Carbon-Coated Silicon (Si/C) Anode Powder, 400-500 mAh/g Grades (S400-A to S500-A)

Cat No:BMSPEM-0423

Description

This carbon-coated silicon anode powder from Eata Battery is a silicon-based anode active material for lithium-ion batteries, supplied in four grades that trade off capacity against first-cycle efficiency. Grade specifications (D10 / D50 / D90 in um, specific surface area, tap density, pellet density, discharge capacity, initial coulombic efficiency): S400-A with 8.0 +/- 2.0 / 16.5 +/- 2.0 / 30.0 +/- 3.0 um, SSA below 2.0 m2/g, tap density 0.95 g/cm3, pellet density above 1.20 g/cm3, capacity 400 mAh/g or higher and ICE 91 +/- 1.0%; S420-A with 7.5 +/- 2.0 / 16.0 +/- 2.0 / 30.0 +/- 3.0 um, capacity 420 mAh/g or higher and ICE 90.5 +/- 1.0%; S450-A with 7.0 +/- 2.0 / 15.0 +/- 2.0 / 28.0 +/- 3.0 um, capacity 450 mAh/g or higher and ICE 88.5 +/- 1.0%; S500-A with 6.5 +/- 2.0 / 15.0 +/- 2.0 / 28.0 +/- 3.0 um, tap density 0.90 g/cm3, capacity 500 mAh/g or higher and ICE 87 +/- 1.0%. The carbon coating buffers the volume change of silicon during lithiation and improves electronic conductivity and cycle stability.