نتایج جستجو برای: li intercalation
تعداد نتایج: 47794 فیلتر نتایج به سال:
High pressure–high temperature (HP/HT) methods are utilized to introduce structural modifications in the layered lithium transition metal oxides LiCoO2 and Li[NixLi1/3 2x/3Mn2/3 x/3]O2 where x 1⁄4 0.25 and 0.5. The electrochemical property to structure relationship is investigated combining computational and experimental methods. Both methods agree that the substitution of transition metal ions...
Ni-rich Li-based layered Ni, Co, and Mn (NCM) materials have shown tremendous promise in recent years as positive electrode materials for Li-ion batteries. This is evident as companies developing batteries for electrical vehicles are currently commercializing these materials. Despite the considerable research performed on LiNiαCoβMnγO2 systems, we do not yet have a complete atomic level underst...
Carbon-based anodes show many promising properties in lithium-ion rechargeable batteries. So-called ‘disordered carbons’ are characterized by a substantial amount of residual hydrogen, and exhibit large Li uptake capacities. We have employed a variety of neutron scattering techniques, coupled with computer simulations, to study the composition, local atomic structure, and vibrational dynamics o...
High voltage cathode materials Li-excess layered oxide compounds Li[NixLi1/3 2x/3Mn2/3 x/3]O2 (0 < x < 1/2) are investigated in a joint study combining both computational and experimental methods. The bulk and surface structures of pristine and cycled samples of Li[Ni1/5Li1/5Mn3/5]O2 are characterized by synchrotron X-Ray diffraction together with aberration corrected Scanning Transmission Elec...
This research study the application of the immobilized TiO2 layer and Cu-TiO2 layer on graphite substrate as a negative electrode or anode for Li-ion battery. The titania layer was produced through chemical bath deposition method, meanwhile Cu particles were deposited electrochemically. A material can be used as an electrode as it has capability to intercalates Li ions into its crystal structur...
We have studied by NMR, magnetometry and x-ray diiraction several lithium doped fullerides Li x C 60. We have found that the stoichiometry x=12 represents the minimum Li doping for a phase whose structure is strikingly similar to that of pristine C 60 and it extends to much larger Li doping levels x. We have followed the temperature dependence of the structure of the x = 12 phase. It is fcc at ...
Abstract The hardware implementation of artificial neural networks requires synaptic devices with linear and high‐speed weight modulation. Memristors as a candidate suffer from excessive write variation asymmetric resistance modulation that inherently rooted in their stochastic mechanisms. Thanks to controllable ion intercalation/deintercalation mechanism, electrolyte‐gated transistors (EGTs) h...
Back cover image: The crystal plane exposure is of great significance to the structural stability layered cathodes. In article number 10.1002/cey2.298, Qiu and co-workers deciphered degradation discrepancy Ni-rich cathode with a diverse proportion [003] crystallographic textures, revealing structure-activity relationship between face oxygen release stability. Although textures was conducive Li+...
K-ion batteries utilizing ionic liquid (IL) electrolytes are promising candidates for next-generation because of the abundance potassium resources, low redox potential potassium, and high safety ILs. Our major interest is in comprehensive understanding electrochemical alkali metal intercalation/deintercalation into graphite negative electrodes, can easily form intercalation compounds (GICs) wit...
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