Ganyong Starch Derived Hard Carbon Anodes for Sodium Ion Batteries

Arenst Andreas Arie (1) , Kevin Hazel (1) , Hans Kristianto (1) , Henky Muljana (1) , Lorenzo Stievano (2, 3)

1 Parahyangan Catholic University
2 RS2E - Réseau sur le stockage électrochimique de l'énergie
3 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

Hard carbons are one of the most promising carbon anode materials for sodium ion batteries (SIBs) due to the high specific capacity and excellent cycle properties. Among the precursors used to synthesize hard carbon, natural starches are of great interest due to their unique morphologies. In this paper, ganyong starch based hard carbons (GSHC) were prepared by direct carbonization at various temperatures (700–1100) °C. The obtained hard carbons exhibit high reversible capacities of sodium-ion batteries of about 239 mAh g –1 at current density of 0.1 C. after 100 cycles. The excellent cycle profiles are attributed to the unique morphology and defect carbon structures.

Domaines: Matériaux

Arenst Andreas Arie, Kevin Hazel, Hans Kristianto, Henky Muljana, Lorenzo Stievano. Ganyong Starch Derived Hard Carbon Anodes for Sodium Ion Batteries. Journal of Nanoscience and Nanotechnology, 2021, 21 (7), pp.4033-4036. ⟨10.1166/jnn.2021.19220⟩. ⟨hal-03327114⟩