battery breakthroughs? here\'s how your devices could be powered in the future

by:CTECHi     2020-01-18
You may have read the headlines over the years, and the shout battery allows your phone to last for weeks and charge in seconds.
Battery Breakthrough-
We were told they were coming.
\"The holy grail of battery life is found\", \"30 second charge\", \"battery breakthrough provides 30 times the power \"-
These were headlines three to four years ago.
Where are they?
In an interview with ABC News, two researchers published their thoughts on some of the most exciting technologies in the field and the factors that still hold it back.
Most devices, such as mobile phones, laptops and cameras, use rechargeable lithium-ion batteries.
Larger lithium-ion batteries are also powering electric vehicles and storing energy from solar energy, just like Tesla\'s planned \"world\'s largest battery\" in South Australia.
Lithium is the lightest metal and is very attractive to the battery because it can store the highest amount of electricity by weight, and its energy density is much higher compared to the nickel battery or the AAs package in the supermarket.
But they have some shortcomings.
Security is a problem.
The battery contains flammable liquid electrolyte.
As a result, a battery fire may occur, although rare.
If the laptop is on fire during your inspection, the airline is particularly worried about thisin luggage.
Better density: this means that the battery can store more charge at the same physical size.
Life Improvement: lithium ion batteries can only be charged so many times before they start to lose capacity.
After about three years, you may find that your phone is not as long as before.
Safety: lithium ion batteries are easy to catch fire (
Remember Samsung Note 7? )
Researchers are looking for new materials that are safer.
The work is done on a solid basis
State battery-
They contain solid electrolyte instead of flammable liquid.
The holy grail of battery research is lithium-air (Li-air)
According to Dr. Robert Kerr of the Institute of cutting-edge materials at Deakin University.
This type of battery can theoretically maintain more than 40 times the amount of power as a lithium-ion battery of the same weight.
As the name implies, lithium-
The air battery draws oxygen from the air.
This causes a reaction in lithium that releases energy.
It sounds promising, but there are still big hurdles for researchers to cross. \"While a Li-
Ions can maintain 80 of their capacity after thousands of cycles
After dozens of times, the air battery may fade to the same extent, \"said Dr. Kerr.
Professor Harry Horst, director of energy Lancaster University at Lancaster University, UK, agrees with lithium-
The air is \"very promising\" so far, but only in laboratory size.
\"So far, there is no large
Prototype of scale, which also means no quality
\"The manufacturing method is in place,\" he said.
Big question about Li
Air will limit the necessary reception of oxygen by the cathode, thus limiting the degree of tightness in the manufacture of such a system.
They may always be large but light.
Dr. Kerr believes Lee.
Air, which is more than 10 years away from commercial launch, is considered \"Horizon Technology \".
Sulfur is one of the promising elements scientists want to join the battery with lithium. A lithium-sulphur (Li-S)
Dr. Kerr said that compared to today\'s lithium-ion battery, the energy density of the battery may reach about two to three times.
This will provide you with a more durable cell phone or laptop battery of the same size.
Sounds good, but there\'s a problem. Currently, Li-
S battery lost 100 capacity after only 1,000 cycles, while Li-ion.
Life is the problem that these batteries need to solve.
Dr. Kerr believes that it may take five to ten years for these devices to start replacing the batteries in the device.
There are other types of batteries that are also being studied, such as zinc-
High air density has been used in small devices such as hearing aids.
However, whether it is life, safety or production scale, each of these battery technologies still has problems that need to be solved in mainstream use. A sodium-
Battery-based batteries are ideal for home energy storage or use online due to low cost, but they won\'t be great for your phone.
This is because the energy density of sodium is lower than lithium, which means that the battery must be much larger to maintain the same amount of electricity.
The use of sodium is that it is much richer on Earth than lithium, and this technology may be put on the same production line currently set up to make lithium
It\'s an ion battery, Dr. Kerr said.
This makes it cheap and easy to produce.
Professor Horst said he expects the batteries to enter the market \"in the near future. \"Na-ion [sodium-ion]
Technology has the potential to require cheaper, richer minerals, which will make it more suitable for fixed storage (
Such as in a family or office building),\" he said.
\"For fixed storage devices, the price per kilowatt is more important than small size or light weight, so it is a different market compared to smartphones or cars.
Theme: Consumers
Electronics, scienceand-
Technology, breakthrough, chemistry, computerand-
Mobile technology
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