Electrode member, pole piece, and manufacturing method thereof and battery

A component and electrode technology, applied in the field of batteries, can solve the problems of occupying space, increasing weight and cost, and achieve the effects of reducing production costs, ensuring flow capacity, and better bonding

Pending Publication Date: 2021-07-30
XIAMEN HAICHEN NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But this also introduces two layers of metal foil at the same time, which increases the weight and cost on the basis of the current collector of the composite structure, and takes up a certain amount of space

Method used

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  • Electrode member, pole piece, and manufacturing method thereof and battery
  • Electrode member, pole piece, and manufacturing method thereof and battery
  • Electrode member, pole piece, and manufacturing method thereof and battery

Examples

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Embodiment Construction

[0040] In order to reduce the consumption of metals, control cost, etc., at present, some metal foil collectors are selected to replace a composite collector.

[0041] Such a composite collector is usually constructed in a "sandwich" structure. The composite current collector is a multi-layer composite structure that binds to a polymer film and metal. See figure 1 The composite collector 1 includes a layer of polymer thin film 11, and two metal layers 12 of both sides of its thickness direction.

[0042] The composite collector 1 described above reduces the amount of metal material compared to the collector of the metal foil structure, so that high costs caused by a large amount of metal can be reduced. However, there are some problems in such a composite collector. For example, since the amount of metal material is reduced, and the two metal layer 12 is separated by the middle polymer film 11 in the middle, and the current of the two-layer metal layer 12 in the composite collecto...

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Abstract

The present invention provides an electrode member, a pole piece, a manufacturing method thereof and a battery, and belong to the field of batteries. The electrode member includes a metal wire, a polymer base film having a first through-hole, a conductive layer formed on a surface of the polymer base film, and a metal foil. The conductive layer has a main body portion, a first overlapping portion extending from the main body portion, and a second through hole formed in the first overlapping portion. The metal foil is provided with a second overlapping part provided with a third through hole. The second overlapping part of the metal foil is tightly attached to the first overlapping part of the conductive layer through a metal wire. The metal wire penetrates through the first through hole, the second through hole and the third through hole. The electrode member has relatively smaller weight and lower manufacturing cost and space occupation.

Description

Technical field [0001] The present application relates to the field of battery, and in particular, a electrode member, a pole piece, and a method of fabricating a battery. Background technique [0002] The electrode of the secondary battery is formed by coating an active material on a current collector. [0003] In order to reduce the cost of the battery and weight, some of the plates use a polymer film and metal into a multilayer composite structure as a collector. Since the concentration of fluid reduces the amount of metal, the current is separated by a polymer film on both sides of the current collector, thereby causing the overcurrent ability of the concentration fluid. [0004] Based on the above collector, in order to bring the current of the conductive layer of the metal material, the metal foil and the multilayer structure are welded to the current to conduct the current through the metal foil conduction. [0005] For example, a conductive layer and a metal foil of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/02H01M4/04H01M50/536H01M10/04
CPCH01M4/02H01M4/0404H01M10/0431Y02E60/10Y02P70/50
Inventor 扈锋郭敏
Owner XIAMEN HAICHEN NEW ENERGY TECH CO LTD
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