Explain the characteristics of lithium batteries in detail

Lithium is the smallest and most active metal on the chemical periodic table. Because of its small size and high capacity density, it is widely welcomed by consumers and engineers. However, the chemical properties are too active, which brings extremely high risks. When lithium metal is exposed to the air, it will violently oxidize with oxygen and explode. In order to improve safety and voltage, scientists invented materials such as graphite and lithium cobalt oxide to store lithium atoms. The molecular structure of these materials forms a small nano-scale storage grid that can be used to store lithium atoms. In this way, even if the battery shell is broken and oxygen enters, the oxygen molecules are too large to enter these small storage cells, so that lithium atoms will not come into contact with oxygen and be wary of explosions. This principle of lithium battery enables people to achieve the goal of safety while obtaining its high capacity density. When a lithium battery is charged, the lithium atoms in the positive electrode lose electrons and are oxidized to lithium ions. Lithium ions swim to the negative electrode through the electrolyte, enter the storage cell of the negative electrode, and obtain an electron, which is reduced to lithium atoms. When discharging, the whole procedure is reversed. In order to guard against short-circuiting due to direct contact between the positive and negative electrodes of the battery, a diaphragm paper with many pores is added to the battery to guard against short-circuits. A good diaphragm paper can also automatically close the pores when the battery temperature is too high, so that lithium ions cannot pass through, so that they can use their own martial arts to prevent danger. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to maintain the lithium battery of mobile phones?