26650

Lithium batteries are classified into lithium batteries and lithium-ion batteries. Both mobile phones and laptops use lithium-ion batteries, which are commonly referred to as lithium batteries. The battery like 26650 lifepo4 battery generally uses a lithium-containing material as an electrode and is representative of modern high-performance batteries. True lithium batteries are rarely used in everyday electronics because of their high risk.
The lithium-ion battery was first developed by Sony Corporation of Japan in 1990. It is to insert lithium ions into carbon, petroleum coke and graphite to form a negative electrode, lithium for lithium batteries or lithium alloys for conventional lithium batteries. The positive electrode material is commonly used for LixCoO2, LixNiO2, and LixMnO4, and LiPF6 plus diethylene carbonate (EC) and dimethyl carbonate (DMC) for the electrolyte.
Petroleum coke and graphite as non-toxic materials are non-toxic and have sufficient resources. Lithium ions are embedded in carbon, which overcomes the high activity of lithium and solves the safety problems of traditional lithium batteries like 26650 lifepo4 battery. The positive LixCoO2 can reach the charge and discharge performance and life. The higher the level, the lower the cost, and the overall performance of the lithium-ion battery is improved. It is expected that lithium-ion batteries will occupy a large market in the 21st century.
Lithium-ion batteries like 26650 lifepo4 battery use a carbon material as the negative electrode and a lithium-containing compound as the positive electrode. There is no metal lithium, only lithium ions. A lithium-ion battery like 26650 lifepo4 battery is a general term for a battery in which a lithium-ion intercalation compound is used as a positive electrode material. The charging and discharging process of a lithium-ion battery is a process of intercalating and deintercalating lithium ions. In the process of intercalation and deintercalation of lithium ions, concomitant insertion and deintercalation of equivalent electrons with lithium ions, commonly referred to as embedding or deintercalation of the positive electrode and insertion or deintercalation of the negative electrode). During charge and discharge, lithium ions are intercalated/deintercalated and inserted/deintercalated between the positive and negative electrodes, and are aptly referred to as rocking chair batteries.
When the 26650 lifepo4 battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. Carbon as the negative electrode has a layered structure, and it has many micropores. Lithium ions reaching the negative electrode are embedded in the micropores of the carbon layer, and the more lithium ions are embedded, the higher the charging capacity. Similarly, when the battery is discharged, ie, the process we use the battery, the lithium ions embedded in the carbon layer of the negative electrode come out and move back to the positive electrode. The more lithium ions return to the positive electrode, the higher the discharge capacity.
Generally, the charging current of the lithium battery is set between 0.2℃ and 1℃. The larger the current, the faster the charging and the greater the heat of the battery. Moreover, excessive current charging will render less capacity, because the electrochemical reaction inside the battery takes time. Just like pouring beer, if it is too fast, it will produce bubbles, but it will not be full.

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