tag: batteries

Power/Performance Bits: Oct. 6
By Jesse Allen - 06 Oct, 2020 - Comments: 0

Waste plastic supercapacitor Researchers from the University of California Riverside found a way to recycle waste plastic into energy storage devices. The work focused on polyethylene terephthalate plastic waste, or PET, which is found in soda bottles and many other consumer products. The researchers first dissolved pieces of PET plastic bottles in a solvent. Using electrospinning, they fab... » read more

Startup Funding: September 2020
By Jesse Allen - 01 Oct, 2020 - Comments: 0

It was a good month for startups, with big rounds in automotive, data centers, and AI. A new startup with big backing is taking aim at energy inefficiency in the data center, and another is looking to make the industrial IoT battery-free. SK Hynix founded a new company to analyze semiconductor manufacturing data, and one of China's EV companies sees a massive cash infusion. This month, we look ... » read more

Power/Performance Bits: Sept. 22
By Jesse Allen - 22 Sep, 2020 - Comments: 0

Drawing sensors on skin Researchers from the University of Houston and University of Chicago created an ink pen that can draw multifunctional sensors and circuits directly on skin. These "drawn-on-skin electronics" aim to provide more precise health data, free of the artifacts that are associated with wearable devices and flexible electronic patches. Caused when the sensor doesn't move prec... » read more

The Battery Problem
By Ed Sperling - 14 Sep, 2020 - Comments: 2

The fires sweeping the West Coast of the United States point to the need for a whole different way of managing power on both a macro and a micro level. Since the millennium, the power demand from data centers and from mobile devices has been climbing steadily. There are roughly 7.8 billion people on the planet, up from 6.115 billion people in 2000, according to the World Bank. Many of them o... » read more

Power/Performance Bits: Sept. 9
By Jesse Allen - 09 Sep, 2020 - Comments: 0

Smaller, cheaper integrated photonics Researchers from the University of California Santa Barbara, California Institute of Technology (Caltech), and Ecole Polytechnique Fédérale de Lausanne (EPFL) developed a way to integrate an optical frequency comb on a silicon photonic chip. Optical frequency combs are collections of equally spaced frequencies of laser light (so called because when pl... » read more

Power/Performance Bits: July 14
By Jesse Allen - 14 Jul, 2020 - Comments: 0

5G switches Researchers from the University of Texas at Austin and University of Lille built a new radio frequency switch that could save power in 5G devices when not actively jumping between different networks and spectrum frequencies. “It has become clear that the existing switches consume significant amounts of power, and that power consumed is useless power,” said Deji Akinwande, a ... » read more

Auto Power Becoming Much More Complex
By Bryon Moyer - 14 May, 2020 - Comments: 0

Rising electronics content in automobiles is putting increased focus on automotive power delivery networks (PDNs). Safety implications mean that thorough power design and verification, along with novel power isolation techniques, are needed at the vehicle level, involving both electrical and mechanical considerations. The electronic takeover can be measured by the percentage that electronic ... » read more

Power/Performance Bits: May 11
By Jesse Allen - 11 May, 2020 - Comments: 0

Light-emitting silicon Researchers from the Eindhoven University of Technology, Friedrich-Schiller-Universität Jena, Johannes Kepler University, and Technische Universität München developed a silicon germanium alloy that can emit light, paving the way for a silicon laser that could be integrated for on-chip and chip-to-chip communication. Bulk silicon is extremely inefficient at emitting... » read more

Simulation-driven EV Battery Pack Design And Manufacturing In The Decade Of Vehicle Electrification
By Puneet Sinha - 07 May, 2020 - Comments: 0

In the last decade, the electric vehicle (EV) industry has grown tremendously from just few offerings to today, when every automaker is working to electrify its vehicle portfolio. A lion’s share of this growth can be attributed to the advancements in lithium-ion (Li-ion) battery technology. Since 2010, Li-ion battery costs have come down by 87% [1] and energy density has tripled [2]. Automake... » read more

Power/Performance Bits: April 21
By Jesse Allen - 21 Apr, 2020 - Comments: 0

Focus-free lens Researchers from the University of Utah developed a new lens that doesn't require focusing. They present it as an alternative to the multiple lenses common in smartphone cameras. "Our flat lenses can drastically reduce the weight, complexity and cost of cameras and other imaging systems, while increasing their functionality," said research team leader Rajesh Menon from the U... » read more

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