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Insulating Gasket/Seal Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

A precision-engineered insulating gasket/seal designed for cell housing assemblies in battery systems, providing both electrical insulation between conductive components and environmental sealing against moisture, dust, and contaminants. This component ensures safe electrical isolation while maintaining structural integrity and preventing electrolyte leakage in battery applications.

Working Principle

Functions through dielectric material properties to prevent electrical current flow between conductive surfaces while maintaining compression to create a hermetic or environmental seal. The gasket/seal material's high dielectric strength blocks electrical conduction, while its elastic properties maintain sealing force under thermal cycling and mechanical stress.

Materials

Typically made from fluoropolymers (PTFE, FEP), silicone rubber, EPDM, or specialized composite materials with dielectric strength >15 kV/mm, temperature resistance from -40°C to +150°C, and chemical resistance to electrolytes and cleaning agents.

Technical Parameters

Hardness 50-80 Shore A
Compression Set <25%
Temperature Range -40°C to +150°C
Volume Resistivity >10^12 Ω·cm
Dielectric Strength >15 kV/mm
Flammability Rating UL94 V-0
Thickness Tolerance ±0.1 mm

Standards

ISO 9001, ISO 14001, IEC 60601-1, UL 94, ASTM D2000

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Insulating Gasket/Seal.

Parent Products

This component is used in the following industrial products

Cell Housing Assembly

The structural enclosure that contains and protects the internal components of a lithium-ion battery cell.

View Product Details

Engineering Analysis

Risks & Mitigation

Electrical short circuit due to insulation failure
Electrolyte leakage causing corrosion
Thermal degradation at high temperatures
Compression set leading to seal failure
Chemical incompatibility with electrolytes

FMEA Triads

Trigger: Material degradation from thermal cycling
Failure: Loss of sealing capability and reduced dielectric strength
Mitigation: Use materials with appropriate temperature ratings and implement thermal management systems

Trigger: Improper installation compression
Failure: Inadequate sealing or material damage
Mitigation: Implement torque-controlled installation procedures and training

Trigger: Chemical attack from electrolytes
Failure: Material swelling, softening, or cracking
Mitigation: Select chemically compatible materials and conduct compatibility testing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.1 mm thickness, ±0.2 mm dimensions

Test Method

Dielectric strength testing per IEC 60243, compression set testing per ASTM D395, leak testing per ISO 9978, thermal cycling per IEC 60068-2-14

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of an insulating gasket/seal in cell housing assemblies?

The primary function is dual-purpose: providing electrical insulation between conductive components to prevent short circuits and creating an environmental seal to protect against moisture, dust, and electrolyte leakage.

What materials are commonly used for insulating gaskets/seals in battery applications?

Common materials include fluoropolymers like PTFE and FEP for high chemical resistance, silicone rubber for wide temperature range, and EPDM for cost-effective solutions. Material selection depends on specific application requirements including temperature, chemical exposure, and dielectric needs.

How does compression affect insulating gasket/seal performance?

Proper compression ensures effective sealing by maintaining contact pressure between surfaces. Insufficient compression can cause leaks, while excessive compression may damage the material or reduce dielectric properties. Typical compression is 15-30% of original thickness.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Insulating Gasket/Seal