Battery Technology

By improving a water-in-salt battery prototype, researchers believe they are well on their way to developing new high energy batteries. A team from the University of Maryland (UMD) and the U.S. Army Research Lab (ARL) have created a new type of chemical transformation of the cathode that yields, for the first time ever, a reversible…

Soldiers carrying 15-25 pounds of batteries could carry batteries a fraction of the weight but with the same energy and improved safety, a new study shows. In the latest issue of the journal Nature, researchers at the U.S. Army Combat Capabilities Development Command’s Army Research Laboratory, the Army’s corporate research laboratory known as ARL, and…

Various use of electronics and skin-attachable devices are expected with the development of transparent battery that can both generate and store power. DGIST announced on Tuesday, April 23 that Senior Researcher Changsoon Choi’s team in the Smart Textile Research Group developed film-type graphene based multifunctional transparent energy devices. Senior Researcher Changsoon Choi’s team actively used…

Scientists from the Chalmers University of Technology in Sweden believe a new type of battery with a catholyte that contains a graphene sponge could help bring lithium-sulphur batteries to the forefront, eventually replacing lithium-ion batteries. The researchers found that a porous, sponge-like aerogel made from reduced graphene oxide acts as a freestanding electrode in the…

Since 2012, Stefan Freunberger of the Institute for Chemistry and Technology of Materials at TU Graz has been working on development of a new generation of batteries with enhanced performance and longer useful lives, and which are also cheaper to produce than current models. He believes that lithium-oxygen batteries have significant potential. In 2017, in…

Researchers at the University of California San Diego have improved their recycling process that regenerates degraded cathodes from spent lithium-ion batteries. The new process is safer and uses less energy than their previous method in restoring cathodes to their original capacity and cycle performance. Zheng Chen, a professor of nanoengineering who is affiliated with the…

Inside modern cell phones are billions of nanoscale switches that flip on and off, allowing the phone to function. These switches, called transistors, are controlled by an electrical signal that is delivered via a single battery. This configuration of one battery to power multiple components works well for today’s technologies, but there is room for…

Every year, many are quick to upgrade when new versions of the latest smartphones, tablets or other electronic devices come out, but what happens to all the batteries from the older, discarded devices? A Rice University research team believes that a deep eutectic solvent may be the answer to the growing battery-recycling problem. The solvent…

Scientists have made a surprising discovery about how strange bacteria that live in soil and sediment can conduct electricity. The bacteria do so, the researchers determined, through a seamless biological structure never before seen in nature – a structure scientists can co-opt to miniaturize electronics, create powerful-yet-tiny batteries, build pacemakers without wires and develop a…

If manufacturers of cell-phone batteries could tell which cells will last at least two years, then they could sell only those to phone makers and send the rest to makers of less demanding devices. New research shows how manufacturers could do this. The technique could be used not only to sort manufactured cells but to…

While it has long been known that solid-state batteries are a safer and more energy dense alternative to the lithium-ion batteries commonly used for electric vehicles and personal electronics, challenges remain that prevent them from being implemented on a wider-scale. However, a research team from Cornell University has discovered that by starting with liquid electrolytes…

A team of scientists including researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and SLAC National Accelerator Laboratory have identified the causes of degradation in a cathode material for lithium-ion batteries, as well as possible remedies. Their findings, published on Mar. 7 in Advanced Functional Materials, could lead to the development of…

The upcoming energy crisis and increasing power requirements of electronic devices have drawn attention to the field of energy storage. In a paper to be published in the forthcoming issue in NANO, researchers from the China University of Petroleum (East China) have summarized the recent advances in application of 2D nanomaterials on the electrode materials…

Scientists at Tokyo Tech and Okayama University found a way of greatly improving the performance of LiCoO2 cathodes in Li-ion batteries by decorating them with BaTiO3 nanodots. Most importantly, they elucidated the mechanism behind the measured results, concluding that the BaTiO3 nanodots create a special interface through which Li ions can circulate easily, even at…

Rechargeable lithium metal batteries with increased energy density, performance, and safety may be possible with a newly-developed, solid-electrolyte interphase (SEI), according to Penn State researchers. As the demand for higher-energy-density lithium metal batteries increases — for electric vehicles, smartphones, and drones — stability of the SEI has been a critical issue halting their advancement because…

A new theory could enable researchers and industry to tune and improve the performance of a material called ionic ceramics in rechargeable batteries, fuel cells and other energy applications. Ionic ceramics are made up of many faceted “grains” that meet at boundaries in ways that affect, for example, how much power a fuel cell can…

A closer look reveals how speedy charging may hamper battery performance. While gas tanks can be filled in a matter of minutes, charging the battery of an electric car takes much longer. To level the playing field and make electric vehicles more attractive, scientists are working on fast-charging technologies. Fast charging is very important for…

The lithium ion batteries that power electric vehicles and phones charge and discharge by ferrying lithium ions back and forth between two electrodes, an anode and a cathode. The more lithium ions the electrodes are able to absorb and release, the more energy the battery can store. One issue plaguing today’s commercial battery materials is…

Electronic products, electric vehicles and large-scale energy storage closely related to human life create an ever-growing demand for rechargeable batteries. Lithium-ion batteries, which are currently widely used, do not perform well in terms of energy density and safety. As for rechargeable magnesium (Mg) metal batteries developed later, the lack of Mg electrolytes capable of effectively…