TY - JOUR
T1 - Spherical mesophase soft carbon materials with micro-nano composite structure and their applications in lithium-ion batteries
AU - Huang, Fuchuang
AU - Zhao, Qinghai
AU - Yang, James
AU - Zhang, Hongxin
AU - Huo, Wei
AU - Xu, Fangchao
N1 - Funding Information:
This work was supported by National High-tech R&D Program of China (863 Program) [2014AA052303]
Publisher Copyright:
© 2018, © 2018 Taylor & Francis Group, LLC.
PY - 2018/7/18
Y1 - 2018/7/18
N2 - This paper is to investigate the mesophase sphere soft carbon material with micro-nano composite structure and its application in the energy-storage Li-ion battery and electrochemical performance of the battery through experimental tests. The results show that the ball diameter is below 10 μm. For button half-cell, the first coulombic efficiency at 0.1C rate is about 87.1%, the ratio that charging capacity of 2C divided by the charging capacity of 1C is 84.8%, and the charging capacity retention rate after 50 cycles at 0.5C rate is 99.9%. For a full battery of 50 Ah, the discharge capacity can still maintain at 80% or more at the 2C or 3C discharging rate, its discharge rate can still reach more than 80% at a temperature of −20℃, and the capacity retention is 97.7% after 500 cycles.
AB - This paper is to investigate the mesophase sphere soft carbon material with micro-nano composite structure and its application in the energy-storage Li-ion battery and electrochemical performance of the battery through experimental tests. The results show that the ball diameter is below 10 μm. For button half-cell, the first coulombic efficiency at 0.1C rate is about 87.1%, the ratio that charging capacity of 2C divided by the charging capacity of 1C is 84.8%, and the charging capacity retention rate after 50 cycles at 0.5C rate is 99.9%. For a full battery of 50 Ah, the discharge capacity can still maintain at 80% or more at the 2C or 3C discharging rate, its discharge rate can still reach more than 80% at a temperature of −20℃, and the capacity retention is 97.7% after 500 cycles.
KW - Electrochemical performance
KW - Li-ion battery
KW - mesophase sphere soft carbon material
KW - micro-nano composite structure
KW - properties of materials
UR - http://www.scopus.com/inward/record.url?scp=85049865699&partnerID=8YFLogxK
U2 - 10.1080/15567036.2018.1486897
DO - 10.1080/15567036.2018.1486897
M3 - Review article
AN - SCOPUS:85049865699
VL - 40
SP - 1675
EP - 1680
JO - Energy Sources, Part A: Recovery, Utilization and Environmental Effects
JF - Energy Sources, Part A: Recovery, Utilization and Environmental Effects
SN - 1556-7036
IS - 14
ER -