- 研究番号：18C54
- 研究分野：science
- 研究種別：奨励研究
- 研究期間：2018年10月〜2019年03月
代表研究者
李 墨宸 理工総研が募集する次席研究員
LI Mochen Resercher
理工学術院総合研究所 野田 優研究室
Waseda Research Institute for Science and Engineering
研究概要
Carbon nanotube (CNT) as an important allotrope of carbon nanomaterials has attracted tremendous attentions due to its light weight, high electrical conductivity and flexible feature. Significant progresses have been achieved in synthesis and application of CNTs through decades of research. Fluidized-bed chemical vapor deposition method has realized the mass-production of single-wall and multi-wall CNTs in high purity.[1, 2] Besides, CNTs also exhibit huge application potentials in energy storage device, transparent conductive film and field-effect transistors and so on.[3] CNTs have been used as conductive additives in electrodes of LIBs due to its high electrical conductivity. Owing to its extremely high aspect ratio and flexible feature, CNTs are also suitable to be assembled into light-weight self-supporting films through simple filtration and used as 3D current collectors. By replacing conventional Al or Cu foils, areal and volumetric capacities of lithium-ion batteries (LIBs) have been improved simultaneously.
Based on our previous research, we have achieved the production of sub-millimeter long CNTs by applying fluidized-bed method at lower cost, and also realized the control of length and specific surface area (SSA) of CNTs through adjusting the amount and deposition condition of catalyst particles. Although CNTs are proved to be excellent conductive additives, the influences of their length and SSA on LIBs capacities have not been systematically investigated yet. Therefore, we focus on researching the influences of CNT property parameters on the performance of LIBs in this study and the application foreground is prospected.
[1] Q. Zhang, Chem. Sus. Chem. 4, 864 (2011).
[2] Z. Chen, Carbon 80, 399 (2014).
[3] R. Zhang, Chem. Soc. Rev. 46, 3661(2017),
