Batteries: A New High Power LiNi_0.81Co_0.1Al_0.09O₂ Cathode Material for Lithium‐Ion Batteries (Adv. Energy Mater. 13/2014)

A new cathode composition in the form of LiNi0.81Co0.1Al0.09O2 is reported by Youngsik Kim, Jaephil Cho, and co-workers in article number 1301583. Compared to the popular LiNi0.85Co0.1Al0.05O2 cathode, the new LiNi0.81Co0.1Al0.09O2 exhibits excellent rate capability of 155 mAh g−1 at 10 C with a cut-off voltage range between 3 and 4.5 V, corresponding to 562 Wh kg−1 at 24 °C. It additionally provides improved thermal stability above 200 °C and electrochemical performance at the high temperature of 60 °C, demonstrating a discharge capacity of 122 mAh g−1 after 200 cycles with a capacity retention of 59%.