New energy vehicle batteries


Battery solutions

Accelerating the eMobilty revolution

Unlock the true potential of EV batteries with our cutting-edge surface finishing technologies. Engineered for maximum performance, they ensure optimal corrosion protection, wear resistance, and adhesion promotion for a wide variety of battery components. We provide a comprehensive range of surface finishing solutions, from pretreatment to final sealing and offer enhanced connectivity, longer lifetimes, improved adhesion, and outstanding reliability. All this promotes battery safety and operational lifetime while boosting performance.

Our portfolio covers diverse coating solutions that minimize reliance on hazardous chemicals and optimize water, energy, and raw material use while assuring low contact and high wear resistance. These include high-speed copper plating over nickel-tin, nickel-phosphorus processes, immersion tin solutions, high-performance decorative or corrosion-resistant electrolytes, zinc flake systems and electroless nickel processes. We additionally offer processes ranging from pretreatment to heat and humidity-resistant anti-tarnishes.

Cathode and anode current collectors

For advanced battery technology and enhanced adhesion of high-capacity active materials on current collectors, we provide tailored adhesion promotion solutions, including pre- and post-treatment, plating processes, and application expertise. Our treatments for copper and aluminum foils enhance adhesion to resins and polyimide, ensuring optimal manufacturing results.

Solutions for plastic-copper composite foils

Current collectors are crucial for cell stack stability, provide lightweight properties and must endure chemical and electrochemical challenges. An effective solution involves replacing the core with a plastic carrier foil coated with copper layers, reducing weight. Thinner copper foils are characterized by lower stress and more even surfaces. To enhance adhesion of high-capacity active materials, we provide specialized copper plating processes for PET foils and surface treatments that improve adhesion and corrosion protection of deposited copper layers.

Pretreatment and plating solutions for aluminum foil

Utilizing the core plastic foil as the carrier aluminum current collectors can potentially prevent thermal runways in the event of mechanical damage to the collector foil. A wide variety of aluminum alloys demand specific treatment chemistry for optimal surface preparation, ensuring flawless coatings and excellent adhesion. We offer a comprehensive range of advanced pretreatment and electroless nickel solutions designed to adhere perfectly to all aluminum alloy types, providing exceptional corrosion and wear resistance.

Connectors and busbars

Connectors and busbars play a vital role in transmitting high current loads while enduring constant motion, demanding exceptional conductivity and wear resistance. We offer comprehensive processes, including nickel silver and nickel tin plating solutions, along with anti-tarnish treatments. From copper or aluminum pretreatment to nickel barrier and subsequent silver plating or Cr(III)-based layers for protection, we ensure superior performance. Our processes cover the entire plating process from pretreatment, and nickel barrier, to silver or tin plating, coupled with heat and humidity-resistant anti-tarnishes.

Nickel, silver and tin plating

Powertrain connectors demand low contact resistance and high wear resistance. Our product portfolio offers coatings with various highly conductive silver coatings, from pure to alloyed silver and silver graphite processes that deliver these essential qualities. Our completely sustainable and Eco-friendly tin products are a cost-effective alternative to precious metal coatings for busbars with exceptional corrosion resistance. Both tin and silver are usually applied over our highly effective nickel barriers.

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Pretreatment and anti-tarnishes

Effective pre-and post-treatment processes are essential for achieving optimal surface properties. The often-underestimated post-treatment step is particularly vital for sustaining long-lasting surface properties in the final finishes. Our comprehensive range of processes includes the ideal Cr(VI)-free and PFAS-free anti-tarnish solution for every surface, ensuring enduring quality.

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Liquid cooling solutions: Plate loop heat pipes

Active, indirect contact liquid cooling involves utilizing a liquid coolant, such as water, a refrigerant, or ethylene glycol within flat plate loop heat pipes that effectively dissipate excess heat away from the battery. One major challenge encountered in liquid cooling systems is the potential corrosion of metal substrate-based components as they age.

Chemical and corrosion resistant coatings

Addressing this concern, we offer specifically tailored solutions for liquid-cooled heat sinks. Our medium and high phosphorus electroless nickel processes deliver exceptionally high corrosion resistance to the intricately shaped components exposed to the chemical environment of coolants, ensuring that the plates maintain their integrity and functionality over time.

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Electromagnetic shielding

Modern vehicles are equipped with features for convenience and safety that emit and are potentially affected by electromagnetic radiation interference. Electric cars introduce extra sources like power converters, motors, traction batteries, or chargers. When a power source and vulnerable equipment are nearby, safeguarding against electromagnetic interference through proper shielding becomes essential.

Conductive and sift magnetic electroplated layers

We provide pretreatments for various applications, enabling direct plating onto molding resins used in components, PCBs, or advanced plastic housings to screen electronic systems. Our range of highly conductive and soft magnetic electroplated layers ensures effective shielding against low-frequency electromagnetic radiation.

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Sustainable solutions for modules, housings and fasteners

To ensure the durability of aluminum or steel battery housings, corrosion protection is crucial. Our comprehensive portfolio of sustainable cleaning and surface pretreatment solutions and corrosion-resistant coatings caters to various components within the battery system, including enclosures and module covers.

Our electrolytic and zinc flake-based coatings for fasteners meet stringent requirements for reduced contact corrosion, improved conductivity, and precise coefficients of friction in battery assembly.

Surface finishing solutions for steel battery housings

Steel battery housings require electromagnetic shielding and special corrosion protection lasting the vehicle’s lifetime. To meet stringent standards for thermal and dielectric resistance, as well as corrosion protection, we provide a wide range of sustainable cleaners and processes, including efficient zinc alloy electrolytes for unmatched corrosion resistance, passivation processes for seamless adhesion to paint and fire-retardant layers, and heat-resistant zinc flake coatings that excel in corrosion resistance and fire and heat spreading protection.

Surface preparation for aluminum components

Aluminum battery components, vital for electric vehicle efficiency and safety, require specialized surface treatments. Our comprehensive portfolio combines cleaners, conversion coatings, etch and deoxidation processes to meet the unique requirements of covers, trays, module, pouch covers, and cooling trays, ensuring battery performance and passenger safety.

Structurally stable fastener technologies for battery packs

High-quality battery fastenings cater to diverse and mixed materials, enabling lightweight, airtight, and serviceable battery packs, allowing for maintenance and recycling the battery life’s end. Our electrolytic zinc, zinc nickel, and zinc iron processes, along with post-treatments or in combination with Atotech zinc flake top coats, deliver exceptional corrosion protection, stable clamping forces, and improved contact corrosion resistance and enhanced conductivity.

Anode lead tabs in battery pouches

Corrosion can decrease adhesion properties, resulting in separation and swelling. An improved corrosion protection effectively safeguards against hydrofluoric acid formation within the battery pouch pack. Ensuring the secured seal of lithium battery pouches to prevent hydrofluoric acid formation is crucial for the battery’s safety. It requires strong adhesion between the insulation material and the anode lead tab.

Lead tab adhesion

Our comprehensive coating process encompasses pretreatment, nickel processes for barrier or conductive layer plating, and a corrosion-resistant trivalent chromium-based top layer. This top layer enhances adhesion between insulation and lead tabs, guaranteeing optimal performance and safety.

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Battery and cell management

The battery management system is an integral part of the battery, demanding exceptional durability, reliability, and efficiency. The electronic package must withstand prolonged exposure to elevated temperatures and high humidity to improve its lifespan. Automotive standards for the entire IC package have grown increasingly stringent, incorporating additional heat exposure tests alongside moisture sensitivity level (MSL) assessments.

Lead frame IC packages and Printed Circuit Boards

Our innovative solutions include specialized adhesion promoters to address package delamination challenges in high-temperature, high-humidity environments. Our tailored 3D solder joint improvement processes are specifically designed to enhance QFN package reliability through wettable flanks with up to 30 years shelf life.

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Leading surface-finishing solutions for BEV, HEV and PHEV batteries

From pretreatment to final sealing, our comprehensive range of surface finishing solutions brings enhanced connectivity, longer lifetimes, improved adhesion, and outstanding reliability. Experience unparalleled battery safety, operational lifetime, and boosted performance. Join us in driving the future of electric vehicles with sustainable and diverse coating solutions that minimize reliance on hazardous chemicals.

EV, HEV and PHEV batteries 
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