The Tech

Littelfuse introduces new resettable PPTC devices for automotive applications

Circuit protection specialist Littelfuse has introduced three series of PolySwitch AEC-Q200 qualified resettable Polymeric Positive Temperature Coefficient (PPTC) devices. These surface-mount devices are designed for robust overcurrent protection in harsh automotive environments. Unlike fuses, resettable PPTCs do not require replacement after a fault event – they allow a circuit to return to its normal operating… Read more »

Using enzymes to inhibit battery aging

Biologists have long considered the excited oxygen molecule singlet oxygen to be the main cause of aging in cells. To counter this, nature uses an enzyme to eliminate superoxide as a free radical. Superoxide also occurs in cell respiration for energy production. Stefan Freunberger of the Graz University of Technology in Austria has found parallels… Read more »

Dukosi’s BMS stores data at the cell level

Battery management specialist Dukosi and electronics provider Swindon Silicon Systems have partnered to bring Dukosi’s semiconductor chip-based battery management solution to market. The companies expect the new product to be available in the second half of 2018. Dukosi has developed a unique approach to battery management that acquires and stores discrete data directly at the… Read more »

Nexperia’s new compact automotive power MOSFET package

Nexperia is offering its automotive power MOSFETs in a new thermally-enhanced, loss-free package with a footprint that it says is 80% smaller than industry-standard devices. LFPAK33 MOSFETs enable the infrastructure that powers contemporary automotive subsystems such as radar and ADAS technology. In the industry, pressure is growing to reduce the size of modules in the… Read more »

New fluorinated sulfone electrolytes enable high-voltage, high-energy Li-ion batteries

Researchers at Argonne National Laboratory have synthesized a new class of fluorinated sulfone electrolytes to enable high-voltage, high-energy Li-ion batteries. In “Oxidatively Stable Fluorinated Sulfone Electrolytes for 5-V Lithium-ion Battery,” published in the RSC journal Energy & Environmental Science, Chi-Cheung Su and colleagues explain how they evaluated the physical and electrochemical properties of the new… Read more »

Novelis to provide aluminum for NIO EVs

Aluminum supplier Novelis has agreed to provide aluminum for NextEV’s line of NIO EVs. NIO will use Novelis Advanz aluminum alloys to create a range of structural components and parts for its electric SUV models, which it plans to launch over the next five years. The aluminum for NIO will come from Novelis’s new $100-million… Read more »

Grafoid’s ion-selective graphene polymer membrane protects electrodes

Canadian graphene specialist Grafoid has introduced its GPURE Graphene Polymer nano-porous membrane, intended for next generation Li-ion battery applications. The GPURE GPM product is a chemically inert, freestanding membrane that uses graphene composites to test ion selectivity using both monovalent and divalent ions. Ion selectivity is a key requirement for a semi-permeable membrane in a… Read more »

ECO COMBAT project aims to develop better and more sustainable batteries

Ten European industry and research organizations are partnering in the EU-funded project ECO COMBAT (Ecological Composites for High-Efficient Li-Ion Batteries), which aims to develop next-generation Li-ion batteries. Better performance is not the only goal for the new battery. The project also aims to develop a battery that’s more sustainable, by reducing the need for expensive… Read more »

Eaton’s new high-current power inductors

Power management company Eaton has launched a new line of automotive-grade high-current power inductors for DC/DC converters, voltage regulators, battery-powered systems, multi-phase regulators and point of load modules. Automotive manufacturers require components that endure a wide temperature range, corrosive conditions, noise, electromagnetic interference (EMI) and shock. HCM1A inductors are compliant with AEC-Q200 Automotive Grade 1,… Read more »

New coating beefs up performance of lithium-sulfur batteries

New types of electrodes – positive and negative terminals – are considered essential for the development of a new generation of high energy-density batteries. As lithium-ion batteries begin to reach their capacity limits, many researchers are looking at lithium-sulfur as a solution. Sulfur is both lightweight and abundant, with a high theoretical energy capacity. However,… Read more »