'shuttlecock' battery the key to lightweight portables - 3.7 volt lithium ion battery

The world's first rechargeable battery made entirely of lightweight solid materials was launched in London this week.
The battery is designed to power portable devices such as camcorders, laptops and mobile phones, including light lithium-
The exact composition of a solid polymer electrolyte is a tight secret.
The battery cannot leak any gas or liquid because it is completely solid, which makes it very safe.
Ultralife Batteries, the US company that developed it, said the security factor gave the company an advantage over Japanese companies, including Sony, Sanyo and Panasonic, which all introduced rechargeable lithium-ion Batteries
A battery containing a liquid electrolyte.
Lithium-based batteries have attracted much attention due to their lightweight and efficient storage capabilities.
Yuasa, Japan and Danionics, Denmark are developing their own solid rechargeable devices.
This battery was developed using the expertise of Dowty battery in Abingdon, UK, which was the Ultralife battery purchased last year.
Researchers from both sides of the Atlantic joined forces to develop the technology.
Since it is lithium based, the solid battery stores more power weightfor-
Weight than traditional nickel
Rechargeable batteries with cadmium.
"For two batteries of the same weight, our battery life is three times that of the original . "
President, rechargeable product development, Ultralife.
The simple structure of the solid battery also means that it can be shaped to fit any device.
Ultralife, for example, developed a prototype with a thickness of only a small part of MM, but covered an area of A4 paper size.
The other version is the size of the credit card. Single four-
It is also possible to stack and seal the Volt battery to form a unit in the shape of a small matchbox.
This new battery is called a "rocking chair" or a "shutt ball" battery because it relies on the lithium ion that comes back to pass when charging and discharging.
When the battery is discharged, the lithium ion moves from where it is stored in a flat carbon anode.
These ions pass through a layer of polymer electrolyte and combine with the cathode material on the other side to form lithium manganese oxide.
The metal mesh at the top and bottom of the battery acts as a current collector.
This process is the opposite when the battery is charged.
To keep moisture, the battery is sealed in laminated aluminum foil.
Previous limit for charging and discharging lithium ion batteries
According to Newnham, the anode-based cycle is 200 times.
He said that Ultralife's new battery can be charged more than 1000 times with only a small loss of capacity.
"The secret is that when you move the lithium ion, you don't destroy the physical structure of the anode or cathode," Newnham said . ".
"If you do this, it means [next time]
You can't get that much lithium, so you lose the capacity.
"But the core of the battery is the plastic electrolyte, made by mixing lithium salt, polymer and plasticizer into a rubber mixture.
The electrolyte must perform two conflicting functions.
"It has to be an electronic insulator in order to separate the electrodes, prevent the battery from short-circuiting, and have to conduct lithium ion," Newnham said . ".
Ultralife is building a & dollar;
Located near the headquarters of Newark, New York, 20 million production plants.
It is also planned to build a factory in Europe.
Later this year, Ultralife will begin offering the first commercial battery to an unnamed multinational communications company designed for mobile phones.
Newnham says the price is about a dollar when new batteries are produced in large quantities; 1 per watt-
Hours-same energy price as Nickel
Rechargeable batteries with cadmium.
He expects the device to weaken other lithium.
Batteries containing relatively expensive cathode materials such as lithium cobalt or nickel oxide.
The lithium manganese oxide cathode material of Ultralife is much cheaper.
Although Ultralife Batteries are designed for portable consumer devices, the motor industry has developed a strong interest in lithium battery technology, which may be used in electric vehicles.
American automakers Ford, General Motors and Chrysler are all working with the US government in their own dollars; 1.
5 billion lithium battery development plan (see Diagram).