Conductive adhesive, composite current collector with conductive adhesive, battery and object

A technology of conductive adhesive and current collector, used in conductive adhesives, battery electrodes, secondary battery manufacturing, etc., can solve problems such as poor adhesion, and achieve the effects of small surface resistance, improved adhesion, and good electrical conductivity.

Pending Publication Date: 2021-07-23
JIANGSU ADVANCED MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a conductive adhesive and a composite current collector and battery with the condu

Method used

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  • Conductive adhesive, composite current collector with conductive adhesive, battery and object
  • Conductive adhesive, composite current collector with conductive adhesive, battery and object
  • Conductive adhesive, composite current collector with conductive adhesive, battery and object

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[0032] In order to make the object of the present invention, the technical solutions are clearly understood, and the advantages will be more clear, and the embodiments of the present invention will be described in further detail below. It will be understood that the specific embodiments described herein are examples of the embodiments of the present invention, not all of the embodiments of the invention, are not intended to limit the embodiments of the invention, and those of ordinary skill in the art do not do All other embodiments obtained under the premise of creative labor belong to the scope of the invention.

[0033] In the description of the invention, it is to be noted that the terms "center", "in", "upper", "left", "right", "inside", "outside", "top", " The orientation or positional relationship indicated by the bottom "," side "," vertical "," horizontal ", etc. is only for convenience of description of the present invention and simplified description, rather than indica...

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Abstract

The invention discloses a conductive adhesive, a composite current collector with the conductive adhesive, a battery and an object, and relates to the technical field of secondary batteries. The conductive adhesive comprises an adhesive and a nano conductive material, and the nano conductive material is linear; and when the conductive adhesive forms a film, the nano conductive materials are mutually lapped to form a net-shaped conductive layer. According to the invention, the linear nano conductive material is added into the adhesive, the adhesive is smeared on the surface of the current collector base material, the nano conductive materials are mutually lapped to form the net-shaped conductive layer after film formation, the surface resistance is small, the conductivity is good, and the subsequent electroplating process is convenient to implement. Meanwhile, the adhesive is deposited in the pores of the reticular conductive layer and is tightly combined with the current collector base material, so that the adhesive force between the current collector base material and the conductive layer can be improved.

Description

technical field [0001] The present application relates to the technical field of secondary batteries, and in particular to a conductive glue and a composite current collector, battery and object with the conductive glue. Background technique [0002] Traditional lithium-ion battery negative electrode current collector is copper foil, positive electrode current collector is aluminum foil. With the development of technology, lithium-ion batteries have higher and higher requirements in terms of energy density, light weight, and flexibility. At present, the minimum thickness of copper foil mass production is 6 microns, and the minimum thickness of aluminum foil is 8 microns. Although the thinning of copper foil and aluminum foil can effectively reduce the weight of lithium-ion batteries and increase the energy density, due to the bottleneck of technical capabilities, the reduction of thickness will lead to a significant decrease in mechanical strength, which is difficult to pro...

Claims

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Application Information

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IPC IPC(8): C09J133/00C09J175/04C09J167/00C09J123/00C09J9/02H01M4/66H01M10/04
CPCC09J133/00C09J175/04C09J167/00C09J123/00C09J9/02H01M4/667H01M10/04C08K2201/011C08K2201/001C08K2003/0806C08K2003/085C08K3/08C08K3/04Y02P70/50Y02E60/10
Inventor 周予坤王晓明解金库
Owner JIANGSU ADVANCED MATERIAL TECH CO LTD
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