Breakthrough could double energy density of lithium-ion batteries

A new polymer incorporated into Li-ion batteries could dramatically improve their performance.

New cathode might triple energy storage of lithium-ion batteries

A new step forward in our transition towards renewable energy.

New lithium-ion battery operates at -70 C, a record low

This will make electric car drivers in Siberia very happy.

Samsung almost doubled the capacity of lithium-ion batteries by adding graphene

In a recent paper published in Nature, researchers at the Samsung Advanced Institute of Technology report how they nearly doubled the charge carrying capability of a lithium-ion battery by coating the silicon anodes with graphene. Paired with recent advances in graphene deposition and manufacturing, this sort of tech of could very well end up powering your notebook or phone a couple years from now.

What an overheated Lithium-ion battery looks like, inside and out

Lithium-ion batteries have pervaded most mobile technologies, including phones, notebooks or electric vehicles. Scientists involved in lithium-ion batteries are mainly interested in increasing the energy density so they can last longer and accelerating the charging time, but also avoiding failures. You can watch on YouTube a myriad of such fails, like batteries exploding and such. Thankfully, these events are particularly rare, yet they signal there’s still much room for improvement. University College London researchers were interested in studying how lithium-ion batteries perform under a certain kind of stress resulting from overheating, and recorded the first thermal failure using thermal imaging and non-invasive high speed imaging techniques to observe the internal structure. This way, they recorded both what happens outside and inside the battery when it overheats.

New Aluminum-ion battery fully charges in under a minute – 100 times faster than your laptop

Renewable energy and electric vehicles not only need high density storage mediums to become successful, but ones that can be replenished fast as well. A new battery, very similar to the popular lithium-ion variety used to power your smartphone, charges in under a minute and still works perfectly after 7000 cycles. Moreover, the battery is based on aluminium making it both easier and cheaper to manufacture.

New lithium ion battery cathod can withstand 25,000 cycles. Your laptop battery only has 300

Using approximate computational methods, researchers at the SHARP Corporation and Kyoto Universities have identified a new battery material that can retain charge even after a massive amount of charge and discharge cycles. Experiments suggest that the new lithium ion battery that uses a co-substitute of lithium iron phosphate as the cathode can retain 70% of its charge even after 25,000 cycles. In comparison, a typical laptop battery can only retain 80% of its initial charge after 300 cycles.

Why your battery is dying – the answer could vastly improve battery life

If you’ve owned a smartphone or laptop for more than two years and use the gadgets frequently, then you’ve most likely noticed, to your exasperation, how short the battery life is compared to when the product was first shipped. Rechargeable batteries have been around for more than 100 years, but it’s only recently that scientists are beginning to understand what

Sand-based batteries last three times longer than conventional ones

Expect the price of sand to skyrocket! Researchers at  University of California, Riverside have devised a coin-sized battery that uses silicone at its anode (negative side), instead of the over-used graphite, that lasts up to three times longer than conventional lithium-ion batteries. The key of the research is the silicon extraction method which uses quartz-rich sand as the feedstock and

Developing antimony nanocrystals for better batteries

Researchers from ETH Zurich and Empa have for the first time succeeded in creating uniform antimony nanocrystals. These nanocrystals are able to store a large number of both lithium and sodium ions, operating at a very high rate – in normal English, this means that they can potentially be used as alternative anode materials in future high-energy-density batteries. Antimony (also

Viruses assemble key components for the lithium-air batteries of the future

In a synergy between biology and electrochemistry, researchers at MIT cleverly exploited genetically modified viruses to assemble metal molecules into extremely thin nanowires that can be used as cathodes in a lithium-air battery. This type of battery has been thoroughly researched in the past few years and has sparked the interest of scientists because of its tremendous potential to store

Synthetic ‘supercapacitor’ material combines rapid energy storage and release

Scientists at the UCLA Henry Samueli School of Engineering and Applied Science have synthesized a form of niobium oxide that exhibits extraordinary energy storage capabilities, basically combining the tremendous advantages of lithium-ion batteries and supercapacitors all into one material, while at the same time stripping the individual disadvantages out of the picture. The material is seen as having an enormous

Stretchy electronics grow even further with flexible batteries

In just a couple of years, electronics will cross a new frontier of practicability and aesthetics as consumer goods will transition to flexible electronics. We’ve told you all about fantastic electronics that can stretch multiple times their own size all while housing delicate circuitry, hinting to prospects where they could be easily embedded into clothing or highly dynamic environments. Recently

‘Green’ batteries made from a red dye plant as an alternative to toxic batteries

Researchers at Rice University and City College of New York have devised rechargeable lithium-ion batteries using a substance extracted from the madder plant as a cathode. The plant has been used since ancient times as a dye, and only recently have researchers learned about its fantastic capabilities it poses as an alternative green battery. The madder plant or  Rubia tinctorum is a potent source