Analysis on the Composition Classification and Industrial Chain of Lithium Battery

Composition of lithium-ion batteries

Lithium-ion batteries are secondary chemical batteries(rechargeable chemical batteries) whose positive and negative poles consist of two different substances that can be reversibly embedded and degenerated of lithium ions. During the charging process, lithium ions are removed from the positive electrode and embedded into the negative lattice of the electrolyte, so that the positive electrode is in a high-potential lithium-poor state, and the negative electrode is in a low-potential lithium-rich state; In contrast, discharge is characterized by high voltage, high specific energy, high specific power, long cycle life, small self-discharge, no memory effect, and environmental friendliness. It is currently the most suitable energy storage technology for the development of new energy applications.

II. Main Classification of Lithium-ion Batteries

There are many types of lithium batteries. According to the different cathode materials, they can be divided into lithium ferrate batteries, lithium cobalt acid batteries, lithium manganese batteries, lithium nickel acid batteries, lithium trioxide batteries, and lithium iron phosphate batteries. According to different electrolyte materials, it can be divided into liquid lithium batteries and solid polymer lithium batteries; In terms of packaging, it can be divided into soft packaging, steel shell packaging, aluminum shell packaging, etc.; In terms of use, it can be divided into dynamic lithium batteries, consumer lithium batteries, and energy storage lithium batteries.

III. Lithium-ion battery industry chain

The upper reaches of lithium batteries include positive electrode materials, negative electrode materials, electrolytes, diaphragm, etc.. The middle reaches are lithium battery manufacturers, including BMS, etc.. The lower reaches are mainly lithium electric supporting applications. Currently, they are widely used in consumer batteries, power batteries, and energy storage batteries..

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