In the early July 2017, a “sodium battery company Aquionnergy is a disaster that lithium-ion battery? “The article pushed the sodium ion battery to people in the field of vision. It is not difficult to find that the research and development of sodium ion batteries in recent months has entered the intensive period, although there is no commercialization, the sodium ion battery is undoubtedly become the “rear show” of the lithium-ion battery..
At present, the battery importance in the field of electric vehicles, energy storage and consumer electronics, especially in the rapid development of electric vehicles and energy storage industries in recent years, battery, especially lithium-ion batteries, more demand, and lithium-ion batteries are gradually exposed. Partial limitations: First, the problem of insufficient lithium resources; the second is the problem of resource recycling. The emergence of these realities, injects the company, the industry chooses a more reserved, cheaper battery system.
In constant search, the sodium ion battery system is increasingly affected by the industry.. Professor Kyeongjaecho, Kyeongjaecho, Material Science and Technology and Engineering, a Material Technology, and Engineering College, Dallas, Texas, said: “The price of lithium is relatively expensive, mineral resources are limited, only a few lithium mines worldwide.
But sodium does not have insufficient minerals, it can be extracted from seawater. “Xiong Jianhui, Associate Professor, Environmental College, South China University of Technology, said that the working principle of sodium ion battery and the lithium-ion battery are similar, and the ions are used to perform charging and discharge..
However, the former is lower and cost is lower than the sodium resources, and because of its high voltage platform, the safety is higher.. Finding the right electrode material has always been the key to the development of sodium ion batteries.
Recently, sodium ion battery negative electrode materials have been broken. Xiong Xianhui and the University of Georgia Institute of Technology Materials Science and Engineering, Liu Meilin, etc. have been continuously studied, and mixed through commercial sulfur and oxide oxide and sodium solution, and then prepared modified graphene and nanowulfide by controlling crystallization and sintering.
Composite. A semi-battery being filled with the material and sodium sheets, the capacity retention ratio is as high as 83% after the rapid charge and discharge (completion of 40 minutes of charge and discharge)..
It is understood that the composite material has a good cycle performance, so that the sodium ion battery is applied to a big step.. In addition to the negative electrode material, the positive material is also an important battlefield for sodium ion batteries.
. Recently, under the support of the National Natural Science Foundation of my country, the National Science and Technology Department and the Chinese Academy of Sciences, the researcher of the Molecular Nanostructure and Nanotechnology Key Laboratory of Nanotechnology, the researcher of the National Institute of Chemistry, and combined with the experiment and broke through the theory of material dynamics. Single metal ion positive limit, combined with a variety of metal ion advantages, O3-NaFe0.
45CO0.5Mg0.05O2 positive electrode material excellent in comprehensive performance.
It is understood that the method significantly enhances the material exposure to air or even soaking in the air, soaking in the water, reducing the storage cost of the material, promoting its practical application, designed high-performance sodium tonic material, and Material structure optimization supply guidance. The positive and negative material is constantly coming to Jiaxun, then where is the future target market for sodium ion batteries? Hu Yongsheng, a researcher of the Physics of my country, said that the future sodium ion battery can gradually replace lead-acid batteries, and has been widely used in various low-speed electric vehicles, and complement each other with lithium-ion batteries..
At present, the vast majority of electric bicycles, electric tricycles, and even older bi-acid batteries, but due to the refinement of lead-acid battery recovery channels, system, etc., environmental pollution is more serious..
Although the lithium-ion battery can replace the lead-acid battery, the reserves of lithium resources, the sodium ion battery cost is lower, and Hu Yong will target the target market of sodium ion batteries to the low-speed electric vehicle market.. He also said that the sodium ion battery will also be large in the storage capacity.
. With the development and research of sodium ion batteries, a number of companies began to lay out of sodium ion batteries and sodium cell energy, and the superworked group is one of them..
At the beginning of 2017, the Superwell Group and the American General Electric Company (“GE”) were organized in Zhejiang Changxing held a Durathon sodium salt battery joint venture project signing ceremony.. The two sides combine their respective industries, technical advantages, and jointly create joint ventures and expand the application field of sodium salt batteries.
. After years of development, DURATHON sodium salt battery technology has realized commercialization. It has the characteristics of stable product nature, high safety (not burning or exploding), large energy density, long service life.
. At present, GE has built 50,000 energy storage projects such as solar energy, wind power combinations, peak management, communication base station and other energy storage projects..
In addition to the Chaowei Group, the China Poly Battery Research Institute was published in 2015, the world’s first sodium ion battery energy storage system prototype. Large foundation for industrialization of domestic storage sodium ion batteries. Although the sodium ion battery is still required, many companies and research units are in sustained development.
. At the same time, the sodium ion battery application faces a problem, although the cost is low, the energy density of sodium is 20% lower than lithium..
If there is a breakthrough in this area, its application will also be restricted.