Extracting the Full Potential of Single-Walled Carbon Nanotubes as Durable Supercapacitor Electrodes Operable at 4 V with High Power and Energy Density

2010 ◽  
Vol 22 (35) ◽  
pp. E235-E241 ◽  
Author(s):  
Ali Izadi-Najafabadi ◽  
Satoshi Yasuda ◽  
Kazufumi Kobashi ◽  
Takeo Yamada ◽  
Don N. Futaba ◽  
...  
ACS Nano ◽  
2011 ◽  
Vol 5 (6) ◽  
pp. 5280-5280 ◽  
Author(s):  
Xiaojun Zhang ◽  
Wenhui Shi ◽  
Jixin Zhu ◽  
Daniel Julian Kharistal ◽  
Weiyun Zhao ◽  
...  

ACS Nano ◽  
2011 ◽  
Vol 5 (3) ◽  
pp. 2013-2019 ◽  
Author(s):  
Xiaojun Zhang ◽  
Wenhui Shi ◽  
Jixin Zhu ◽  
Daniel Julian Kharistal ◽  
Weiyun Zhao ◽  
...  

2015 ◽  
Author(s):  
Rachel Carter ◽  
Landon Oakes ◽  
Cary L. Pint

This paper highlights our progress in developing pristine single-walled carbon nanotubes (SWCNTs) into functional materials for lightweight, conductive cathodes in lithium air (Li-air) batteries. We outline a process to produce foams of single-walled carbon nanotubes using liquid processing routes that are free of additives or surfactants, using polar solvents and electrophoretic deposition. To accomplish this, SWCNTs are deposited onto sacrificial metal foam templates, and the metal foam is removed to yield a freestanding, all-SWCNT foam material. We couple this material into a cathode for a Li-air battery and demonstrate excellent performance that includes first discharge capacity over 8200 mAh/g, and specific energy density of ∼ 21.2 kWh/kg (carbon) and ∼ 3.3 kWh/kg (full cell). We further compare this to the performance of foams prepared with SWCNTs that are dispersed with surfactant, and our results indicate that surfactant residues completely inhibit the nucleation of stable lithium peroxide materials — a result measured across multiple devices. Comparing to multi-walled carbon nanotubes produced using the same technique indicates a discharge capacity of only ∼ 1500 mAh/g, which is over 5X lower than SWCNTs in the same processing technique and material architecture. Overall, this work highlights SWCNT materials in the absence of impurities introduced during experimental processing as a lightweight and high performance electrode material for lithium-air batteries.


2015 ◽  
Vol 3 (31) ◽  
pp. 15858-15862 ◽  
Author(s):  
Chuiyan Kong ◽  
Weizhong Qian ◽  
Chao Zheng ◽  
Wei Fei

A nanofluid electrolyte of single walled carbon nanotubes and ionic liquids enhances the energy density, power density and cycling stability of nanotube electrodes at 5 V.


2011 ◽  
Vol 36 (7) ◽  
pp. 1284 ◽  
Author(s):  
Hou-Ren Chen ◽  
Yong-Gang Wang ◽  
Chih-Ya Tsai ◽  
Kuei-Huei Lin ◽  
Teng-Yao Chang ◽  
...  

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