GB/T 22648-2023Aluminium foils used for aluminium-plastic composite tube and packaging pouch of battery (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 22648-2008 "Aluminum and Aluminum Alloy Foil for Hoses". Compared with GB/T 22648-2008, except for structural adjustments In addition to editorial changes, the main technical changes are as follows:

a) The grade, status, and size specifications have been changed (see 4.1, 3.1.1 of the 2008 edition);

b) Added the chemical composition, aluminum foil surface roughness, and aluminum foil surface contact angle of the 8A21 grade (see Chapter 5), and changed the local thickness Permissible deviations in height and width and mechanical properties, pinholes, adhesion, joints, appearance quality requirements (see Chapter 5, 2008 edition 3.3.1, 3.3.2, 3.3.3, 3.4, 3.5, 3.6, 3.8, 3.10);

c) Added bending performance test methods, surface roughness test methods, and contact angle test methods (see Chapter 6).

1 Scope

This document specifies the product classification, technical requirements, test methods, inspection rules, markings, and packaging of aluminum-plastic composite hoses and aluminum foil for battery soft packages, loading, transportation, storage and quality certificate and order form (or contract) content.

This document applies to aluminum foil for aluminum-plastic composite hoses (hereinafter referred to as "hose foil") and aluminum foil for battery soft packs (hereinafter referred to as "battery soft packs foil").

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 2523 Method for measurement of surface roughness, peak number and waviness of cold-rolled metal sheets and strips

GB/T 3190 Chemical composition of deformed aluminum and aluminum alloys

GB/T 3199 Packaging, marking, transportation and storage of aluminum and aluminum alloy processed products

GB/T 7999 Photoelectric direct reading emission spectrum analysis method for aluminum and aluminum alloys

GB/T 8005.1 Aluminum and aluminum alloy terminology Part 1: Products and processing techniques

GB/T 8170 Numerical rounding rules and representation and determination of limit values

GB/T 17432 Sampling method for chemical composition analysis of deformed aluminum and aluminum alloys

GB/T 20975 (all parts) Chemical analysis methods for aluminum and aluminum alloys

GB/T 22638.1 Aluminum foil test methods Part 1: Determination of thickness

GB/T 22638.2 Aluminum foil test methods Part 2: Detection of pinholes

GB/T 22638.3 Aluminum foil test methods Part 3: Adhesion testing

GB/T 22638.5-2016 Aluminum foil test methods Part 5: Testing of wettability

GB/T 22638.11 Aluminum foil test methods Part 11: Testing of mechanical properties

GB/T 26492.4 Defects in deformed aluminum and aluminum alloy ingots and processed products Part 4: Aluminum foil defects

GB/T 33143-2022 Aluminum and aluminum alloy foil for lithium-ion batteries

GB/T 42916 Aluminum and aluminum alloy product identification

3 Definition of terms

The terms and definitions defined in GB/T 8005.1 and GB/T 26492.4 apply to this document.

4 Product categories