Battery Housing

Battery Housing

The battery housing is a critical element of any electrified vehicle - it protects the batteries from environmental hazards, and acts as a protective barrier for passengers in case of battery malfunctions. Composite materials are lightweight, and offer resistance to fire, crash damage and corrosion. Huntsman's composite solutions meet all safety, mechanical and thermal requirements.

Reliable Chemistry for Battery Housings

Composite battery housing designs can reduce weight by up to 40% versus metal concepts, while meeting all safety, mechanical and thermal requirements. ARALDITE® resin systems enable the design of battery housings that pass all relevant fire resistance, crash resistance, environmental aging and thermal shock tests, as defined in international standards. High thermomechanical properties ensure battery cells are fully protected, while providing design freedom, light weight and corrosion resistance.

Araldite® FST 40004 /
Araldite® FST 40005

UL 94 rating:
GFRP 2 mm: V0 / CFRP 2mm: V1

Glass transition temperature (Tg):
265 - 275°C

Suitable for:

  • HP-RTM

First generation, halogen-free and filler free system, combining fire resistance and very high thermal resistance. It enables the production of large parts such as battery housing.

Araldite® FST 40004 /
Araldite® FST 40007

UL 94 rating:
GFRP 2 mm: V0 / CFRP 2mm: V0

Tensile strength:
85 - 90 MPa

Suitable for:

  • HP-RTM

First generation, halogen-free and filler free system, offering high mechanical strength and fracture toughness in addition to improve fire resistant properties. Excellent candidate to produce battery housing with demanding structural requirements.

Araldite® FST 40020 /
Araldite® FST 40021

UL 94 rating:
GFRP 2 mm: V0 / CFRP 2mm: V0

Cure time:
3 - 5 min 115°C

Suitable for:

  • HP-RTM
  • Wet Compression Molding

Second generation fire resistant system dedicated to the mass production of battery housing parts. It offers excellent processability and fast cure.

Araldite® LT 3366

Softening point:
150°C

Preforming cycle:
20 s at 180°C

Suitable for: 

  • Preforming

Non-reactive binder for highly efficient mass-production of powdered fabrics and preforms. High softening point prevents ply-to-ply adhesion during storage and fiber distortion at injection temperatures up to 120°C.

Araldite® XB 6078

Softening point:
85°C

Preforming cycle:
120 s at 140°C or 60 s at 160°C

Suitable for:

  • Preforming

Reactive binder offering very high preform stability, even for injection temperatures exceeding 160°C. Recommended for production of thick preforms, such as for leaf spring manufacture, as well as for parts requiring high aesthetic quality.

Araldite® LY 3585 /
Aradur® 3475

Glass transition temperature (Tg):
120 - 130°C

Cure time:
2 min at 115°C (HP-RTM)
1 min at 140°C (WCM)

Suitable for:

  • HP-RTM
  • Wet Compression Molding

 

Fast cure solution offering enhanced processing (1 min injection window at 115°C), reduced curing cycle and improved toughness versus state-of-art technology (ARALDITE® LY 3585 / XB 3458). High clarity system for production of cosmetic parts.

Araldite® LY 3031 /
Aradur® 3032

Glass transition temperature (Tg):
110 - 120°C

Cure time:
30 s at 140°C

Suitable for:

  • HP-RTM
  • Wet Compression Molding

Very fast cure solution developed to improve productivity and meet requirements of structural automotive parts made by Wet Compression Molding (WCM) and Dynamic Fluid Compression Molding (DFCM).

Araldite®LY 3569 /
Aradur® 1571 /
Accelerator

Glass transition temperature (Tg):
130 - 140°C

Cure time:
3 min 150°C

Suitable for:

  • Sheet Molding Compound

Fast cure B-stage SMC system for serial production of automotive parts. VOC free. Resulting SMC retains very good drapability for 3 weeks at 23°C. 

Araldite®LY 3569 /
Aradur® 1571 /
Accelerator 1573 /
Aradur® 1575

Glass transition temperature (Tg):
115 - 135°C

Cure time:
5 - 10 min 150°C

Suitable for:

  • Sheet Molding Compound

Medium Tg B-stage epoxy SMC system for body in white parts. VOC free. The system can be compounded on large sized SMC rolls and the resulting SMC retains very good drapability for 6 weeks at 23°C. A wide range of part thicknesses can be processed.

XB 50021 A /
Aradur® 1571 /
Accelerator 1573 /
XB 50021 B

Glass transition temperature (Tg):
160 - 190°C

Cure time:
5 - 10 min 160°C

Suitable for:

  • Sheet Molding Compound

High Tg B-stage epoxy SMC system for parts close to the engine. VOC free. The system can be compounded on medium sized SMC rolls and the resulting SMC retains very good drapability for 6 weeks at 23°C. Allows processing up to medium part thicknesses.

Araldite® LY 3585 /
Aradur® 917-1 /
Accelerator DY 080

Glass transition temperature (Tg):
120°C - 180°C (adjustable)

Impregnation technology:
Open bath and injection box

Suitable for:

  • Pultrusion

REACH compliant, robust anhydride solution with long pot-life, offering high surface quality for pultrusion parts. Cure profile and the resulting Tg can be adjusted depending on the application requirement.

Araldite® LY 3585 /
Aradur® 3475

Glass transition temperature (Tg):
120 - 130°C

Impregnation technology:
Injection box

Suitable for:

  • Pultrusion

 

Rapid cure epoxy / amine system for achieving fast line speed and productivity, whilst offering clean pultrusion processing. For automotive applications with medium Tg requirements.

Want to discuss with an expert?

No matter how complex or challenging, our specialists are ready to help realize your ambitions.
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By working with Huntsman, you benefit from an experienced composite team that can provide support at every stage of development.

Huntsman specially develops resin systems to meet the most stringent requirements for battery housings, and our experts draw on their strong experience in RTM and HP-RTM to provide handling and processing guidelines. We also offer kinetic simulations that enable customers to keep processes under control, reduce development times and optimize productivity.

The Right Resin Systems for Your Composite Parts

Battery Housing

Battery Housing

Our resin systems allow to reduce battery housing designs weight by up to 40%, while meeting all safety, mechanical and thermal requirements.

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Body in White

Body in White

We offer resin systems optimized for composite body-in-white parts that are superior to aluminum and often even steel concerning strength and stiffness.

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Wheel

Wheel

Our resin solutions for composite wheels meet the most stringent safety requirements for impact and fatigue resistance, and deliver exceptional color stability and UV resistance.

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Pressure Vessel

Pressure Vessel

Our resin technology meets the stringent requirements of composite hydrogen storage vessels, offering high-impact and chemical resistance.

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Leaf Spring

Leaf Spring

We offer a range of resin systems for the production of composite leaf springs, that can be up to five times more durable than steel springs.

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Encapsulants for Battery and Power Electronics

Encapsulants for Battery and Power Electronics

Araldite® encapsulants protect sensitive devices, improve thermal management and meet new temperature resistance requirements

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Lower Costs, Faster to Market Whatever your Process

Lower Costs, Faster to Market Whatever your Process

Our leading composite expertise, broad product range and unique simulation capabilities can reduce development cycles by up to 50  %.

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Frequently Asked Questions

What advantages do composite battery housings offer?

In addition to the dramatic reduction in weight, which translates to longer vehicle range and/or lower cost, composites offer several advantages over steel or aluminum for battery housing applications.

Fiber composite materials are not susceptible to rust, so unlike steel, they do not require additional layers of material to protect against corrosion.

Composite battery housings are readily mass-produced with consistent quality and minimal waste, and modern manufacturing processes can deliver a cost comparable to that of aluminum or steel.

Why should we use a Huntsman product?

Since the earliest use of resin systems in the automotive industry, Huntsman has been at the forefront of R&D efforts to speed up production by improving both the molding processes and the chemistry of the resin systems. ARALDITE® resin solutions for battery housings meet both requirements for mass production and new composite designs. Our OEM-qualified mass production systems offer proven performance and reliability, as demonstrated by several years of on-road service, and are compatible with flame retardant fillers, veils and textiles. Our new ARALDITE® FST resin solutions are based on a unique halogen-free thermosetting chemistry that meets the most stringent fire resistance requirements for electrified vehicles, enabling intrinsically flame- smoke- and toxin-retardant composite designs.

What are the specific advantages when it comes to manufacturing battery housings?

Our range of ARALDITE® resin products allows you to select the system that meets your specific requirements. It offers demonstrated mass production of parts as well as a high degree of design freedom, as no additional fire or corrosion protection is required.

ARALDITE® epoxy resins are unfilled, fast-curing, and offer low reaction exotherm. This enables fast and efficient production of composite parts, even very thick parts, by HP-RTM, WCM or DFCM.

The Right Solution for Your Manufacturing Process

Discover our leading composite expertise, broad product range and unique simulation capabilities to reduce development cycle times.

Processes for Composites

Composite Resin Systems

Our solutions for automotive composites offer superior mechanical performance at lower weight, chemical and particularly corrosion resistance, as well as minimal cycle time.

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