Filled Carbon Nanotubes as Anode Materials for Lithium-Ion Batteries

Autor: Markus Gellesch, Sabine Wurmehl, Silke Hampel, E. Thauer, Maik Scholz, Rüdiger Klingeler, Rasha Ghunaim, Lucas Schlestein, Christoph Neef, Ewa Mijowska, Christian Nowka, Aakanksha Kapoor, Lukas Deeg, Karolina Wenelska, Florian Wilhelmi, Rouven Zeus, Marcel Haft, Philip Schneider, Alexander Ottmann, Ashna Bajpai, Lucas Möller
Přispěvatelé: Publica
Jazyk: angličtina
Rok vydání: 2020
Předmět:
lithium-ion batteries
Pharmaceutical Science
Nanoparticle
Applied Physics (physics.app-ph)
02 engineering and technology
Review
01 natural sciences
Ferric Compounds
Analytical Chemistry
Nanomaterials
law.invention
Nanocomposites
anode material
law
Drug Discovery
Condensed Matter - Materials Science
Oxides
Physics - Applied Physics
Cobalt
021001 nanoscience & nanotechnology
Chemistry (miscellaneous)
Molecular Medicine
0210 nano-technology
filled carbon nanotubes
Materials science
FOS: Physical sciences
chemistry.chemical_element
Nanotechnology
Carbon nanotube
Lithium
010402 general chemistry
Energy storage
lcsh:QD241-441
Electric Power Supplies
Microscopy
Electron
Transmission
lcsh:Organic chemistry
Physical and Theoretical Chemistry
Electrodes
Ions
Nanocomposite
Nanotubes
Carbon
Organic Chemistry
Electric Conductivity
Materials Science (cond-mat.mtrl-sci)
Electrochemical Techniques
hybrid nanomaterials
Electrical contacts
0104 chemical sciences
Anode
chemistry
Manganese Compounds
Tin
Microscopy
Electron
Scanning
Carbon
Zdroj: Molecules, Vol 25, Iss 5, p 1064 (2020)
Molecules
ISSN: 1420-3049
Popis: Downsizing well-established materials to the nanoscale is a key route to novel functionalities, in particular if different functionalities are merged in hybrid nanomaterials. Hybrid carbon-based hierarchical nanostructures are particularly promising for electrochemical energy storage since they combine benefits of nanosize effects, enhanced electrical conductivity and integrity of bulk materials. We show that endohedral multiwalled carbon nanotubes (CNT) encapsulating high-capacity (here: conversion and alloying) electrode materials have a high potential for use in anode materials for lithium-ion batteries (LIB). There are two essential characteristics of filled CNT relevant for application in electrochemical energy storage: (1) rigid hollow cavities of the CNT provide upper limits for nanoparticles in their inner cavities which are both separated from the fillings of other CNT and protected against degradation. In particular, the CNT shells resist strong volume changes of encapsulates in response to electrochemical cycling, which in conventional conversion and alloying materials hinders application in energy storage devices. (2) Carbon mantles ensure electrical contact to the active material as they are unaffected by potential cracks of the encapsulate and form a stable conductive network in the electrode compound. Our studies confirm that encapsulates are electrochemically active and can achieve full theoretical reversible capacity. The results imply that encapsulating nanostructures inside CNT can provide a route to new high-performance nanocomposite anode materials for LIB.
Comment: Invited
Databáze: OpenAIRE
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