Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metal lithium, and can be charged. Lithium battery is the abbreviation of lithium ion batteries. It is currently a new type of energy storage battery and is gradually replacing traditional lead -acid batteries.

　　Common in daily life is mainly mobile phone batteries, electric vehicles and trams, electric tool batteries.

　　1 From the appearance division: cylindrical, square shape

　　2 From the shell material division: steel shell, aluminum shell, plastic shell, aluminum plastic film (soft bag)

　　3 From energy density division: capacity type, power type

　　4 Division from electrolyte: liquid lithium ion battery, solid lithium ion battery (polymer)

　　5 From the orthopedic materials: lithium cobaltate (C), lithium manganate (m), ternary lithium (n), lithium phosphate (F)

　　It is a cylindrical 18650 battery in routine, which is a cylindrical battery with a diameter of 65 mm in diameter.

　　With the widespread use of digital products such as mobile phones, laptops and other products, lithium -ion batteries are widely used in such products with excellent performance, and are gradually developing into other products applications. In 1998, Tianjin Power Research Institute began to commercialize lithium -ion batteries. In terms of habits, people also call lithium ion batteries as lithium batteries, but these two batteries are different. Lithium ion batteries have become mainstream.

　　According to the above introduction, lithium batteries are a class of batteries that are lithium metal or lithium alloy as negative electrode materials and use non -hydrolytic solutions. Because the chemical characteristics of lithium metal are very lively, the processing, preservation and use of lithium metal are very high. Therefore, lithium batteries have not been applied for a long time. With the development of science and technology, lithium batteries have now become the mainstream

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