Green Car Congress

APRIL 29, 2019

Researchers at Chalmers University of Technology, Sweden, have developed a free-standing reduced graphene oxide (r-GO) aerogel for use as a supporting electrode for the electrochemical redox reaction of sulfur in a catholyte-based lithium-sulfur battery. The highly porous structure is easily infiltrated by a catholyte solution providing a homogeneous distribution of the sulfur active material in the conductive graphene matrix and ensures efficient electrochemical reactions.

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Green Car Reports

JANUARY 13, 2020

Researchers in Australia say that advancements made in cathode durability could make lithium-sulfur batteries a reality for electric vehicles soon. In both, researches say lithium-sulfur's lower weight and. The news was reported Friday by IEEE Spectrum following a paper published Monday by researchers at Monash University in Science Advances. Batteries

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Green Car Congress

MARCH 26, 2019

Researchers at MIT and in China are proposing a new class of dense intercalation-conversion hybrid cathodes by combining intercalation-type Mo 6 S 8 with conversion-type sulfur (HMSC) to realize a Li–S full cell. Anion-redox lithium–sulfur (Li–S) is one of the most promising conversion battery chemistries with high theoretical cathode energy density of 2,600 Wh kg -1 based on the weight of Li 2 S, S 8 + 16 e? Batteries Li-Sulfur

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Green Car Congress

DECEMBER 17, 2018

The €7.9-million (US$8.9-million), 43-month Lithium Sulfur for Safe Road Electrification (LISA) project will launch 1 January 2019 in Europe. The overall goal is to design and manufacture a lithium-sulfur technology that will enable safe electrification of EV applications. Li-Sulfur is a promising alternative to Li-ion—free of critical raw material (CRM) and non-limited in capacity and energy by material of intercalation.

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Green Car Reports

FEBRUARY 14, 2015

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.

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Green Car Reports

NOVEMBER 29, 2013

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

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Green Car Congress

JUNE 3, 2012

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.

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Green Car Congress

APRIL 3, 2018

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. Reported in an open-access paper published in the RSC journal Sustainable Energy & Fuels , the method uses lignosulfonate as both the donor (decomposition of sulfonic groups (–SO 3 H)) of sulfur and the sulfur acceptor in lignosulfonate-derived activated carbon. Batteries Li-Sulfur

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Green Car Reports

JANUARY 13, 2020

And lithium-sulfur batteries could be closer to a breakthrough. Nissan’s upcoming electric crossover is taking form—and we sample some of the performance technology that might help it stand out in the market. Cost remains a big barrier against EV adoption. This and more, here at Green Car Reports. For a look at the long-awaited. Today in Car News

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Green Car Congress

OCTOBER 22, 2018

The developed 3-D TiO/CNF architecture with the inherent inter-fiber macropores of nanofiber mats provides a much higher surface area (~427 m 2 g -1 ) and overcomes the challenges associated with the use of highly dense powdered Ti-based suboxides/monoxide materials, thereby allowing for high active sulfur loading among other benefits. We have created freestanding porous titanium monoxide nanofiber mat as a cathode host material in lithium-sulfur batteries.

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

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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) Lithium sulfur batteries are of great interest due to their high specific energy and relatively low cost (e.g., A team at Stanford University lef by Profesor Yi Cui has now identified a new capacity fading mechanism of the sulfur cathodes and developed a new approach to overcoming this mechanism. Electrochemical performance of the modified hollow carbon nanofiber cathode. (a)

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Green Car Reports

FEBRUARY 16, 2015

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

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Green Car Congress

NOVEMBER 24, 2015

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

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Green Car Congress

SEPTEMBER 7, 2013

Kentucky Governor Steve Beshear announced that start-up lithium-sulfur battery company NOHMs (Nano Organic Hybrid Materials) Technologies Inc. has selected to locate its research, manufacturing and product development facility for military, cell phone and electric vehicle lithium-ion batteries in Lexington. Founded in October 2010, NOHMs Technologies has developed a battery that is based on lithium-sulfur chemistry. NOHMs technology portfolio. Source: NOHMs.

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Green Car Congress

APRIL 1, 2014

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. The study of the compatibility of Si anode with cathode materials such as LiMn 2 O 4 , LiFePO 4 , and sulfur also deserves further endeavors to harvest the full potential of the porous Si anodes. sulfur (Li?S)

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Green Car Congress

JULY 31, 2012

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), Lithium–Sulfur Batteries Based on Nitrogen-Doped Carbon and an Ionic-Liquid Electrolyte.

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OCTOBER 7, 2011

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.

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Green Car Congress

NOVEMBER 2, 2011

A team from Lawrence Berkeley National Laboratory and Tsinghua University (China) have synthesized graphene oxide-sulfur (GO-S) nanocomposite cathodes and applied them in lithium/sulfur cells to show a high reversible capacity of 950-1400 mAh g -1 and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g -1 ). The team used a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide.

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Green Car Congress

DECEMBER 19, 2014

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.

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Green Car Congress

NOVEMBER 12, 2009

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.

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Green Car Congress

SEPTEMBER 11, 2012

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. Moreover, they note, Li 2 S could be paired with a lithium-free anode, preventing safety concerns and low Coulomb efficiency of lithium metal in Li/S batteries.

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Green Car Congress

MAY 15, 2009

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. The theoretical specific energy of a lithium-sulfur battery chemistry is in excess of 2,500 Wh/kg with a theoretical energy density greater than 2,600 Wh/L. Configuration of a Li-S cell. Click to enlarge.

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Green Car Congress

APRIL 19, 2020

Jian Liu and Prof.Zhongshuai Wu from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences have developed Fe 1-x S-decorated mesoporous carbon spheres as a cathode material for lithium-sulfur batteries. 1 ), and enhanced adsorption and electrocatalytic transition toward lithium polysulfides (LiPs). Lithium-sulfur batteries have a high theoretical energy density of 2600 Wh kg -1 and a theoretical capacity of 1675 mAh g -1.

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Green Car Congress

NOVEMBER 22, 2020

Yachts de Luxe (YdL) of Singapore has placed a commercial 10-year worldwide contract with OXIS Energy valued at $5 million to build the world’s first luxury boat to be powered by Lithium-Sulfur (Li-S) battery cells and battery systems technology.

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Green Car Congress

OCTOBER 3, 2018

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. The battery module uses a High Power, Ultra-Light Lithium Sulfur pouch cell at 300 Wh/kg. Future modules will tap into the increasing capabilities of Lithium Sulfur pouch cells, where High Power cells are forecast to achieve 400 Wh/kg by 2019.

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Green Car Congress

JANUARY 24, 2019

Safran acquired an equity interest in Li-Sulfur battery manufacturer OXIS Energy ( earlier post ) through its Safran Corporate Ventures subsidiary, which invests in disruptive technology businesses. OXIS Energy, a leader in lithium-sulfur cell technology for high energy density battery systems, has already been granted 173 patents with 96 pending. Batteries Li-Sulfur

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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. Researchers at the University of Waterloo have now shown that the lightweight superconductor MgB 2 (magnesium diboride)—the average mass/atom of which is comparable with carbon—as a metallic sulfur host fulfills both electron conduction and polysulfide immobilization properties.

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2018 Lithium Sulfur Universal Batteries 100

Green Car Congress

JUNE 21, 2015

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 lithium–sulfur cell. The self-discharge of a lithium–sulfur cell decreases the shelf-life of the battery and is one of the bottlenecks that hinders its practical applications.

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Green Car Congress

NOVEMBER 26, 2018

Schematic of a lithium sulfur battery in carbonate-based electrolyte. Alucone coating is applied to carbon–sulfur electrodes and the sulfur cathode is in cyclo-S 8 molecule format. Carbonate-based electrolytes demonstrate safe and stable electrochemical performance in lithium-sulfur batteries. Remarkably, the developed sulfur cathode architecture has high sulfur content (>65?wt%) Batteries Li-Sulfur

2018 84

2018 Lithium Sulfur Li-ion Carbon 84

Green Car Congress

JUNE 7, 2020

Scientists from the Daegu Gyeongbuk Institute of Science and Technology, Korea, have developed a novel silica-based cathode for lithium–sulfur batteries, thereby enabling the realization of batteries that can last for more than 2,000 charge/discharge cycles. However, using sulfur in batteries is tricky for two reasons. Second, sulfur is non-conducting. Life Lithium–Sulfur Battery.” Batteries Li-Sulfur Materials

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2020 Lithium Sulfur 2000 Carbon 101

Green Car Congress

DECEMBER 14, 2020

A team led by Professor Cheong Ying Chan at Hong Kong University Of Science And Technology (HKUST) Energy Institute, has proposed a novel cathode design concept for lithium-sulfur (Li-S) battery that substantially improves the performance of this kind of promising next-generation battery.

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2020 Saudi Arabia Design Lithium Sulfur 101

Green Car Congress

JUNE 16, 2019

OXIS Energy will establish the first manufacturing plant for the production of electrolyte and cathode active material specifically for the mass production of lithium sulfur cells. However, it will collaborate with Codemig, a wholly owned company controlled by the State of Minas Gerais to jointly exploit lithium rock deposit for the production of world class lithium metal, which is used by OXIS for its Li-S cells. Batteries Li-Sulfur

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2019 Lithium Sulfur Brazil Building 92

Green Car Congress

AUGUST 19, 2015

Under the European Union’s Horizon 2020 research and innovation program, the EU has launched ALISE (Advanced Lithium Sulfur battery for xEV), a pan-European collaboration focused on the development and commercial scale-up of new materials and on the understanding of the electrochemical processes involved in lithium-sulfur technology. Batteries Electric (Battery) Li-Sulfur

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Green Car Congress

DECEMBER 1, 2015

In a new report titled “ The Next-Generation Battery Roadmap: Quantifying How Solid-State, Lithium-Sulfur, and Other Batteries Will Emerge After 2020 ”, Lux Research analysts created an adoption roadmap for next-generation batteries, quantifying the market for each technology, and ranking emerging battery developers on the proprietary Lux Innovation Grid. The lithium-sulfur landscape is sparser, with Oxis Energy and Boulder Ionics earning positive takes from Lux.

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2015 Lithium Sulfur Li-ion Grid 69

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. The cathode combines laser-synthesized sulfur (S) and nitrogen- (N-) doped graphene electrodes (without a binder) with molybdenum sulfide (MoS 2 ) nanoparticle loading. The soluble lithium polysulfide is the key factor of the “shuttle” effect in electrochemical reaction on the sulfur cathode. Batteries Graphene Li-Sulfur

2019 78

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Green Car Congress

SEPTEMBER 30, 2014

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.

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Green Car Congress

DECEMBER 4, 2017

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

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Green Car Congress

MAY 20, 2019

Researchers at Beihang University in Beijing have developed a linear molecule sulfur-rich organic material as sulfur cathode for a lithium-sulfur battery. The tetramethylthiuram disulfide-sulfur (TMTD-S) cathode material delivers an initial capacity of 685?mAh In the past decade, lithium-sulfur batteries have been intensively researched worldwide due to their high theoretical energy density (2600 Wh kg ??-1 Batteries Li-Sulfur

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Green Car Congress

SEPTEMBER 30, 2019

To develop higher capacity batteries, researchers have looked to lithium-sulfur batteries because of sulfur’s high theoretical capacity and energy density. There are still several problems to solve before lithium-sulfur batteries can be put into widespread practical application—such as sulfur’s intrinsically low electrical conductivity and the rapid capacity decay caused by polysulfides escaping from the cathode. Batteries Li-Sulfur

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Green Car Congress

FEBRUARY 17, 2017

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. The USC team developed a “mixed conduction membrane” (MCM)—a thin non-porous lithium-ion conducting barrier that simply restricts the soluble polysulfides to the positive electrode. Top: Schematic of the electrochemical processes in a generic lithium-sulfur battery.

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Green Car Congress

OCTOBER 10, 2016

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. Compared to sulfur loaded in a common carbon material, acetylene black (AB-S), the CA-S exhibited significantly improved cyclic stability and rate capability. These issues limit the practical application of lithium-sulfur battery. Batteries Li-Sulfur

2016 77

2016 Lithium Sulfur Carbon China 77

Green Car Congress

NOVEMBER 10, 2018

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

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