An artificial graphite modification method, which is characterized in that the process steps include: The first step: sieving, crushing the artificial graphite in an ice water bath, peroxidizing treatment, oxidizing potassium permanganate, concentrated sulfuric acid or a mixture of the two, and concentrating potassium The permanganate is 0.1～5m, the sulfuric acid concentration is 12～18m, the solute molar ratio is 10:1～1:10, and the pre-oxidation time is 1～10 hours; step two: dissolve the product of step one in In the bituminous wash oil, heat and stir for in-situ coating treatment, and then centrifuge and filter. The mass ratio of bitumen to washing oil is 0.01~0.4, the mass ratio of artificial graphite to bitumen is 10~100, the coating temperature is 120~200℃, and the reaction time is 2~10 hours.
Lithium battery anode material modified artificial graphite Overview
Modified graphite is a new generation of lithium-ion battery anode material with good performance and low price. Lithium battery cathode material is one of the main materials of lithium ion battery, which plays a key role in energy density and cycle stability. In recent years, with the continuous development of science and technology, new cathode materials such as graphite materials, carbon nanotubes, silicon-based materials, tin-based materials, and tungsten-based materials have emerged in an endless stream. Many are due to various problems. At present, the production of graphite-based carbon materials has always been in the mainstream position of market-oriented anode materials.
Compared with natural graphite, artificial graphite has larger interlayer spacing, lower graphitization degree (≤93%), lower crystallinity and some disordered layered structure. In addition, the surface of artificial graphite is not smooth, porous and has a large specific surface area. It is easy to decompose and react with electrolyte, and its initial efficiency and specific capacity (≤350mAh/g) are low.
Lithium battery anode material modified artificial graphite application
In order to solve the problem of using artificial graphite in lithium-ion batteries, the researchers improved the production process. Modified artificial graphite is modified artificial graphite, which has the characteristics of high density, long cycle time and low expansion rate. Using it as the negative electrode of a lithium-ion battery can increase its conversion to electrolyte, reduce the expansion of the pole piece, and have a positive impact on the overall life of the replacement battery. The production process is to replace artificial graphite with pitch and carbonization. An amorphous carbon doped layer is formed on the surface of the artificial graphite. The overlapping layer prevents co-intercalation of organic solvents and prevents expansion and contraction of graphite. Modified graphite can be used as the negative electrode of lithium ion battery,
Lithium battery anode material modified artificial graphite price
The price of modified artificial graphite products varies randomly with the production cost, transportation cost, international situation, exchange rate, and the supply and demand relationship of modified artificial graphite product market. 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 modified artificial graphite product materials, please feel free to contact for the latest prices of modified artificial graphite materials.
Lithium battery anode material modified artificial graphite supplier
As a global supplier of modified artificial graphite, 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.
Technical Parameter of Anode Material Modified Artificial Graphite
| Product Number | Particle Size ( D50 ) | TAP | SSA | Gram Capacity | Compacted density |
| Tr-A | 11um | 1.2±0.1 g/cc | 1.5±0.5 m2/g | 325-330 mAH/g | 1.50-1.55 |
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