You can find them in laptopsPDAscell phones and iPods.
View gallery - 4 images The high energy capacity of lithium-ion batteries has led to them powering everything from tiny mobile devices to huge trucks.
But current lithium-ion battery technology is nearing its limits and the search is on for a better lithium battery. But one thing stands in the way: If a new technology by Rice University scientists lives up to its potential, it could solve this problem and enable lithium-metal batteries that can hold three times the energy of lithium-ion ones.
Dendrites are microscopic lithium fibers that form on the anodes during the charging process, spreading like a rash till they reach the other electrode and causing the battery to short circuit. As companies such as Samsung know only too well, this can cause the battery to catch fire or even explode.
Your cellphone's battery won't last any longer until new technology comes along. This explains why there's been no shortage of attempts to solve this problem, from using Kevlar to slow down dendrite growth to creating a new electrolyte that could lead to the development of an anode-free cell.
So how does this new technology from Rice University compare? For a start, it's able to stop dendrite growth in its tracks. Key to it is a unique anode made from a material that was first created at the university five years ago.
By using a covalent bond structureit combines a two-dimensional graphene sheet and carbon nanotubes to form a seamless three-dimensional structure. As Tour explained back when the material was first unveiled: That means electrons see no difference, because it's all one seamless material.
At that moment, we knew we had found something special. To test the anode, the researchers built full battery prototypes with sulfur-based cathodes that retained 80 percent capacity after more than charge-discharge cycles i.
No signs of dendrites were observed on the anodes. How it works The low density and high surface area of the nanotube forest allow the lithium metal to coat the carbon hybrid material evenly when the battery is charged. And since there is plenty of space for the particles to slip in and out during the charge and discharge cycle, they end up being evenly distributed and this stops the growth of dendrites altogether.
According to the study, the anode material is capable of a lithium storage capacity of 3, milliamp hours per gram, which is close to pure lithium's theoretical maximum of 3, milliamp hours per gram, and 10 times that of lithium-ion batteries.
And since the nanotube carpet has a low density, this means it's able to coat all the way down to substrate and maximize use of the available volume. We're producing these full batteries, cathode plus anode, on a pilot scale, and they're being tested.Lithium-ion batteries are the current industry standard of battery technology, in terms of storage capacity and lifetime.
Increased use is reflected in the quickly climbing price of lithium. With no alternative available for widespread use and commercialization, demand is only expected to grow.
NEI Corporation is a leading developer and manufacturer of Lithium-ion battery materials and supplies cathode, anode, and electrolyte materials for use in lithium-ion batteries.
We produce battery materials through our scalable and economical solid state synthesis process, which is adaptable to different materials compositions and particle morphologies. Now John Goodenough, the year-old father of the lithium-ion battery, is claiming a novel solution as a blockbuster advance.
If it proves out, the invention could allow electric cars to compete. Access to over , complete essays and term papers; The battery has helped in the growth of technology, and has become a big innovation toward modern living because of it..
since our batteries last 10 times longer than the current generation of lithium-ion batteries. Because the key ingredient, titanium dioxide, is both abundant. Mar 11, · I'm currently in the works of experimenting and writing up my Extended Essay on Chemistry for the IB (it is basically a very long lab report).
I have chosen to do the sub-topic of electrochemistry, within which I am interested to do something on the Lithium-ion battery. The reason lithium-ion is used instead of lithium metal is that lithium metal is highly unstable when used in the batteries discharge and recharge cycles, making it very unsafe for conventional use.
Therefore, this battery is a non-metallic battery.