Negative materials: Most of the graphite. New studies have found that titanate may be better materials. Negative reaction: lithium ion cut off during discharge, and insert lithium ion when charging. When charging: XLI + XE + 6C → lixc6 During discharge: lixc6 → xli + xe + 6c

　　It is generally divided into the following:

　　The first is carbon negative material: The negative electrode materials actually used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, middle phase carbon micro -ball, petroleum coke, carbon fiber, hot resin carbon, etc.

　　The second is tinyl negative material: tinyl negative materials can be divided into two types: tin oxides and tin -based composite oxides. Oxide refers to the oxides of various price metal tin. No commercial products.

　　The third is the negative material of lithium transition metal nitride, and there is no commercial product.

　　The fourth type is alloy negative materials: including tin -based alloy, silicon -based alloy, cymbal alloy, aluminum alloy, aluminum alloy, cymbal alloy alloy, magnesium -based alloy and other alloys, and there are no commercial products.

　　The fifth type is nano -level negative materials: nano -carbon tube and nano -alloy material.

　　The sixth type of nano -material is nano oxide material: According to the latest trends of market development in the lithium battery new energy industry in 2009, many companies have begun to use nano -titanium oxide and nano -silicon oxide In the carbon tube, the charge and discharge of lithium batteries is greatly increased.

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