Lithium batteries are divided into lithium batteries and lithium-ion batteries. Cell phones and laptops use lithium-ion batteries, commonly known as lithium batteries. Batteries generally use lithium-containing materials as electrodes and are representative of modern high-performance batteries. True lithium batteries are rarely used in daily electronic products due to their high risk.
Lithium-ion batteries were first developed by the Japanese company Sony Corporation in 1990. It integrates lithium ions into carbon (petroleum coke and graphite) to form a negative electrode ( traditional lithium batteries use lithium or lithium alloy as the negative electrode). Commonly used cathode materials are LixCoO2, LixNiO2 and LixMnO4. The electrolyte is LiPF6 + diethylene carbonate (EC) + dimethyl carbonate (DMC).
Petroleum coke and graphite are used as negative electrode materials, which are non-toxic and have sufficient resources. Lithium ions are integrated into carbon, which overcomes the high activity of lithium and solves the safety problems of traditional systems. Lithium batteries. The LixCoO2 positive electrode is charged and discharged. The performance and service life can reach a higher level, which reduces the cost. In short, the overall performance of lithium-ion batteries is improved. Lithium-ion batteries are expected to occupy a significant market in the 21st century.
The reaction formula when charging and discharging lithium-ion secondary batteries is LiCoO2+C=Li1-xCoO2+LixC[1]
When lithium batteries are discharged, the lithium atoms on the negative electrode will be broken down into electrons and lithium ions. The electrons reachent the positive electrode via the external circuit and the lithium ions reach the positive electrode via the separator. Lithium is a very active metal and cannot be retained in the negative electrode. If not retained, it will break down into lithium ions and electrons. The lithium battery is a rechargeable battery. This is
The principle and process of charging lithium battery
When charging, the lithium atoms on the positive electrode will decompose into lithium ions and electrons . The electrons reach the negative electrode via the exterior. circuit, and the lithium ions arrive through the negative electrode of the separator. At the negative electrode, lithium ions meet electrons, transforming lithium ions into lithium atoms.
The principle of charging and discharging lithium batteries is very simple. During charging and discharging, lithium ions move in different directionserent.
During discharge, the lithium atoms in the negative electrode will decompose into lithium ions and electrons. The electrons will reach the positive electrode along the external circuit, and the lithium ions will reach. the positive electrode through the separator.
Lithium ions form lithium atoms when they encounter electrons at the anode.
The opposite is true when loading. When charging, lithium ions move from the positive electrode to the negative electrode.
Lithium battery is a widely used battery. The batteries we usually use in mobile phones, tablets and laptops are all lithium batteries.
The batteries used in pure electric cars are also lithium batteries. Generally, pure electric vehicles use two types of batteries, uone is a ternary lithium battery and the other is an iron phosphate battery.lithium battery.
Lithium iron phosphate batteries are safer than ternary lithium batteries, but the energy density of ternary lithium batteries is higher than that of lithium iron phosphate batteries.
Pure electric family cars generally use ternary lithium batteries, and pure electric buses use lithium iron phosphate batteries.
Lithium iron phosphate batteries will only burn at 800℃, and ternary lithium batteries will start burning at 200℃.
Principles of charging and discharging lithium batteries
When lithium batteries are discharged, the lithium atoms on the negative electrode decompose into electrons and lithium ions. The electrons reach the positive electrode via the outer electrode. Circuit, and lithium ionsm reach the positive electrode through the separator.
Lithium is a very active metal that cannot be retained in the negative electrode. If it cannot be held, it will decompose into lithium ions and electrons.
The lithium battery is a rechargeable battery.
In fact, the principle of charging and discharging lithium batteries is very simple. The direction of movement of lithium ions is different during charging and discharging.
The structure of lithium battery is also very simple. This battery consists of a positive electrode, a negative electrode, a separator and an electrolyte.
The separator of a lithium battery lets lithium ions pass through, but not electrons.
During the charging process, the lithium atoms on the anode are broken down into electrons and lithium ions under the action of an external power source.e.
In this way, the lithium ions will move to the negative electrode via the separator and the electrons will move to the negative electrode via the external circuit.
When lithium ions arriving at the negative electrode encounter electrons, they form lithium atoms.
The negative electrode of lithium batteries is usually made of graphite because graphite has a multilayer structure that can accommodate lithium atoms.
There are many types of positive electrodes for lithium batteries, the most common are ternary lithium batteries and lithium iron phosphate batteries.
Lithium batteries commonly used in pure electric vehicles also include lithium iron phosphate batteries and ternary lithium batteries.
Lithium batteries are widely used in mobile phonesBiles, tablets, laptops, etc. The principle and process of charging lithium battery Charging and discharging principle of lithium battery @2019