Aluminum foil for 1070 high-performance lithium ion battery and preparation method of aluminum foil

A lithium-ion battery, high-performance technology, applied in secondary batteries, battery electrodes, circuits, etc., can solve the problems of low strength and elongation of 1070 aluminum alloy

Active Publication Date: 2020-10-20
NORTH CHINA ALUMINUM
View PDF11 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a 1070 high-performance aluminum foil for lithi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum foil for 1070 high-performance lithium ion battery and preparation method of aluminum foil
  • Aluminum foil for 1070 high-performance lithium ion battery and preparation method of aluminum foil
  • Aluminum foil for 1070 high-performance lithium ion battery and preparation method of aluminum foil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] The above-mentioned preparation method of aluminum foil for 1070 high-performance lithium ion battery includes the following steps:

[0036] S1. Ingredients, weigh the corresponding raw materials according to the composition design. The raw materials include the 1070 aluminum alloy scrap with a mass percentage of not more than 15%, and the remaining aluminum is pure aluminum ingot. Using the aluminum alloy scrap can realize the reuse of the scrap and reduce the material cost.

[0037] S2, smelting, putting the prepared raw materials into a melting furnace for smelting, and refining the aluminum alloy liquid after the raw materials are completely melted; adding the Al-Ti master alloy to the melting furnace during smelting. During smelting, the charge should be kept clean and the melt quality should be good to meet the requirements of aluminum foil production. Hydrogen content ≤0.12ml / 100Al, refining temperature ≥730℃, refining time ≥30min, refining frequency 3-4h / time.

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an aluminum foil for a 1070 high-performance lithium ion battery, and belongs to the technical field of aluminum foils for lithium ion batteries. The aluminum foil comprises the following components of, in percentage by mass, 0.01%-0.2% of Si, 0.01%-0.25% of Fe, 0.02%-0.05% of Cu, 0.01%-0.03% of Mn, 0.001%-0.03% of Mg, 0.001%-0.05% of Zn, 0.001%-0.05% of V, 0.01%-0.03% of Ti, less than or equal to 0.03% of other single impurity elements and the balance aluminum. The preparation method of the aluminum foil for the 1070 high-performance lithium ion battery comprises the following steps of burdening, smelting, filtering, cast rolling, cold rolling, foil rolling, slitting and packaging. The tensile strength of the 1070 high-performance aluminum foil for the lithium ionbattery prepared by the method is greater than or equal to 210 MPa, and the elongation is greater than or equal to 2.5%, therefore, by adopting the aluminum foil for the 1070 high-performance lithiumion battery and the preparation method of the aluminum foil, the problems of low strength and elongation of the existing 1070 aluminum alloy can be solved.

Description

technical field [0001] The invention belongs to the technical field of aluminum foil for lithium ion batteries, and in particular relates to a 1070 high-performance aluminum foil for lithium ion batteries and a preparation method thereof. Background technique [0002] Due to the advantages of high working voltage, light weight, large specific energy, long cycle life, safety, no memory effect, and no pollution to the environment, lithium-ion batteries have developed rapidly in recent years and become ideal for mobile communications, notebook computers, and digital products. power supply. With the continuous improvement of people's calls for energy conservation, environmental protection and green economy, especially the rapid improvement of new energy vehicles, lithium-ion batteries are also playing an increasingly important role in automotive power batteries and large-scale energy storage batteries. Lithium-ion batteries are being improved and developed in the direction of h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C21/00B21B1/40B22D11/119C22C1/03C22F1/04H01M4/66H01M4/70H01M10/0525
CPCB21B1/40B22D11/119C22C1/026C22C1/03C22C21/00C22F1/04H01M4/662H01M4/70H01M10/0525Y02E60/10
Inventor 温倩曹建峰张深阳高景忠佟颖夏卫华刘建星李晋王进卫杨翠琢孟庆伟
Owner NORTH CHINA ALUMINUM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap