TY - JOUR
T1 - Extremely durable high-rate capability of a LiNi 0.4Mn 0.4Co 0.2O 2 cathode enabled with single-walled carbon nanotubes
AU - Ban, Chunmei
AU - Li, Zheng
AU - Wu, Zhuangchun
AU - Kirkham, Melanie J.
AU - Chen, Le
AU - Jung, Yoon Seok
AU - Payzant, E. Andrew
AU - Yan, Yanfa
AU - Whittingham, M. Stanley
AU - Dillon, Anne C.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - A binder-free LiNi 0.4Mn 0.4Co 0.2O 2 cathode fabricated with 5 wt.% single-walled carbon nanotubes (SWNTS) shows excellent cycling performance at rates of 10C (Charge/discharge in 6 minutes). In contrast, a LiNi 0.4Mn 0.4Co 0.2O 2 electrode prepared by conventional methods without SWNTs has a significantly lower capacity. Based on the morphology and structural analysis, this exceptional rate capability is due to highly intimate contact between the long crystalline SWNT ropes and the active cathode material, ensuring fast diffusion of ions and electrons during cycling and resulting in sustainable capacity at high rates for 500 cycles.
AB - A binder-free LiNi 0.4Mn 0.4Co 0.2O 2 cathode fabricated with 5 wt.% single-walled carbon nanotubes (SWNTS) shows excellent cycling performance at rates of 10C (Charge/discharge in 6 minutes). In contrast, a LiNi 0.4Mn 0.4Co 0.2O 2 electrode prepared by conventional methods without SWNTs has a significantly lower capacity. Based on the morphology and structural analysis, this exceptional rate capability is due to highly intimate contact between the long crystalline SWNT ropes and the active cathode material, ensuring fast diffusion of ions and electrons during cycling and resulting in sustainable capacity at high rates for 500 cycles.
UR - http://www.scopus.com/inward/record.url?scp=80051794213&partnerID=8YFLogxK
U2 - 10.1002/aenm.201000001
DO - 10.1002/aenm.201000001
M3 - Article
AN - SCOPUS:80051794213
SN - 1614-6832
VL - 1
SP - 58
EP - 62
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 1
ER -