TY - JOUR
T1 - Electrospun carboxymethyl cellulose acetate butyrate (CMCAB) nanofiber for high rate lithium-ion battery
AU - Qiu, Lei
AU - Shao, Ziqiang
AU - Yang, Mingshan
AU - Wang, Wenjun
AU - Wang, Feijun
AU - Xie, Long
AU - Lv, Shaoyi
AU - Zhang, Yunhua
PY - 2013/7/1
Y1 - 2013/7/1
N2 - Cellulose derivative CMCAB was synthesized, and nanometer fiber composite material was obtained from lithium iron phosphate (LiFePO4, LFP)/CMCAB by electrospinning. Under the protection of inert gas, modified LFP/carbon nanofibers (CNF) nanometer material was obtained by carbonization in 600 C. IR, TG-DSC, SEM and EDS were performed to characterize their morphologies and structures. LFP/CNF composite materials were assembled into lithium-ion battery and tested their performance. Specific capacity was increased from 147.6 mAh g-1 before modification to 160.8 mAh g-1 after modification for the first discharge at the rate of 2 C. After 200 charge-discharge cycles, when discharge rate was increased from 2 C to 5 C to 10 C, modified battery capacity was reduced from 152.4 mAh g-1 to 127.9 mAh g-1 to 106 mAh g-1. When the ratio was reduced from 10 C to 5 C to 2 C, battery capacity can be quickly approximate to the original level. Cellulose materials that were applied to lithium battery can improve battery performance by electrospinning.
AB - Cellulose derivative CMCAB was synthesized, and nanometer fiber composite material was obtained from lithium iron phosphate (LiFePO4, LFP)/CMCAB by electrospinning. Under the protection of inert gas, modified LFP/carbon nanofibers (CNF) nanometer material was obtained by carbonization in 600 C. IR, TG-DSC, SEM and EDS were performed to characterize their morphologies and structures. LFP/CNF composite materials were assembled into lithium-ion battery and tested their performance. Specific capacity was increased from 147.6 mAh g-1 before modification to 160.8 mAh g-1 after modification for the first discharge at the rate of 2 C. After 200 charge-discharge cycles, when discharge rate was increased from 2 C to 5 C to 10 C, modified battery capacity was reduced from 152.4 mAh g-1 to 127.9 mAh g-1 to 106 mAh g-1. When the ratio was reduced from 10 C to 5 C to 2 C, battery capacity can be quickly approximate to the original level. Cellulose materials that were applied to lithium battery can improve battery performance by electrospinning.
KW - Anode materials LFP
KW - Cellulose derivatives
KW - Electrospinning
KW - Lithium-ion battery
UR - http://www.scopus.com/inward/record.url?scp=84877026196&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2013.03.062
DO - 10.1016/j.carbpol.2013.03.062
M3 - Article
AN - SCOPUS:84877026196
SN - 0144-8617
VL - 96
SP - 240
EP - 245
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
IS - 1
ER -
