T/CIAPS 0043-2025 Active Group standards

T/CIAPS 0043-2025 Lithium-ion battery-grade aramid-coated separator membrane

Publish Date: 2025-01-20 Implement Date: 2025-02-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CIAPS 0043-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Other rubber products

ICS Name: Films and sheets

Publish Date: 2025-01-20

Implement Date: 2025-02-10

Scope

Scope: This document specifies the requirements, test methods, marking, packaging, transportation, and storage of aramid-coated separators for lithium-ion batteries. This document is applicable to lithium-ion batteries used in 3C, power, and energy storage applications. Main Technical Content: The standard preparation notes for "Aramid-Coated Separators for Lithium-Ion Batteries" include: scope, normative references, term definitions, product marking, grading requirements, quality assurance provisions, and packaging, marking, and storage. The main content of each chapter is as follows: 2.2.1 Scope 2.2.2 Normative References - Added GB/T 4146.1-2020 (definition of aramid) - Added GB/T 7122-1996 (peel test method) - Added GB/T 8170-2008 (performance determination rules) 2.2.3 Term Definitions The standard defines three terms: aramid, water-based coating, and oil-based coating. Specifically: - Aramid: A linear macromolecule composed of aromatic groups connected by amide or imide bonds, as defined in GB/T 4146.1-2020. At least 85% of the amide or imide bonds must directly connect to two aromatic rings, and when imide bonds exist, their number should not exceed the number of amide bonds. - Water-based coating: A polymer coating slurry prepared by dispersing a polymer or its dispersion in water, adding binders and dispersants, and drying after coating on a base film. - Oil-based coating: A polymer coating slurry prepared by dissolving a polymer in a polar solvent, coating on a base film, converting to a film via phase transition, and drying. 2.2.4 Product Marking The standard specifies product marking and provides examples. Product marking includes product model, specifications, and batch number. 2.2.5 Grading Requirements The standard defines classification and grading requirements. Aramid-coated products are divided into water-based and oil-based. Among oil-based products, regular, low-shrinkage, and high-burst products are available.