Application fields of lithium manganate

Application fields of lithium manganate

Mainly used in the manufacture of lithium-ion batteries for cell phones, notebook computers and other portable electronic devices as cathode materials.

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2021-08

Preparation methods of lithium manganese oxide.

2021-08-03

There are many methods for synthesizing spinel-type lithium manganese oxide, mainly including high-temperature solid-state method, melt infiltration method, microwave synthesis method, sol-gel method, emulsion drying method, co-precipitation method, Pechini method, and hydrothermal synthesis method.

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2021-08

The physicochemical properties of lithium manganate.

2021-08-03

Lithium manganese oxide is one of the more promising cathode materials for lithium-ion batteries. Compared to traditional cathode materials like lithium cobalt oxide, lithium manganese oxide has advantages such as abundant resources, low cost, non-pollution, good safety, and excellent rate performance, making it an ideal cathode material for power batteries. However, its poor cycling performance and electrochemical stability significantly limit its industrialization. Lithium manganese oxide mainly includes spinel-type lithium manganese oxide and layered structure lithium manganese oxide, with the spinel-type lithium manganese oxide having a stable structure that is easy to industrialize. Currently, market products are all of this structure. Spinel-type lithium manganese oxide belongs to the cubic crystal system, with the Fd3m space group and a theoretical specific capacity of 148 mAh/g.

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2021-08

Applications of manganese monoxide

2021-08-03

Used as a raw material for producing ferrite, drying agents for paints and varnishes, catalysts for manufacturing pentanol, feed additives, and trace element fertilizers. Also used in medicine, smelting, welding, fabric reduction dyeing, glass coloring, oil bleaching, ceramics, and the manufacturing of dry batteries, among others.

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Preparation of Manganese Monoxide

2021-08-03

Reduced roasting of soft manganese ore produces the reaction products, which are cooled under conditions that exclude air. Any other manganese oxide can also be obtained by heating in hydrogen. Additionally, manganese hydroxide and manganese carbonate can be heated in the absence of air to obtain it.

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2021-08

The chemical properties of manganese monoxide.

2021-08-03

In a hot concentrated ammonium chloride solution, manganese chloride and ammonia are formed. When heated in air, it easily transforms into other high-valent manganese oxides, such as manganese tetroxide, manganese dioxide, and manganese trioxide. It is relatively difficult to reduce; at 1200°C, it is not reduced by hydrogen, but can be reduced by carbon at 1100-1200°C. Hydrogen and manganese dioxide are generated in red-hot steam. When heated with sulfur, it produces sulfur dioxide and manganese sulfide. It melts in inert gases without decomposition.

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2021-08

The main uses of manganese tetroxide.

2021-08-03

Used in the production of soft magnetic ferrites for the electronics industry, serving as magnetic cores, disks, and tapes for information storage in electronic computers, transformers for telephones, high-quality inductors, television flyback transformers, magnetic heads, inductors, magnetic amplifiers, saturated inductors, antenna rods, etc. It can also be used as a pigment in certain paints or coatings.

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2021-08

The production process of manganese trioxide (Mn3O4)

2021-08-03

Manganese tetroxide is one of the important raw materials for the preparation of soft magnetic materials such as manganese zinc ferrite. The existing technologies for preparing manganese tetroxide include roasting, reduction, oxidation, and electrolysis. The method of preparing manganese tetroxide using manganese sulfate solution involves adding an alkaline substance to the manganese sulfate solution to convert it into Mn(OH)2, and then using an oxidizing agent or oxygen, air to oxidize the manganese hydroxide in the solution to obtain manganese tetroxide.

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2021-08

The physical properties of manganese(III) oxide (Mn3O4) include its appearance as a black or brown solid, a melting point of approximately 1,500 °C, and a density of about 4.8 g/cm³. It is insoluble in water and exhibits magnetic properties.

2021-08-03

Manganese tetraoxide has a distorted tetragonal spinel structure below a temperature of 1443K, and a cubic spinel structure above 1443K. It exists in nature in the form of pyrolusite and is the most stable oxide. It is insoluble in water but soluble in hydrochloric acid and sulfuric acid. The product, when fully heated and then cooled, no longer absorbs oxygen and is stable in air. It crystallizes in a tetragonal spinel-type body-centered cubic lattice with a = 0.575nm and c = 0.942nm, with the lattice unit being Mn4Mn8O16.

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2021-08

The chemical properties of manganese(III) oxide (Mn3O4) include its ability to act as an oxidizing agent, its reactivity with acids to form manganese salts, and its interaction with other compounds in various oxidation states. It can also participate in redox reactions and is used in various chemical syntheses.

2021-08-03

Stable at room temperature and pressure. It is a brownish-red or brown crystalline powder that, when calcined, forms crystals. It has a spinel ionic structure of Mn2+(Mn3+)2O4, where Mn2+ and Mn3+ ions are distributed in two different lattice positions.

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