MSU chemists created a material able to enhance a charge rate of li-ion batteries drastically
Nowadays Li-ion batteries power a wide range of electronic devices: mobile phones, tablets, laptops. They became popular in 90s and subsequently ousted widespread nickel-metal hydride batteries.
However, Li-ion batteries suffer a number of disadvantages. For example, their capacity may drop when temperature falls below zero. The price is also discomforting, which is mostly caused by use of expensive lithium-containing materials. For instance, Li-ion batteries make about half a price of a popular electro car Tesla Model S. On the other hand, Li-ion batteries are compact, easy to use and highly capacious, which means that your device would live long having a relatively small battery.
A key element of the Li-ion batteries limiting its capacity is a material used for its cathode. For the majority of the materials their capacity limit has already been reached. Hence, scientists and engineers are actively searching for new cathode materials capable of recharging completely within minutes, operate under high current densities, and store more energy.
One of the most prospective classes of cathode materials for a new generation of Li-ion batteries are fluoride-phosphates of transition metals.
The work directed by Prof. Evgeny Antipov (correspondent member of the Russian Academy of Sciences and the head of the MSU Electrochemistry Department) was carried out by a team of MSU research scientists together with their Russian and Belgian colleagues. It was devoted to creation of a new high-power cathode material based on a fluoride-phosphate of vanadium and potassium for Li-ion batteries. The results were published in Chemistry of Materials(current IF — 8.354)
‘The work is based on a simple idea of geometric and crystal-chemical conformity of ionic sublattices,’ — says Stanislav Fedotov, one of the authors, junior research scientist at Electrochemistry Department, Faculty of Chemistry, MSU.
The scientists succeeded to stabilize a unique crystal structure, which provides a fast transport of lithium ions through spatial cavities and channels. Consequently, the suggested cathode material demonstrated high charge/discharge rates (down to 90 seconds) retaining more than 75% of an initial specific capacity. With its morphology and composition optimized, this material may become a serious contender to such well-known and commercialized high-power cathode materials as NaSICON.
According to the authors, the results of the presented work may not only open up ample opportunities in searching and further synthesis of new cathode materials for Li-ion batteries, but also promote the development of a new battery type where a role of a mobile ion (a charge carrier) would be performed by potassium ions instead of lithium.
‘It is assumed that such batteries would not only deliver high energy density, but would also be economically attractive due to a replacement of expensive lithium-containing components with cheaper and hence affordable potassium-containing analogues’ — explains Stanislav Fedotov.
Learn more: New material to enhance battery life
The Latest on: Li-ion batteries
via Google News
The Latest on: Li-ion batteries
- Solar Batteries Market Technology Advancement Outlook 2019on October 18, 2019 at 2:36 pm
Asolar battery, or photovoltaic cell, is an electrical device that converts theenergy of light directly into electricity by the photovoltaic effect. Accordingto this market study, the Li-ion segment ...
- Traction Battery Market showing footprints for Strong Annual Saleson October 18, 2019 at 10:45 am
The Global Traction Battery Market survey analysis offers energetic visions to conclude and study ... It's vital you keep your market knowledge up to date segmented by Applications [Electric Vehicles, ...
- Scientists develop a lithium-ion battery that won't catch fireon October 18, 2019 at 4:14 am
A flexible lithium-ion battery designed by a team of researchers from the Johns Hopkins Applied Physics Laboratory and built to operate under extreme conditions—including cutting, submersion, and ...
- The Death Of The World’s Most Popular Batteryon October 17, 2019 at 5:26 pm
There are several economic considerations, which can be demonstrated with a case study. Tim Karimov, who is the President at California-based lithium-ion battery supplier OneCharge, has said their ...
- Global Li-ion Battery Market Analysis, Trends, and Forecasts 2019-2025on October 15, 2019 at 9:15 pm
Dublin, Oct. 15, 2019 (GLOBE NEWSWIRE) -- The "Li-ion Battery - Market Analysis, Trends, and Forecasts" report has been added to ResearchAndMarkets.com's offering. Li-ion Battery market worldwide ...
- How did the Li-ion battery set off a technology revolution?on October 12, 2019 at 11:32 am
The 2019 Nobel Prize for Chemistry was awarded to John B. Goodenough, M. Stanley Whittingham and Akira Yoshino for working towards the development of practical lithium-ion batteries. The story so far: ...
- Chem Nobel honours work that led to the Li-ion batteryon October 11, 2019 at 12:38 pm
While the nickel-cadmium battery, discovered much earlier in 1899, powered most devices, research on Li-ion power storage only took off when Exxon, amidst the global oil crisis, commissioned a study ...
- Products With the Best Battery Life From Consumer Reports' Testson October 10, 2019 at 7:49 am
Since then, the list of uses has quickly multiplied as the batteries continue to get smaller, longer-lasting, and more powerful. CR often focuses on those rare times when Li-ion batteries malfunction, ...
- 'Li-ion batteries can help create fossil fuel-free society': Japan Nobel winner Yoshinoon October 10, 2019 at 1:00 am
TOKYO -- Akira Yoshino was announced as one of the recipients of this year's Nobel Prize in chemistry by the Royal Swedish Academy of Sciences on Oct. 9, for his work in the development of lithium ...
- Li-ion batteries: Science 'directly into your hand'on October 9, 2019 at 5:10 pm
"I am literally holding a phone in my hand right now." - What changed? - Unlike their predecessor, lead acid batteries developed in the mid-19th century, li-ion batteries are rechargeable. They are ...
via Bing News