T/CPPIA 10-2021 Active Group standards

T/CPPIA 10-2021 New energy vehicle lithium battery separator for power battery

Publish Date: 2021-03-08 Implement Date: 2021-03-08 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/CPPIA 10-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Plastic profiles

ICS Name: Films and sheets

Publish Date: 2021-03-08

Implement Date: 2021-03-08

Scope

Scope: This document specifies the classification, requirements, test methods, inspection rules, packaging, marking, transportation, and storage of power lithium battery separators (referred to as separators) for new energy vehicles. This document applies to polyolefin separators and ceramic-coated separators based on polyolefin separators for new energy vehicle power lithium batteries. Separators for new energy vehicle power lithium batteries made of other materials can refer to this document for implementation. Main technical contents: 5.1 Appearance 5.1.1 The appearance of the separator shall comply with the requirements of Table 1. 5.1.2 The appearance of the film roll shall comply with the requirements of Table 2. 5.2 Dimensions 5.2.1 The thickness deviation shall comply with the requirements of Table 3. 5.2.2 The width deviation shall comply with the requirements of Table 4. 5.2.3 The curvature shall be ≤4 mm/m. 5.3 Physical properties 5.3.1 The physical properties of polyolefin separators shall comply with the requirements of Table 5. 5.3.2 The physical properties of ceramic-coated separators shall comply with the requirements of Table 6. 5.4 Electrical properties 5.4.1 Electrical strength: The minimum electrical strength shall be ≥30 V/μm, and the average electrical strength shall be ≥50 V/μm. 5.4.2 Ionic conductivity: It shall comply with the provisions agreed upon by both the supplier and the buyer.