The main index to measure the quality of spherical graphite

First, physical performance indicators: including particle size (D50, μm), tap density (g/cm3), specific surface area (m2/g), moisture (%), fixed carbon (%)

The second is the electrochemical performance indicators: Coulombic efficiency (%), charging capacity (mAh/g), cycle life (cycles)

Spherical graphite material has the characteristics of good electrical conductivity, high crystallinity, low cost, high theoretical lithium intercalation capacity, low and flat charge and discharge potential, etc. It is an important part of the negative electrode material of lithium ion battery, and it is the negative electrode for lithium ion battery production at home and abroad. Material replacement products. It has excellent electrical conductivity and chemical stability, high charge and discharge capacity, long cycle life, and green environmental protection.

In the process of spherical graphite processing, firstly, in the spherical graphite workshop, the dry graphite concentrate will be roughly crushed, trimmed, magnetically separated and other processes to form the initial product spherical graphite, and then enter the purification workshop to be purified at high temperature to become spherical graphite (high purity).

Mingheda graphite carbon material SG natural spherical graphite includes a series of specifications and models, which can be customized according to customer needs. The design and production of this series of products are based on the characteristics of lithium batteries. After strict separation and control and advanced spheroidization process, the particle size distribution is more reasonable, and the spheroidization and morphology are well controlled. Liquid phase and other coating forms