Types of anode materials for lithium batteries

The important materials of lithium batteries include electrolytes, separators, cathode materials, etc. Since the performance of the cathode material directly affects the performance of the lithium battery, its cost directly determines the cost of the battery, so the cathode material accounts for a large proportion (the cathode material and the anode material The mass ratio is 3:1-4:1). Lithium battery is a two-stage battery system composed of two kinds of lithium intercalation compounds, which are respectively used for positive and negative sequence insertion and removal of lithium ions. During the charging process, lithium ions are removed from the lattice constant of the positive electrode material, and inserted into the lattice constant of the negative electrode material after the electrolyte, so that the negative electrode is rich in lithium, and the lithium content in the positive electrode is low. During the discharge process, lithium ions are removed from the crystal lattice of the positive electrode material and inserted into the lattice constant of the positive electrode material after the electrolyte, so that the lithium content in the positive phase is extremely high, and the lithium content in the negative electrode is reduced. During the insertion and removal of lithium ions, the potential difference between the positive and negative materials relative to the lithium metal is the operating voltage of the battery. First of all, carbon anode materials: At present, the anode materials of lithium batteries are mainly carbon materials, such as artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolytic resin carbon, etc. The second type is tin-based anode materials: tin-based anode materials can be divided into tin oxide and tin-based composite nitrogen compounds. Nitrogen compounds refer to nitrogen compounds of various metals in tin. There are no commercial products. The third is a lithium-containing transition element nitrogen compound anode material, and there are currently no commercial products. The fourth type is alloy anode materials: including tin-based alloys, silicon-based alloys, bismuth-based alloys, aluminum-based alloys, bismuth-based alloys, magnesium alloys, etc. There are currently no commercial products. The fifth type is nano-scale anode materials: carbon nanotubes, nano-alloy materials. The sixth nano material is nano oxide material: At present, Hefei Xiangzheng Chemical Technology Co., Ltd. has the latest development trend of the lithium battery energy saving and environmental protection industry in 2009. Many companies have begun to use nano-silica and nano-titanium dioxide to add traditional graphite, nickel oxide, and two-dimensional materials to greatly increase the charge and discharge capacity and discharge times of lithium batteries. Features: The microwave drying equipment for lithium battery anode materials is fast and fast, and deep drying can be completed within a few minutes. The final water content can reach more than 1/1000. The lithium cathode material is microwave-dried evenly. The product has good dry quality. Microwave drying of cathode materials for lithium batteries is highly efficient, energy-saving, safe and environmentally friendly. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the scope of use of lithium iron phosphate power lithium ion batteries