UK manufacturer Electrolube has a suite of thermal management and encapsulation resin products for battery protection including:
- HTCPX non-silicone heat transfer compound
- ER2221 thermally conductive epoxy potting compound
- UR5044 soft polyurethane resin
“Implementing the most effective thermal management solutions will significantly contribute to improving battery performance, safety, reliability and, ultimately, increasing the lifetime of the battery, particularly given the increasing trend towards high-capacity battery packs and fast charging,” according to the company.
HTCPX uses ceramic metal oxide powders and a non-silicone base oil to achieve 3.4W/m.K thermal conductivity while maintaining electrical insulation “to ensure that leakage currents can not be formed if the paste should come into contact with other parts of the assembly”, according to the company.
It operates across -50°C to +180°C and has gap-filling characteristics, is vibration stable, low in toxicity and low-creep.
It has UL94 V-0 approval and is intended to withstand long durations at high temperatures – operation is up to 150°C – and is designed for adhesion and to retain its characteristics through thermal cycling. Conductivity is 1.2W/m.K.
UR5044 is aUL approved potting compound designed to allow easy repair and re-work in-field from resin packs. “The material provides protection from extreme and varied environmental factors,” said Electrolube. “The flexibility and softness of this resin makes it shock absorbent, ideal for battery applications subject to vibration and shock.”
Earlier this year, the company announced GF400, a thermal gap filler that can be used in batteries.
Source: electronicsweekly
