What is the power wall battery made of? The wall mounted battery is composed of lithium battery, so we should understand what is a lithium battery? What are the main raw materials?
Lithium battery refers to the battery containing lithium (including metal lithium, lithium alloy, lithium ion and lithium polymer) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are usually non rechargeable and contain metallic lithium. Lithium ion batteries do not contain metallic lithium and can be recharged. The power wall battery we are talking about today belongs to the rechargeable type.
Lithium batteries usually fall into two categories:
Lithium metal battery: Lithium metal battery generally uses manganese dioxide as the cathode material, metal lithium or its alloy metal as the cathode material, and uses non-aqueous electrolyte solution.
Lithium ion battery: Lithium ion battery generally uses lithium alloy metal oxide as cathode material, graphite as cathode material and non-aqueous electrolyte.
Although the energy density of lithium metal battery is high, theoretically it can reach 3860W/kg. However, due to its unstable nature and inability to charge, it cannot be used as a power battery for repeated use. The lithium-ion battery has been developed as a main power battery due to its ability to recharge repeatedly. However, because of the different elements, the performance of the cathode materials is very different in all aspects, which leads to more disputes on the cathode material route in the industry.
Usually, the power batteries we talk about most are lithium iron phosphate batteries, lithium manganate batteries, lithium cobalate batteries and ternary lithium batteries (ternary nickel cobalt manganese)
The cathode materials of lithium batteries are generally divided into the following categories:
The first is carbon cathode material:
At present, the anode materials that have been actually used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolytic resin carbon, etc.
The second is tin based anode material:
Tin based anode materials can be divided into tin oxide and tin based composite oxide. Oxide refers to the oxide of various valence metal tin. There are no commercial products at present.
The third is lithium containing transition metal nitride cathode material, and there is no commercial product at present.
The fourth is alloy anode materials:
Including tin based alloys, silicon based alloys, germanium based alloys, aluminum based alloys, antimony based alloys, magnesium based alloys and other alloys, there are no commercial products at present.
The fifth is nano anode materials: carbon nanotubes, nano alloy materials.
The sixth kind of nano material is nano oxide material: At present, according to the latest market development trend of the new energy industry of lithium battery in 2009, Hefei Xiangzheng Chemical Technology Co., Ltd. has started to use nano titanium oxide and nano silicon oxide to add in the traditional graphite, tin oxide and carbon nanotube, greatly improving the charge discharge capacity and charge discharge times of lithium Battery Wall
Technological process is an important indicator to measure whether an enterprise is progressiveness, competitive in the market and able to keep ahead of competitors. With the rapid development of the lithium battery material market in China, the application and research and development of related core production technologies will become the focus of the industry enterprises. Understanding the R&D trend, process equipment, technology application and trend of core technologies for lithium battery material production is crucial for enterprises to improve product technical specifications and market competitiveness