Passa alle informazioni sul prodotto
1 su 12

PayPal, credit cards. Download editable-PDF and invoice in 1 second!

GB/T 33143-2022 English PDF (GBT33143-2022)

GB/T 33143-2022 English PDF (GBT33143-2022)

Prezzo di listino $350.00 USD
Prezzo di listino Prezzo scontato $350.00 USD
In offerta Esaurito
Spese di spedizione calcolate al check-out.
Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 33143-2022
Historical versions: GB/T 33143-2022
Preview True-PDF (Reload/Scroll if blank)

GB/T 33143-2022: Aluminium and aluminium alloy foils for lithium ion batteries
GB/T 33143-2022
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
CCS H 61
Replacing GB/T 33143-2016
Aluminum and Aluminum Alloy Foils for Lithium-Ion Batteries
ISSUED ON: MARCH 09, 2022
IMPLEMENTED ON: OCTOBER 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Classification ... 6
5 Technical Requirements ... 7
6 Test Methods ... 15
7 Product Qualification ... 17
8 Process Control ... 17
9 Inspection Rules ... 18
10 Marking, Packaging, Transportation, Storage and Quality Certificate ... 21
11 Contents of Order Form (or Contract) ... 22
Appendix A (Informative) Online Test Methods of Pinhole and Hole ... 23
Appendix B (Informative) Online Detection of Surface Defects ... 26
Appendix C (Informative) Product Qualification ... 29
Appendix D (Informative) Process Control ... 33
Bibliography ... 38
Aluminum and Aluminum Alloy Foils for Lithium-Ion Batteries
1 Scope
This Document specifies the classification, technical requirements, test methods, product
qualification, process control, inspection rules and marking, packaging, transportation, storage
and quality certificates, as well as purchase orders (or contracts) of aluminum and aluminum
alloy foils for lithium-ion batteries.
This Document applies to aluminum and aluminum alloy foils (hereinafter referred to as
"aluminum foils") for lithium-ion battery current collectors.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
GB/T 3190 Wrought Aluminum and Aluminum Alloys - Chemical Composition Limits
GB/T 3199 Wrought Aluminum and Aluminum Alloy Products - Packing, Marking,
Transporting and Storing
GB/T 7999 Optical Emission Spectrometric Analysis Method of Aluminum And
Aluminum Alloys
GB/T 8005.1 Aluminum and Aluminum Alloys - Terms and Definitions - Part 1: Product
and Method of Processing and Treatment
GB/T 8170 Rules of Rounding off for Numerical Values and Expression and Judgement of
Limiting Values
GB/T 16865 Test Pieces for Tensile Test for Wrought Aluminum and Magnesium Alloy
Products
GB/T 17432 Methods of Sampling for Analyzing the Chemical Composition of Wrought
Aluminum and Aluminum Alloy
GB/T 20975 (all parts) Methods for Chemical Analysis of Aluminum and Aluminum
Alloys
5.8.1.4 The coating of the coating foil shall be uniform, and the coating area shall not be allowed
to expose the substrate.
5.8.2 End face
The end face of the aluminum foil is not allowed to have arrows, stains, bumps and other defects,
and dense aluminum powder with visible reflected light is not allowed.
6 Test Methods
6.1 Chemical composition
6.1.1 The chemical composition analysis method of the light foil and coating foil substrate shall
comply with the provisions of GB/T 20975 or GB/T 7999; and the arbitration analysis shall
adopt the method stipulated in GB/T 20975. The "Al" content is calculated according to the
method specified in GB/T 3190. When calculating the "Al" content, the sum of the analytical
values of the conventional analytical elements and the unconventional analytical elements
suspected to be excessive is taken as the "sum of element content".
6.1.2 The determination of the analysis value shall adopt the rounding-off comparison method;
the rounding-off rules of the numerical value shall be carried out according to the relevant
provisions of GB/T 8170; and the rounding-off digits shall be consistent with the limit digits
specified in Table 2 or GB/T 3190.
6.1.3 The chemical composition analysis method for the coating of the coating foil shall be
determined through negotiation between the supplier and the purchaser.
6.2 Dimensional deviation
6.2.1 Dimension rounding-off
Dimensional measurements are not allowed to be rounded-off; and the method for determining
the limit value shall comply with the provisions of GB/T 8170.
6.2.2 Thickness
The thickness of the light foil and the coating foil substrate shall be determined according to
the method specified in GB/T 22638.1. When the purchaser requires the selection of non-
standard area samples to measure the thickness, it shall be indicated in the order form (or
contract). The measurement method of the thickness extreme difference shall be determined
through negotiation between the supplier and the purchaser.
6.2.3 Areal Density
6.2.3.1 The areal density of the light foil and the coating foil substrate shall be determined
according to the method specified in GB/T 22638.10. When the purchaser requires the selection
of non-standard area samples to measure the surface density, it shall be indicated in the order
form (or contract). The measurement method of areal density extreme difference shall be
determined through negotiation between the supplier and the purchaser.
6.2.3.2 The areal density for the coating of the coating foil shall be determined according to the
method specified in GB/T 22638.10, or determined through negotiation between the supplier
and the purchaser.
6.2.4 Width
Measure with a film ruler or other tool of corresponding accuracy.
6.2.5 Length
Measure with tools of corresponding accuracy.
6.2.6 Burrs, cracked edges
Select the trimming positions on both sides of the aluminum foil roll, and cut the sample
including the trimming edge of the aluminum foil along the trimming edge, and the length of
the sample shall be greater than 30cm. Under a microscope (optical magnification should be no
less than 100×, digital magnification should be no less than 500×), visually check the
smoothness of the edge of the sample, crack defects and measure the burr size. It should observe
the edge of the aluminum foil from multiple angles.
6.2.7 Plate shape
6.2.7.1 Under the unit tension of 8N/mm2, visually inspect the aluminum foil for poor plate
shape defects.
6.2.7.2 Under the unit tension of 8N/mm2, the wave height of the aluminum foil wave is
measured by the off-line plate shape testing device.
6.2.8 Staggered layer
Measure by tools of corresponding precision.
6.3 Tensile mechanical properties at room temperature
The tensile mechanical properties at room temperature shall be tested according to the method
specified in GB/T 16865. The test gauge length is 50mm or 100mm; and the test rate is
5mm/min or 10mm/min, which is determined by the negotiation between the supplier and the
purchaser.
6.4 Pinhole
The pinhole offline test is carried out according to the method specified in GB/T 22638.2; and
the pinhole online test method is shown in Appendix A.
6.5 Surface wetting tension
It shall be tested according to the method specified in GB/T 22638.4.
6.6 Joints
Visual inspection.
6.7 Tube core
The dimension deviation of the tube core is measured by a measuring tool that can guarantee
the accuracy; the material of the tube core is guaranteed by the supplier; and other items are
checked visually.
6.8 Appearance quality
6.8.1 Surface
6.8.1.1 During the arbitration inspection, visually inspect the appearance quality under natural
Visualizza dettagli completi