Drexel team proposes TiO/CNF nanofiber mats to improve Lithium-Sulfur battery performance

Green Car Congress

Furthermore, the free-standing TiO/CNF-S cathodes developed with rapid sulfur melt infiltration (~5 sec) eradicate the need of inactive elements such as binders, additional current collectors (Al-foil) and additives. Batteries Li-Sulfur

Researchers develop MOF membrane coating to prolong lithium–sulfur battery life

Green Car Congress

Although rechargeable lithiumsulfur (Li–S) batteries promise high energy density storage—particularly attractive for electric vehicle applications—the technology is currently limited by the shuttling polysulfides between the battery’s electrodes. Batteries Li-Sulfur

RPI team develops method to use paper-making by-product in lithium-sulfur batteries

Green Car Congress

Researchers at Rensselaer Polytechnic Institute (RPI) have now developed a method to use this cheap and abundant waste byproduct to build a components for lithium-sulfur batteries. Batteries Li-Sulfur

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

Green Car Congress

The lithium-sulfur battery cathode does not consist of heavy metals, but instead of sulfur—an economical and widely available material. Batteries Li-Sulfur

Advances In Lithium-Sulfur Batteries Offer Promise For Electric Cars

Green Car Reports

Commercial uses of the element sulfur date back centuries, but it may be the key to a new generation of batteries with high theoretical energy density and relatively low cost. The principles of a lithium-sulfur battery have been known for decades, but practical solutions to the chemical challenges inherent in the cells remain to be found.

Lithium-Sulfur Battery Lab Tests Show High Energy Density

Green Car Reports

The month wouldn''t be complete without another battery technology breakthrough, and this time it''s the turn of lithium-sulfur technology. Researchers at the US Department of Energy’s Lawrence Berkeley National Laboratory are experimenting with a lithium-sulfur battery design with twice the specific energy of lithium-ion batteries, and a

Progress with Lithium-sulfur battery technology

Green Car Congress

Researchers from Hanyang University in Korea and the University of Rome Sapienza (Italy) have developed a lithium-sulfur battery employing a high-performance mesoporous hard carbon spherules-sulfur cathode and a stable, highly conducting electrolyte. The team suggests that the results may substantially contribute to the progress of the lithium-sulfur battery technology. 2012), An Advanced Lithium-Sulfur Battery.

Cornell spin-off lithium-sulfur battery company NOHMs to locate in Lexington, KY

Green Car Congress

Kentucky Governor Steve Beshear announced that start-up lithium-sulfur battery company NOHMs (Nano Organic Hybrid Materials) Technologies Inc. Founded in October 2010, NOHMs Technologies has developed a battery that is based on lithium-sulfur chemistry.

ORNL, Solid Power sign exclusive license for lithium-sulfur battery technology

Green Car Congress

have signed an exclusive agreement licensing lithium-sulfur materials for next-generation batteries. Solid Power licensed a portfolio of ORNL patents relating to lithium-sulfur compositions that will enable development of more energy-dense batteries. The battery was built with a new Oak Ridge-designed sulfur-rich cathode and a lithium anode with a solid electrolyte material, also developed at ORNL. Batteries Li-Sulfur

Lithium-Sulfur Batteries, Tesla P85D Vs Dodge Hellcat Rematch, Fossil-Fuel Agitprop: Today's Car News

Green Car Reports

Today on Green Car Reports: lithium-sulfur batteries hold promise for electric cars, a Dodge Challenger Hellcat driver recovers from his loss to a Tesla Model S P85D, and a new video compares fossil fuels to your girlfriend. See why advances in lithium-sulfur batteries could offer promise for electric cars

USC Viterbi team integrating silicon anode and sulfur-based cathode for Lithium-sulfur battery with low fabrication cost

Green Car Congress

USC Viterbi School of Engineering professor Chongwu Zhou and his research team have developed a silicon nanoparticle anode and a sulfur-based cathode with low fabrication cost and high electrode performance for rechargeable lithium-sulfur batteries. sulfur (Li?S)

Graphene oxide-sulfur (GO-S) nanocomposite cathodes for high-capacity, stable cycling lithium sulfur batteries

Green Car Congress

The team used a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. In addition, sulfur is also inexpensive, abundant, and nontoxic. note in their paper: The high electrical resistivity of elemental sulfur; and.

ORNL team demonstrates high-performance lithium-sulfur battery with nitrogen-doped carbon/sulfur cathode and ionic liquid electrolyte

Green Car Congress

Researchers at Oak Ridge National Laboratory have developed a high-performance lithium-sulfur battery using. nitrogen-doped mesoporous carbon (NC) and sulfur to prepare a composite cathode and an ionic-liquid electrolyte of 0.5?m m lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) in methylpropylpyrrolidinium bis(trifluoromethane sulfonyl)imide ([MPPY][TFSI]). 2012), LithiumSulfur Batteries Based on Nitrogen-Doped Carbon and an Ionic-Liquid Electrolyte.

DOE EERE awards $5M to Penn State-led project to develop Lithium-sulfur battery technology

Green Car Congress

The UA Department of Energy’s Office of Energy Efficiency and Renewable Energy (DOE EERE) has awarded a $5-million, three-year grant to a project led by Penn State to develop a lithium-sulfur (Li-S) battery with a volumetric energy capacity of 600 Wh/liter. The research team plans to include a nanocomposite sulfur cathode and lithium-rich composite anode material.

U Texas Austin team finds P2S5 electrolyte additive enables use of Li2S bulk particles for high-capacity cathodes in lithium-sulfur batteries; ~800 mAh/g

Green Car Congress

In a paper published in the ACS Journal of Physical Chemistry Letters , the team suggested that this strategy is both of significance for the safe and effective use of Li 2 S as a cathode material and as a promising step toward the low-cost fabrication of metallic-lithium-free Li?S While Lithium-sulfur (Li-S) batteries offer the promise of a high theoretical energy of ?2500 Researchers at the University of Texas at Austin, led by Prof.

Sion Power Receives $800K DOE Grant to Enhance Lithium Sulfur Batteries

Green Car Congress

A lithium-sulfur cell. Sion Power Corporation has received a three-year, $800,000 research grant from the US Department of Energy (DOE) to support Sion’s ongoing work to develop a new class of electrolytes used in lithium sulfur (Li-S) batteries for electric vehicle (EV) applications. The project objective is to increase performance of very-high-energy lithium metal anodes used in rechargeable battery systems. Lithium-sulfur batteries.

Stanford team develops method enabling use of lithium sulfide as cathode material for high specific energy batteries; a simpler approach rivaling lithium sulfur

Green Car Congress

A team of Researchers at Stanford University and SLAC National Accelerator Laboratory, led by Stanford’s Dr. Yi Cui, has developed a simple and scalable approach to utilizing Li 2 S (lithium sulfide) as the cathode material for rechargeable lithium-ion batteries with high specific energy.

BASF and Sion Power to Collaborate on Lithium Sulfur Battery Technology; Targeting EV Market

Green Car Congress

Sion Power Corporation and BASF SE have signed a Joint Development Agreement (JDA) to accelerate the commercialization of Sion Power’s proprietary lithium-sulfur (Li-S) battery technology for the electric vehicle (EV) market and other high-energy applications.

OXIS Energy hits 425 Wh/kg with Li-S cell,expects to achieve 450 Wh/kg by end of year

Green Car Congress

OXIS Energy UK has achieved 425 Wh/kg on a High Energy 16Ah pouch Lithium Sulfur (Li-S) cell design for HAPS applications (High Altitude Pseudo Satellites) and expects to achieve 450Wh/kg at cell level by the end of 2018. Batteries Li-Sulfur

2018 125

Waterloo researchers use MgB2 as Li-S battery cathode host to improve performance

Green Car Congress

Lithium-sulfur (Li-S) batteries, despite their high theoretical specific energy, face practical challenges including polysulfide shuttling and low cell-level energy density. Batteries Li-Sulfur

2018 128

SJTU team develops fumed alumina gel-like electrolyte to boost performance of Li-S batteries

Green Car Congress

Researchers at Shanghai Jiao Tong University have developed a gel-like electrolyte induced by fumed alumina for dendrite-free Li deposition, lower over-potential and better cycle stability in lithium-sulfur batteries. In addition, the gel-like electrolyte endows the cell with a potential advantage as to safety issues such as liquid leakage and short-circuit induced by lithium dendrites. Batteries Li-Sulfur

2018 85

Graphene microsheet/sulfur cathodes for Li-S batteries deliver long-term cyclability and high coulombic efficiency

Green Car Congress

A team in China has used graphene microsheets (GMs)—prepared from microcrystalline graphite minerals by an electrochemical & mechanical approach—as a special conductive support for sulfur for the cathode of a lithium-sulfur battery. Batteries Graphene Li-Sulfur

2017 83

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. Batteries Li-Sulfur

2017 93

EU launches $7.6M ALISE to develop Li-sulfur batteries for plug-ins; targeting stable 500 Wh/kg cell by 2019

Green Car Congress

The largest single funding award to the 15 participating partners goes to UK-based Li-S battery company OXIS Energy (€953,025 / US$1,050,000), which has already achieved 325 Wh/kg with its Li-sulfur technology. Batteries Electric (Battery) Li-Sulfur

2015 133

Lux projects beyond Li-ion batteries to be worth $10B in 2030

Green Car Congress

Next-generation batteries will see explosive growth after 2030: Lithium-sulfur will jump from $6 billion in 2030 to $29 billion in 2035, while solid-state batteries will climb from $3 billion to $42 billion over the same period.

2015 88

Sulfur-loaded carbon aerogel as cathode for Li-S battery offers improved cyclic stability

Green Car Congress

Researchers at South China Normal University in Guangzhou have developed a novel composite of sulfur loaded in micropore-rich carbon aerogel (CA-S) for use as a cathode in Li-sulfur batteries. These issues limit the practical application of lithium-sulfur battery.

2016 99

Tsinghua team explores strategies to reduce Li-S battery self-discharge

Green Car Congress

Researchers at Tsinghua University (China) report in a paper in ChemSusChem on their use of both lithium anode passivation and polysulfide anion diffusion suppression strategies to reduce self-discharge of the lithiumsulfur cell. The self-discharge of a lithiumsulfur cell decreases the shelf-life of the battery and is one of the bottlenecks that hinders its practical applications.

2015 72

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%. Batteries Li-Sulfur

2017 78

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

Green Car Congress

The new polymer binder allows a doubling in capacity compared to a conventional lithium-sulfur battery, even after more than 100 charge cycles at high current densities. In all cases, the composite sulfur electrode was cast onto an aluminum current collector. Batteries Li-Sulfu

2018 93

Fraunhofer holding 3rd annual workshop on Li-sulfur batteries in November

Green Car Congress

Fraunhofer IWS in Dresden, Germany will hold its 3rd annual workshop on Lithium-sulfur batteries from 12-13 November 2014. Fraunhofer says that Lithium-sulfur batteries are the most promising choice for future energy storage systems, with novel materials such as nanostructured carbon/sulfur composite cathodes, solid electrolytes and alloy-based anodes expected to enhance significantly the cell’s performance.

2014 78

Nanobox strategy to improve performance of Li-S batteries

Green Car Congress

Researchers at Changchun University of Science and Technology in China have developed a nanobox strategy to improve the performance of lithium-sulfur batteries. 1 —five times than the commercial Lithium-ion batteries—and practical energy densities of beyond 500 Wh kg ?1. The system typically uses a lithium-metal anode and sulfur cathode. the CoS@PPy nanoboxes loading 60 wt% sulfur exhibit higher specific capability and good cycling stability.

2018 79

Oxis Energy polymer Li-S pouch cell surpasses 450 cycles

Green Car Congress

Oxis Energy, a UK-based developer of lithium-sulfur batteries, reported via Twitter that one of its standard polymer Li-S pouch cells surpassed 450 cycles this week. A lithium-sulfur couple has theoretical specific energy in excess of 2,700Wh/kg.

Li-S company Sion Power raises $ 50M

Green Car Congress

Lithium-sulfur battery company Sion Power recently reported to the US Securities and Exchange Commission (SEC) that it raised $50 million in equity sold to undisclosed investors. Lithium-Sulfur Batteries. Lithium-sulfur battery.

2011 104

New Li-S battery shows cycle performance comparable to that of Li-ion batteries along with more than double the energy density

Green Car Congress

A team of researchers in South Korea and Italy has demonstrated a highly reliable lithiumsulfur battery showing cycle performance comparable to that of commercially available lithium-ion batteries while offering more than double the energy density. Batteries Li-Sulfur

2015 146

New ionic liquid-based electrolyte with binary lithium salts improves Li-S battery performance

Green Car Congress

The new electrolyte contains N-methoxyethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)-imide (Pyr1,2O1TFSI) and tri(ethylene glycol)dimethyl ether (TEGDME) in mass ratio of 7:3, with a lithium bis(trifluoromethanesulfonyl)imide (LiTFSI, 0.84 mol kg −1 as the binary lithium salt.

2015 108

Fraunhofer researchers report significant extension to Li-S cycle life with silicon anodes and CNT-sulfur composite cathodes

Green Car Congress

Lithium-sulfur batteries are of great interest for electromobility applications, among others, due to their high specific energy and relatively low cost, but are challenged by significant capacity decay over cycling. Scientists at the Fraunhofer Institute for Material and Beam Technology IWS in Dresden, Germany say they have developed new cathode and anode designs for lithium-sulfur batteries that can increase the cycle life by a factor of seven.

2013 85

Li-S battery company OXIS Energy receives 2014 European Frost & Sullivan Award for Technology Innovation

Green Car Congress

Consultancy Frost &Sullivan has selected UK-based lithium-sulfur battery developer OXIS Energy to receive the 2014 European Frost & Sullivan Award for Technology Innovation. OXIS Energy has developed a lithium-sulfur battery technology that resolves some of the issues in the batteries currently used in military, automotive, and solar energy storage applications. Additionally, OXIS Energy’s lithium-sulfur battery has long lifecycles. Batteries Li-Sulfur

2014 74

Rice University team develops new nanocomposite material for Li-sulfur battery cathode with high cycling stability

Green Car Congress

Researchers at Rice University led by Dr. James Tour have developed a hierarchical nanocomposite material of graphene nanoribbons combined with polyaniline and sulfur (Sulfur-PANI-GNRs, SPG) using an inexpensive, simple method. Schematic illustration of the synthesis of SPGs.

2014 108

UT Dallas researchers use 2D MoS2 as protective layer for Li-metal anodes in Li-S batteries; extended cycle life

Green Car Congress

For a Li–S full-cell configuration, using the MoS 2 -coated Li as anode and a 3D carbon nanotube–sulfur cathode, they reported obtain a specific energy density of ~589?Wh?kg However, sulfur is a poor electrical conductor and can become unstable over just several charge-and-recharge cycles.

China-US team uses graphene composite separator to suppress polysulfide shuttling in Li-S batteries

Green Car Congress

A team of researchers from institutions in China and the US report the design of a negatively charged graphene composite separator for the effective suppression of the polysulfide shuttling effect in Li-sulfur batteries. Batteries Graphene Li-Sulfur

2018 96

UT Austin team uses polypyrrole-MnO2 coaxial nanotubes as sulfur host to improve performance of Li?sulfur battery

Green Car Congress

Researchers at the University of Texas at Austin have developed a novel electrode for lithium-sulfur batteries that improves cyclic stability and rate capability significantly. In this work, we designed PPy-MnO 2 coaxial nanotubes to accommodate sulfur. …

2016 112

Purdue engineers use upcycled plastic to boost performance and lifespan of Li-S batteries

Green Car Congress

Purdue engineers have used upcycled low-density polyethylene (LDPE) plastic to boost the lifespan of lithium-sulfur batteries. When a PSC layer was utilized as an interlayer in lithiumsulfur batteries, the sulfur cathode delivered an improved capacity of 776 mAh g –1 at 0.5C However, systemic problems of lithium sulfur (Li-S) batteries are associated with polysulfide shuttling effect and poor Coulombic efficiency. Batteries Li-Sulfur

2018 68

Report: GS Yuasa developing high-capacity Li-sulfur battery, commercialization by 2020

Green Car Congress

said it has developed a next-generation lithium-sulfur battery with three times the capacity of existing products. The battery reportedly uses sulfur as a key material in the cathode and a silicon-based anode. The company said it now aims to improve the durability of the anode , so it can commercialize the next-generation lithium-ion battery by 2020. To formulate the cathode material, GS Yuasa fills sulfur into small holes on carbon rods, the company said.

2014 83