•   
  •   

Tech & Science Li-ion batteries: Science 'directly into your hand'

12:50  10 october  2019
12:50  10 october  2019 Source:   msn.com

Apple explains why iPhones now show an ominous warning after ‘unauthorized’ battery replacements

Apple explains why iPhones now show an ominous warning after ‘unauthorized’ battery replacements The company claims it’s all about keeping customers safe

Lithium - ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars. Furthermore, they can be used in combination with renewable "The practical application of science for the benefit of humanity; fundamental science placed directly into your hand ," he said.

Lithium - ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars. Furthermore, they can be used in combination with renewable "The practical application of science for the benefit of humanity; fundamental science placed directly into your hand ," he said.

a car engine: Lithium-ion batteries have helped reduce our reliance on planet-warming fossil fuels, especially in electric cars. © AFP PHOTO / TOSHIFUMI KITAMURA Lithium-ion batteries have helped reduce our reliance on planet-warming fossil fuels, especially in electric cars.

They are omnipresent and essential to navigating modern life. Small, light, rechargeable: lithium ion batteries have revolutionised our world in less than three decades.

On Wednesday, John Goodenough, Stanley Whittingham and Akira Yoshino, the inventors of a technology taken for granted by most, got the most prestigious chemistry nod of all: a Nobel Prize.

"They created a rechargeable world," stated the Royal Swedish Academy of Sciences, which awards the accolade.

OtterBox’s latest creation is a stackable wireless charging battery system

OtterBox’s latest creation is a stackable wireless charging battery system The next logical step from making phone cases

Lithium - ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars. Furthermore, they can be used in combination with renewable “The practical application of science for the benefit of humanity; fundamental science placed directly into your hand ,” he said.

Lithium - ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars. Furthermore, they can be used in combination with renewable “The practical application of science for the benefit of humanity; fundamental science placed directly into your hand ,” he said.

- What's the big deal? -

Only commercialised in 1991, lithium ion batteries now power millions upon millions of cellphones, laptops, tablets, cameras, hearing aids, pacemakers, solar panels, scooters, bikes and even long-distance electric cars.

"Over two thirds of the world's population own a mobile device be it a smartphone, a laptop or tablet, and nearly all powered by rechargeable lithium-ion batteries. They are the hidden workhorses of the mobile era," Paul Coxon of the University of Cambridge's Department of Materials Science and Metallurgy told AFP.

They have considerably boosted human mobility, and allowed millions in developing countries to access information and services online with just a mobile phone.

Lithium-ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars.

The finding of the oldest human skull changes evolution science

The finding of the oldest human skull changes evolution science This latest discovery has given new insights into our evolutionary past, but also increased the complexity of the relationships between early hominins. The mid Pliocene (5.3m-2.6m years ago) has become crowded with multiple, contemporary and geographically widespread species. Clarifying the relationships between these species, confidently characterising their morphology, and deciphering the complex and intricate story about hominin evolution is not a simple task.

Lithium - ion batteries have also reduced our reliance on planet-warming fossil fuels, especially in electric cars. Lithium ion batteries are used in a range of electronics, from of humanity; fundamental science placed directly . Whittingham and Akira Yoshino, the inventors of a into your hand ," he said.

A lithium - ion battery is a family of rechargeable battery types in which lithium ions move from the The Li ions make the reverse journey during charging. A lithium ion battery (or battery pack) is Lithium - ion batteries for mobile phones, hand -held devices and laptop computers are more compact

Furthermore, they can be used in combination with renewable but fluctuating energy sources such as the Sun or wind, capturing and storing energy to be re-used later.

For Coxon, the lithium ion battery is a worthy Nobel recipient as it plays to the very origins of the prestigious prize. 

"The practical application of science for the benefit of humanity; fundamental science placed directly into your hand," he said. "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 smaller, lighter, longer lasting and can be made to be more powerful.

Electric car batteries "no longer weigh two tonnes but 300 kilogrammes (660 pounds)," said Sara Snogerup Linse, a professor in physical chemistry and a member of the Nobel Committee for Chemistry. 

NASA chief says security needed to explore space safely

  NASA chief says security needed to explore space safely The head of NASA said Wednesday that space security is necessary so that the United States, Japan and others can safely explore the moon and Mars. NASA Administrator Jim Bridenstine also said during his Tokyo visit that he wants to take the U.S. space partnership with Japan to a new level by stepping up cooperation by going to the moon and eventually to Mars together.But he said that will be possible only if space is kept a safe place."NASA fully supports the idea of space security," he said.Japan and the U.S. have long cooperated in space science, including the ongoing International Space Station program.

Discover what causes Li - ion to age and what the battery user can do to prolong its life. Battery research is focusing on lithium chemistries so much that one could imagine that the battery future lies solely in lithium . Industry, on the other hand , is more concerned about longevity and may choose

A portable power supply has become the lifeline of the modern technological world, especially the lithium - ion battery . Imagine a world where all cars are

- How do they work? -

When a battery is connected to a circuit, charged ions move inside the battery, usually in a chemical solution, between two electrodes -- an anode and a cathode. 

Chemical reactions take place at each of the electrodes, creating a buildup of electrons on one end. The electrons seek to rebalance, but cannot move through the battery, forcing them to travel through the circuit, giving off electric energy.

The positive electrode is made from a composite of lithium -- the lightest metal known to man and the key to the design's success, according to Olof Ramstroem, a fellow committee member.

"Lithium has such enormously attractive properties and that means you can get a very lightweight battery that is small with high power and efficiency," he said after Wednesday's announcement in Stockholm. 

"Lithium is very reactive... which is what we need -- we need the electrons from the lithium. This is all about trying to tame that and get it into that small battery package that is really useful to us."

- The downside -

An article published in the journal Nature last July warned that reserves of raw materials used in lithium ion batteries such as cobalt and nickel, are scarce and expensive and fast running out.

Scientist, 97, becomes oldest ever winner of Nobel Prize

  Scientist, 97, becomes oldest ever winner of Nobel Prize Three scientists have taken home the Nobel Prize for Chemistry, including the oldest ever winner. © Imagebridge John Goodenough is the oldest every Nobel winner The trio, John B Goodenough, Stanley Whittingham and Akira Yoshino, share the nine million krona prize (£740,099).Mr Goodenough is the oldest ever winner of a Nobel prize at the age of 97.The three worked together on developing and refining rechargeable lithium-ion batteries, making the age of global information technology, mobile and fossil-fuel free revolutions possible.

Li - ion batteries contain a protection circuit that shields the battery against abuse. This important safeguard also turns the battery off and makes it unusable if over-discharged. Slipping into sleep mode can happen when storing a Li - ion pack in a discharged state for any length of time as self-discharge

How many lithium - ion [ Li - ion ] batteries have you used today? Lithium - ion batteries are practically everywhere, but how do they work? This episode will go deep into detail and explore the lithium - ion battery in your smartphone and answer each of these questions.

Lithium is found in a range of minerals and in salt or brine, while production of the electrodes require rare metals such as cobalt and nickel.

"We could not necessarily have predicted 40 or 50 years ago that tantalum, indium, all these interesting elements would become very important," said Coxon, pointing to environmental harms and stresses on infrastructure in places where the minerals are found -- especially in South America.

"It places pressure on how we ethically source these."

Large quantities of spent lithium ion battery components end up in landfills, he added. They are frequently shipped off to recycling facilities, often in developing countries, where they are stripped to their base parts and the reusable bits recycled.

"It is a very important environmental challenge," said Coxon.

Added Maeva Philippot, an electrical engineering researcher at the Vrije Universiteit Brussels: "Recycling will become more important as we have more and more batteries reaching the end of their lives."

- Looking ahead -

Scientists and engineers around the world are working to make li-ion batteries even smaller, longer lasting, quicker to charge and less volatile.

They are known to overheat and sometimes even explode, and are relatively expensive to produce, particularly due to the high cost of nickel and cobalt.

"There are new chemistries that are coming that will allow us to make even smaller batteries," said Philippot.

As for recycling: "Europe is making a new directive for batteries at the end of their lives and how they could be recycled and reused in other devices. 

"For instance, electric vehicle batteries could be used at home to store energy at home and be charged by solar panels. There are many projects looking at the 'second life' or re-use of batteries."

The south of the subcontinent: Kerala, India's flagship country .
A burnt-out Tesla in Austria has raised questions about how to deal with e-car wrecks and their batteries. Very few companies can and want to properly dispose of damaged systems. © Freiwillige Feuerwehr Kössen There is no longer any indication of the original exterior of the accident car, which has now triggered a discussion about damaged batteries.

—   Share news in the SOC. Networks

Topical videos:

usr: 1
This is interesting!