Composition and working principle of lithium battery

Lithium-ion batteryis a rechargeable secondary battery, mainly composed of five main parts: initial, continuous, continuous, twisted, AC and current collector.

The main function of the positive and negative electrode materials is to allow lithium ions to be extracted/intercalated more freely, so as to realize the charge and discharge function.

During the charging process, lithium ions are extracted from the positive electrode material and inserted into the corresponding negative electrode material through the electrolyte. At the same time, electrons flow out from the positive electrode through the external circuit and flow to the negative electrode; when the lithium battery is discharged, lithium ions are extracted from the negative electrode and re-embedded through the electrolyte. For the positive electrode material, electrons flow from the negative electrode to the positive electrode through an external circuit.

What is the anode material of lithium battery?

The negative electrode material is the carrier of lithium ions and electrons in the battery charging process, and plays the role of energy storage and release. It is one of the key factors that determine the performance of lithium-ion batteries, and holds the lifeblood of power battery safety.

The ideal negative electrode material must have at least the following 7 conditions

1. The chemical potential is low, forming a large potential difference with the cathode material, so as to obtain a high-power battery;

2. It should have a higher specific cycle capacity;

3. Li+ should be easy to insert and extract in the negative electrode material, and the Coulombic efficiency is high, so that there is a more stable charge and discharge voltage during the extraction of Li+;

4. It has good electronic conductivity and ion conductivity;

5. Good stability and certain compatibility with electrolyte;

6. The source of materials should be rich in resources, low in price, and simple in production technology;

7. Safe, green and pollution-free.

Anode materials that meet the above conditions basically do not exist at present, so the research on new anode materials with high energy density, good safety performance, low price, and easily available materials has become an urgent task and is also a hot spot of current research. Lithium battery research field at this stage.

What is the ideal anode material?

First of all, it has a low discharge platform, so that a variety of cathode materials can cooperate with it to form a secondary battery with a high discharge voltage. This situation shuts out many materials.

Secondly, the material has more porous structure and can hold lithium ions. The smaller the molecular weight of the material, the better. This is not only related to the type of material, but also to the actual physical structure of the material. It cannot be said that carbon materials are not as big as silicon materials. When the technological means are developed to a high enough level to be able to manipulate the structure at the molecular and atomic level, the structure will be more important than the atomic type;

The third is stability, structural stability and chemical stability. On the one hand, it affects the battery life, and on the other hand determines the safety of the battery. The safety of power batteries is the top priority, and this requirement makes the temporary performance of many materials not be taken seriously.

Overview of silicon monoxide SiO powder as anode material for lithium batteries

Silica is an inorganic compound with the chemical formula SiO. It is dark brown to light yellow amorphous powder under normal temperature and pressure. The melting point is 1702℃, the boiling point is 1880℃, and the density is 2.13g/cm³. Insoluble in water, soluble in dilute hydrofluoric acid. The mixed acid and nitric acid release silicon tetrafluoride, which is heated in the air to produce white silica powder. Silicon monoxide is unstable and oxidizes to silicon dioxide in the air. When silicon monoxide vapors slowly condense, they disproportionate (see disproportionation reaction) to form silicon and silicon dioxide.

The molecular formula of silicon monoxide is SiO, which is insoluble in water. The Si-O bond length is 150.7pm. SiO is a yellow-brown substance in vacuum at 1800°C. Silicon monoxide is not very stable. It is oxidized to silica in the air and is only stable at temperatures above 1200°C. Oxidation

Silicon dissolves in a mixture of hydrofluoric acid and nitric acid, releasing silicon tetrafluoride. Silicon monoxide protects from light and open flames; it is a good insulator for heat and electricity. It oxidizes in the air to form a silicon dioxide film and is passivated. It burns in oxygen and reacts with water to form hydrogen. Hydrogen is produced in a warm solution of alkaline water, forming silicates and dissolving.

Application of silicon monoxide SiO powder as anode material of lithium battery

Silicon monoxide powder can be used as a raw material for fine ceramic synthesis, such as silicon nitride and silicon carbide fine ceramic powder.

Silicon monoxide is used to prepare optical glass and semiconductor materials.

Silicon monoxide evaporates in a vacuum and is coated on the metal mirror surface used in optical instruments as a protective film.

Silicon monoxide can also be used to prepare semiconductor materials.

Silicon oxide coatings are used for optical applications in reflectors, floodlights, mirrors, jewelry and other products.

The SiO coating can reduce reflection or act as an interference layer in the near infrared range.

Sio is also very suitable for reflective coatings containing ZnS and other materials.

Lithium battery cathode material silicon monoxide SiO powder price

Lithium battery cathode material silicon monoxide SiO powder price The price of lithium battery cathode material silicon monoxide SiO powder will vary with the production cost, transportation cost, international situation, exchange rate and market supply and demand of the lithium battery cathode material. Silicon monoxide SiO powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for lithium battery cathode material silicon monoxide SiO powder, please feel free to send an inquiry to get the latest price of lithium battery cathode material silicon monoxide SiO powder.

Suppliers of silicon monoxide SiO powder as anode material for lithium batteries

As a global supplier of anode materials for lithium batteries, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.