Posts Tagged: Lithium Sulfur

European researchers: Our new Li-sulfur battery is more energy-dense, cheaper and safer

EU-funded researchers in the LISSEN (Lithium Sulfur Superbattery Exploiting Nanotechnology) project have developed a new lithium-sulfur battery that uses lithiated silicon as the anode and a nanostructured sulfur-carbon composite as the cathode. The team says its battery offers an energy density at least three times higher than that of current lithium battery technology, as well… Read more »

European ALISE collaboration aims to commercialize lithium-sulfur batteries

A coalition of European manufacturers and research institutes has launched ALISE (Advanced Lithium Sulfur battery for EVs), a collaborative effort to develop and commercialize lithium-sulfur technology. The objective of the 7-million-Euro ($7.6 million) project is to achieve a stable 500 Wh/kg Li-S cell by 2019. The final deliverable of the ALISE project will be a… Read more »

Researchers discover new high-performance cathode material for lithium-sulfur batteries

Lithium-sulfur batteries are one of the hottest topics in the battery field today, as they could theoretically offer energy density up to four times higher than that of lithium-ion batteries. However, one of several challenges to be overcome is finding cathode materials that demonstrate long-term stability. An international team of researchers from Drexel University and… Read more »

Researchers announce significant improvement in Li-S battery performance and cycle life

A team from the University of Waterloo in Canada and BASF has developed a way to stabilize cathodes in lithium-sulfur batteries, significantly improving performance and cycle life. Li-S batteries offer high theoretical energy density and low cost, due to the high natural abundance of sulfur. However, the insulating nature of sulfur and lithium sulfides requires… Read more »

Graphene wrapper enhances performance of lithium-sulfur batteries

Lithium-sulfur batteries are of great interest, as they could offer specific energy densities far greater than those of current lithium-ion chemistries. However, current designs are plagued by low efficiency and capacity degradation. A team of researchers from the University of Cambridge and the Beijing Institute of Technology has devised a three-dimensional sandwich-type graphene sheet-sulfur/carbon composite… Read more »

OXIS Energy achieves specific energy of 300 Wh/kg with lithium-sulfur cell

OXIS has developed its largest lithium-sulfur cell to date, achieving specific energy in excess of 300 Wh/kg. The company has also increased cell capacity to 25 Ah, a twelve-fold improvement in 18 months. OXIS predicts that it will achieve a cell capacity of 33 Ah by mid-2015. The OXIS scientific team expects to achieve its… Read more »

Fraunhofer Institute presents November workshop on lithium-sulfur batteries

The Fraunhofer Institute will hold its third annual workshop on lithium-sulfur batteries in Dresden, Germany, on November 12 and 13. Lithium-sulfur is a leading contender for the battery chemistry of the future, and Fraunhofer believes that novel materials such as nanostructured carbon/sulfur composite cathodes, solid electrolytes and alloy-based anodes will significantly enhance performance. Dr Oliver… Read more »

GM researchers develop improved Li-Sulfur cathode material

A GM R&D team has developed a way to improve the cycling stability and Coulombic efficiency of lithium-sulfur (Li/S) batteries. The new paper, Polydopamine-Coated, Nitrogen-Doped, Hollow Carbon-Sulfur Double-Layered Core-Shell Structure for Improving Lithium-Sulfur Batteries, appears in the ACS journal Nano Letters. Lithium-sulfur chemistry theoretically promises impressive energy capacity, but practical Li-S batteries have been hindered… Read more »

OXIS and Multi Source Power work together to develop marine lithium-sulfur batteries

UK-based battery maker OXIS and Multi Source Power (MSP), a manufacturer of hybrid and electric marine drivetrains, have formed a partnership to develop lithium-sulfur batteries for marine applications. The new product will be part of the Ghost Power Brand, and is scheduled for launch in the spring of 2015. It will be a versatile battery… Read more »

New anode extends the life of lithium-sulfur batteries

Many researchers are interested in lithium-sulfur batteries, because they can offer up to four times the energy density of lithium-ion chemistries. However, current lithium-sulfur batteries have a much shorter lifespan. In a paper published this week in Nature Communications, a team from the Department of Energy’s Pacific Northwest National Laboratory (PNNL) described a “hybrid” anode… Read more »