Housing Can (or Pouch): Operating Temperature -40°C to 85°C

Q: What is the difference between a housing can and a pouch?

A housing can is a rigid metal or plastic enclosure offering high mechanical strength and thermal conductivity, while a pouch is a flexible laminated polymer bag that allows for lightweight, compact designs and accommodates cell expansion.

Q: How do you ensure sealing integrity in housing cans?

Sealing integrity is achieved through precision welding (e.g., laser or resistance welding), gaskets, or crimping, followed by leak testing (e.g., helium mass spectrometry) to meet industry standards for hermeticity.

Component Specifications

Definition

A housing can or pouch is a critical component in cell housing assemblies, designed to contain and protect electrochemical cells (such as lithium-ion cells) from mechanical damage, moisture, and contaminants. It ensures proper alignment, thermal management, and electrical isolation while maintaining the structural integrity of the battery module. The housing can be rigid (metal or plastic) or flexible (pouch-type), depending on the application requirements, and includes features for venting, terminal connections, and mounting.

Working Principle

The housing can operates by enclosing the electrochemical cell stack, providing a sealed environment to prevent electrolyte leakage and external contamination. It maintains internal pressure, facilitates heat dissipation through conductive materials or thermal interfaces, and supports electrical connections via integrated terminals. In pouch designs, the flexible laminate allows for expansion during charge cycles while maintaining a hermetic seal.

Materials

Aluminum alloy (e.g., 3003 or 6061), stainless steel (e.g., 304 or 316), or multi-layer laminated polymer (for pouches, typically PET/AL/PP). Surface treatments may include anodizing, plating, or coating for corrosion resistance and insulation.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Dimensions	Customizable per cell size (e.g., 18650, 21700, pouch dimensions)
Sealing Method	Laser welding, crimping, or heat sealing
Wall Thickness	0.2-1.5 mm (metal) or 0.1-0.3 mm (pouch laminate)
Pressure Rating	Up to 1.5 bar (for venting safety)
Electrical Insulation	Dielectric strength > 1000 V
Operating Temperature	-40°C to 85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 12405-4, IEC 62660-2, UL 1642, DIN EN 62133

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.

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Engineering Analysis

Risks & Mitigation

Electrolyte leakage
Thermal runaway propagation
Mechanical deformation under pressure
Corrosion in humid environments
Electrical short circuits

FMEA Triads

Trigger: Improper welding or sealing
Failure: Loss of hermeticity leading to electrolyte leakage
Mitigation: Implement automated welding with real-time monitoring and post-process leak testing.

Trigger: Material fatigue or corrosion
Failure: Structural breach or electrical insulation failure
Mitigation: Use corrosion-resistant alloys or coatings and conduct regular material inspections.

Trigger: Overpressure from gas generation
Failure: Can rupture or pouch swelling
Mitigation: Integrate pressure relief vents and design with safety margins per standards.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerance ±0.1 mm for critical features; sealing surface flatness < 0.05 mm

Test Method

Leak testing per ISO 12405-4, pressure cycling per IEC 62660-2, and thermal shock testing per UL 1642.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Housing Can (or Pouch)

Manufacturer profiles associated with Housing Can (or Pouch).

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Frequently Asked Questions

What is the difference between a housing can and a pouch?