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Synthesis, properties and reactivity of BCl2 aza-BODIPY complexes and salts of the aza-dipyrrinato scaffold
(Royal Society of Chemistry, 2020-02-25)
The synthesis and characterisation of the BCl2-chelated complexes of both archetypal aza-dipyrrin sub- types are presented. A stepwise halogen exchange, leading to a mixed-halide Cl–B–F intermediate, is implicated in the ...
Isothermal Calorimetry Evaluation of Metallurgical Silicon as a Negative Electrode Material for Li-Ion Batteries
(The Electrochemical Society, 2021-03-01)
The structural evolution of Si during lithiation and delithiation is uniquely dependent on the cycling conditions and can show either reversible or path dependent behavior. In this paper, metallurgical Si (large crystalline ...
Si85Fe15Ox Alloy Anode Materials with High Thermal Stability for Lithium Ion Batteries
(The Electrochemical Society, 2021-11-11)
The synthesis, microstructure and electrochemical properties of ball milled Si85Fe15Ox alloys with different oxygen contents are investigated. These materials combine the features of Si-M alloys (low irreversible capacity) ...
All-Dry Synthesis of Single Crystal NMC Cathode Materials for Li-Ion Batteries
(The Electrochemical Society, 2020-10-08)
Single crystal (SC) cathode materials with a layered structure are considered to be state-of-the-art for lithium ion batteries. However, their production involves many steps and can produce large amounts of wastewater. ...
Preparation of Low Surface Area Si-Alloy Anodes for Li-Ion Cells by Ball Milling
(The Electrochemical Society, 2022-06-22)
A new and simple 2-step milling technique is utilized to produce Si–Ti–N alloys with significantly reduced surface area compared to conventional ball milling, while still attaining a full amorphous active Si phase. Surface ...
Engineered Particle Synthesis by Dry Particle Microgranulation
(Elsevier Inc, 2020-04-14)
Highlights
* A method of making monodisperse engineered ∼10-μm particles is introduced
* Core-shell, spherical, and tetrahedral particles demonstrated at ∼100% yield
* Spherical layered oxides for Li-ion batteries ...
Inorganic Compounds as Binders for Si-Alloy Anodes
(The Electrochemical Society, 2021-02-01)
The inorganic compounds, lithium polysilicate (Li2Si5O11), sodium polyphosphate ((NaPO3)n), and lithium phosphate monobasic (H2LiPO4) were investigated as the sole binders in Si-alloy and graphite electrodes for Li cells. ...
LiF as an Alloy Component or Slurry Additive in Si-Alloy Anodes
(The Electrochemical Society, 2020-12-10)
Electrolyte additives are commonly used to improve electrochemical performance in Li-ion cells. The use of solids as electrolyte additives is far less common. Here, Si40'(FeSi2)(60−x)'(LiF)(x)' (' = volume percent) alloys ...
Polyaniline Electrode Activation in Li Cells
(The Electrochemical Society, 2020-04-17)
Polyaniline (PANi) can be used as an electroactive organic cathode material in Li-cells with multiple redox states. The theoretical specific capacity of the emeraldine base (PEB) is 150 mAh g−1. In this study, we show how ...
Electrochemistry and Thermal Behavior of SiOx Made by Reactive Gas Milling
(The Electrochemical Society, 2020-06-30)
SiOx with various oxygen contents were synthesized from Si powder by a simple room-temperature ball milling method by controlling the air exposure time during milling. The resulting SiOx consists of nano and amorphous Si ...