Electrolube introduces key products for battery thermal management

11 August 2020

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Implementing effective thermal management solutions significantly contributes to improving battery performance, safety, reliability and, ultimately, increasing the lifetime of the battery – particularly given increasing trends towards high-capacity battery packs & fast charging.

In response to these demands, Electrolube, a leader in protective electro-chemical solutions, has developed key thermal management and encapsulation resin products for battery protection including: thermal gap filler, GF400; non-silicone heat transfer compound, HTCPX; thermally conductive epoxy potting compound, ER2221; and soft polyurethane resin, UR5044.

Electrolube’s thermal gap filler, GF400 is a highly effective heat transfer solution, providing excellent thermal performance at 4.0 W/m-K. The two part, liquid silicone-based filler is ideal for a PCB placed in an aluminium casing, filling potential voids with material and improving the transfer of heat, increasing reliability. GF400 is a thick liquid that can easily be applied around different shaped housings with low stress on components. Following application, the gap filler can be cured at room temperature, or accelerated with heat, with a wide operating temperature range between -50 to +200°C. The low viscosity of GF400 enables easier dispensing, and following curing, GF400 forms a low modulus elastomer, preventing the pump-out phenomenon of the thermal interface layer from the bond line.

Electrolube’s non-silicone HTCPX (Heat Transfer Compound PLUS Xtra) provides the ultimate in thermal conductivity, together with the advantage of using a non-silicone base oil. The exceptional properties obtained from HTCPX are due to the novel use of various metal oxide (ceramic) powders. These materials are electrically insulative, to ensure that leakage currents can not be formed if the paste should come into contact with other parts of the assembly. HTCPX has excellent thermal conductivity at 3.40 W/m-K and provides a wide operating temperature range from -50°C to +180°C. Designed for gap filling applications, the non-silicone heat transfer compound is vibration stable, low in toxicity and upholds excellent non-creep characteristics.

To achieve prolonged battery life and higher efficiency, Electrolube’s thermally conductive epoxy potting compound, ER2221 is a highly thermally conductive resin with low viscosity, ideal for potting cells within electric vehicle batteries. The UL94 V-0 approved epoxy potting compound can withstand long durations at high temperatures and can assist with securing cells in place, while dissipating the heat away to the surroundings. The resin effectively creates a protective shield around the battery and enables excellent adhesion, high temperature resistance, high thermal conductivity and retention of characteristics throughout the thermal cycling process. ER2221 is coloured black with an operating temperature of 150°C and an advanced thermal conductivity value, in comparison to other encapsulants, of 1.20W/m-K.

The soft and removable PU resin, UR5044 is a high performance potting compound that allows easy repair and rework in-field with user-friendly resin packs. The material provides excellent protection from extreme and varied environmental factors and is fully UL approved. The flexibility and softness of this resin makes it highly shock absorbent, ideal for battery applications subject to vibration and shock. Electrolube’s UR5044 provides excellent protection from extreme and varied environmental factors.

Ron Jakeman, Electrolube’s Managing Director comments: “Electrolube has served the automotive industry’s major manufacturers for many years, increasing the reliability of their electronics, in one of the most variable applications and rapidly growing markets. In conjunction, we have seen a surge in demand from many battery application customers and Electrolube is increasingly becoming the go-to resource in this market for specialist electro-chemical solutions that help manufacturers bring high-quality, reliable batteries to market faster. We have numerous, versatile solutions that provide excellent protection in a wide range of environments and frequently develop bespoke solutions for our customers if an application presents more of a challenge.

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With a presence in 60 countries, Electrolube is an established manufacturer of specialist chemical products supplying the world’s leading manufacturers of electronics, automotive, industrial and domestic devices. All product ranges are manufactured at the company’s BS EN ISO 9001, ISO 140001, “IATF 16949:2016, OHASA 18001 and AS/EN 9100 Series accredited factories in the UK, China and India. 

About Electrolube

Electrolube, a division of H.K. Wentworth Limited, is a leading manufacturer of specialist chemicals for electronics, automotive and industrial manufacturing. Core product groups include conformal coatings, contact lubricants, thermal management materials, cleaning solutions, encapsulation resins, and maintenance and service aids.

The extensive range of electro-chemicals at Electrolube enables the company to offer a ‘complete solution’ to leading manufacturers of electronic, industrial and domestic devices, at all levels of the production process. Through collaboration and research, the company is continually developing new and environmentally friendly products for customers around the world and their commitment to developing ‘greener’ products has been endorsed by the ISO 14001 standard for the highly efficient Environmental Management System in place at the company.

Winners of the Queen’s award for Enterprise in 2016, Electrolube is represented in over 55 countries with an established network of subsidiaries and distributors. By offering genuine security of scale and a reliable supply chain, the company is able to deliver a truly tailored service.


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