Green Car Congress

SEPTEMBER 19, 2016

Researchers affiliated with Ulsan National Institute of Science and Technology (UNIST), South Korea, and Stanford University have demonstrated the feasibility of a next-generation hybrid anode for high-capacity Li-on batteries using silicon-nanolayer-embedded graphite/carbon. Nature Energy 1 Article number: 16113 doi: 10.1038/nenergy.2016.113.

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Li-ion Carbon South Korea Lithium Ion 150

Green Car Congress

NOVEMBER 17, 2014

Researchers at the University of Wollongong (Australia) have synthesized lead germanate-graphene nanosheets (PbGeO 3 -GNS) composites for use as anode materials for Li-ion batteries (LIBs). 1 ), low working potential, and high lithium ion diffusivity (400 times higher than that of the well-studied Si). 1 at 100 mA g ?1

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Li-ion Lithium Ion 2014 Energy Storage 218

Green Car Congress

MARCH 29, 2013

sand, or quartz) nanocubes as an anode material for Li-ion batteries (LIBs). However, the drastic volume variation (around 300%) during repeated insertion and extraction of lithium ions leads to its remarkable capacity fading. 2001] reported that commercial SiO 2 nanoparticles could react with Li between 0.0

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Li-ion Lithium Ion China Batteries 257

Green Car Congress

JANUARY 1, 2014

Researchers from Shanghai University have synthesized Fe 2 O 3 -graphene sheet-on-sheet sandwich-like nanocomposites that, when used as an anode for Li-ion battery, shows a high reversible capacity of 662.4 These metal oxides electrodes have shown much higher Li-ion storage capacities than that of commercial graphite anodes.

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Li-ion Batteries Battery Carbon 240

Green Car Congress

SEPTEMBER 11, 2010

A team at Tsinghua University in China has developed a film of porous carbon nanofibers containing Sn/SnO x nanoparticles in the pores for use as an anode material in Li-ion batteries. A paper on the work is in press in the journal Carbon. Carbon Article in Press doi: 10.1016/j.carbon.2010.08.046.

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Li-ion Carbon Lithium Ion 2010 186

Green Car Congress

MARCH 27, 2023

The team’s findings from the silicon disulfide study were published as the cover article (open access) in the recent edition of the RSC Journal of Materials Chemistry A. ASSBs replace the liquid-state electrolytes that transfer ions between the anode and cathode with a solid less prone to fire or explosion. —Nam et al.

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Li-ion Production Batteries Battery 243

Green Car Congress

JUNE 12, 2013

Schematics of Li + /Na + mixed-ion battery. During charging (or discharging), the storage (or release) of Li + takes place at anode, and the release (or storage) of Na + occurs at cathode. However, a number of issues remain before SIBs could become commercially competitive with Li-ion batteries (LIBs). Chen et al.

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Li-ion Batteries Battery Sodium 170

Green Car Congress

NOVEMBER 4, 2019

Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory have reported that a new photo-excitation mechanism can speed up the charging of lithium-ion batteries by a factor of two or more. A serious limitation [of lithium-ion batteries], however, is the slow charging rate used to obtain the full capacity.

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Li-ion Lithium Ion Charging Light 305

Green Car Congress

JANUARY 7, 2015

A team from the University of Rome Sapienza has developed a rechargeable lithium-ion polymer battery based on the combination of a high capacity sulfur-carbon cathode, nanostructured Li x Sn-C anode and polysulfide-added PEO-based gel membrane. Moreover, the addition of a dissolved polysulfide (i.e.

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Li-ion Polymer Lithium Sulfur Energy 150

Green Car Congress

AUGUST 18, 2014

Ragone plot, comparing Li-CNT-F batteries with other batteries in terms of weight of cathode materials. The highest energy density for Li-CNT-F batteries, 4,113 Wh kg carbon ?1 Their system is based on a lithium-carbon battery configuration, but with a different approach. 1 and a specific energy of 4113 Wh kg carbon ?1

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Li-ion Carbon Lithium Ion Energy 225

Green Car Congress

JUNE 6, 2010

GMP40 (60:40 weight ratio of mixed mesophase pitch carbon and phenolic resin) produced the best results. However, carbon remains the predominant commercial anode material solution at this point. Some studies have demonstrated that carbon coating of graphite improves the anode performance in LIBs. Credit: ACS, Lin et al.

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Li-ion Carbon Lithium Ion Charging 186

Green Car Congress

APRIL 2, 2014

m used as a Li-ion electrode material exhibits a high capacity and stable cycling of 800 mAh g ?1. The mechanical and chemical stabilities of the electrodes were ensured by an optimal electrode-electrolyte system design, with a polyimide-based binder together with fluoroethylene carbonate in the electrolyte, the authors said.

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Li-ion Batteries Battery Lithium Ion 220

Baua Electric

JANUARY 16, 2024

At the heart of this collaboration lies noco-noco’s X-SEPA separator technology capable of extending the life of the conventional lithium-ion batteries fivefold, when used with a proprietary electrolyte, Greenfuel said in a release. million by 2031 with a CAGR of 22.1% within the forecast period.

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Li-ion Auto Batteries Battery 52

Green Car Congress

MARCH 29, 2015

Researchers at Dalhousie University (Canada) led by Dr. Jeff Dahn now report that Li[Ni 1/3 Mn 1/3 Co 1/3 ]O 2 (NMC111)/graphite and Li[Ni 0.42 Their work is published in a paper in an open access article in the Journal of the Electrochemical Society. V and lower thermal reactivity for the charged graphite electrode.

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Li-ion Ni-Li Charging Canada 150

Green Car Congress

JULY 2, 2011

In a paper published in the ACS journal Nano Letters , they suggest that this material represents a promising cathode material for rechargeable Li-ion batteries with high energy density. principle, graphene-sulfur composite could lead to improved sulfur cathode materials for Li-S batteries. Earlier post.) —Wang et al.

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Li-ion Energy Batteries Battery 239

Green Car Congress

MAY 13, 2016

The heterostructure model well explains the distinctive structure and properties of the material, which could play an important role in boosting the capacity of Li-ion batteries. The new findings show that its structure allows the storage of a larger number of Li ions, in turn leading to higher capacity.

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Li-ion Nissan Insight Batteries 150

Green Car Congress

SEPTEMBER 12, 2010

A team from the University of Tokyo and the Tokyo Institute of Technology has synthesized a new pyrophosphate compound (Li 2 FeP 2 O 7 ) by a conventional solid-state reaction for use as a cathode material in Li-ion batteries. 1 µm particles without any special efforts such as nanosizing or carbon coating.

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Li-ion Lithium Ion 2010 Plug-in 220

Green Car Congress

FEBRUARY 4, 2014

A major barrier to the use of high energy capacity silicon in a lithium-ion battery is the volumetric expansion of silicon under lithiation and delithiation, which results in electrode degradation and capacity fade. Silicon (shown in grey) is capable of holding 10 times as many lithium ions (shown in pink) as currently-used anodes.

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Li-ion Insight Lithium Ion Batteries 199

Green Car Congress

APRIL 27, 2014

Capacity and coulombic efficiency versus cycle index of Li-PGN cathodes at a rate of ~1C. O 2 and Li 3 V 1.98 Researchers at Rensselaer Polytechnic Institute have developed a safe, extended cycling lithium-metal electrode for rechargeable Li-ion batteries by entrapping lithium metal within a porous graphene network (Li-PGN).

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Recharge Li-ion Carbon Batteries 252

Green Car Congress

JANUARY 27, 2015

In a paper published in Nature Communications , they report that the porosity of the ion-conducting membrane (ICM) is smaller than the growth area of the dendrites; the aramid nanofibers thus eliminate “weak links” where dendrites can pierce a membrane. Unlike other ultra strong materials such as carbon nanotubes, Kevlar is an insulator.

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Li-ion Batteries Battery Lithium Ion 150

Green Car Congress

MARCH 12, 2018

Researchers at The University of Western Ontario (UWO) have discovered a new conductive phase during the carbon-coating process of lithium iron phosphate (LFP) cathode material that can improve the electrochemical performance of lithium-ion batteries. Surface conductive phase formation during carbon coating process. (a)

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Carbon Lithium Ion Li-ion 2018 186

Green Car Congress

AUGUST 5, 2015

A team of researchers at MIT and Tsinghua University has developed a high-rate, high-capacity and long-lived anode for Li-ion batteries comprising a yolk-shell nanocomposite of aluminum core (30 nm in diameter) and TiO 2 shell (~3 nm in thickness), with a tunable interspace (Al@TiO 2 , or ATO). —Li et al.

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Li-ion MIT Batteries Battery 150

Green Car Congress

SEPTEMBER 28, 2016

A team at Sun Yat-sen University in China has developed new high-performance, stable cathode for Li-S batteries consisting of a 3D activated carbon fiber matrix (ACFC) and sulfur. For the composite cathodes with 3D conductive framework, however, the continuous carbon fibers act as high-speed electron pathway. Click to enlarge.

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Carbon Fiber Carbon Li-ion Batteries 150

Green Car Congress

OCTOBER 13, 2015

As reported in an open access paper in Nature’s Scientific Reports , the new battery showed a discharge capacity of 153 mAh g −1 based on the mass of catholyte and carbon electrode with an operating voltage of 3 V; good rate capability; and excellent cycle performance over 300 cycles. catholyte). mA cm −2 ).

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Li-ion Batteries Battery Recharge 150

Green Car Congress

MAY 2, 2011

A team from Nanyang Technological University (China) has developed a scalable self-assembly strategy to create bio-inspired honeycomb-like hierarchical structures composed of functionalized graphene sheets to work as anodes in lithium-ion batteries. ACS Nano Article ASAP doi: 10.1021/nn2001728. Credit: ACS, Yin et al.

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Li-ion Lithium Ion Batteries Battery 210

Green Car Congress

AUGUST 6, 2009

Top: Schematic illustration of Si coating onto carbon nanofibers (left) Bare CNFs. Researchers at Stanford, led by Dr. Yi Cui, have developed another approach to a silicon-based lithium-ion anode with the introduction of a novel design of carbon-silicon core-shell nanowires for high power and long life electrodes. Credit: ACS.

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Li-ion Carbon Lithium Ion Batteries 186

Green Car Congress

JULY 9, 2014

Coated with carbon, the nano-silicon electrodes achieve high electrochemical performance with a capacity of 1024?mAhg To address silicon’s relatively low electrical conductivity, they conformally coated the nano-Si powders with a ~4 nm amorphous carbon coating to enhance conductivity across all surfaces. 1 after 1,000 cycles.

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Li-ion Low Cost Cheap All-Electric 231

Green Car Congress

FEBRUARY 19, 2015

Researchers at the University of California, Riverside’s Bourns College of Engineering have developed a novel nano-silicon paper electrode material for high capacity lithium-ion batteries. binderless) carbon-coated Si nanofiber (C-SiNF) electrodes produce a capacity of 802 mAh g ?1 The free-standing (i.e., —Favors et al.

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Carbon Li-ion Lithium Ion Polymer 150

Green Car Congress

JUNE 27, 2015

A team at Samsung Advanced Institue of Technology ( SAIT , Samsung’s global R&D hub) reports in an open access paper published in the journal Nature Communications on a new approach to advance high-capacity silicon (Si) anodes for Li-ion batteries (LIBs) to commercial viability, with a particular focus on improving the volumetric capacity of LIBs.

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Li-ion Lithium Ion Commercial Batteries 150

Green Car Congress

SEPTEMBER 21, 2011

Schematic of design and fabrication process of hollow carbon nanofibers/sulfur composite structure. 80%) during cycling; and the insulating nature of Li 2 S. Li 2 S 2 and Li 2 S can also precipitate on the positive electrode, changing the morphology and resulting in fast capacity fading. Credit: ACS, Zheng et al.

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Li-ion Carbon Batteries Battery 186

Green Car Congress

OCTOBER 13, 2019

One possible way to counteract rising global CO 2 emissions is to capture and sequester carbon from the atmosphere, but current methods are highly energy intensive. The new material is a porous coordination polymer (PCP, also known as MOF; metal-organic framework), a framework consisting of zinc metal ions. —Wu et al.

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Polymer Convert CO2 Carbon 255

Green Car Congress

JANUARY 31, 2010

Researchers in China and Germany have coated carbon nanotubes (CNT) with a nanoporous layer of TiO 2 to create coaxial nanocables for use as electrode materials in Li-ion batteries (LIB). Carbon provides sufficient electronic conductivity but lacks sufficient ion conductivity. Credit: ACS, Cao et al.

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Li-ion Energy Carbon Lithium Ion 218

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. The partnership offers significant benefits for both companies.

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Lithium Sulfur Li-ion Auto Lithium Ion 52

Green Car Congress

MARCH 27, 2009

Stacked plots of in situ 7Li static NMR spectra and electrochemical profile of the first discharge (C) of an actual crystalline Si vs Li/Li+ battery. However, silicon anodes are problematic because the material’s volume changes by up to 300-400% upon the insertion and extraction of lithium ions during charge/discharge cycles.

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Li-ion Lithium Ion Batteries Battery 150

Green Car Congress

OCTOBER 12, 2009

An international team of researchers from Stanford University, Università degli Studi di Milano-Bicocca, and Korea Advanced Institute of Science and Technology (KAIST) is proposing the use of single nanostructure devices as a powerful new diagnostic tool for Li-ion batteries. Article ASAP doi: 10.1021/nl902315u.

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Li-ion Batteries Battery 2009 186

Baua Electric

APRIL 19, 2024

Unquestionably, the industry wave of the previous EVs has been lithium-ion (Li-ion) batteries used as power sources. Consequently, with the advent of new battery technology and charging networks, the EV market is gaining popularity among consumers who are looking into ways of decreasing their carbon footprints.

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Li-ion Auto Lithium Ion Batteries 40

Green Car Congress

APRIL 8, 2010

As has been noted many times, silicon is a promising candidate for electrodes in lithium ion batteries due to its large theoretical energy density of about 4,200 mAhg -1 —10x higher than graphite (372 mAhg -1 )—and relatively low working potential (~0.5 V vs Li/Li + ). Article ASAP doi: 10.1021/nl100086e.

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