mit technology aims to supercharge batteries - lithium iron phosphate battery

Scientists at the Massachusetts Institute of Technology have developed a new battery technology that may one day be able to charge the phone in 10 seconds or on an empty plug
Car battery in a few minutes-
Reinvent the way these gadgets fit into our lives.
The common type of lithium-ion battery that scientists twist, essentially, creates the equivalent
In this way, ions can easily enter the energy channel inside the material.
According to Gerbrand Ceder, a professor of materials science at MIT, this progress makes the battery charge and discharge about 100 times faster than today's lithium-ion battery.
Ceder led the work, which will be published tomorrow in the journal Nature.
"If we make a cell phone battery that can be charged in 30 seconds, I think people will change their way of life. . .
"You may be content with a smaller battery and you can almost stand and drink coffee and do that," said Ceder . ".
That's why I'm excited about it.
"Ceder started the study to solve a mystery: the battery stores energy, but the charge and discharge are relatively slow.
The charged ions migrate slowly on the battery material to generate current.
In earlier studies, Ceder's lab found that lithium ions can actually move quickly through battery materials, suggesting that other things are slowing down the rate at which lithium ions crawl on batteries.
He found when using lithium iron phosphate that these ions were put on hold because they needed to find an entry point on the surface of the material to migrate from one side of the battery to the other.
Ceder compares it to the challenge of navigating the city: unless a car can travel on a highway, it may be stuck on the road behind it.
To speed up the ion, he and graduate student Byoungwoo Kang developed a coating that enables the ion to move quickly to the entry point.
"We know that once it's on its way into the country, it should get in very, very fast," Ceder said . ".
We built a detour. -
If you have to go to Rt.
But you are in Arlington and you really want to attend Rt.
128, not city streets.
"The technology has been licensed by Umicore, a Belgian company, and Ceder believes it can be integrated into the battery in a few years, although there is no way to know when it can be bought.
Ceder said the price today will not be much more expensive than lithium-ion batteries. Ric Fulop, co-
The founder of Watertown battery company A123 Systems said his company had the option to license the technology.
"It will take a few years from here to the product, but it is very promising," said Fulop . ".
The new study did not solve one of the biggest problems in the battery ---
How to store more energy into smaller, lighter batteries.
But according to Cui Yi, a professor of materials science at Stanford University, this is still a major improvement and he is not involved in the study.
"Since the invention of the energy storage device, everyone has been paying attention to the charging and discharging rate of the battery," Cui said . ".
"Everyone wants to improve it. . .
What Professor Ceder is showing here is a huge improvement.
"Ceder believes there are many possible applications for this battery.
The battery can discharge quickly and generate an energy burst that can help electric vehicles accelerate on the highway.
They may bring a new generation of ultra-fast charging electronics.
Fast Energy Storage can be used to quickly stabilize the power grid, absorb or release power into the system, and eliminate power fluctuations as demand rises and falls. Fast-
In theory, charging batteries can also help cars charge quickly, although he said it is impossible to charge such a large battery quickly today, because given today's power grid, the amount of electricity available to families will be limited.
Due to the limitations of today's energy storage, there may be more applications, including those that have not yet been thought.
Yingwu, a senior analyst at Lux Research, a technology consultancy, said that because the technology is based on existing types of batteries, it may enter the market faster than a new type of material. Fast-
"Charging" is one of the performance attributes needed for current vehicle applications ---
"All batteries that people develop for hybrid or electric vehicles usually need to be charged overnight," Wu said.
A faster charging method, she said, "will greatly increase the flexibility of these batteries.