Bartosz Hamankiewicz
YOU?
Author Swipe
View article: Femtosecond Laser Treatment of Copper Current Collectors and Their Application in Li-Ion Batteries
Femtosecond Laser Treatment of Copper Current Collectors and Their Application in Li-Ion Batteries Open
Current collectors (CCs) play an important role in enhancing the electrochemical performance of lithium-ion batteries (LiB). Research shows that increasing the surface roughness of copper foil helps improve the bonding strength between the…
View article: PEDOT:PSS as a conductive polymer binder for ecologically and economically sustainable, carbon-free NMC electrodes
PEDOT:PSS as a conductive polymer binder for ecologically and economically sustainable, carbon-free NMC electrodes Open
In this work new dispersion medium for positive electrode slurries for lithium-ion batteries, dimethyl sulfoxide (DMSO), is proposed, in combination with PEDOT:PSS conductive polymer as a binder. Dispersion of PEDOT:PSS in concentration of…
View article: Ex Situ Raman Mapping of LiMn<sub>2</sub>O<sub>4</sub> Electrodes Cycled in Lithium-Ion Batteries
Ex Situ Raman Mapping of LiMn<sub>2</sub>O<sub>4</sub> Electrodes Cycled in Lithium-Ion Batteries Open
In this study, we focus on the large-scale ex situ Raman mapping of LiMn2O4 (LMO) electrodes maintained at varying states of charge. A comprehensive statistical analysis has been conducted at an area of ca. 3660 μm2 on more than 3100 colle…
View article: Structural analysis and electrochemical investigation of dual-doped NMC622 cathode material: Effect of sodium and neodymium on the performance in Li-ion batteries
Structural analysis and electrochemical investigation of dual-doped NMC622 cathode material: Effect of sodium and neodymium on the performance in Li-ion batteries Open
Ni-rich layered oxides are the most promising cathode materials for high-energy-density Li-ion batteries. Full utilization of their potential resulting from high nickel content, mainly high capacity, is impaired due to the rapid performanc…
View article: Correlation between Lithium Titanium Oxide Powder Morphology and High Rate Performance in Lithium-Ion Batteries
Correlation between Lithium Titanium Oxide Powder Morphology and High Rate Performance in Lithium-Ion Batteries Open
This study determined the measurable factor responsible for the high rate performance of lithium titanium oxide (Li4Ti5O12, LTO) powders in lithium-ion batteries. The structural and morphological properties of various Li4Ti5O12 materials a…
View article: Suppressing Ni/Li disordering in LiNi0.6Mn0.2Co0.2O2 cathode material for Li-ion batteries by rare earth element doping
Suppressing Ni/Li disordering in LiNi0.6Mn0.2Co0.2O2 cathode material for Li-ion batteries by rare earth element doping Open
The growing demand for efficient lithium-ion batteries to power vehicles and energy storage entails improving cathode material properties. Maintaining the stability of Ni-rich layered structure oxide cathodes is critical for long-term Li-i…
View article: First delivery of input and validation data on electrochemical testing of components and cells
First delivery of input and validation data on electrochemical testing of components and cells Open
Summary of the first set of electrochemical data related to electrochemical properties of Si-based electrodes. These include i.a. specific capacity, potential profiles, SEI layer resistance, CT resistance, lithium diffusion coefficient, an…
View article: UV-Cured Poly(Siloxane-Urethane)-Based Polymer Composite Materials for Lithium Ion Batteries—The Effect of Modification with Ionic Liquids
UV-Cured Poly(Siloxane-Urethane)-Based Polymer Composite Materials for Lithium Ion Batteries—The Effect of Modification with Ionic Liquids Open
The results of studies on the synthesis and characterization of conductive polymer composite materials designed as potential separators for lithium ion batteries are presented. The conductive polymer composites were prepared from UV-cured …
View article: Cover Feature: A New Technique for In Situ Determination of the Active Surface Area Changes of Li–Ion Battery Electrodes (Batteries & Supercaps 10/2020)
Cover Feature: A New Technique for In Situ Determination of the Active Surface Area Changes of Li–Ion Battery Electrodes (Batteries & Supercaps 10/2020) Open
The Cover Feature illustrates the porous and complex nature of the Li-ion battery electrode. During cell operation the active material grains suffer from volume changes, and as a consequence show surface area expansion/contraction. It is h…
View article: Surface Oxidation of Nano-Silicon as a Method for Cycle Life Enhancement of Li-ion Active Materials
Surface Oxidation of Nano-Silicon as a Method for Cycle Life Enhancement of Li-ion Active Materials Open
Among the many studied Li-ion active materials, silicon presents the highest specific capacity, however it suffers from a great volume change during lithiation. In this work, we present two methods for the chemical modification of silicon …
View article: Structure, Morphology, and Electrochemical Properties of Carbon-Coated Lithium-Manganese Orthosilicate with Sucrose as a Carbon Source
Structure, Morphology, and Electrochemical Properties of Carbon-Coated Lithium-Manganese Orthosilicate with Sucrose as a Carbon Source Open
Lithium-manganese orthosilicate powders were synthesized via a modified solvothermal method. Three different weight ratios of sucrose used as a carbon source were investigated for finding an effective carbon coating process. Synthesized ma…
View article: Toward the synthesis, fluorination and application of N–graphyne
Toward the synthesis, fluorination and application of N–graphyne Open
The appearance of PTFE-like nanochains in the structure of fluorinated N–graphyne strongly influences both electrochemical and biological properties.
View article: Single Step, Electrochemical Preparation of Copper-Based Positive Electrode for Lithium Primary Cells
Single Step, Electrochemical Preparation of Copper-Based Positive Electrode for Lithium Primary Cells Open
Lithium primary cells are commonly used in applications where high energy density and low self-discharge are the most important factors. This include small coin cells for electronics, power backup batteries for complementary metal-oxide-se…
View article: Comparative Physicochemical and Electrochemical Characterization of the Structure and Composition of Thin Pd Binary and Ternary Codeposits with Pt, Ru, and Rh
Comparative Physicochemical and Electrochemical Characterization of the Structure and Composition of Thin Pd Binary and Ternary Codeposits with Pt, Ru, and Rh Open
Pd-Ru, Pd-Rh, Pd-Pt-Ru, and Pd-Rh-Ru electrodes were prepared as thin layers by potentiostatic codeposition or chemical co-precipitation of metals from baths containing mixtures of chloride salts. The formation of substitutional solid solu…
View article: The effect of compressive stresses on a silicon electrode’s cycle life in a Li-ion battery
The effect of compressive stresses on a silicon electrode’s cycle life in a Li-ion battery Open
We have investigated the effect of applying external pressure during cell preparation and its further electrochemical behavior as a Li-ion battery electrode.
View article: Electrochemical properties of lithium–titanium oxide, modified with Ag–Cu particles, as a negative electrode for lithium-ion batteries
Electrochemical properties of lithium–titanium oxide, modified with Ag–Cu particles, as a negative electrode for lithium-ion batteries Open
Composites of Li4Ti5O12 with Ag–Cu particles were successfully synthesized by solid-state reaction followed by thermal decomposition of the metal substrates.