Peter Bieker
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View article: Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte
Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte Open
Electrolytes critically influence the electrochemical performance and cycle life of lithium ion batteries (LIBs). This holds especially for organic redox polymer‐based batteries, such as those employing poly(3‐vinyl‐ N ‐methylphenoxazine) …
View article: Low‐Carbon Poly(3‐vinyl‐ <i>N</i> ‐methylphenothiazine) Electrode Formulation Using PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)) for Lithium‐Based Energy Storage
Low‐Carbon Poly(3‐vinyl‐ <i>N</i> ‐methylphenothiazine) Electrode Formulation Using PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)) for Lithium‐Based Energy Storage Open
Metal‐free organic electrode materials are of increasing interest due to their environmental compatibility, natural abundance, and structural versatility. Poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is an intrinsic…
View article: Multi‐Valent Cation Strategies for Controlling Interphase Chemistry at the Lithium Metal Anode
Multi‐Valent Cation Strategies for Controlling Interphase Chemistry at the Lithium Metal Anode Open
The effectiveness of a solid electrolyte interphase (SEI) in lithium metal batteries (LMBs) is crucial for the reversible deposition and dissolution of lithium (Li). Herein, a multi‐valent cation (MVC) is proposed approach to enable superi…
View article: Competitive Rechargeable Zinc Batteries for Energy Storage
Competitive Rechargeable Zinc Batteries for Energy Storage Open
The continuously increased demand for electrical energy and the associated strong growth in renewable energy necessitate robust, sustainable, and cost‐effective stationary energy storage solutions. This review paper evaluates zinc‐based ba…
View article: From Fabrication to Failure—Aqueous Processing, Electrolyte Tuning, and Degradation Mechanism Elucidation in Poly(3‐Vinyl‐<i>N</i>‐Methylphenoxazine) Positive Electrodes
From Fabrication to Failure—Aqueous Processing, Electrolyte Tuning, and Degradation Mechanism Elucidation in Poly(3‐Vinyl‐<i>N</i>‐Methylphenoxazine) Positive Electrodes Open
Organic electrode materials are considered the next generation of battery electrode materials due to their environmental friendliness, low toxicity, and competitive specific capacities. Herein, a systematic study of the processing of the r…
View article: Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous <i>N</i> ‐Doped Carbon Nanospheres as Conductive Additive
Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous <i>N</i> ‐Doped Carbon Nanospheres as Conductive Additive Open
The increasing demand for batteries in mobile devices, electromobility, and stationary storage requires the development of new battery materials. The organic redox‐active polymer poly(vinyl‐ N ‐methylphenothiazine) (PVMPT) shows a fast and…
View article: Converting a Commercial Separator into a Thin‐film Multi‐Layer Hybrid Solid Electrolyte for Li Metal Batteries
Converting a Commercial Separator into a Thin‐film Multi‐Layer Hybrid Solid Electrolyte for Li Metal Batteries Open
To address the manifold challenges solid electrolytes (SE) do face in NMC‖Lithium metal batteries, we demonstrate that these can be overcome by converting a commercial Celgard 2500 separator into a jack of all trades hybrid solid electroly…
View article: The Influence of Polyethylene Oxide Degradation in Polymer‐Based Electrolytes for NMC and Lithium Metal Batteries
The Influence of Polyethylene Oxide Degradation in Polymer‐Based Electrolytes for NMC and Lithium Metal Batteries Open
A multilayered ternary solid polymer electrolyte (TSPE) is presented. First, the influence of polyethylene oxide degradation on cell failure, development of subsequent volatile degradation products, and cell impedance is analyzed. The low …
View article: Immobilizing Poly(vinylphenothiazine) in Ketjenblack‐Based Electrodes to Access its Full Specific Capacity as Battery Electrode Material
Immobilizing Poly(vinylphenothiazine) in Ketjenblack‐Based Electrodes to Access its Full Specific Capacity as Battery Electrode Material Open
Organic batteries are considered as environmentally friendly alternative to lithium‐ion batteries due to the application of transition metal‐free redox‐active polymers. One well‐established polymer is poly(3‐vinyl‐ N ‐methylphenothiazine) …
View article: An ionic liquid- and PEO-based ternary polymer electrolyte for lithium metal batteries: an advanced processing solvent-free approach for solid electrolyte processing
An ionic liquid- and PEO-based ternary polymer electrolyte for lithium metal batteries: an advanced processing solvent-free approach for solid electrolyte processing Open
A processing solvent-free manufacturing process for cross-linked ternary solid polymer electrolytes (TSPEs) is presented.
View article: Elucidating the lithium deposition behavior in open-porous copper micro-foam negative electrodes for zero-excess lithium metal batteries
Elucidating the lithium deposition behavior in open-porous copper micro-foam negative electrodes for zero-excess lithium metal batteries Open
Lithium electrodeposition analysis in 3D Cu micro-foams for use in ZELMBs reveals that large amounts of lithium are stored within the micro-foam's pore structure, limiting the growth of surface lithium structures and improving the battery …
View article: Evaluating the Polymer Backbone – Vinylene versus Styrene – of Anisyl‐substituted Phenothiazines as Battery Electrode Materials
Evaluating the Polymer Backbone – Vinylene versus Styrene – of Anisyl‐substituted Phenothiazines as Battery Electrode Materials Open
Organic electrode materials are capable candidates for next‐generation greener energy storage solutions. One advantage is that their electrochemical performance can be tuned by structural modification. We herein investigate anisyl‐substitu…
View article: Negative sulfur-based electrodes and their application in battery cells: Dual-ion batteries as an example
Negative sulfur-based electrodes and their application in battery cells: Dual-ion batteries as an example Open
In this work, a cell concept comprising of an anion intercalating graphite-based positive electrode (cathode) and an elemental sulfur-based negative electrode (anode) is presented as a transition metal- and in a specific concept even Li-fr…
View article: Lithium Powder Synthesis and Preparation of Powder‐Based Composite Electrodes for Application in Lithium Metal Batteries
Lithium Powder Synthesis and Preparation of Powder‐Based Composite Electrodes for Application in Lithium Metal Batteries Open
The electrochemical performance of lithium metal batteries is affected by many factors, among which the negative electrode is crucial. Although much of the research is focused on lithium metal electrodes from metallic foils, lithium metal …
View article: Opportunities and Limitations of Ionic Liquid‐ and Organic Carbonate Solvent‐Based Electrolytes for Mg‐Ion‐Based Dual‐Ion Batteries
Opportunities and Limitations of Ionic Liquid‐ and Organic Carbonate Solvent‐Based Electrolytes for Mg‐Ion‐Based Dual‐Ion Batteries Open
Dual‐ion batteries (DIBs) offer a great alternative to state‐of‐the‐art lithium‐ion batteries, based on their high promises due to the absence of transition metals and the use of low‐cost materials, which could make them economically favor…
View article: Increasing the Lithium Ion Mobility in Poly(Phosphazene)-Based Solid Polymer Electrolytes through Tailored Cation Doping
Increasing the Lithium Ion Mobility in Poly(Phosphazene)-Based Solid Polymer Electrolytes through Tailored Cation Doping Open
Solid polymer electrolytes (SPEs) are promising candidates for usage in rechargeable lithium metal batteries (LMBs) as they possess high mechanical, thermal, and chemical stability. However, the poor ionic conductivity of SPEs in compariso…
View article: Galvanic Couples in Ionic Liquid‐Based Electrolyte Systems for Lithium Metal Batteries—An Overlooked Cause of Galvanic Corrosion?
Galvanic Couples in Ionic Liquid‐Based Electrolyte Systems for Lithium Metal Batteries—An Overlooked Cause of Galvanic Corrosion? Open
The breakthroughs in rechargeable lithium metal‐anode‐based batteries is still challenged by safety and performance limitations. Ionic liquid (IL)‐based electrolytes are in consideration for increased safety but their moderate electrolyte …
View article: Dibenzo[<i>a</i>,<i>e</i>]Cyclooctatetraene‐Functionalized Polymers as Potential Battery Electrode Materials
Dibenzo[<i>a</i>,<i>e</i>]Cyclooctatetraene‐Functionalized Polymers as Potential Battery Electrode Materials Open
Organic redox polymers are attractive electrode materials for more sustainable rechargeable batteries. To obtain full‐organic cells with high operating voltages, redox polymers with low potentials (<2 V versus Li|Li + ) are required for th…
View article: Insights into the Solubility of Poly(vinylphenothiazine) in Carbonate-Based Battery Electrolytes
Insights into the Solubility of Poly(vinylphenothiazine) in Carbonate-Based Battery Electrolytes Open
Organic materials are promising candidates for next-generation battery systems. However, many organic battery materials suffer from high solubility in common battery electrolytes. Such solubility can be overcome by introducing tailored hig…
View article: Corrigendum: Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities
Corrigendum: Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities Open
The authors have identified am inor error in Figure 4i nt he originala rticle.The SECM images in panels( b) and (c) appear in the incorrect order.T he correctv ersion appears below.T he authors apologize for the oversight and for any incon…
View article: Approaching Electrochemical Limits of Mg <sub>x</sub> Cl <sub>y</sub> <sup> z+</sup> Complex-Based Electrolytes for Mg Batteries by Tailoring the Solution Structure
Approaching Electrochemical Limits of Mg <sub>x</sub> Cl <sub>y</sub> <sup> z+</sup> Complex-Based Electrolytes for Mg Batteries by Tailoring the Solution Structure Open
The future demand for energy storage requires the development of next generation batteries, e.g. based on magnesium (Mg). Mg as anode material offers great advantages such as low costs and a high volumetric capacity compared to state-of-th…
View article: Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities
Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities Open
Invited for this month's cover picture are the groups of Gunther Wittstock at Carl von Ossietzky University of Oldenburg (Germany) and Martin Winter at Helmholtz‐Institute Münster (Germany). The cover picture shows an artistic vision by An…
View article: Wetting Phenomena and their Effect on the Electrochemical Performance of Surface‐Tailored Lithium Metal Electrodes in Contact with Cross‐linked Polymeric Electrolytes
Wetting Phenomena and their Effect on the Electrochemical Performance of Surface‐Tailored Lithium Metal Electrodes in Contact with Cross‐linked Polymeric Electrolytes Open
Li metal batteries (LMBs) containing cross‐linked polymer electrolytes (PEs) are auspicious candidates for next‐generation batteries. However, the wetting behavior of PEs on uneven Li metal surfaces has been neglected in most studies. Here…
View article: Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities
Solid Electrolyte Interphase Evolution on Lithium Metal Electrodes Followed by Scanning Electrochemical Microscopy Under Realistic Battery Cycling Current Densities Open
Lithium metal electrodes were cycled in 1 M LiClO 4 in propylene carbonate with different current densities. The local protecting properties of the solid electrolyte interphase (SEI) were probed by scanning electrochemical microscopy (SECM…
View article: Sputter coating of lithium metal electrodes with lithiophilic metals for homogeneous and reversible lithium electrodeposition and electrodissolution
Sputter coating of lithium metal electrodes with lithiophilic metals for homogeneous and reversible lithium electrodeposition and electrodissolution Open
Inhomogeneous lithium (Li) deposition leads to the formation of dendrites and "dead" Li, which is a limiting factor for the commercial success of Li metal batteries (LMBs). Herein, the sputter coating of Li metal electrodes by the sputter …
View article: Galvanic Corrosion of Lithium‐Powder‐Based Electrodes
Galvanic Corrosion of Lithium‐Powder‐Based Electrodes Open
Lithium metal is considered to be the most promising anode for the next generation of batteries if the issues related to safety and low coulombic efficiency can be overcome. It is known that the initial morphology of the lithium metal anod…
View article: Solid‐State Lithium–Sulfur Battery Enabled by Thio‐LiSICON/Polymer Composite Electrolyte and Sulfurized Polyacrylonitrile Cathode
Solid‐State Lithium–Sulfur Battery Enabled by Thio‐LiSICON/Polymer Composite Electrolyte and Sulfurized Polyacrylonitrile Cathode Open
Solid‐state lithium–sulfur battery (SSLSB) is attractive due to its potential for providing high energy density. However, the cell chemistry of SSLSB still faces challenges such as sluggish electrochemical kinetics and prominent “chemomech…
View article: Phenothiazine‐Functionalized Poly(norbornene)s as High‐Rate Cathode Materials for Organic Batteries
Phenothiazine‐Functionalized Poly(norbornene)s as High‐Rate Cathode Materials for Organic Batteries Open
Organic cathode materials are handled as promising candidates for new energy‐storage solutions based on their transition‐metal‐free composition. Phenothiazine‐based polymers are attractive owing to their redox potential of 3.5 V vs. Li/Li …
View article: <i>In situ</i><sup>7</sup>Li-NMR analysis of lithium metal surface deposits with varying electrolyte compositions and concentrations
<i>In situ</i><sup>7</sup>Li-NMR analysis of lithium metal surface deposits with varying electrolyte compositions and concentrations Open
A combined study of SEM,in situ7Li-NMR spectroscopy, and electrochemical investigations is applied to in detail elucidate the lithium deposition phenomena of symmetrical Li‖Li cells containing varying electrolyte compositions and concentra…
View article: Lithium-Powder Based Electrodes Modified with ZnI<sub>2</sub> for Enhanced Electrochemical Performance of Lithium-Metal Batteries
Lithium-Powder Based Electrodes Modified with ZnI<sub>2</sub> for Enhanced Electrochemical Performance of Lithium-Metal Batteries Open
Lithium-powder electrodes, prepared via paste casting method using lithium powder and polyisobutylene (PIB) as a binder, were investigated for their electrochemical properties in lithium-metal cells. The electrode paste casting method allo…