TY - JOUR
T1 - Mechanical alloy coating of LATP decorated porous carbon on LiFe1/3Mn1/3Co1/3PO4/C composite cathode for high-voltage Li-ion battery
AU - Nguyen, Thanh Nhat Phat
AU - Karuppiah, Chelladurai
AU - Chien, Wen Chen
AU - Wu, She huang
AU - Jose, Rajan
AU - Lue, Shingjiang Jessie
AU - Yang, Chun Chen
N1 - Publisher Copyright:
© 2020
PY - 2020/11/1
Y1 - 2020/11/1
N2 - Mixed ionic (Li1.4Al0.4Ti1.6(PO4)3; LATP) and electronic (porous carbon; C) conductor based composite coating is demonstrated on LiFe1/3Mn1/3Co1/3PO4/C olivine-type (LFMCP) composite cathode materials, for the first time, by dry particle coating method using novel mechanofusion treatment. The LFMCP cathode material is prepared through one-time (LFMCP#1) and two-time (LFMCP#2) ball-mill plus spray dry method by adding transition metal precursors with citric acid and sucrose as reducing agent and carbon source. Later, the LFMCP#2 sample is dry coated with 2 wt.% LATP@C composite filler to enhance the electrochemical performance. The initial charge-discharge result reveals the discharge capacity of the LFMCP#2-LATP@C is around 151.87 mAh g−1 at 0.1C rate which is comparatively higher than the LFMCP#1 and LFMCP#2 electrodes. Besides, LFMCP#2-LATP@C/Li cell achieved superior capacity retention value around 92.20%, after 30 cycles at 0.1C/0.1C and 81.01% for 100 cycles at 1C/1C rate. The excellent cycle stability is archived due to the improved interface properties between the LATP@C coated LFMCP materials and electrolytes. AC impedance analysis confirms the lower charge transfer resistance and higher Li+ ion diffusion properties of LFMCP#2-LATP@C materials. The results suggested that the dry particle coating of LiFe1/3Mn1/3Co1/3PO4 material with LATP@C coating layer can used as a potential candidate for the high voltage lithium battery.
AB - Mixed ionic (Li1.4Al0.4Ti1.6(PO4)3; LATP) and electronic (porous carbon; C) conductor based composite coating is demonstrated on LiFe1/3Mn1/3Co1/3PO4/C olivine-type (LFMCP) composite cathode materials, for the first time, by dry particle coating method using novel mechanofusion treatment. The LFMCP cathode material is prepared through one-time (LFMCP#1) and two-time (LFMCP#2) ball-mill plus spray dry method by adding transition metal precursors with citric acid and sucrose as reducing agent and carbon source. Later, the LFMCP#2 sample is dry coated with 2 wt.% LATP@C composite filler to enhance the electrochemical performance. The initial charge-discharge result reveals the discharge capacity of the LFMCP#2-LATP@C is around 151.87 mAh g−1 at 0.1C rate which is comparatively higher than the LFMCP#1 and LFMCP#2 electrodes. Besides, LFMCP#2-LATP@C/Li cell achieved superior capacity retention value around 92.20%, after 30 cycles at 0.1C/0.1C and 81.01% for 100 cycles at 1C/1C rate. The excellent cycle stability is archived due to the improved interface properties between the LATP@C coated LFMCP materials and electrolytes. AC impedance analysis confirms the lower charge transfer resistance and higher Li+ ion diffusion properties of LFMCP#2-LATP@C materials. The results suggested that the dry particle coating of LiFe1/3Mn1/3Co1/3PO4 material with LATP@C coating layer can used as a potential candidate for the high voltage lithium battery.
KW - Dry particle coating
KW - High voltage Li-ion battery
KW - Ionic conductor
KW - LiFe0.33Mn0.33Co0.33PO4/C
KW - Olivine-type cathode
UR - http://www.scopus.com/inward/record.url?scp=85090052894&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2020.136980
DO - 10.1016/j.electacta.2020.136980
M3 - 文章
AN - SCOPUS:85090052894
SN - 0013-4686
VL - 359
JO - Electrochimica Acta
JF - Electrochimica Acta
M1 - 136980
ER -