs, and achieve the effect of ensuring reliability

Inactive Publication Date: 2013-07-03
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection point between the battery unit and the metal sheet often falls off or breaks due to stress, resulting in a partial fall off during operation. The battery unit does not participate in the power supply, which is the attenuation of the battery capacity.
A battery unit with a disconnected contact or poor contact may even cause sparks due to the difference in voltage and capacity due to some vibrational contact during operation. Once the arc sparks cause a welding short circuit in the battery, it may endanger the integrity of the entire battery pack. Safety

Method used

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Embodiment Construction

[0033] figure 1 It is a sectional side view of a battery pack according to an embodiment of the present invention. Please refer to figure 1 , the battery pack 100 of this embodiment includes a plurality of battery cells 110 , a plurality of conductive units 120 and one to several packaging materials 130 . The conductive unit 120 is electrically connected to the battery unit 110 . The encapsulation material 130 fills the gaps between the battery cells 110 and is closely combined with the surface of the battery cells 110 . For example, the encapsulation material 130 can function as a general glue material to tightly bond the plurality of battery units 110 to each other. Therefore, the battery pack 100 of this embodiment forms an integral structure through the encapsulation material 130 , and the battery units 110 do not generate relative movement, thereby ensuring the reliability of the electrical connection between the conductive unit 120 and the battery unit 110 . In this ...

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Abstract

A packaging structure, packaging material and a packaging method for a battery pack including multiple battery cell units, multiple conductive units and one or more packaging materials are provided. The conductive units are electrically connected to the battery cell units. The packaging material is filled to gaps between the battery cell units and tightly bonded to surfaces of the battery cell units. The battery pack has an integrated structure. Therefore, the battery cell units do not move relative to each other, and breaking of connections between the battery cell units and a conductive metal line or sheet can be avoided.

Description

technical field [0001] The invention relates to a packaging structure, packaging material and packaging method of a battery pack. Background technique [0002] The shortage of oil reserves and rising oil prices are problems that the world needs to face, and electric vehicles are currently the best solution. In the United States, California has already legislated to force car dealers to sell a specific ratio of electric vehicles, and other states will follow suit; France, Germany, Switzerland, Japan, etc. have policies that reward and subsidize the use of electric vehicles or technology research and development, and electric vehicles with practical performance The development has also been completed one after another, and it is being gradually promoted in an experimental trial. The introduction of lithium batteries is the key to the success of the development of electric vehicles, because the weight of lithium batteries is only half that of nickel metal hydride batteries, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/02H01M10/50H01M50/209H01M50/213H01M50/293
CPCH01M10/625H01M10/6551H01M10/6555H01M10/617Y02E60/10H01M50/293H01M50/209H01M50/213
Inventor 施志哲张金泉叶胜发刘礼纶吴世维
Owner IND TECH RES INST