Composite pole and battery module with same

A technology of battery modules and poles, which is applied in the field of battery modules, can solve problems such as difficult welding and easy occurrence of welding places, and achieve the effects of good interface resistance, avoid welding, and small composite interface resistance
CN105679991AInactive Publication Date: 2016-06-15HUNAN FORHOME COMPOSITE MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN FORHOME COMPOSITE MATERIALS CO LTD
Publication Date
2016-06-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a composite pole. The composite pole comprises a first end and a second end which are made of different metal materials, wherein the end connected with an external conductor is made of a metal material same with the external conductor; the welding between the same metals has no difficulty in the welding of different metals during the welding process; compared to the welding of different metals, easiness in operation is realized; and meanwhile, the same strength is easy to achieve at a welding point, and the electrocorrosion is unlikely to occur.
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Description

technical field

[0001] The invention relates to the field of batteries, in particular to a composite pole made of different metal materials and a battery module with the composite pole. Background technique

[0002] The power battery pole is the terminal that leads the internal current of the battery to the outside of the battery. In fields such as electric vehicles, it is often necessary to combine individual battery modules in series or in parallel to form a battery pack. Generally speaking, the positive pole of the battery is usually aluminum, and the negative pole is usually copper. Therefore, no matter Whether copper bus bars are used as the external conductors connecting the individual cells or aluminum bus bars are used as the external conductors connecting the individual cells, welding of dissimilar metals occurs in the connection of individual cell modules.

[0003] However, there are not only certain difficulties in the welding process between dissimilar metals, b...

Claims

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