TY - GEN
T1 - Effect of calcination temperature on the structure and electrochemical performance of single crystal Li-rich materials
AU - Hao, Jia'nan
AU - Zhao, Jiayu
AU - Chen, Lai
AU - Su, Yuefeng
AU - Wu, Feng
N1 - Publisher Copyright:
© 2023 SPIE. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Single crystal cathode materials have better cycling stability than the polycrystalline ones, since they own smaller specific surface area and better mechanical strength, thus suffering from reduced contact with electrolyte and suppressed generation of cracks during long-term cycling. Consequently, in this work, the single crystal Li-rich materials were synthesized using a molten salt method towards solving the problem of fast capacity decline. We investigated the role of calcination temperature on the structure and performance of synthesized Li-rich materials, and found out that higher temperature is beneficial to the particle growth and structural stability, but it also leads to lattice shrinkage and increased Li2MnO3 phase, which deteriorated the electrochemical performance. Therefore, the calcination temperature is one of the most important parameters in the synthesis of single crystal lithium rich materials, and it is necessary to determine the optimal calcination temperature to achieve a balance between capacity and cycle stability.
AB - Single crystal cathode materials have better cycling stability than the polycrystalline ones, since they own smaller specific surface area and better mechanical strength, thus suffering from reduced contact with electrolyte and suppressed generation of cracks during long-term cycling. Consequently, in this work, the single crystal Li-rich materials were synthesized using a molten salt method towards solving the problem of fast capacity decline. We investigated the role of calcination temperature on the structure and performance of synthesized Li-rich materials, and found out that higher temperature is beneficial to the particle growth and structural stability, but it also leads to lattice shrinkage and increased Li2MnO3 phase, which deteriorated the electrochemical performance. Therefore, the calcination temperature is one of the most important parameters in the synthesis of single crystal lithium rich materials, and it is necessary to determine the optimal calcination temperature to achieve a balance between capacity and cycle stability.
KW - Li-rich materials
KW - calcination temperature
KW - high voltage performance
KW - single crystal
UR - http://www.scopus.com/inward/record.url?scp=85174304416&partnerID=8YFLogxK
U2 - 10.1117/12.3005157
DO - 10.1117/12.3005157
M3 - Conference contribution
AN - SCOPUS:85174304416
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Second International Conference on Energy, Power, and Electrical Technology, ICEPET 2023
A2 - Saat, Mohd Shakir Md
A2 - Reaz, Mamun Bin Ibne
PB - SPIE
T2 - 2nd International Conference on Energy, Power, and Electrical Technology, ICEPET 2023
Y2 - 10 March 2023 through 12 March 2023
ER -