Results 51 to 60 of about 5,291 (252)

Glyoxylic‐Acetal‐Based Electrolytes for Sodium‐Ion Batteries and Sodium‐Ion Capacitors

open access: yesChemSusChem, 2023
AbstractA comprehensive study on the properties and implementation of glyoxylic‐acetals in sodium‐ion energy storage systems is presented. Electrolytes containing 1,1,2,2‐tetramethoxyethane (tetramethoxyglyoxal, TMG), 1,1,2,2‐tetraethoxyethane (tetraethoxyglyoxal, TEG) and a mixture of the latter with propylene carbonate (PC) exhibit increased thermal ...
Christian Leibing   +5 more
openaire   +2 more sources

Interplay Between Phase Evolution, Fe Migration, and Oxygen Redox in O3‐Type NaxFeyMn1−yO2 Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Why do Na‐ion battery cathodes, that are compositionally closely related, follow different structural paths during battery operation? This work shows how Fe content controls when iron atoms migrate from their original sites. Early migration locks the layers and blocks key phase transitions, whereas delayed migration permits fuller structural ...
Morten Johansen   +4 more
wiley   +1 more source

Enhanced electrochemical production and facile modification of graphite oxide for cost-effective sodium ion battery anodes

open access: yes, 2021
Sodium-ion batteries (SIBs) are emerging as an inexpensive and more sustainable alternative to lithium-ion batteries in the energy storage market. To advance their commercialization, one major scientific undertaking is to develop low-cost, reliable anode
Batmunkh, Munkhbayar   +9 more
core   +1 more source

Interphases in Sodium‐Ion Batteries

open access: yesAdvanced Energy Materials, 2018
AbstractSodium‐ion batteries (SIBs) as economical, high energy alternatives to lithium‐ion batteries (LIBs) have received significant attention for large‐scale energy storage in the last few years. While the efforts of developing SIBs have benefited from the knowledge learned in LIBs, thanks to the apparent proximity between Na‐ions and Li‐ions, the ...
Junhua Song   +4 more
openaire   +2 more sources

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini   +7 more
wiley   +1 more source

Fire‐Retardant, Stable‐Cycling and High‐Safety Sodium Ion Battery

open access: yes, 2021
The safety of energy storage equipment has always been a stumbling block to the development of battery, and sodium ion battery is no exception. However, as an ultimate solution, the use of non-flammable electrolyte is susceptible to the side effects, and
Zhuo Yang   +23 more
core   +2 more sources

Solid-State Polymer Electrolytes for Sodium Ion Battery Technology

open access: yes, 2022
This study addressed the gaps in electrolyte materials in sodium-ion battery systems by introducing three different solid-state polymer electrolytes based on organic ionic plastic crystals, ionic block copolymers and mixed co-cations.
Sneha Subhas Malunavar (16752258)
core   +1 more source

Electro‐Steric Ion Confinement in Polyelectrolyte Networks for Robust Nonvolatile Artificial Synapse

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte stoichiometry governs ion transport and retention in electrolyte‐gated synaptic transistors. A PSS‐rich network creates electro‐steric ion confinement that suppresses ion back‐diffusion and stabilizes channel doping, enabling robust nonvolatile synaptic memory, linear weight updates, and low‐energy operation.
Donghwa Lee   +9 more
wiley   +1 more source

Sb-Si Alloys and Multilayers for Sodium Ion Battery Anodes

open access: yes, 2018
This work describes the synthesis and testing of thin film silicon anodes for use in sodium ion batteries. Antimony (Sb)-rich phases show high capacities and negligible loss of cycling stability over 200 cycles. This work suggests that the exploration of
W. Peter, Kalisvaart   +3 more
core   +1 more source

Simulation based Energy Performance Analysis and Economic Assessment Na/NiCl2 Batteries compared to Li-Ion Batteries Operating in a PV Home Storage System

open access: yes, 2021
In this work, a simplified thermo-electric model of a Na/NiCl2 battery was developed in Modelica/Dymola. The phenomenological approach uses experimental data to set the main battery module parameters and process characteristics such as heat capacity ...
Richter, Maria   +2 more
core   +1 more source

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