Stabilizing lithium-ion batteries: The vanadium touch

Simple, effective modification improves the sustainability and performance of high-energy lithium-ion batteries

13-Nov-2024 - As demand surges for electric vehicles and energy storage systems, lithium-ion batteries need to deliver higher energy densities at lower costs. While conventional cathode materials like LiFePO4 and Li-Ni-Co-Mn-O are widely used, they often fail to balance performance with affordability. ...

Improving lithium-sulfur batteries with metal organic framework-based materials

04-Mar-2024 - Current lithium-ion battery technology does not have the energy density necessary to meet the demands for renewable energy. In theory, lithium-sulfur batteries could be a viable alternative with a higher specific capacity and energy density. However, sulfur has disadvantages that currently limit ...

Lithium-ion batteries are no longer the gold standard in battery tech

On the way to safer and more powerful energy sources

20-Nov-2023 - The use of lithium metal as the anode for batteries is one of the smarter options with better energy density than other materials. However, the interface between the electrode and electrolyte has quite a few issues that can be addressed for a safer and more functional outcome in the future. The ...

Bridging the best of both electrolyte worlds for a better lithium-ion battery

Researchers apply a ceramic conductor to a polymer electrolyte to increase conductivity

10-Nov-2023 - Lithium-ion batteries powered the device on which these words appear. From phones and laptops to electric vehicles, lithium-ion batteries are critical to the technology of the modern world — but they can also explode. Comprising negatively and positively charged electrodes and an electrolyte to ...

Electrodes with hollow nanotubes improve performance of potassium-ion batteries

02-Nov-2023 - Researchers who are working to find alternatives to lithium-ion batteries have turned their attention to potassium-ion batteries. Potassium is an abundant resource and the technology functions in much the same way as lithium-ion batteries, but these batteries have not been developed at a large ...

Novel preparation of next-generation anode delivers boost to lithium-ion batteries

04-Jan-2023 - The hunt for the next generation of materials for anodes in lithium-ion batteries has long suffered from a series of parasitic chemical reactions for many of the proposed replacements for the graphite thatis conventionally used. A novel preparation technique for a silicon-monoxide-carbon ...

How a common additive gives lithium-ion batteries a boost

Researchers have identified what makes a common electrolyte additive so effective at improving the performance of batteries using a lithium cobalt oxide cathode

28-Sep-2022 - Nitriles—an organic compound with a carbon atom triple-bonded to a nitrogen atom—are commonly added to the electrolyte formula for batteries using a lithium cobalt oxide cathode, making such batteries come much closer to realizing their full theoretical performance. Until now, battery researchers ...

Chemical additives improve stability of high-density lithium-ion batteries

21-Sep-2022 - As our need for high-density batteries increases with widespread adoption of electric cars and alternative energy sources, improving the stability and capacity of lithium-ion batteries is a necessity. Current lithium-ion battery technology, which often uses nickel, is less stable at extreme ...

Newly proposed strategy to significantly improve lithium–sulfur battery performance

Researchers developed a sulfur oxidation-reduction (redox) mediator to improve lithium–sulfur battery’s sluggish reaction kinetics which has limited the battery’s energy density

24-Jun-2022 - Lithium-sulfur batteries hold strong promise as next-generation energy storage devices because of their ultrahigh theoretical energy density. However, the actual energy density of lithium–sulfur batteries is far from the theoretical value because of the cathode’s severe limitations caused by the ...

Novel use of iron-laced carbon nanofibers yields high-performance energy storage

11-Apr-2022 - A new study by Chinese researchers demonstrates a novel approach to enhancing the storage performance of batteries and capacitors. The researchers developed a simple yet efficient way to produce a material with excellent performance for use in devices that rely on lithium-ion storage. They ...