A5041676312- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Advanced battery technologies research
- Ionic liquids properties and applications
- Solid-state spectroscopy and crystallography
- Additive Manufacturing and 3D Printing Technologies
- Analytical Chemistry and Sensors
- Machine Learning in Materials Science
- Electrocatalysts for Energy Conversion
- Semiconductor materials and devices
- Recycling and Waste Management Techniques
- Advanced Sensor and Energy Harvesting Materials
- Perovskite Materials and Applications
- Electron and X-Ray Spectroscopy Techniques
- Semiconductor materials and interfaces
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Characterization
- Dielectric materials and actuators
- Synthesis and properties of polymers
- Ferroelectric and Piezoelectric Materials
Uppsala University
2016-2025
Konkuk University
2021
Scania (Sweden)
2021
Centre National de la Recherche Scientifique
2019
Chalmers University of Technology
2017
University of Tartu
2005-2010
Virginia Tech
2007-2008
Interface (United States)
2007
O1s and S2p XPS spectra of the graphite electrode after 1<sup>st</sup> discharge schematic representation solid electrolyte interface (SEI) layers formed in an SPE-based half-cell.
It is often stated that formation of a functional solid electrolyte interphase (SEI) in sodium ion batteries hampered by the higher solubility SEI components such as salts comparison to lithium analogues. In order investigate these phenomena, and functionality, well cell self-discharge, are studied for system with comparative experiments on equivalent system. By conducting set carbonaceous anodes, impact dissolution tested. The results show layer cells inferior counterparts regards...
3D microbatteries are proposed as a step change in the energy and power per footprint of surface mountable rechargeable batteries for microelectromechanical systems (MEMS) other small electronic devices. Within battery electrode, nanoarchitecture gives mesoporosity, increasing by reducing length diffusion path; separator region it can form basis robust but porous solid, isolating electrodes immobilising an otherwise fluid electrolyte. microarchitecture whole cell allows fabrication...
After decades of development in Li-ion batteries, solid polymer electrolytes (SPEs) are currently experiencing a renaissance as promising category materials to be used all-solid-state batteries. However, fundamental understanding their electrochemical properties the battery environment is still lacking, which turn limits implementation this prospective solution. With aim bridging knowledge gap, we have assessed, through first-principles thermodynamics calculations based on atomic-scale...
While biomass waste is generated in abundance, these materials and their production processes are generally environmentally friendly, low cost, non-hazardous easily scalable. These advantages position as excellent candidates to solve problems of environmental pollution, primarily by substitution less sustainable counterparts. This also applies energy storage systems such batteries, where several components have large impacts. Lithium–Sulfur batteries have, this context, been extensively...
The galvanostatic intermittent titration technique (GITT) is considered the go-to method for determining Li+ diffusion coefficients in insertion electrode materials. However, GITT-based methods are either time-consuming, prone to analysis pitfalls or require sophisticated interpretation models. Here, we propose current interruption (ICI) as a reliable, accurate and faster alternative methods. Using Fick's laws, prove that ICI renders same information GITT within certain duration of time...
Abstract Polymer composite electrolytes (PCEs), i.e., materials combining the disciplines of polymer chemistry, inorganic and electrochemistry, have received tremendous attention within academia industry for lithium‐based battery applications. While PCEs often comprise 3D micro‐ or nanoparticles, this review thoroughly summarizes prospects 2D layered inorganic, organic, hybrid nanomaterials as active (ion conductive) passive (nonion fillers in PCEs. The synthetic nanofillers covered here...
ConspectusPolymer electrolytes constitute a promising type of material for solid-state batteries. However, one the bottlenecks their practical implementation lies in transport properties, often including restricted Li+ self-diffusion and conductivity low cationic transference numbers. This calls molecular understanding ion polymer which dynamics (MD) simulation can provide both new physical insights quantitative predictions. Although efforts have been made this area qualitative pictures...
Among the alternative host materials for solid polymer electrolytes (SPEs), polycarbonates have recently shown promising functionality in all-solid-state lithium batteries from ambient to elevated temperatures. While computational and experimental investigations of ion conduction conventional polyethers been extensive, transport has much less studied. The present work investigates ionic behavior SPEs based on poly(trimethylene carbonate) (PTMC) its co-polymer with ε-caprolactone (CL) via...
Abstract The authors review the efforts made from a modeling and simulation perspective in order to assist both fundamental understanding as well development of higher performance sodium‐ion battery (SIB) electrolytes. Depending on type electrolyte studied, liquid, ionic polymer, glass, solid‐state, etc., methods applied research questions focus differ, but all contribute more rational progress. Furthermore, create cases meta‐analysis using literature data. A historical is clearly recent...
Compositional studies on interphase layers at polymer electrolyte/electrode interfaces displayed dependence the host materials and their water content.
Dilithium benzenedipropiolate was prepared and investigated as a potential negative electrode material for secondary lithium-ion batteries. In addition to the expected reduction of its carbonyls, this can reduce reversibly oxidize unsaturated carbon–carbon bonds leading Li/C ratio 1/1 specific capacity high 1363 mAh g–1: highest ever reported lithium carboxylate. Density functional theory calculations suggest that lithiation is preferential on propiolate carbons.
PEO, used either as a binder or polymer coating, and PEGDME, an electrolyte additive, are shown to increase the reversible capacity of Li-S cells. The effect, in all three cases, is same: improved solvent system for electrochemistry sulfur species suppression cathode passivation on discharge. This constitutes novel interpretation mechanistic behaviour polyethers system, sheds new light upon several previous studies.
In this work, the influence of cathode binders on porosity composite electrodes for lithium–sulfur (Li–S) batteries employing high surface area carbon blacks has been closely scrutinized. This accomplished by comparison PVdF with related copolymer, PVdF-HFP. Analysis black after addition binder in NMP solution reveals that PVdF(-HFP) fills pores almost any size black, which can effect a severe reduction pore volume and accessible to electrolyte Li–S cell. Noting different swelling behavior...
Solid polymer electrolytes (SPEs) are promising candidates for Li metal battery applications, but the interface between these two categories of materials has so far been studied only to a limited degree.
The self-discharge behaviour of lithium–sulfur (Li–S) cells containing LiNO<sub>3</sub> is explored by a range electrochemical and surface analysis techniques.
The high-voltage spinel LiNi0.5Mn1.5O4 (LNMO) is an attractive positive electrode because of its operating voltage around 4.7 V (vs Li/Li+) and high power capability. However, problems including electrolyte decomposition at transition metal dissolution, especially elevated temperatures, have limited potential use in practical full cells. In this paper, a fundamental study for LNMO∥Li4Ti5O12 (LTO) cells has been performed to understand the effect different capacity fading mechanisms...