Results 121 to 130 of about 15,069 (303)
Degradation Pathways of Silicon‐Based Anodes in Lithium‐Ion Batteries
Advanced Energy Materials, EarlyView.Silicon‐based anodes undergo degradation through five primary pathways: (1) mechanical and structural deterioration of the active material, (2) loss of electrode integrity and electrical contact, (3) mechanical instability of the solid electrolyte interphase (SEI), characterized by repetitive fracture and deformation, (4) chemical instability of the ...
Yoon Jeong Choi +3 more
wiley +1 more source
Grain Boundaries Control Lithiation of Solid Solution Substrates in Lithium Metal Batteries
Advanced ScienceThe development of sustainable transportation and communication systems requires an increase in both energy density and capacity retention of Li‐batteries. Using substrates forming a solid solution with body‐centered cubic Li enhances the cycle stability
Leonardo Shoji Aota +13 more
doaj +1 more source
Lateral lithiation of N,N′-diaryl ureas
, 2006 Aromatic ureas bearing N-(2-alkylaryl) groups may be laterally lithiated by treatment with sec-butyllithium. Quenching with a range of electrophiles yields functionalised aryl ureas in excellent yield.
Clayden, Jonathan, Dufour, Jérémy
core +1 more source
Advanced Energy Materials, EarlyView.Molecular dynamics simulations with machine learning potentials, combined with experiments, reveal how interlayer metals govern Li alloying and crystallization in zero‐excess lithium batteries. Mg and Zn promote solid‐solution alloy‐mediated pathways that influence Li diffusion and structural uniformity, while Bi forms ordered intermetallics with more ...
Neubi F. Xavier Jr. +10 more
wiley +1 more source
Coordination‐Driven Direct C─H Metalation of N‐Heterocycles With a Superbasic Co(II) Amide Co(TMP)2
Angewandte Chemie, EarlyView.By enabling regioselectivities that are inaccessible with conventional bases, this study introduces a Co(II) amide platform for the deprotonative C─H metalation of sensitive N‐heterocycles. Subsequent interception of the resulting Co(II) intermediates with external oxidants affords a family of sterically congested, TMP‐substituted heterocycles via C─N ...
Na Jin +3 more
wiley +2 more sources
Syntheses of Marine Natural Products via Matteson Homologations and Related Processes
Marine DrugsMatteson homologation, a successive extension of chiral boronic esters, is perfectly suited for the synthesis of complex molecular structures containing several stereogenic centers.
Uli Kazmaier
doaj +1 more source
Reagent-controlled lithiation–borylation
, 2015 This chapter focuses on the stereo-controlled homologation of chiral boronic esters with chiral lithium carbenoid (lithiation–borylation) as a powerful method for the asymmetric synthesis of many complex molecules.
Aggarwal, Varinder K. +3 more
core +1 more source
Advanced Energy Materials, EarlyView.A thin gold nanolayer on lithium metal enables stable and uniform lithium plating in solid‐state batteries, enabling nearly 1 year and 11 months of continuous operation. The conductive coating lowers interfacial resistance, suppresses dendrite growth, and improves cycling stability, attributed to homogeneous deposition of Li+ on the gold layer ...
Natalia Voronina +10 more
wiley +1 more source
Lithiation-Induced Embrittlement of Multiwalled Carbon Nanotubes
, 2016 Lithiation of individual multiwalled carbon nanotubes (MWCNTs) was conducted in situ inside a transmission electron microscope. Upon lithiation, the intertube spacing increased from 3.4 to 3.6 Å, corresponding to about 5.9% radial and circumferential ...
Ting Zhu (460268) +13 more
core +1 more source
A Quantitative Lithium Inventory Framework for Anode‐Free Lithium Metal Batteries
Advanced Energy Materials, EarlyView.A component‐resolved lithium inventory framework quantitatively tracks Li redistribution across the cell in anode‐free NMC622||Cu pouch cells throughout cycling. Three sequential degradation stages are identified: formation‐driven cathode Li depletion, midlife inactive Li0 accumulation, and late‐stage runaway SEI thickening. The cathode, as the sole Li
Wurigumula Bao +9 more
wiley +1 more source