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Li–S batteries: Firing for compactness
Nature Energy, 2017Conventional Li–S batteries have a non-compact cathode structure containing low areal loading of active materials. Now, a strategy of burning Li foils in a CS2 vapour is presented, which leads to the formation of highly compact Li2S nanoparticles as a lithiated sulfur cathode, offering promising battery performance.
Yanguang Li, Fengjiao Chen
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Engineering Cooperative Catalysis in Li–S Batteries
Advanced Energy Materials, 2023AbstractLithium–sulfur (Li–S) batteries are regarded to be one of the most promising next‐generation batteries owing to the merits of high theoretical capacity and low cost. However, the aprotic S electrochemistry is hampered by the shuttling effect and sluggish conversion of soluble lithium polysulfides (LiPSs).
Jinlei Qin +3 more
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Outline of Li–S Battery Project
2021In this project, Li–S batteries have been investigated by a team comprising 12 principal investigators. In particular, we focused on developing Li–S batteries with sparingly solvating electrolytes for cathode active materials. Prior to the start of our project, the dissolution of the discharge products of sulfur (lithium polysulfides: Li2Sx, x = 8 ~ 2)
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Li–S Battery Using Li2S Cathode
2021A major drawback of Li–S cells is the dendritic growth of Li metal and the formation of dead Li that occurs in cells during the charging/discharging processes, which causes the loss of electrochemically active Li, the depletion of the electrolyte, and the internal short circuit of the cell, and therefore prevents the safe use and long cycling-life of ...
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Semi-Solid Li-S Battery Electrolytes
ECS Meeting Abstracts, 2019The urge for electrochemical energy storage devices with high gravimetric and volumetric energy density is imminent and the lithium−sulfur (Li-S) battery has been poised as a major next generation battery concept candidate. While it has a (very) high theoretical energy density, low cost and non-toxicity of starting materials,[1] its practical ...
Adriana Navarro-Suárez +1 more
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Recent Advances of Freestanding Cathodes for Li‐S Batteries
Chemistry – An Asian Journal, 2021AbstractLithium‐sulfur batteries (LSBs) with high energy density and low cost have been recognized as one of the most promising next‐generation energy storage systems. Although it has taken decades of development, the practical application of LSBs has been hindered by several inherent obstacles, particularly the severe shuttle effect and sluggish ...
Peng, Zhang +4 more
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New electrolyte improves Li-S batteries
C&EN Global Enterprise, 2018Lithium-sulfur batteries can pack up to five times as much energy by weight as some lithium-ion batteries, in principle. In practice, experimental versions of the batteries have fallen short of expectations because of unwanted chemical reactions between the electrodes and the electrolyte solution that alter the electrodes, thereby reducing energy ...
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Li–S batteries: simple approaches for superior performance
Energy & Environmental Science, 2013Although promising improvements have been made in the field of Li–S rechargeable batteries, they are still far from reaching the market place due to several drawbacks. To combat the solubility of polysulphides, confinement approaches aiming to trap sulphur within the cathode side have been pursued, but success has been limited.
Demir-Cakan, R. +5 more
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Equivalent Circuit Modelling of Li-S Batteries
ECS Transactions, 2021The presented article describes a Multi-Scale Multi-Domain model of a Li-S battery using an equivalent circuit model consisting of R-C pairs. The parameters of the equivalent circuit model were obtained by fitting experimentally measured results from electrochemical impedance spectroscopy at various states of charge.
Martin Mačák +3 more
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Insight into Sulfur Reactions in Li–S Batteries
ACS Applied Materials & Interfaces, 2014Understanding and controlling the sulfur reduction species (Li2Sx, 1 ≤ x ≤ 8) under realistic battery conditions are essential for the development of advanced practical Li-S cells that can reach their full theoretical capacity. However, it has been a great challenge to probe the sulfur reduction intermediates and products because of the lack of methods.
Rui, Xu +10 more
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