Future batteries could have twice or even three times the power capacity of today’s standard lithium-ion batteries, according to new research released this week. For the average user, this means that the smartphone can last for several days. More importantly, it does not sacrifice battery life, is bulky and shrinks further.
The team from the University of Texas at Austin found that several metal oxides have physical energy storage beyond theoretical limits. Currently, the standard method for battery energy storage is to allow lithium ions to move through the material or to convert the crystal structure of the material.
With these metal oxides, energy can be stored neither in the transition metal oxides nor in the reduced metal nanoparticle surface formed during the discharge of the transition metal oxide LIBs low-level.
In an interview with SciTech Daily, Guihua Yu, an associate professor at the University’s Walker School of Engineering’s Walker School of Mechanical Engineering, said: “This important result is that physicists often use technology that is rarely used in the battery world. This is the perfect demonstration of the beautiful combination of physics and electrochemistry. “
Yu points out that the method is in-place magnetic measurement. This is the most basic real-time magnetic monitoring system. Through this system, the magnetic changes in the internal electronic structure of the monitored material help to quantify the charge capacity of the material. The study shows that the charge capacity of some material surfaces is the main source of battery capacity exceeding the standard. This additional surface capacitor is present in Fe₃O₄ NiO, FeF₂ and Fe₂N systems.
Paper: Extra storage capacity in transition metal oxide lithium-ion batteries revealed by in situ magnetometry.