Journal ArticleDOI
Graphite intercalation of bis(trifluoromethanesulfonyl) imide and other anions with perfluoroalkanesulfonyl substituents
Reads0
Chats0
TLDR
Graphite intercalation compounds containing the bis(trifluoromethanesulfonyl) imide anion, C x N(SO 2 CF 3 ) 2, were prepared under ambient conditions in 48% hydrofluoric acid, using the oxidant K 2 MnF 6. Within seconds, the graphite phase was no longer observed, and a stable, stage 2 product with x = 37 and d i = 8.1 A was obtained in 15 min this article.About:
This article is published in Materials Research Bulletin.The article was published on 1999-02-01. It has received 84 citations till now. The article focuses on the topics: Intercalation (chemistry) & Imide.read more
Citations
More filters
Journal ArticleDOI
An ultrafast rechargeable aluminium-ion battery
Meng-Chang Lin,Ming Gong,Bingan Lu,Yingpeng Wu,Di Yan Wang,Mingyun Guan,Michael Angell,Changxin Chen,Jiang Yang,Bing-Joe Hwang,Hongjie Dai +10 more
TL;DR: A rechargeable aluminium battery with high-rate capability that uses an aluminium metal anode and a three-dimensional graphitic-foam cathode, found to enable fast anion diffusion and intercalation, and to withstand more than 7,500 cycles without capacity decay.
Journal ArticleDOI
Use of graphite as a highly reversible electrode with superior cycle life for sodium-ion batteries by making use of co-intercalation phenomena.
Birte Jache,Philipp Adelhelm +1 more
TL;DR: Highlights of the electrode reaction are its high energy efficiency, the small irreversible loss during the first cycle, and a superior cycle life with capacities close to 100 mAh g(-1) for 1000 cycles and coulomb efficiencies >99.87%.
Journal ArticleDOI
Advanced rechargeable aluminium ion battery with a high-quality natural graphite cathode
Di Yan Wang,Chuan Yu Wei,Chuan Yu Wei,Meng-Chang Lin,Chun-Jern Pan,Chun-Jern Pan,Hung Lung Chou,Hsin An Chen,Ming Gong,Yingpeng Wu,Chunze Yuan,Michael Angell,Yu Ju Hsieh,Yu Hsun Chen,Cheng-Yen Wen,Chun-Wei Chen,Bing-Joe Hwang,Chia Chun Chen,Chia Chun Chen,Hongjie Dai +19 more
TL;DR: Two different intercalation processes involving chloroaluminate anions at the two discharging plateaus are shown, while C–Cl bonding on the surface, or edges of natural graphite, is found using X-ray absorption spectroscopy, and theoretical calculations are employed to investigate the intercalated behaviour of choloraluminateAnions in the graphite electrode.
Journal ArticleDOI
Dual-graphite cells based on the reversible intercalation of bis(trifluoromethanesulfonyl)imide anions from an ionic liquid electrolyte
Sergej Rothermel,Paul Meister,Guido Schmuelling,Olga Fromm,Hinrich-W. Meyer,Sascha Nowak,Martin Winter,Tobias Placke +7 more
TL;DR: In this article, the authors proposed a dual-graphite and dual-carbon energy storage system, where the graphite was used as both anode and cathode material in a so-called dual graphite or dual carbon cell, and an ionic liquid-based electrolyte mixture was used in combination with the SEI-forming additive ethylene sulfite.
References
More filters
Journal ArticleDOI
X-ray line broadening from filed aluminium and wolfram
G.K Williamson,W.H Hall +1 more
TL;DR: In this paper, the authors used a Geiger counter spectrometer to measure the changes in intensity distribution in the spectra of cold worked aluminium and wolfram and found that the line breadths may be attributed to simultaneous small particle size and strain broadening, the latter predominating at the higher Bragg angles.
Journal ArticleDOI
Lithium-ion rechargeable batteries with LiCoO2 and carbon electrodes: the LiCoO2/C system
TL;DR: In this article, LiCoO 2 remains stable and non-graphitizable carbon exhibits a good cyclability with respect to Li-doping/undoping capability, and even if the cell is overcharged, safety can be attained by providing an anti-overcharging safety device which operates when Li 2 CO 3 in the cathode is decomposed and by using a polyolefin separator which shuts down at a high temperature due to overcharge current.
Journal ArticleDOI
A general recursion method for calculating diffracted intensities from crystals containing planar faults
TL;DR: In this paper, a general recursion algorithm is described for calculating kinematical diffraction intensities from crystals containing coherent planar faults, which exploits the self-similar stacking sequences that occur when layers stack non-deterministically.
Journal ArticleDOI
Intercalation of lithium into graphite and other carbons
Daniel Guérard,Albert Herold +1 more
TL;DR: In this article, the first, second, third, fourth and fourth stages of graphite-lithium compounds were obtained by heating graphite and lithium at 400°C in a copper or stainless-steel tube; and compressing lithium powder with crushed natural graphite under an argon atmosphere in a glove-box.
Journal ArticleDOI
The imide ion: potential energy surface and geometries
TL;DR: In this paper, the Hartree-Fock (HF) calculations of the bis-(trifluoromethanesulphone) imide ion (TFSI), N(CF 3 SO 2 ) − 2, using the 6-31G∗ Gaussian basis set, have been performed in order to investigate the potential energy surface (PES) through rotations about the SN bonds and to obtain the minimum energy structure.