Battery & Electrification Technology - May/June 2024 - 28

Rugged Battery Connectors
Weidmuller USA (Richmond, VA) announced the launch of its rugged battery connectors. With the
addition of advanced battery connectors, Weidmuller USA now offers a full suite of energy storage
products to cover the power, data and signaling needs required in a wide array of Battery Energy
Storage System (BESS) applications including battery storage, connectors and power conversion,
HVAC/fire control, surge protection, combiner boxes and marshalling boxes. Battery connectors are
critical components that facilitate the transfer of electrical energy between the battery cells and the
application, allowing the connection of the battery modules in just a few simple steps. Weidmuller's battery connectors are engineered to
handle high currents, allowing for efficient energy transfer and reduced power losses as well as designed to withstand harsh environmental
conditions. The contact is made of copper alloy finished with silver and approved according to UL 4128 to warrant the best electrical contact
with more than 100 operations of mechanical connection and disconnection (without load).
www.weidmuller.com
Heat-Resistant Material
Polyplastics Group (Farmington Hills, MI) has announced the availability of DURAFIDE® PPS
6150T73, a high-performance material which delivers outstanding heat resistance and exceptional
thermal and electric insulation properties for EV lithium-ion (Li-ion) batteries. The material significantly
improves thermal and electric insulation properties during thermal runaway without the use
of inorganic insulative sheet structures. The material maintains the insulation properties of busbars
and module covers even after being left in environments of 1,000 °C for 30 minutes. With the shift
from engine-powered vehicles to EVs, today's Li-ion batteries can generate excessive heat due to
thermal runaway when accidents and other disturbances occur, thus ultimately leading to a potential fire. In addition to greater heat
resistance, DURAFIDE® 6150T73 has optimal properties for components such as module covers and busbars.
www.polyplastics-global.com/en
Overtemperature Detection Platform
Littelfuse, Inc. (Chicago, IL), has introduced TTape™, an
overtemperature detection platform designed to transform
the management of Li-ion battery systems. With its innovative
features, TTape helps vehicle systems manage premature
cell aging effectively while reducing the risks associated with
thermal runaway incidents. TTape is ideally suited for a wide
range of applications, including automotive EV/HEVs, commercial vehicles, and energy storage
systems. Its distributed temperature monitoring capabilities enable superior detection
of localized cell overheating, thereby improving battery life and enhancing the safety of battery
installations. With a single TTape device, multiple cells can be monitored, thus alerting
the BMS sooner in case of overtemperature scenarios. With a response time of less than one
second, TTape guarantees quicker alerts, signaling the potential onset of thermal runaway
conditions. Calibration isn't necessary as TTape can easily integrate with existing BMS.
www.littelfuse.com
Polyimide-Coated Magnet Wires
Electrical breakdown of high-temperature insulation
materials can be prevented by using thermoplastic
Polyimide (TPI). This polymer can be extrusion-coated
as other polymers, but AURUM, TPI reduces electrical
and magnetic losses. Sold by BEIGLO GmbH (Hamburg,
Germany) it has the highest Tg of any commercially available
TPI, 245 °C and its insulation performance especially at temperatures above 150 °C
beats any other know insulation. As the automobile sector transitions to EVs, new polymers
that offer higher electrical and thermal properties are used. AURUM reduces electrical and
magnetic losses with a high comparative tracking index (CTI) > 600 V. AURUM® is a semicrystalline
TPI suitable for powder-coating, injection molding and extrusion coating, with highestin-class
glass transition temperature (Tg = 245 °C). Extrusion processing AURUM® for
wire insulation is highly economical, allows extremely thin layers (30-40 percent thinner
than PEEK), and has better elasticity and good compatibility with cooling-/ lubricating oils.
www.bieglo.com
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Battery & Electrification Technology, May/June 2024

http://www.weidmuller.com http://www.polyplastics-global.com/en http://www.littelfuse.com http://info.hotims.com/86255-710 http://www.bieglo.com

Battery & Electrification Technology - May/June 2024

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