TY - JOUR
T1 - Impact of Graphene Oxide Lateral Size on the Long-Term Stability of LiNi0.5Mn1.5O4 Electrodes
AU - Uth, Marie
AU - Verdelin, Jannie K.
AU - Buhl, Kristian B.
AU - Hjelm, Johan
AU - Pedersen, Steen U.
AU - Daasbjerg, Kim
AU - Ravnsbaek, Dorthe B.
PY - 2026
Y1 - 2026
N2 - Increasing the operating voltage of Li-ion batteries is crucial for enhancing the energy density. However, high-voltage batteries suffer from long-term stability issues. Graphene materials used as electrode additives have previously been shown to improve performance, yet the impact of variations in the graphene materials has not been thoroughly explored. Herein, we explore the effect of graphene oxide (GO) drop-in additives with different lateral sizes in LiNi0.5Mn1.5O4 (LNMO)-positive electrodes. The additive reduces polarization of the LNMO electrode under long-term cycling, leading to stability improvements, with the smaller lateral size proving to be superior.
AB - Increasing the operating voltage of Li-ion batteries is crucial for enhancing the energy density. However, high-voltage batteries suffer from long-term stability issues. Graphene materials used as electrode additives have previously been shown to improve performance, yet the impact of variations in the graphene materials has not been thoroughly explored. Herein, we explore the effect of graphene oxide (GO) drop-in additives with different lateral sizes in LiNi0.5Mn1.5O4 (LNMO)-positive electrodes. The additive reduces polarization of the LNMO electrode under long-term cycling, leading to stability improvements, with the smaller lateral size proving to be superior.
U2 - 10.1002/batt.202500357
DO - 10.1002/batt.202500357
M3 - Journal article
SN - 2566-6223
JO - Batteries and Supercaps
JF - Batteries and Supercaps
M1 - e202500357
ER -