Phone Tech: Latest Battery News

Phone Tech: Latest Battery News

Smartphone Technology: Latest Battery that Can Triple Your Smartphone Battery Life

The battery barons of Stanford have done it again. Led by Yi Cui, the team has created the so called “Holy Grail” of the Li-Ion battery design.

To be more specific, they have finally discovered the way to create and develop a rugged lithium electrode that has the capability to increase the lithium-ion battery life up to four times.

The rugged lithium electrode can increase the battery life of your mobile phone for up to three times as well as reduce the cost and size of the electric cars battery pack.

Battery Capacity

The capacity of a lithium-ion battery is largely dictated by the amount of the lithium ions sucked into the anode while charging. Almost all lithium-ion batteries these days are made with graphite. This material is long lasting and relatively cheap and keeps its capacity over a hundred discharge and charge cycles.

However, the useful capacity of graphite is low. Lithium is currently the best anode material available. But, it can potentially explode when it comes into contact with electrolyte. If this issue can be rectified, the lithium-ion battery can have a higher capacity.

A New Approach with Nanotech

nanotubes stanfordYi Cui and his team at the Stanford University have found the newest approach to creating lithium anodes that could make the battery’s capacity more than 150 discharge and charge cycles and not explode. The battery barons of the Stanford University are responsible for a huge number of battery breakthroughs that people have come over.

Like the other battery breakthroughs, the nanotechnology is the key to develop the new lithium electrode. Lithium tends to expand dramatically when it has absorbed ions while charging. As it expands, cracks are created in the metal. The lithium ions can ooze out from these cracks and from dendrites or mossy metal deposits.

The dendrites can lower the lithium-ion battery efficiency that’s why it becomes useless after it has reached its maximum charge/discharge cycle.
Stanford battery barons have placed a layer of carbon nanosphere on the surface of the lithium anode.

The layer of carbon nanosphere can prevent the cracks on the metal and avoid dendrites from forming. These nanospheres can create a series of interconnected domes strong enough to keep the structural integrity of the lithium-ion battery. This also allows the ions carrying electricity to pass back and forth into the anode.

To be more specific, the layer or carbon nanosphere is a protective layer about 20 millimeters thick. This prevents the battery from reacting explosively with electrolytes.

More Efficient Batteries

The Stanford lithium-ion battery can have 99% coulombic efficiency even after 150 charge/discharge cycles.

Yi Cui was quoted as saying that this is short for the 99.9% required for a commercial viable design. And although they are not at 99.9% threshold yet, they are very close to it.  By making significant improvements to their previous designs they are certainly getting there with both new electrolytes and additional engineering,

The Cui team can realize a lithium-ion battery design that can power Smartphones three to four times longer than the current Li-ion batteries available today.
The new lithium anode not only powers smartphone and electrical vehicles up to four times, but also creates a small, compact battery.