10 results for "Peter Axmann"

Enhancing Sodium‐Ion Battery Performance: The Role of Glyoxylic Acetal‐Based Electrolytes in Solid Electrolyte Interphase Formation and Stability

Mariana Gaško; Christian Leibing; Lukas Fridolin Pfeiffer et al.

ChemElectroChem, Vol. 12 No. 17 · 2025 · English · DOAJ Scopus

This study systematically investigates the feasibility of replacing conventional sodium hexafluorophosphate (NaPF6) in carbonate‐based electrolytes with sodium bis(fluorosulfonyl)imide (NaFSI) and sodium bis(trifluoromethanesulfonyl)imide (NaTFSI) in a 1,1,2,2‐tetraethoxyglyoxal (TEG):propylene…

Towards low-cost sodium-ion batteries: electrode behavior of graphite electrodes obtained from spheroidization waste fractions and their structure-property relations

Ines Escher; Marilena Mancini; Jan Martin et al.

JPhys Energy, Vol. 5 No. 1 · 2022 · English · DOAJ Scopus

Electrode materials for lithium-ion batteries (LIBs) typically show spherical particle shapes. For cathode materials, the spherical shape is obtained through the synthesis method. For graphite, the by far most popular anode material for LIBs, spherical particles are obtained through a…

Battery-grade graphite from direct recycling: effect of the thermal treatment on the properties of the regenerated anode material

Jan Peter Martin; Marius Fabian Oneli; Peter Axmann et al.

Journal of Power Sources Advances, Vol. 38 · 2026 · English · DOAJ Scopus

Scalable and sustainable lithium-ion battery recycling routes could be crucial for the future economic and ecological landscape of Europe. Although graphite is a critical raw material for the EU, the recycling of graphite from spent cells is currently limited to a small scale and is less developed…

Electrolyte‐Dependent Sodium Plating for Anode‐Free Na‐Ion Batteries Studied by Operando Optical Microscopy

Moritz Exner; Dominik Stepien; Annica I. Freytag et al.

Advanced Science, Vol. 13 No. 24 · 2026 · English · DOAJ Scopus

ABSTRACT Anode‐free sodium ion batteries (SIBs) promise higher energy density and lower costs, by eliminating the need for an anode host material; however, achieving efficient Na plating/stripping remains a major challenge. Here, three electrolyte classes − carbonate‐based, glyme‐based, and a…

Layered P2-NaxMn3/4Ni1/4O2 Cathode Materials For Sodium-Ion Batteries: Synthesis, Electrochemistry and Influence of Ambient Storage

Lukas Fridolin Pfeiffer; Nicola Jobst; Cornelius Gauckler et al.

Frontiers in Energy Research, Vol. 10 · 2022 · English · DOAJ Scopus

Sodium-ion batteries promise efficient, affordable and sustainable electrical energy storage that avoids critical raw materials such as lithium, cobalt and copper. In this work, a manganese-based, cobalt-free, layered NaxMn3/4Ni1/4O2 cathode active material for sodium-ion batteries is developed. A…

Lithium-ion batteries – Current state of the art and anticipated developments

Michel B. Armand; Peter Axmann; Dominic Bresser et al.

Journal of Power Sources · 2020 · English · OpenAlex Scopus

MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries

Cornelius Gauckler; Gints Kucinskis; Lukas Fridolin Pfeiffer et al.

Journal of Power Sources Advances, Vol. 25 · 2024 · English · DOAJ Scopus

In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na0.67Mn0.75Ni0.25O2 (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20–50 nm, is obtained by means of a facile wet-chemistry…

Combined study of phase transitions in the P2-type Na X Ni1/3Mn2/3O2 cathode material: experimental, ab-initio and multiphase-field results

Simon Daubner; Manuel Dillenz; Lukas Fridolin Pfeiffer et al.

npj Computational Materials, Vol. 10 No. 1 · 2024 · English · DOAJ Scopus

Abstract The research of new electrode materials such as sodium intercalation compounds is key to meet the challenges of future demands of sustainable energy storage. For these batteries, the intercalation behavior on the micro-scale is governed by a complex interplay of chemical, electrical and…

Electrical Characterization and Micro X-ray Computed Tomography Analysis of Next-Generation Silicon Alloy Lithium-Ion Cells

Gert Berckmans; Lysander De Sutter; Algirdas Kersys et al.

World Electric Vehicle Journal, Vol. 9 No. 3 · 2018 · English · DOAJ Scopus

This study analyzed a prototype of a pouch cell containing silicon alloy anodes with the potential to significantly increase the energy density, resulting in improved autonomy for electric vehicles. An electrical characterization campaign was performed, resulting in three main observations…

Bulk and Surface Reactivity of LiNi0.5Mn1.5O4 in Contact with (Acidic) Water

Annika R. Schuer; Matthias Kuenzel; Maider Zarrabeitia et al.

Advanced Energy & Sustainability Research, Vol. 7 No. 1 · 2026 · English · DOAJ Scopus

Lithium‐ion battery cathode materials such as LiNi0.5Mn1.5O4 (LNMO) are very sensitive to water, which has so far hindered the successful commercialization of aqueous electrode processing strategies. Herein, a detailed investigation of the surface and bulk reactivity of ordered LNMO with water and…