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Battery

A battery and pole core technology, applied in the field of battery assembly, can solve problems such as safety hazards, insulation failure, diaphragm damage, etc., and achieve the effect of improving the safety of use and reducing the risk of short circuit

Pending Publication Date: 2022-06-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Separators that are squeezed during battery use may break and lead to insulation failure, which poses a safety hazard

Method used

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Embodiment Construction

[0047] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

[0049] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0050] In all examples shown and discussed herein, any specific values ​​should be construed as illustrative only and not limiting. Accordingly, other instances of the exemplary ...

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Abstract

The invention discloses a battery which comprises a pole core, a first electrode lug is arranged at one end of the pole core, and a second electrode lug is arranged at the other end of the pole core; the first space ring is arranged at one end of the pole core, and the first space ring is provided with a first channel for the first pole lug to pass through; the second space ring is arranged at the other end of the pole core, and the second space ring is provided with a second channel for a second pole lug of the battery to pass through; the connecting piece is connected with the first space ring and the second space ring so as to fix the first space ring and the second space ring; one part of the first lead-out sheet extends into the first channel to be connected with the first tab, and one part of the second lead-out sheet extends into the second channel to be connected with the second tab. According to the battery disclosed by the embodiment of the invention, the first space ring, the second space ring and the connecting piece are matched to play a role in supporting the first tab and the second tab, so that the short-circuit risk of the battery is reduced, and the use safety of the battery is improved.

Description

technical field [0001] The present application relates to the technical field of battery assembly, and more particularly, to a battery. Background technique [0002] At present, in the secondary battery, the pole core lead-out structure (pole tab) is usually bent in different situations after being connected with the battery lead-out structure. Form a certain angle with the boundary line of the pole piece dressing. When the root of the tab is seriously inclined, it will cross the diaphragm, so that the tab of one pole and the pole piece of the other pole, or the tab of the pole and the pole piece of the other pole are in contact, resulting in a short circuit of the secondary battery. The angle formed by the pole tab and the boundary line of the pole piece dressing, that is, the "tab bending angle" or "ζ angle". [0003] like figure 1 Shown: Taking the positive tab (Al foil) as an example, the positive tab overwhelms the diaphragm after being bent. When the positive tab is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/593H01M50/531
CPCH01M50/531H01M50/593
Inventor 高新邓洞军王信月张达罗文
Owner BYD CO LTD