May 02, 2017 Volume 13 Issue 17

Electrical/Electronic News & Products

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Benchtop ionizer for hands-free static elimination

EXAIR's Varistat Benchtop Ionizer is the latest solution for neutralizing static on charged surfaces in industrial settings. Using ionizing technology, the Varistat provides a hands-free solution that requires no compressed air. Easily mounted on benchtops or machines, it is manually adjustable and perfect for processes needing comprehensive coverage such as part assembly, web cleaning, printing, and more.
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LED light bars from AutomationDirect

Automation-Direct adds CCEA TRACK-ALPHA-PRO series LED light bars to expand their offering of industrial LED fixtures. Their rugged industrial-grade anodized aluminum construction makes TRACKALPHA-PRO ideal for use with medium to large-size industrial machine tools and for use in wet environments. These 120 VAC-rated, high-power LED lights provide intense, uniform lighting, with up to a 4,600-lumen output (100 lumens per watt). They come with a standard bracket mount that allows for angle adjustments. Optional TACLIP mounts (sold separately) provide for extra sturdy, vibration-resistant installations.
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World's first metalens fisheye camera

2Pi Optics has begun commercial-ization of the first fisheye camera based on the company's proprietary metalens technology -- a breakthrough for electronics design engineers and product managers striving to miniaturize the tiny digital cameras used in advanced driver-assistance systems (ADAS), AR/VR, UAVs, robotics, and other industrial applications. This camera can operate at different wavelengths -- from visible, to near IR, to longer IR -- and is claimed to "outperform conventional refractive, wide-FOV optics in all areas: size, weight, performance, and cost."
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Orbex offers two fiber optic rotary joint solutions

Orbex Group announces its 700 Series of fiber optic rotary joint (FORJ) assemblies, supporting either single or multi-mode operation ideal for high-speed digital transmission over long distances. Wavelengths available are 1,310 or 1,550 nm. Applications include marine cable reels, wind turbines, robotics, and high-def video transmission. Both options feature an outer diameter of 7 mm for installation in tight spaces. Construction includes a stainless steel housing.
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Mini tunnel magneto-resistance effect sensors

Littelfuse has released its highly anticipated 54100 and 54140 mini Tunnel Magneto-Resistance (TMR) effect sensors, offering unmatched sensitivity and power efficiency. The key differentiator is their remarkable sensitivity and 100x improvement in power efficiency compared to Hall Effect sensors. They are well suited for applications in position and limit sensing, RPM measurement, brushless DC motor commutation, and more in various markets including appliances, home and building automation, and the industrial sectors.
Learn more.


Panasonic solar and EV components available from Newark

Newark has added Panasonic Industry's solar inverters and EV charging system components to their power portfolio. These best-in-class products help designers meet the growing global demand for sustainable and renewable energy mobility systems. Offerings include film capacitors, power inductors, anti-surge thick film chip resistors, graphite thermal interface materials, power relays, capacitors, and wireless modules.
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Standard parts with signal feedback included

JW Winco standard parts are becoming even more functional -- multifunctional, to be precise. From smart stop bolts that report whether workpieces are precisely positioned in the machining process to cabinet handles with signal lights and fluid level indicators with electronic REED contact signals, intelligent standard parts from JW Winco ensure greater safety, higher efficiency, and increased stability. Many more very useful options available for a wide range of applications.
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Create smarter control systems with relays

Control relays play a pivotal role in the world of automation and control systems. These versatile devices are designed to help you manage electrical circuits, making them indispensable for a wide range of applications. Learn the distinctive benefits of relays, including reliability and durability, versatility, ease of use, and costs. Check out the relays AA Electric has in stock too.
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COMSOL Multiphysics Version 6.2 is here

COMSOL Multiphysics Version 6.2 introduces faster solvers for turbulent fluid flow, electric motors, and room acoustics. It also brings data-driven surrogate model functionality for creating multiphysics-based digital twins and building fast and accurate standalone simulation apps. Get the full details of what's new in the latest version.
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17 ways SOLIDWORKS 2024 helps you work faster

SOLIDWORKS 2024 helps designers and engineers work faster than ever. Learn all about improvements to core 3D CAD modeling features, new 3D modeling techniques, and graphical and software performance boosts that will help you get your parts made and your products developed in record time.
View the video.


6 tips to streamline workflow in Mastercam 2024

Mastercam 2024 CAD/CAM software has been intentionally upgraded to make programming fast and easy. It prioritizes streamlining workflow so that the entire machining process -- from design to QC -- is as efficient as possible. Learn how to maximize the benefits of Mastercam 2024, including special toolpaths, easier hole-making operations, wireframe shortcuts, and more.
Read this informative Mastercam blog.


Leak detection sensor for multiple HVAC refrigerants

Sensata Technologies has launched the Sensata Resonix RGD sensor, the first leak detection sensor with UL certification for multiple A2L refrigerant gases used in heating, ventilation, and air conditioning (HVAC) equipment. It supports HVAC manufacturers' transition to refrigerants with a lower global warming impact. Typically mounted near the evaporator coil, the new sensor measures the acoustic resonance of the surrounding air in real time and can trigger mitigation, such as a fan, when A2L gas is detected.
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New electro-pneumatic vacuum regulator

The Type 1005V Electronic Vacuum Regulator is the first electronic vacuum regulator offered by ControlAir. It is used in various industrial and automation applications to precisely control and regulate the flow of air or gases in a system. It has two solenoid valves, a pressure sensor, and an electronic board for precise control to ensure that the vacuum pressure remains steady.
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Real-world applications: FUTEK 100 sensor examples

Get inspired. FUTEK has more than 100 real-world application examples for their load cells, force transducers, torque sensors, pressure sensors, and multi-axis sensors. From a cryogenic load cell on the Mars Curiosity rover to fly-by-wire multi-axis force and torque sensors for aircraft, learn about sensor systems, their specs, and design. Automotive, manufacturing, medical, robotics, and automation are covered too. Fascinating and highly practical.
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Filter fans for enclosures: 70 models in new series

The new 4000 Series from Seifert Systems covers 70 UL-listed filter fan models designed for enclosure applications. They snap in place once a cutout is made in the enclosure. Mounting screws are available with EMC models or as an option. Filter media snaps in place and easily slides out for replacement. When used with a Seifert thermostat, 4000 Series filter fans can be turned on only when needed. Air flow ranges from 7 to 483 cfm.
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Scientists identify chemical causes of lithium-ion battery 'capacity fade'

When manganese ions (gray) are stripped out of a battery's cathode (blue), they can react with the battery's electrolyte near the anode (gold), trapping lithium ions (green/yellow). [Image by Robert Horn/Argonne National Laboratory.]

 

 

 

 

By Jared Sagoff

Like you, me, and everyone we know, batteries have a finite lifespan.

When a battery enters "old age," scientists refer to its diminished performance as "capacity fade," in which the amount of charge a battery can supply decreases with repeated use. Capacity fade is the reason why a cell phone battery that used to last a whole day will, after a couple of years, last perhaps only a few hours.

But what if scientists could reduce this capacity fade, allowing batteries to age more gracefully?

Researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory identified one of the major culprits in capacity fade of high-energy lithium-ion batteries in a paper published in The Journal of the Electrochemical Society.

For a lithium-ion battery -- the kind that we use in laptops, smartphones, and plug-in hybrid electric vehicles -- the capacity of the battery is tied directly to the amount of lithium ions that can be shuttled back and forth between the two terminals of the battery as it is charged and discharged.

This shuttling is enabled by certain transition metal ions, which change oxidation states as lithium ions move in and out of the cathode. However, as the battery is cycled, some of these ions -- most notably manganese -- get stripped out of the cathode material and end up at the battery's anode.

Once near the anode, these metal ions interact with a region of the battery called the solid-electrolyte interphase, which forms because of reactions between the highly reactive anode and the liquid electrolyte that carries the lithium ions back and forth. For every electrolyte molecule that reacts and becomes decomposed in a process called reduction, a lithium ion becomes trapped in the interphase. As more and more lithium gets trapped, the capacity of the battery diminishes.

Some molecules in this interphase are incompletely reduced, meaning that they can accept more electrons and tie up even more lithium ions. These molecules are like tinder, awaiting a spark.

When the manganese ions become deposited into this interphase, they act like a spark igniting the tinder: these ions are efficient at catalyzing reactions with the incompletely reduced molecules, trapping more lithium ions in the process.

"There's a strict correlation between the amount of manganese that makes its way to the anode and the amount of lithium that gets trapped," said study coauthor and Argonne scientist Daniel Abraham. "Now that we know the mechanisms behind the trapping of lithium ions and the capacity fade, we can find methods to solve the problem."

The study, "Transition Metal Dissolution, Ion Migration, Electrocatalytic Reduction and Capacity Loss in Lithium-Ion Full Cells," appeared in the online edition of The Journal of the Electrochemical Society on January 5. The other two authors were James Gilbert and Ilya Shkrob, both with Argonne.

The research was funded by DOE's Vehicle Technologies Office.

Source: Argonne National Laboratory

Published May 2017

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