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A research team in China has developed a new type of electrolyte for high-energyLi-ion batteries with a self-purifying feature that opens a promising approach for electrolyte engineering for next-generation high-energyLi-ion batteries. —Lu et al.
the key to addressing the low-temperature capacity loss lies in adjusting the surface electron configurations of the carbon anode to reinforce the coordinate interaction between the solvated Li + and adsorption sites for Li + desolvation and reduce the activation energy of the charge-transfer process. . …
Stanford University scientists have identified a new solid-state Li-ion electrolyte predicted to exhibit simultaneously fast ionic conductivity, wide electrochemical stability, low cost, and low mass density. sulfur (Li?B?S) 1 in Li 5 B 7 S 13 and 80 (?56, 1 in Li 9 B 19 S 33. V for Li 5 B 7 S 13 , 0.16
A team led by researchers at Chungnam National University (S. Korea) has developed a novel high-voltage electrolyte additive, di-(2,2,2 trifluoroethyl)carbonate (DFDEC), for use with the promising lithium-rich layered composite oxide high-energy cathode material xLi 2 MnO 3 ·(1-x)LiMO 2 (M = Mn, Ni, Co). O 2 (Li 1.2 O 2 (Li 1.2
a developer of lithium-ion batteries using silicon nanowire anodes ( earlier post ), has launched the first generation of its high-capacity and high-energy-density Li-ion batteries. Amprius’ technology was initially developed at Professor Yi Cui’s laboratory at Stanford University ( earlier post ); Prof.
Researchers at Arizona State University have shown that paper-folding concepts can be applied to Li-ion batteries in order to realize a device with higher areal energy densities. Recently, there has been much interest in the development of electronic and energy storage devices using paper and textile components.
A team from Rice University has developed vanadium oxide (VO 2 )-graphene ribbon materials that, when used as cathode materials in Li-ion batteries, enable ultrafast, “ supercapacitor-like ” charge and discharge rates with long cycle life while maintaining highly reversible capacity. Credit: ACS, Yang et al. Click to enlarge.
Researchers from Western University, Canadian Light Source, and the Chinese Academy of Sciences have proposed a novel solid-phase Li-S transformation mechanism that enables high energyLi-S batteries in conventional Li-ion carbonate electrolytes. —Li et al.
A team of researchers led by a group from the University of Maryland has. volts versus Li/Li +. Combining this cathode with a passivated graphite anode, the team created a 4V-class aqueous Li-ion full cell with an energy density of 460 Wh kg -1 of total composite electrode and about 100% Coulombic efficiency.
NASA has selected four proposals for advanced Li-ion and Li-sulfur energy storage technologies that may be used to power the agencys future space missions. High Energy Density and Long-Life Li-S Batteries for Aerospace Applications, submitted by the California Institute of Technology in Pasadena.
Most electrolytes currently used in Li-ion batteries contain halogens, which are toxic. An in-depth study based on first-principles calculations by researchers at Virginia Commonwealth University has shown that the anions of commercially available electrolytes for Li-ion batteries are all superhalogens.
A new study by researchers from Argonne National Laboratory and the University of Illinois Urbana-Champaign seeking to identify the reasons that cause the performance of fast-charged lithium-ion batteries to degrade in EVs has found interesting chemical behavior of the anode as the battery is charged and discharged.
The winner of the best paper in 2019 was an effort by researchers then at the University of Cambridge, Argonne National Laboratory and the Diamond Light Source, Harwell Science and Innovation Campus, on the use of niobium tungsten oxides for high-rate lithium-ion battery storage. The paper (Griffith et al. ) Griffith et al.
Solid-state materials with high ionic conduction are necessary for many technologies, including all-solid-state lithium (Li)-ion batteries. The move to solid state batteries offers a number of advantages, including safety, but lithium ions in solids are less mobile than in liquids. . … —Di Stefano et al. 2019.07.001.
Engineers at the University of California San Diego and the University of California Los Angeles have developed an energy-efficient approach to regenerate Li-ion battery cathode materials (using LiCoO 2 as a model material) by hydrothermal treatment of cycled electrode particles followed by short annealing.
An all-solid-state lithium battery using inorganic solid electrolytes requires safety assurance and improved energy density, both of which are issues in large-scale applications of lithium-ion batteries. Utilization of high-capacity lithium-excess electrode materials is effective for the further increase in energy density.
Australian advanced materials technology company Talga Resources Ltd announced positive initial test results from the development of its graphene silicon lithium-ion anode in the UK. The Safevolt project is an enabler for industry wanting higher Li-ion battery capacity above the level of standard graphite (exceeding maximum 372 mAh/g).
Researchers at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia have developed a continuous electrically-driven membrane process which successfully enriches lithium from seawater samples of the Red Sea by 43,000 times (i.e., ppm) with a nominal Li/Mg selectivity >45 million. —Li et al. to 9013.43
The findings are detailed in a paper in American Chemical Society Energy Letters. The contributions from ions, electrons, and interfaces are deconvolved by correlating the CPD profiles with Li-concentration profiles and by comparisons with first-principles-informed modeling. —Alec Talin, co-corresponding author.
Steven Chu, a Nobel Laureate and the former Secretary of Energy, has joined the Board of Directors of Amprius, a developer of high-energy and high-capacity lithium-ion batteries using silicon nanowire anodes ( earlier post ). Professor of Physics and Professor of Molecular and Cellular Physiology at Stanford University.
Researchers at the Graduate School of Engineering and Graduate School of Science at the University of Tokyo have designed and synthesized a fluorinated cyclic phosphate solvent, 2-(2,2,2-trifluoroethoxy)-1,3,2-dioxaphospholane 2-oxide (TFEP), for use in lithium-ion batteries. Nat Energy doi: 10.1038/s41560-020-0567-z.
Researchers at the Helmholtz Institute Ulm (HIU), founded by the Karlsruhe Institute of Technology (KIT) in cooperation with the University of Ulm, have developed a new lithium-metal battery that offers extremely high energy density of 560 Wh/kg—based on the total weight of the active materials—with remarkably good stability.
Researchers from Nanyang Technological University (NTU Singapore) led by Professor Xiaodong Chen have developed a new TiO 2 gel material for Li-ion battery anodes. Titanium dioxide (TiO 2 ) nanomaterials are of interest as Li-ion anode materials due to their advantages in terms of cost, safety, and rate capability.
is funding a research consortium with the University of British Columbia (UBC) to develop a low-cost and scalable method for fabricating silicon-based anodes to improve the energy density of Li-ion batteries. Fabrication and evaluation of Si-based anode for Li-ion batteries. Canada-based MGX Minerals Inc.
The energy and power density of our microbattery cells (A–H) at low to high C rates, along with previous microbattery cells having 3D electrodes (MB1 through MB3). The plot also includes the performance range of conventional power technologies and commercial batteries from A123 (high power) and Sony (high energy). Source: Pikul et al.
Japan’s New Energy and Industrial Technology Development Organization (NEDO) has launched the second phase of a major solid-state Li-ion battery project in a quest to achieve both high energy density and safety in batteries for electric vehicles. Maxell Corporation; Murata Manufacturing Co., Yamaha Mr. .;
Sionic’s silicon-anode battery cell designs incorporate the company’s complete technology innovations that deliver up to 50% greater energy density, 30% lower cost, and increased safety, and can be integrated into cylindrical, pouch, or prismatic cell formats in existing cell production supply chains and infrastructure. —Ed Williams.
Researchers led by a team at Temple University have developed a soft solid electrolyte—(Adpn) 2 LiPF 6 (Adpn, adiponitrile)—that exhibits high thermal and electrochemical stability and good ionic conductivity, overcoming several limitations of conventional organic and ceramic materials. Prakash et al. Resources Prakash, P.,
Long-term cycling test results of the Li/S cell with CTAB-modified S?GO This result represents the longest cycle life (exceeding 1,500 cycles) with an extremely low decay rate (0.039% per cycle) demonstrated so far for a Li/S cell. This would require almost double the specific energy (about 200 Wh/kg) of current lithium-ion batteries.
Increasing cell energy is one way to decrease cost even further, as a higher specific energy value will result in fewer materials needed for the same total battery energy. However, it is difficult to increase the energy density beyond that of today’s cells, which are approximately 220 Wh/kg using graphite anodes.
Researchers at Tokyo Metropolitan University have developed a new practical method to make a flexible composite Al-doped LLZO (Al-LLZO) sheet electrolyte (75 ?m m in thickness) for Li-metal batteries, which can be mass-produced at room temperature. Credit: Tokyo Metropolitan University. La,Li)NbO 3 ) and Li 1.3
The US Department of Energy (DOE) has six recently launched applied battery research (ABR) projects as part of its Vehicle Technologies portfolio. CAM-7 is a stabilized, high-nickel cathode material that combines high energy content with high power capability. The projects end in 2015. Argonne National Laboratory. Ah and 247 Wh/kg.
At Auto Shanghai, Chinese battery giant CATL launched what it calls a “condensed battery”—a type of semi-solid state cell with an energy density of up to 500 Wh/kg. CATL says the cell can achieve high energy density and high level of safety at the same time, opening up a new electrification scenario for passenger aircraft.
A team from Zhejiang A&F University, Huazhong University of Science and Technology (HUST), and Stanford University have developed a binder-free, flexible, and free-standing electrode comprising an unprecedented 92% silicon content for Li-ion batteries. 1 (Li 15 Si 4 ). —Wang et al.
A team from Monash University, a leading university in Australia, and the Toyota Research Institute North America (TRINA), a division of Toyota Motor North America R&D (TMNA) based in Ann Arbor, Michigan, reports a novel family of closo-boron-cluster based room temperature ionic liquids (RTILs). Photo Credit: Dr. Mega Kar.
A research team at Korea Electrotechnology Research Institute (KERI) has developed a high-capacity Li-metal battery with improved rate performance and stability using a one-dimensional Li-confinable porous hollow carbon host. However, these hosts suffer from unwanted Li growth on their surface (i.e., Kang et al.
Magnesium batteries have long been considered a potentially safer and less expensive alternative to lithium-ion batteries, but previous versions have been severely limited in the power they delivered. Magnesium ions hold twice the charge of lithium, while having a similar ionic radius. —Dong et al. Neither approach is practical.
Researchers at Changsha University of Science & Technology in China have used spent asphalt to produce a high-performance universalLi/Na/K-ion anode material. As an anode material for Li-ion batteries, the mesoporous carbon exhibits a reversible capability of 674.2 —Xie et al. 2021.230593.
Researchers from the Cockrell School of Engineering at The University of Texas at Austin have developed a cobalt-free high-energy lithium-ion battery, eliminating the cobalt and opening the door to reducing the costs of producing batteries while boosting performance in some ways. graduate Wangda Li. graduate Wangda Li.
Researchers from the US Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a new lithium/polysulfide (Li/PS) semi-liquid (flow) battery for large-scale energy storage, with lithium polysulfide (Li 2 S 8 ) in ether solvent as a catholyte and metallic lithium as an anode.
Scientists from Tohoku University have developed a new fluorine-free calcium (Ca) electrolyte based on a hydrogen (monocarborane) cluster that could potentially realize rechargeable Ca batteries. High-energy-density and low-cost calcium (Ca) batteries have been proposed as ‘beyond-Li-ion’ electrochemical energy storage devices.
The new EPIC project coordinated by Karlsruhe Institute of Technology (KIT) is aimed at accelerating the drying of high-quality electrodes for lithium-ion batteries, increasing the energy efficiency of this process and, hence, reducing the cost of production. EPIC is funded by the Federal Ministry of Research with €3 million.
Researchers at Pacific Northwest National Laboratory (PNNL), with colleagues at UC San Diego, have developed a “mesoporous silicon sponge” material that, when applied as an anode in a lithium-ion battery, can deliver capacity of up to ~750?mAh?g 1 based on the total electrode weight with more than 80% capacity retention over 1,000 cycles.
Commercial fast-charging stations subject electric car batteries to high temperatures and high resistance that can cause them to crack, leak, and lose their storage capacity, according to researchers at the University of California, Riverside (UCR) in a new open-access study published in the journal Energy Storage. Sebastian et.
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