Introduction of cobalt acid lithium batteries with iron oxide lithium ion batteries

Source: 2020 - 03 - 23 15:07 hits: lithium cobalt oxide battery and lithium ion iron oxide battery according to foreign reports, recently, the argonne national laboratory ( 阿贡国家实验室,简称argonnenationalaboratory) Scientific research personnel and northwestern university wolverton cooperation ( natural) , has been developed by iron oxide, lithium rechargeable batteries ( li - 离子氧化铁,rechargeablelithium - 铁- oxidebattery) 。 With normal lithium cobalt oxide battery ( Lithium cobalt oxide battery rechargeable batteries, lithium cobalt oxide) Compared to its larger lithium ion movement, because of its large capacity, extending the electric car battery life. Discuss the energy frontier research center for the U. S. department of energy ( EnergyFrontierResearchCenter) Support the project, and publish their findings to the 'natural energy ( NatureEnergy) , 'Dr Wolverton postdoctoral research lab members ChunZhan ZhenpengYao discuss the authors of the paper (top and argonne laboratory firstauthors) 。 Wolverton and yao was calculated, and the argonne laboratory as experimental part of the study. In the process of charging and discharging, lithium ion moves back and forth between the positive and negative. When batteries, lithium ion back to anode and are stored in there. The cathode is composed of lithium ion, transition metal and oxygen compounds. In general, the transition metal is cobalt, lithium ion from the positive to the negative moves back and forth, it can store and release current effectively. Cathode capacitance restricted by the number of electrons in the transition metals, transition metal will participate in chemical reactions in the battery. Lithium cobalt oxide battery has been listed for 20 years, but after a long discussion, the researchers found a cheaper, more powerful rechargeable battery. Wolverton team first adopted two new strategies to improve the performance of ordinary lithium cobalt battery: use for cobalt, iron and forced oxygen into the chemical reaction. Ability to store oxygen and release the power of natural will increase the power of the battery, make it more lithium ion storage and use. Other research team also did the same thing, but rarely succeed. Through numerical calculation, wolverton and yao found a new formula of the reversible chemical reaction. First of all, the team with iron instead of cobalt, iron is the cheapest metal on the periodic table. Then, through calculating, they found the lithium ions, iron ions and oxygen ion the right balance, so that they can not cause under the condition of oxygen evolution at the same time to drive a reversible reaction. More importantly, will start from four lithium ion batteries, instead of one, to increase its capacity. Iron and oxygen react will drive the battery, allowing four lithium ion moves back and forth between the positive and negative.