article thumbnail

HZB team devises new Ti4O7 cathode material for Lithium-sulfur batteries

Green Car Congress

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.

article thumbnail

USC team uses mixed conduction membranes to suppress polysulfide shuttle in Li-S batteries

Green Car Congress

One of the major issues hobbling the commercialization of high energy-density lithium-sulfur batteries is the “polysulfide shuttle”—the shuttling of polysulfide ions between the cathode and anode. Top: Schematic of the electrochemical processes in a generic lithium-sulfur battery. Narayan and Moy (2017).

article thumbnail

Researchers show simple addition of quartz powder to Li-S electrolyte slows capacity loss

Green Car Congress

Materials researchers of the Paul Scherrer Institute PSI in Switzerland have, in collaboration with the Université Grenoble Alpes (France), developed a simple method that can improve the performance of lithium-sulfur batteries by 25-30%. For example, the lithium-sulfur battery rapidly loses capacity with repeated charging.

article thumbnail

Berkeley Lab team designs active polyelectrolyte binder that allows for a doubling in capacity of conventional Li-sulfur battery

Green Car Congress

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.

article thumbnail

The BMW Group and Solid Power partner to drive solid-state battery adoption in EVs

Green Car Congress

In September 2017, A123 Systems announced its investment in Solid Power as part of A123’s plan to couple strategic technology investments to its own substantial R&D efforts in order to develop a world-class portfolio of battery technology. We’re looking forward to working with BMW on pushing the limits on developments around xEV batteries.

BMW 170
article thumbnail

HKG and Pininfarina introduce two more microturbine range extended EVs; graphene-enhanced LTO batteries

Green Car Congress

At Auto Shanghai 2017, China-based Hybrid Kinetic Group (HK), with its partner Pininfarina, introduced two more microturbine range-extended electric vehicles: the five-seat K550 and 7-seat K750 SUVs. HK Group is also developing graphene lithium sulfur batteries.

article thumbnail

Researchers suggest approach for boosting Li-S performance; conversion of Li2S to sulfur without polysulfides

Green Car Congress

Lithium-sulfur batteries are one of the most promising alternatives for next-generation high-energy-density batteries; however, one of the main obstacles to widespread commercialization that still needs to be addressed is the polysulfide shuttle mechanism between the two electrodes. 2017.01.112.