After the 1st journal paper published in 2008, Prof. Yu-Sheng Su's citations finally reached over 10,000! This is a long but happy journey to be a scientist sharing findings and innovations. We look forward to seeing his 20,000 citations soon within a much shorter duration. Keep up the excellent work!
After a year of service in the BEST lab, Dr. Pedaballi is heading to Washington State University to start her new adventure! We all wish her the best in the United States.
We also welcome our new member, Dr. Bui (Nancy), to join in the BEST lab. We look forward to seeing her expertise and research power in graphene and energy storage technologies!
Everyone had a great time today to enjoy quality Indian cuisine. We plan to try Vietnamese food next time.
This paper received an invitation to be featured as "Front Cover".
A low-level metallic lithium thermal prelithiation strategy has been developed for boosting the performance of SiO anode materials with aqueous slurry processability. This facile prelithiation method can alter the phase and crystalline size of lithium silicates by controlling the parameters such as lithium contents and processing temperatures. The prelithiated graphene-SiO composite anode material thus obtained under the optimized condition offers a high reversible capacity of 1062 mAh g−1 and the initial Coulombic efficiency of 80.8 %. Additionally, both the cycle life and cycling Coulombic efficiency are extremely stable, preserving over 90.3 % of the capacity after 200 cycles and more than 99.7 % of the efficiency on average during cycling. The significantly enhanced battery performance of the prelithiated SiO anode materials is owing to the size control of crystal silicon and Li2SiO3 phases. The existence of Li2Si2O5 and suppression of Li4SiO4 formation also guarantee homogeneous prelithiation results. This facile low-level prelithiation approach is remarkably effective to improve the initial Coulombic efficiency for commercial SiO anode materials and simultaneously maintain superior reversible capacity, cycle life, cycling efficiency, and aqueous slurry processability.
