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What are the main components of lithium battery materials? Four main materials of lithium battery are briefly introduced

February 4, 2023

Lithium battery is a kind of battery composed of lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution. Because of the chemical characteristics of lithium metal are very active, making the processing, preservation and use of lithium metal, the environmental requirements are very high. With the development of science and technology, lithium battery has become the mainstream.

1. What are the main components of lithium battery materials

Carbon anode materials: the actual anode materials used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, intermediate phase carbon microspheres, petroleum coke, carbon fiber, pyrolysis resin carbon, etc.

Tin-based cathode materials: Tin-based cathode materials can be divided into tin oxide and tin-based composite oxide. Oxide refers to the oxide of various valent metal tin. There are no commercial products available.

Nitrides: No commercial product.

Alloy category: including tin-based alloy, silicon-based alloy, germanium-based alloy, aluminum-based alloy, antimony-based alloy, magnesium-based alloy and other alloys, and there are no commercial products.

Nanoscale: nano-carbon tubes, nano-alloy materials.

Nanooxide: According to the latest market developments in the lithium battery new energy industry in 2009, many companies have begun to use nano titanium oxide and nano silicon oxide to add to the previously traditional graphite, tin oxide, nano carbon tubes, greatly improving the charge and discharge volume and charge and discharge times of lithium batteries.

2. Four main materials for lithium batteries

Lithium battery material composition mainly includes cathode material, cathode material, diaphragm and electrolyte.

1, cathode materials: among the lithium cathode materials, the most commonly used materials are lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate and ternary materials (polymer of nickel cobalt manganese).

2, cathode materials: among the cathode materials, the current lithium battery cathode materials are mainly natural graphite and artificial graphite. The anode materials being explored are nitrides, PAS, tin-based oxides, tin alloys, nanoanode materials, and some other intermetallic compounds.

3, diaphragm: market diaphragm materials are mainly polyethylene (polyethylene, PE), polypropylene (polypropylene, PP) based polyolefin (Polyolefin) diaphragm. In the structure of lithium battery, the diaphragm is one of the key inner layer components.

4. Electrolyte: the electrolyte is composed of high purity organic solvent, electrolyte lithium salt, necessary additives and other raw materials, under certain conditions, according to a certain proportion.

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