TY - GEN
T1 - Capacity revival of tungsten trioxide anode material in lithium-ion battery
AU - Pathak, Rajesh
AU - Chen, Ke
AU - Bahrami, Behzad
AU - Rahman, Tawabur
AU - Lu, Huitian
AU - Zhou, Yue
AU - Qiao, Qiquan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - Transitional Metal Oxides (TMOs) has been considered as one of the promising candidates for anode materials in Lithium-ion batteries (LIBs) due to their high theoretical capacities. However, low electronic conductivity, volume expansion during discharge/charge cycles and poor rate capability challenges its further use in LIBs. In this work, unique behavior of self-revival in the capacity with cycling is presented. Self-revival in the capacity was attained by doping pristine tungsten trioxide (WO3) with nitrogen at high temperature. The percentage increase of self-revived discharge capacity corresponding to the preceding discharge capacity at cycles, 9th (412.85 Vs 370.95 mAhg-1), 13th (405.24 Vs 390.95 mAhg-1) and 36th (552.38 Vs 138.57 mAhg-1) cycles were 11.29%, 3.65% and 298.63%, respectively. This interesting phenomenon of self-capacity revival can be attributed to the reduction in the particle size of WO3 that leads to high surface area. In addition, the created oxygen vacancies and defects make the reduced WO3 electrochemically active and enhance the catalytic activity.
AB - Transitional Metal Oxides (TMOs) has been considered as one of the promising candidates for anode materials in Lithium-ion batteries (LIBs) due to their high theoretical capacities. However, low electronic conductivity, volume expansion during discharge/charge cycles and poor rate capability challenges its further use in LIBs. In this work, unique behavior of self-revival in the capacity with cycling is presented. Self-revival in the capacity was attained by doping pristine tungsten trioxide (WO3) with nitrogen at high temperature. The percentage increase of self-revived discharge capacity corresponding to the preceding discharge capacity at cycles, 9th (412.85 Vs 370.95 mAhg-1), 13th (405.24 Vs 390.95 mAhg-1) and 36th (552.38 Vs 138.57 mAhg-1) cycles were 11.29%, 3.65% and 298.63%, respectively. This interesting phenomenon of self-capacity revival can be attributed to the reduction in the particle size of WO3 that leads to high surface area. In addition, the created oxygen vacancies and defects make the reduced WO3 electrochemically active and enhance the catalytic activity.
KW - Anode
KW - Li-ion battery
KW - Self-revive of Capacity
KW - WO3
UR - http://www.scopus.com/inward/record.url?scp=85072819469&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072819469&partnerID=8YFLogxK
U2 - 10.1109/EIT.2019.8833643
DO - 10.1109/EIT.2019.8833643
M3 - Conference contribution
AN - SCOPUS:85072819469
T3 - IEEE International Conference on Electro Information Technology
SP - 469
EP - 473
BT - 2019 IEEE International Conference on Electro Information Technology, EIT 2019
PB - IEEE Computer Society
T2 - 2019 IEEE International Conference on Electro Information Technology, EIT 2019
Y2 - 20 May 2019 through 22 May 2019
ER -