Baua Electric
APRIL 12, 2024
Given India’s dependence on 100% imported lithium-ion cells for electric vehicle batteries, there exists a compelling drive to cultivate indigenous cell and battery manufacturing capacities to meet the burgeoning demands. Zeta Energy is the world’s leading developer of lithium-sulfur battery chemistry, materials and cell technology.
Green Car Congress
DECEMBER 14, 2019
A team at the University of Manchester (UK) has developed a doped graphene cathode for highly stable lithium-sulfur batteries. In an open access paper in the Nature journal Communications Chemistry , they report 100% charge capacity of Li-S batteries using the cathode material with 500 charge/discharge cycles at 0.5
Green Car Congress
JANUARY 19, 2018
A team of researchers led by scientists at the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have designed an active polyelectrolyte binder (PEB) that actively regulates key ion transport processes within a lithium-sulfur battery, and have also shown how it functions on a molecular level.
Green Car Congress
JANUARY 9, 2013
Electrochemical performance of sulfur–TiO 2 yolk–shell nanostructures. (a) a) Charge/discharge capacity and Coulombic efficiency over 1,000 cycles at 0.5 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.
Green Car Congress
FEBRUARY 26, 2010
A great deal of research has gone into developing silicon as an anode material, including earlier work by Cui and his colleagues, due to its high theoretical charge capacity (4,200 mAh g -1 —more than 10 times that of graphite anodes and much larger than various nitride and oxide materials) and low discharge potential. Click to enlarge.
Green Car Congress
JULY 27, 2014
(a) Charge and discharge voltage curves in repeated charge/discharge cycles at 45 mA g ?1. b) Charge and discharge voltage curves at various current densities (13.5–1080 V)—about on par with Li-sulfur’s very high theoretical energy density of ~2,600 Wh kg -1 (based on lithium-sulfur redox couple, e.g., earlier post ).
Green Car Congress
JULY 2, 2011
The PEG and graphene coating layers are important to accommodating volume expansion of the coated sulfur particles during discharge, trapping soluble polysulfide intermediates, and rendering the sulfur particles electrically conducting. Electrochemical characterization of graphene-sulfur composites. (a)
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