Energy Harvesting

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.

Researchers Unveil Scalable Graphene Technology to Revolutionize Battery Safety and Performance

Researchers have developed a pioneering technique for producing large-scale graphene current collectors. This breakthrough promises to significantly enhance the safety and performance of lithium-ion batteries (LIBs), addressing a critical challenge in energy storage technology. Read on to learn more.

New Battery Cathode Material Could Revolutionize EV Market and Energy Storage

A multi-institutional research team led by Hailong Chen has developed a new, low-cost cathode that could radically improve lithium-ion batteries (LIBs) — potentially transforming the electric vehicle (EV) market and large-scale energy storage systems. Read on to learn more.

Dormant Capacity Reserve in Lithium-Ion Batteries Detected

Using transmission electron microscopes, Researchers at Graz University of Technology were able to systematically track lithium ions as they traveled through battery material, map their arrangement in the crystal lattice of an iron phosphate cathode with unprecedented resolution, and precisely quantify their distribution in the crystal. Read on to learn more.

3D-Printed Reactor Core Makes Solar Fuel Production More Efficient

In recent years, engineers at ETH Zurich have developed the technology to produce liquid fuels from sunlight and air. In 2019, they demonstrated the entire thermochemical process chain under real conditions for the first time, in the middle of Zurich, on the roof of ETH Machine Laboratory. Two ETH spin-offs, Climeworks and Synhelion, are further developing and commercializing the technologies. Read on to learn more.

Solid-State Lithium-Sulfur Battery Tech

Whether for large electric vehicle systems or small electronic devices, SABERS can potentially set new benchmarks in energy density and power, all while offering the utmost in safety and reliability. Read on to learn more.

A Metamaterial that Traps, Amplifies Micro-Vibrations in Small Areas

The Korea Research Institute of Standards and Science has developed a metamaterial that traps and amplifies micro-vibrations in small areas. This innovation is expected to increase the power output of energy harvesting, which converts wasted vibration energy into electricity, and accelerate its commercialization. Read on to learn more.

How Much Do You Know About Energy Harvesting?

Energy harvesting is an increasingly important technology. It’s important in many different fields, from the Internet of Things to medicine and beyond. How much do you know about energy harvesting? Test your knowledge with this quiz.

A Stretchable, Wearable Device that Fully Utilizes Body Heat

UW researchers have developed a flexible, durable electronic prototype that can harvest energy from body heat and turn it into electricity that can be used to power small electronics.