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Battery, battery cell, current collector and preparation method thereof

A technology for battery cells and current collectors, applied in battery electrodes, electrode carriers/current collectors, circuits, etc., can solve the problems of high cost, insufficient toughness, high current collector power, etc. The effect of improving energy density and improving production efficiency

Active Publication Date: 2021-08-03
SHENZHEN QIANHAI YOURONG TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the thickness of the current copper foil and aluminum foil, the power of the current collector is too large. If the thickness of the copper foil and aluminum foil is reduced, because the material is brittle and the toughness is insufficient, the thinner copper foil and aluminum foil will not be conducive to the battery electrode. Production
In addition, the weight of copper foil or aluminum foil is heavy, resulting in low energy density and high cost of the battery

Method used

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  • Battery, battery cell, current collector and preparation method thereof
  • Battery, battery cell, current collector and preparation method thereof
  • Battery, battery cell, current collector and preparation method thereof

Examples

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Embodiment Construction

[0046] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0047] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences ot...

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Abstract

The present application discloses a battery, a battery cell, a current collector and a preparation method thereof. The current collector includes a base film and a first metal layer, the first metal layer is disposed on the base film, and the base film is non-woven fabric. The present application can improve the tensile strength and toughness of the current collector, reduce the weight and thickness of the current collector, and reduce the cost.

Description

technical field [0001] The present application relates to the technical field of batteries, and relates to a battery, a battery cell, a current collector and a preparation method thereof. Background technique [0002] The current collector is used to collect the current generated by the active material of the battery to form an external current output. Existing current collectors usually use copper foil or aluminum foil, wherein, the current collector of the negative electrode sheet usually uses copper foil, and the current collector of the positive electrode sheet usually uses aluminum foil. [0003] Due to the thickness of the current copper foil and aluminum foil, the power of the current collector is too large. If the thickness of the copper foil and aluminum foil is reduced, because the material is brittle and the toughness is insufficient, the thinner copper foil and aluminum foil will not be conducive to the battery electrode. Production. In addition, copper foil or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/66
CPCH01M4/667Y02E60/10
Inventor 余玉英
Owner SHENZHEN QIANHAI YOURONG TECH LTD
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