Green Car Congress
MAY 22, 2017
Researchers at the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), with colleagues from Humboldt-Universität zu Berlin and University of Potsdam, have fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti 4 O 7 ) for use as a cathode material in lithium-sulfur batteries. Credit: HZB.
Green Car Congress
FEBRUARY 15, 2013
a) Specific capacities of the PVP modified sulfur cathode at C/5, C/2 and 1C cycling rates. (b) b) Comparison of cycling performance at C/2 with and without the PVP modification. Lithium sulfur batteries are of great interest due to their high specific energy and relatively low cost (e.g., Credit: ACS, Zheng et al.
Green Car Congress
MARCH 28, 2022
Lithium-sulfur batteries are prospects for future batteries as they are made from cheaper and more environmentally friendly materials than lithium-ion batteries. A comprehensive description of electrochemical processes in the positive electrode of lithium-sulfur batteries is crucial for the utilization of active material.
Green Car Congress
NOVEMBER 5, 2018
Lithium-sulfur (Li-S) batteries, despite their high theoretical specific energy, face practical challenges including polysulfide shuttling and low cell-level energy density. The surface-mediated polysulfide redox behavior results in a much higher exchange current in comparison with MgO and carbon. 2018.09.024.
Green Car Congress
JANUARY 9, 2013
(b) Capacity retention of sulfur–TiO 2 yolk–shell nanostructures cycled at 0.5 C, in comparison with bare sulfur and sulfur–TiO 2 core–shell nanoparticles. The authors say that, to the best of their knowledge, this is the first time that a lithium–sulfur battery with this level of performance has been described.
Green Car Congress
JUNE 1, 2015
Stanford University scientists have created a new ultrahigh surface area three-dimensional porous graphitic carbon material that significantly boosts the performance of energy-storage technologies. c) Comparison of areal capacity and cycling life between HPG carbon/ sulfur electrodes and recently reported high-performance sulfur electrodes.
Green Car Congress
FEBRUARY 26, 2010
Researchers led by Dr. Yi Cui at Stanford University have demonstrated a new proof-of-concept lithium metal-free battery with high specific energy consisting of a lithium sulfide (Li 2 S)/mesoporous carbon composite cathode and a silicon (Si) nanowire anode. Credit: ACS, Yang et al. Click to enlarge. Yang et al.
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