Journal
NANO LETTERS
Volume 19, Issue 9, Pages 5879-5884Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.9b01334
Keywords
Carbon nanotube bundles; interstitial channels; antioxidation; lithium reservoir; nanoconfinement
Categories
Funding
- Basic Science Research Program [2017M1A2A2087810, 2017M1A2A2044501, 2018R1A2A1A05019733, 22018M3D1A1058624]
- Wearable Platform Materials Technology Center through National Research Foundation of Korea (NRF) - Ministry of Science, ICT, and future Planning [2016R1A5A1009926]
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2018M1A2A2063341]
- Batteries RD of LG Chem
Ask authors/readers for more resources
Lithium (Li) metal has garnered considerable attention in next-generation battery anodes. However, its environmental vulnerability, along with the electrochemical instability and safety failures, poses a formidable challenge to commercial use. Here, we describe a new class of antioxidative Li reservoir based on interstitial channels of single-walled carbon nanotube (SWCNT) bundles. The Li preferentially confined in the interstitial channels exhibits unusual thermodynamic stability and exceptional capacity even after exposure to harsh environmental conditions, thereby enabling us to propose a new lithiation/delithiation mechanism in carbon nanotubes. To explore practical application of this approach, the Li confined in the SWCNT bundles is electrochemically extracted and subsequently plated on a copper foil. The resulting Li-plated copper foil shows reliable charge/discharge behavior comparable to those of pristine Li foils. Benefiting from the confinement effect of the interstitial channels, the SWCNT bundles hold great promise as an environmentally tolerant, high-capacity Li reservoir.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available