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Paper-based composite structure and battery

A composite structure, paper-based technology, applied to battery electrodes, secondary batteries, structural parts, etc., can solve problems such as easy deformation, achieve the effect of preventing falling off, reducing falling off, and preventing easy falling off

Pending Publication Date: 2018-07-13
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the plastic has a high elongation rate, and the high elongation rate is easy to deform

Method used

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  • Paper-based composite structure and battery
  • Paper-based composite structure and battery
  • Paper-based composite structure and battery

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] figure 1 A schematic diagram showing a paper-based composite structure according to an embodiment of the present invention. The paper-based composite structure can be used in batteries, as a current collector, or in other scenarios, which is not limited in the present invention.

[0035] see figure 1 As shown, the paper-based composite structure may include: a paper substrate 1, and the upper and lower surfaces of the paper substrate 1 ar...

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Abstract

The invention discloses a paper-based composite structure and a battery. The paper-based composite structure comprises a paper substrate, wherein the upper surface and the lower surface of the paper substrate are respectively and sequentially plated with an adhesion enhancing layer and a metal coating. The paper-based composite structure provided by the invention not only can realize the light weight of the battery and improve the energy density, but also can prevent the metal coating from falling off easily, and can realize low percentage of elongation under the same compaction density.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a paper-based composite structure and a battery. Background technique [0002] The negative current collector of traditional lithium-ion batteries is copper foil, and the positive current collector is aluminum foil. With the development of lithium battery technology, high energy density, light weight and flexibility of lithium ion batteries have become people's pursuit. Thinning copper / aluminum foil (the total mass of positive and negative current collectors accounts for about 14%-18% of the total mass of the battery) can realize the lightweight of lithium-ion batteries, increase energy density, and reduce costs, but due to the limitations of preparation technology , the thickness of copper / aluminum foil is difficult to reduce (currently copper foil can be mass-produced to 6μm, and aluminum foil can be mass-produced to 8μm); in addition, after the copper / aluminum f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/66H01M10/0525
CPCH01M4/667H01M10/0525Y02E60/10
Inventor 刘文卿严佐毅
Owner CONTEMPORARY AMPEREX TECH CO
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