Papers nuevos sobre Baterías y materiales energéticos
31 papers nuevos sobre baterías y materiales energéticos en los últimos 7 días, dentro de Química y materiales. Acá están los 31 que Pipette considera más valiosos, con el resultado principal en palabras de sus autores.
Lo mejor de la semana
Simulation of a Battery Cell on Quantum Computers: Reactions & Transport
We show how it can evaluate general electrochemical models and present a quantum simulation of the Single Particle Model with electrolyte (SPMe) as the first quantum simulation of a battery cell.
PreprintDice ser un gran avanceThird-generation ultralong-term latent heat storage glass based on a sugar alcohol mixture
These results establish a third-generation latent heat storage mode, retaining the charged state as a kinetically arrested amorphous solid and thereby fundamentally shifting the stability criterion from supercooled-liquid nucleation suppression to glass-transition and structural-relaxation kinetics.
Revista con revisión por paresDice ser un gran avanceUso en el mundo realRecord stack durability in industrial solid oxide steam electrolysis through operational control
Here, we show that long-term stack durability can be strongly influenced by operating strategy, achieving 25,000 h of steam electrolysis operation in a full 70-cell solid oxide electrolysis cell stack under frequency-dependent electrochemical operation (AC:DC).
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceUso en el mundo realPrussian blue regulates ion dynamics in perovskite solar cells
We report that a lattice-matched Prussian blue scaffold directs heterogeneous nucleation to produce highly oriented, strain-relaxed films.
Revista con revisión por paresUso en el mundo realPt Nanoparticles Supported on Ta-Doped TiO2 for Durable Proton Exchange Membrane Water Electrolysis
Here, we show that this century-old bottleneck can be alleviated by an electron-shuttling junction in which Pt nanoparticles are anchored to a tantalum (Ta)-doped titanium dioxide support, with Fermi level higher than Pt.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceUso en el mundo realDynamic hydroxide transport intrusively damages anion exchange membranes
Herein, we report that dynamic ion transport processes fundamentally govern AEM stability degradation.
Revista con revisión por paresUso en el mundo realActivating Aqueous Multivalent Metal–Sulfur Electrochemistry via Kinetic Promoter
Here, we decouple sulfur-conversion kinetics from sulfur-species stabilization by introducing a kinetic promoter.
Revista con revisión por paresUso en el mundo realLong-Life Zinc–Bromine Flow Batteries with Low-Temperature Operation Enabled by Hydration Modulation of Complexing Agents
Zinc–bromine flow batteries with the target complexing agent, 1-[2-hydroxyethyl]-1-methylpyrrolidinium bromide, outperform those with traditional complexing agents in cycle life (>4000 cycles versus ∼800 cycles) at high current densities (charge: 200 mA cm–2, discharge: 80 mA cm–2) and in low-temperature adaptability (>700 h versus <10 h at 40 mA cm–2 and −20 °C).
Revista con revisión por paresUso en el mundo realUltralow-Barrier Ion Transport in the Subnitride Electride BaN for High-Rate Sodium Storage
Here, using comprehensive first-principles calculations, we demonstrate that the quasi-one-dimensional subnitride electride BaN offers a compelling route to overcome the long-standing performance trade-offs in sodium-ion battery anodes.
PreprintAfirmaciones fuertes, leer con cuidadoUso en el mundo realLi+ Shuttle bus enables safe fast ion transport in solid polymer electrolytes
This work establishes a Li⁺ shuttle-bus strategy for constructing solid polymer electrolytes with fast-charging capability and wide-temperature adaptability, offering findings into the design of solid-state lithium metal batteries.
Revista con revisión por paresUso en el mundo realBalanced Coordination Chemistry for Architecture-Universal Perovskite Solar Cells
Here, we demonstrate that superior performance in FAPbI3-based PSCs is dictated by a principle of balanced coordination strength.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realConformal oxides decouple chemical stability and energetics at NiO x /perovskite interfaces
This synergy yielded high efficiency in perovskite photovoltaic devices and showed an ~10x improvement in T 90 lifetime in open-circuit conditions under AM1.5G at 65°C.
Revista con revisión por paresUso en el mundo realTernary-Ion Batteries
To overcome this fundamental trade-off, we herein propose a ternary-ion mechanism that orchestrates the cooperative reactions of three distinct ionic species through mutually matched redox reactions and coordinated multivalent-metal ion exchange at the cathode and anode.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceUso en el mundo realDual-Atom-Doped Metastable Iridium Oxide with Multichamber Nanostructure for Durable Low-Iridium PEM Electrolyzers
Herein, we report a class of Hf/Co dual-atom-doped multichamber 3R-IrO2 electrocatalysts by integrating mesoscale structural engineering with atomic-scale electronic regulation to achieve a durable low-Ir PEM electrolyzer.
Revista con revisión por paresUso en el mundo realUnlocking cycle life of lithium metal batteries
Here, we reveal that electrolyte depletion caused by unstable solid electrolyte interphases (SEIs) leads to electrolyte dry-out and induces lithium compensation through anode-to-cathode cross-talk, whereby soluble anionic species formed at the anode migrate to the cathode and release Li + from electrolyte salts upon oxidation.
Revista con revisión por paresUso en el mundo realElectrohydrodynamic-Mediated Molecular Coordination for Stabilizing α-Phase Perovskite Solar Cells
Herein, we demonstrate an electrohydrodynamic (EHD)-mediated chemical strategy to bypass this kinetic trap using a multifunctional molecular, tetramethylthiourea (TeMTU).
Revista con revisión por paresUso en el mundo realLong-duration aqueous manganese metal anode by hydrogel solvation regulation
This work demonstrates an effective solvation-regulation strategy via hydrogel design for durable Mn anodes in aqueous batteries.
Revista con revisión por paresUso en el mundo real“Spike-Accessed” Polymer-Based Interphase-Engineered Surface-to-Bulk Lattice Stabilization for Ni-Rich Positive Electrodes
Consequently, NCM811 positive electrodes incorporating the engineered CEI retain discharge capacities exceeding 100 mAh g–1 after 2,400 cycles at 5 C while exhibiting suppressed transition-metal dissolution and minimal impedance growth, even when cycled to 4.5 V. The strategy further enables stable cycling of 5.61 Ah lithium–metal (ca.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realActivating the Anomalous Jahn–Teller Effect in NASICON-Type Mixed Phosphate Cathode via Crystal Field Engineering
Herein, we report a NASICON-type cathode, Na3.85□0.15Mn1.35Fe1.5V0.15(PO4)2(P2O7) (□ denotes Na vacancy, NFMPP-V), in which vanadium substitution reconfigures the Mn3+-induced Jahn–Teller distortion and couples it with multivalent redox processes, achieving enhanced energy density and reaction kinetics.
Revista con revisión por paresUso en el mundo real“Electronic Sponge” Strategy Enables Polyether Electrolytes for High-Voltage and Fast-Charging Quasi-Solid-State Batteries
This work pioneers a universal electron regulation paradigm for designing advanced polyether electrolytes and stable interphases toward high-voltage, fast-charging quasi-solid-state batteries.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realCrystallographic Alignment of α-FAPbI3 {100} Facets at the Buried Interface for Efficient Perovskite Photovoltaics
Here, we identify buried-interface molecules that integrate a perovskite-interacting heterocycle with a substrate-anchoring carboxyl group, enabling the ordered alignment of {100} facets at the SnO2/perovskite interface.
Revista con revisión por paresUso en el mundo realMobility-lifetime relation links photodegradation in spin-coated and gravure-printed organic solar cells
These results identify the mobility-lifetime product as a unifying physical descriptor for photodegradation, linking ageing-induced microscopic changes to macroscopic performance loss across spin-coated and scalable printed OSCs.
PreprintUso en el mundo realEfficient yet stable large perovskite solar modules made using surface treatment
Large modules treated instead with chemically stable lead carboxylate passivators were efficient, reliable and had a higher yield than did commercial silicon modules.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realLiNiO2/NiO Phase Prediction Using Artificial Neural Networks
Our networks exhibit very robust results, especially when dealing with highly varying data, an area where traditional template-matching methods typically struggle.
PreprintUso en el mundo realOperando and Postmortem Study of Iridium-Decorated Titanium-Based Catalysts in PEM Water Electrolysis
Results confirm the dissolution and oxidation of Ti in TiC and TiN, as well as the structural stability of TiO2, and better describe the boundaries of the trade-off between nanoparticle stability and support robustness.
Revista con revisión por paresUso en el mundo realHigh-Throughput Photovoltaic Screening and Spacer-Dependent Shift Current in Two-Dimensional Hybrid Perovskites
Overall, these results highlight the potential of high-throughput first-principles calculations to accelerate the discovery of experimentally relevant 2D HOIPs with promising photovoltaic properties while revealing how organic spacer chemistry influences their nonlinear shift photocurrent response.
PreprintA kinetic model of electron transfer at the electrode-electrolyte interface: Statistical mechanics and electrochemical aspects
Phys.} 163, 164113), based on the seamless combination of the electron transfer at the electrode/electrolyte interface with the charge and mass transport in electrolyte solutions, holds the promise to advance the comprehensive modeling of basic electrochemical devices such as electrolytic cells and batteries.
PreprintIlluminated Semiconducting Electrodes Show Saturation Kinetics under Conditions of Inversion
We find that kobs saturates with respect to light and can be described using a simple steady-state approximation to extract maximum light-dependent observed ET rate constants, kobs,max.
Revista con revisión por paresElectrolyte Dependent Structure Transport Relationships in Electrodeposited Prussian Blue Analogue Thin Films
These results demonstrate that electrolyte identity controls not only lattice dimensions but also the organization and connectivity of defect networks, highlighting structural coherence and accessible transport pathways as key factors governing electrochemical performance in PBA thin films.
PreprintA fast physics-based matrix model for the impedance of a PEM fuel cell: Incorporating functionally graded catalyst layer and channel impedances
We extend a recent physics-based matrix model for calculating PEM fuel cell impedance (doi:10.1149/2754-2734/ad6ce8) to cases of low air flow stoichiometry and functionally graded cathode catalyst layers (CCLs).
PreprintFinding hidden factors of a battery’s life
Two new descriptors enable precise evaluation of rechargeable lithium-metal battery performance.
Revista con revisión por pares