Natural Graphite Production Process for Battery Applications

Mining:

Graphite is extracted from natural deposits through surface or underground mining. The raw ore is typically mixed with other materials, requiring further processing.

Flotation:

The mined graphite ore undergoes froth flotation, where water and chemicals separate the graphite from impurities. This results in a concentrate containing higher graphite purity.

Chemical Purification:

The graphite concentrate is chemically treated (often with acids) to remove remaining impurities. This step increases purity to 99.95% or higher, required for battery-grade graphite.

Micronization:

The purified graphite is ground into fine particles to meet the size specifications for battery applications. This improves the material’s suitability for further processing.

Spheronization:

The graphite particles are shaped into spherical forms to increase packing density and improve conductivity in the battery anode. Spheronization enhances the material’s electrochemical performance.

Coating:

The spherical graphite is coated with a carbon layer, which enhances its conductivity and stability during battery cycling. This coating also protects the graphite from side reactions.

Thermal Purification:

In a high-temperature furnace, any remaining impurities are vaporized, achieving ultra-high purity (>99.99%). This step ensures the graphite meets stringent quality requirements for battery applications.

Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.

Innovation, R&D, passionate and skilled team along with the customer satisfaction have always been the success of Hengyang and they still are the peculiarities of our Company. Besides the historical Hengyang equipment, like single and double shafts shredders, Crushing machine, briquetting machines, separators, squeezers and centrifuges, the Company offers a wide range of turn-key plants, among which:

• briquetting and pelletizing plants
• shredding plants
• Waste Sorting Plants
• Bio-fuel Plants
• Waste to Power Recycling Plants
• Mining Plants
• OEM Equipments
……..
Hengyang is able to develop customized solutions too.
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