Energy Harvesting

Fast Charging of Electric Cars Without Cables

In a cooperative project, Empa researchers investigated inductive charging of electric cars. This is not only similarly efficient to cable-based charging but could also simplify the integration...

Batteries that Can Withstand the Cold

Researchers at Texas A&M University have developed a battery design that continues operating through the coldest conditions.

A Smart Sensor for Better Monitoring

A major challenge in self-powered wearable sensors for health care monitoring is distinguishing different signals when they occur at the same time. Researchers from Penn State and China’s Hebei University of Technology addressed this issue by uncovering a new property of a sensor material, enabling the team to develop a new type of flexible sensor that can accurately measure both temperature and physical strain simultaneously but separately to more precisely pinpoint various signals.

Greener Energy? Drinkable Seawater? This Sodium-Ion Battery Breakthrough May Deliver Just that

Researchers detail how an existing sodium-based material, sodium vanadium oxide, can perform significantly better when the water it naturally contains is not removed.

The End of the Beginning: Why the EV Market Will Overcome the Loss of Tax Credits

Will EV sales in the U.S. double by the end of the decade, or more? Will the U.S. keep pace with China’s relentless iterative improvements on EV technology, or will China increasingly dominate the rapidly electrifying global transportation industry? Read on to learn more.

Breakthrough Advances Sodium-Based Battery Design

Read on to learn about research that raises the benchmark for sodium-based all-solid-state batteries and demonstrates thick cathodes that retain performance at room temperature down to subzero conditions.

Integrating Photovoltaics with Crop Production

As countries race to expand renewable energy infrastructure, balancing clean electricity production with land use for food remains a pressing challenge — especially in Japan, where mountainous terrain limits space. A recent study led by researchers from the University of Tokyo explores a promising solution: integrating solar panels with traditional rice farming in a practice known as agrivoltaics. Read on to learn more.

New Triple-Junction Tandem Solar Cells with Increased Power Efficiency

Researchers from the National University of Singapore have developed a novel triple-junction perovskite/Si tandem solar cell that can achieve a certified world-record power conversion efficiency of 27.1 percent across a solar energy absorption area of 1 sq cm, representing the best-performing triple-junction perovskite/Si tandem solar cell thus far. Read on to learn more.

How to Make Data Centers More Efficient

An innovative method developed by a team at Rice University uses solar collectors for turning waste heat from data centers into reusable electrical energy.

Solving Fleet Electrification Bottlenecks with Battery-Integrated Charging Systems

Charging infrastructure has become the primary bottleneck to fleet electrification. Despite growing demand for electric trucks and increasing pressure to decarbonize logistics operations, many fleet operators face long delays for grid upgrades, transformer installations, and permitting, at times waiting more than a year to power vehicles that have already arrived. OptiGrid was formed in response to this growing gap between vehicle readiness and infrastructure availability. Read on to learn more.

New Products

See the new products, including Nexperia's ESD diodes designed to protect 48V automotive data communications networks against the destructive effects of electrostatic discharge events; Comau's collaboration with Intecells to optimize the use of cold plasma within industrial cell manufacturing processes; Carlo Gavazzi Automation's UWP-DLB Series, an advanced solution delivering intelligent dynamic load balancing for EV charging systems; and more.

New AI Tool Predicts Lithium Metal Anode Failures from Just Two Early Cycles

In a groundbreaking study, researchers at Tsinghua Shenzhen International Graduate School and the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, have developed a predictive model that uses electrochemical data from the initial cycles of LMBs to forecast potential failures. Read on to learn more.

Finding the Length ‘Sweet Spot’ for Yarn-Shaped Supercapacitors

Researchers at North Carolina State University have now identified a “sweet spot” at which the length of a threadlike energy storage technology called a “yarn-shaped supercapacitor” yields the highest and most efficient flow of energy per unit length. Read on to learn more.

Black Metal Could Give a Heavy Boost to Solar Power Generation

In the quest for energy independence, researchers have studied solar thermoelectric generators (STEGs) as a promising source of solar electricity generation. Unlike the...

How Much Do You Know About Wind Turbines?

Wind turbines are imperative in our search for renewable energy as we aim to reduce our reliance on fossil fuels. How much do you know about wind turbines? Find out with this quiz.

Flexible Silicon Photovoltaics: A Breakthrough in Space-Grade Solar Power

In-space manufacturing is expected to become a core part of future space economy by using assets in orbits or beyond Earth orbit for use in space. Tech Briefs interviewed space-focused solar energy startup Solestial’s CTO Stanislau Herasimenka about the key technology developments leading to this increased momentum for space-based manufacturing and the role solar power will play in it. Read on for the full interview with Herasimenka, edited for length and clarity.

How ISS Will Be Evaluating Photovoltaic Materials

Solar cells account for approximately six percent of the electricity used on Earth; however, in space, they play a significantly larger role, with nearly all satellites relying on advanced solar cells for their power. That’s why Georgia Tech researchers will soon be sending 18 photovoltaic cells to the International Space Station (ISS) for a study of how space conditions affect the devices’ operation over time. Read on to learn more.

Laying the Building Blocks for the EV Smart Grid

This article introduces the fundamental concepts behind EV load management, which allows fleet operators to fit more EV chargers on the utility service that they currently have. Read on to learn more.

Smoothing Over Rough Edges in Batteries

Battery performance suffers over time, like when a phone needs to be charged more frequently after years of use. A thin film that forms on the metal anode when the battery is charging and discharging plays a part in that issue. This film has benefits, but its roughness gradually wears the battery down. Researchers have discovered a temporary version of this film that appears at rapid discharge speeds and dissolves back into the battery when the process finishes. Read on to learn more.

An Affordable, Sustainable New Battery Technology

Traditional Li-ion batteries rely on graphite as an anode material. However, the same graphite structure fails when it comes to sodium or potassium. But, by rethinking the shape of carbon at the microscopic level, researchers found a workaround.

New Smart Sensor Takes the Pain Out of Wound Monitoring

A major challenge in self-powered wearable sensors for health care monitoring is distinguishing different signals when they occur at the same time. Researchers addressed this issue by uncovering a new property of a sensor material, enabling the team to develop a new type of flexible sensor that can accurately measure both temperature and physical strain simultaneously but separately to more precisely pinpoint various signals. Read on to learn more.

Harvesting Energy from Microbes in Soil

A Northwestern University-led team of researchers has developed a new fuel cell that harvests energy from microbes living in dirt. About the size of a standard paperback book, the completely soil-powered technology could fuel underground sensors used in precision agriculture and green infrastructure. Read on to learn more.

3 Energy Technologies that Will Power Your Interest

Watch this video to learn more about three new energy technologies. One is from Rice University; one is from Université Grenoble Alpes, Grenoble, France and University of San Diego, CA; and the last one is from Swiss Federal Laboratories for Materials Science and Technology (Empa).

Crafting Safe, Long-Cyclable Lithium Metal Batteries for High Temperatures

A research team led by Professor Dong-Myeong Shin of the Department of Mechanical Engineering at the University of Hong Kong has developed a new generation of lithium metal batteries, representing a significant advancement in the field. Here, an interview with Shin to learn more about the technology.

Researchers Discover a Surprising Way to Jump-Start Battery Performance

In a study published in Joule, researchers at the SLAC-Stanford Battery Center report that giving batteries a first charge at unusually high currents increased their average lifespan by 50 percent while decreasing the initial charging time from 10 hours to just 20 minutes. Read on to learn more.