Sony Hoping to Boost Battery Capacity By 40%
Sony is looking at sulfur to help improve the performance of rechargeable batteries. Sony says using sulfur as an electrode material can increase the energy density from today's limit of 700Wh/L to 1,000Wh/L. This boost would give a lithium-sulfur battery 40% more capacity when compared to a lithium-ion battery of the same volume. Sony would use sulfur for the positive electrode and lithium for the negative electrode. Sulfur has low voltage, but much greater capacity potential. The company is also investigating magnesium-sulfur batteries. Sony hopes to commercialize the Li-S batteries in smartphones by 2020.
Hands On with the Sony Xperia XA2 and XA2 Ultra
Sony debuted several new smartphones at CES this week in Las Vegas, including the Xperia XA2, XA2 Ultra, and L2. The XA2 and XA2 Ultra share nearly every feature other than screen size and battery capacity.
Scientists Cook Up Quick-Charging Aluminum Battery
Aluminum-ion batteries may replace lithium-ion batteries in mobile devices thanks to a breakthrough made by U.S. researchers.
Samsung Says Graphene Balls Help Batteries Charge Quicker
Samsung researchers believe graphene balls can make significant improvements to lithium ion batteries. The nano coating delivers a number of benefits.
MIT Spinout Claims to Double Battery Life
A company called SolidEnergy Systems, a spinout from MIT, says it has new battery technology that will double the life of lithium-based power cells. The breakthrough involves a battery that replaces the traditional graphite anode with a thin, lithium-metal foil.
Samsung Researchers Make Battery Breakthrough
A research team working at Samsung has discovered a new way to make lithium-ion batteries that could double the available battery life in devices such as smartphones. The method involves covering silicon nanoparticles with graphene, which prevents the formation of silicon carbide.