New energy vehicle battery silicon material and graphite material are better?

New energy vehicle battery silicon material or graphite material, which is better? The successful pre-sale of Tesla model 3 has redirected people’s attention to new energy vehicles, and the significance of the lithium battery business lies in the power lithium-ion batteries they use New information. According to analysis, Model3 battery uses silicon carbon anode with energy density of 300wh/kg and cruising range of about 346km. The increase in battery life is due to the fact that the specific capacity of the silicon data is much greater than that of the graphite data, and the specific capacity value directly reflects the unit weight of the battery. New energy vehicle battery silicon data or graphite data, which is better? The theoretical gram capacity of the graphite cathode data currently used on the market is 372mAh/g, and the theoretical gram capacity of the silicon-carbon composite data is about 4200mAh/g, which is of graphite cathode. More than 10 times. The high capacity of silicon-carbon cathode data can fully meet the energy requirements of pure-power automotive lithium-ion batteries, but the charging and discharging process of silicon-based lithium batteries has a huge data volume expansion effect, which is difficult to industrialize. The application of silicon carbon anode in Model 3 battery is an important breakthrough in the industrialization of silicon carbon anode data. According to analysis, 10% silicon is added to the negative electrode data, and the energy density reaches 300wh/kg. With the advancement of technology, the silicon-carbon negative electrode data is expected to further increase the capacity of the lithium battery. Inorganic silicon data (silicon or silicon oxide used in the negative electrode) has made a significant contribution to the capacity of lithium batteries, so another important member of the silicon data, functional silicon data, can it also help the battery life of new energy vehicles? The important chain structure is the silicon-oxygen bond. The side chain is connected to other organic groups through silicon atoms. The bond energy of the si-o bond in organosilicon is much higher than that of the c-c bond, so the thermal stability of the organosilicon product is high, and the chemical bonds of the molecules will not be broken or differentiated under high temperature (or radiation exposure). It can withstand high and low temperatures and can be used in a variety of temperatures. The main chain has no double bonds and is not easily distinguished by ultraviolet rays and ozone. The special composition and molecular structure make organosilicon integrate the functions of organic and inorganic substances, and have excellent temperature resistance, weather resistance, electrical insulation, and biocompatibility. Silicone resin materials have been widely used in civil fields such as construction, electronics, electrical, and chemical industries, and even have a large number of applications in aviation, precision technology, military technology and other sectors. For example, it can be used in outer space under extreme conditions, or extreme cold and heat in Siberia or the Sahara. Temperature control The carbonate in the electrolyte of a lithium battery has a higher melting point. Generally, when the temperature is lower than -20°C, the battery cannot work normally. When the temperature is too high, the battery gap will melt to form a short circuit, causing safety problems such as battery fire. As long as you keep at the right temperature, the battery can achieve its best function. Dow Corning's customized silicone can effectively dissipate heat for battery packs and batteries, and increase the battery's operating temperature. Together, the distributed flow silicone forms a thermal shield around the battery, allowing the battery to continue to operate effectively when the environment is too cold or too hot. New energy vehicle battery silicon data or graphite data, which is better? Durability In the daily use of new energy vehicles, moisture will cause the HF differentiation of lithium hexafluorophosphate in the battery. Vibration may cause rupture of the tabs and short-circuit of the battery. Common factors may affect battery life. To this end, Dow Corning provides customized silicone solutions for battery packs to protect the durability of the battery. New energy vehicle battery silicon data or graphite data, which is better? Another aspect of the battle of insulated electric vehicle batteries is short-circuit and over-current. The insulation of organic silicon is a good answer. The use of organic silicon in the battery can well maintain the internal key electronic devices, batteries and busbars, and prevent the danger of power surges and battery fires. New energy vehicle battery silicon data or graphite data, which is better? As the power source of new energy vehicles, the battery's positive data, negative data, gap, electrolyte and other raw data affect its functions. Statement: Articles published on this site Some pictures and content are from the Internet. If there is any infringement, please contact to delete the previous one: Comparison of advantages and disadvantages of lithium batteries, fuel power batteries, and super capacitors