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Browsing by Subject "Lithium compounds"

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Enhanced conductivity at the interface of Li2O:B2O3 nanocomposites: Atomistic models

Islam, Mazharul M.; Bredow, Thomas; Indris, Sylvio; Heitjans, Paul (College Park, ML : American Physical Society, 2007)

A theoretical investigation at density-functional level of Li ion conduction at the interfaces in Li2O:B2O3 nanocomposites is presented. The structural disorder at the Li2O(111):B2O3(001) interface leads to reduced defect ...
From ultraslow to fast lithium diffusion in the 2D ion conductor Li0.7TiS2 probed directly by stimulated-echo NMR and nuclear magnetic relaxation

Wilkening, Martin; Küchler, W.; Heitjans, Paul (College Park, ML : American Physical Society, 2006)

7Li stimulated-echo NMR and classical relaxation NMR techniques are jointly used for the first time for a comprehensive investigation of Li diffusion in layer-structured Li0.7TiS2. One single 2D Li diffusion process was ...
Fundamental material properties of the 2LiBH4-MgH2 reactive hydride composite for hydrogen storage: (I) Thermodynamic and heat transfer properties

Jepsen, Julian; Milanese, Chiara; Puszkiel, Julian; Girella, Alessandro; Schiavo, Benedetto; Lozano, Gustavo A.; Capurso, Giovanni; Von Colbe, José M. Bellosta; Marini, Amedeo; Kabelac, Stephan; Dornheim, Martin; Klassen, Thomas (Basel : MDPI AG, 2018)

Thermodynamic and heat transfer properties of the 2LiBH4-MgH2 composite (Li-RHC) system are experimentally determined and studied as a basis for the design and development of hydrogen storage tanks. Besides the determination ...
Fundamental material properties of the 2LiBH4-MgH2 reactive hydride composite for hydrogen storage: (II) Kinetic properties

Jepsen, Julian; Milanese, Chiara; Puszkiel, Julian; Girella, Alessandro; Schiavo, Benedetto; Lozano, Gustavo A.; Capurso, Giovanni; Von Colbe, José M. Bellosta; Marini, Amedeo; Kabelac, Stephan; Dornheim, Martin; Klassen, Thomas (Basel : MDPI AG, 2018)

Reaction kinetic behaviour and cycling stability of the 2LiBH4-MgH2 reactive hydride composite (Li-RHC) are experimentally determined and analysed as a basis for the design and development of hydrogen storage tanks. In ...
High-Capacity, Dendrite-Free, and Ultrahigh-Rate Lithium-Metal Anodes Based on Monodisperse N-Doped Hollow Carbon Nanospheres

Liu, Yuping; Zhen, Yanzhong; Li, Taoran; Bettels, Frederik; He, Tao; Peng, Manhua; Liang, Yucang; Ding, Fei; Zhang, Lin (Weinheim : Wiley-VCH, 2020)

To unlock the great potential of lithium metal anodes for high-performance batteries, a number of critical challenges must be addressed. The uncontrolled dendrite growth and volume changes during cycling (especially, at ...
Improved Electrochemical Performance of Modified Mesocarbon Microbeads for Lithium-Ion Batteries Studied using Solid-State Nuclear Magnetic Resonance Spectroscopy

Bösebeck, Katharina; Chandran, C. Vinod; Licht, Björn K.; Binnewies, Michael; Heitjans, Paul (Weinheim : Wiley-VCH Verlag, 2016)

Lithium-intercalating materials such as graphite are of great interest, especially for application in lithium-ion batteries. In this work we present an investigation of the electrochemical performance of mesocarbon microbeads ...
Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries

Wang, Qingsong; Sarkar, Abishek; Wang, Di; Velasco, Leonardo; Azmi, Raheleh; Bhattacharya, Subramshu S.; Bergfeldt, Thomas; Düvel, Andre; Heitjans, Paul; Brezesinski, Torsten; Hahn, Horst; Breitung, Ben (Cambridge : Royal Society of Chemistry, 2019)

In the present work, a new class of high entropy materials for energy storage applications is introduced. Multi-anionic and -cationic compounds are prepared by facile mechanochemistry using a recently designed multi-cationic ...
Nanocrystalline versus microcrystalline Lo2O:B2O 3 composites: Anomalous ionic conductivities and percolation theory

Indris, Sylvio; Heitjans, Paul; Roman, H. Eduardo; Bunde, Armin (College Park, ML : American Physical Society, 2000)

We study ionic transport in nano- and microcrystalline (1−x)Li2O:xB2O3 composites using standard impedance spectroscopy. In the nanocrystalline samples (average grain size of about 20 nm), the ionic conductivity σdc increases ...
Nitrogen Doping Improves the Immobilization and Catalytic Effects of Co9S8 in Li-S Batteries

Liu, Yuping; Ma, Shuangying; Liu, Lifeng; Koch, Julian; Rosebrock, Marina; Li, Taoran; Bettels, Frederik; He, Tao; Pfnür, Herbert; Bigall, Nadja C.; Feldhoff, Armin; Ding, Fei; Zhang, Lin (Weinheim : Wiley-VCH, 2020)

Several critical issues, such as the shuttling effect and the sluggish reaction kinetics, exist in the design of high-performance lithium–sulfur (Li-S) batteries. Here, it is reported that nitrogen doping can simultaneously ...
Synthesis of ternary transition metal fluorides Li 3MF 6via a sol-gel route as candidates for cathode materials in lithium-ion batteries

Kohl, Julia; Wiedemann, Dennis; Nakhal, Suliman; Bottke, Patrick; Ferro, Noel; Bredow, Thomas; Kemnitz, Erhard; Wilkening, Martin; Heitjans, Paul; Lerch, Martin (Cambridge : Royal Society of Chemistry, 2012)

A sol-gel route for ternary lithium fluorides of transition metals (M) is presented allowing the synthesis of Li 3MF 6-type and Li 2MF 5-type compounds. It is based on a fluorolytic process using transition metal ...

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Browsing by Subject "Lithium compounds"

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