Category: 143-24-8

Bevilacqua, Sarah C. published the artcileEffect of the Electrolyte Solvent on Redox Processes in Mg-S Batteries, COA of Formula: C10H22O5, the main research area is magnesium sulfur battery electrolyte solvent redox process.

Mg-S batteries are attractive for next-generation energy storage because of their high theor. capacity and low cost. The foremost challenge in Mg-S batteries is designing electrolytes that support reversible electrochem. at both electrodes. Here, we target a solution-mediated reduction pathway for the S8 cathode by tailoring the electrolyte solvent. Varying the solvent in Mg-based systems is complicated because of the active nature of the solvent in solvating Mg2+ and the complex dynamics of electrolyte-Mg interfaces. To understand the effect of the solvent on the S8 reduction processes in the Mg-S cell, the magnesium-aluminum chloride complex (MACC) electrolyte was prepared in different ethereal solvents. Reversible Mg electrodeposition is demonstrated in the MACC electrolyte in several solvent systems. The electrodeposition overpotentials and current densities are found to vary with the solvent, suggesting that the solvent plays a noninnocent role in the electrochem. processes at the Mg interface. Mg-S cells are prepared with the electrolytes to understand how the solvent affects the reduction of S8. A reductive wave is present in all linear-sweep voltammograms, and the peak potential varies with the solvent. The peak potential is approx. 0.8 V vs. Mg/Mg2+, lower than the expected reduction potential of 1.7 V. We rule out passivation of the Mg anode as the cause for the low voltage peak potential, making processes at the S8 cathode the likely culprit. The ability to oxidize MgS with the MACC electrolyte is also examined, and we find that the oxidation current can be attributed to side reactions at the C-electrolyte interface.

Inorganic Chemistry published new progress about Battery anodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kuepers, V. published the artcileApproaching electrochemical limits of MgxClyz+ complex-based electrolytes for Mg batteries by tailoring the solution structure, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is electrochem magnesium chloride electrolytes batteries.

The future demand for energy storage requires the development of next generation batteries, e.g. based on magnesium (Mg). Mg as anode material offers great advantages such as low costs and a high volumetric capacity compared to state-of-the-art anodes. However, the lower standard potential of Mg|Mg2+ (-2.36 V vs SHE) compared to Li|Li+ (-3.04 V vs SHE) or Li+ intercalation/deintercalation into/from graphite (≈-2.95 V vs SHE) emerges the need for high voltage cathodes and suitable electrolytes to achieve competitive cell energy values. The oxidative stabilities of less than 3.5 V vs Mg|Mg2+ for most of those electrolytes which enable Mg electrodeposition/-dissolution is too low to facilitate needed high-voltage Mg-based batteries. In this study, we therefore investigate the limits of oxidative stability of a commonly used Mg(TFSI)2- and MgCl2-based electrolyte by variation of solvents (ethers and ionic liquids) and salt ratios. Further on, we highlight the underlying reasons for the oxidative stability limits.

Journal of the Electrochemical Society published new progress about Battery anodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Cao, Deqing published the artcileImproving the True Cycling of Redox Mediators-assisted Li-O2 Batteries, SDS of cas: 143-24-8, the main research area is gel polymer membrane redox mediator lithium oxide battery electrolysis.

The application of redox mediators has been considered as a promising strategy to boost the performance of aprotic Li-O2 batteries. However, the issues brought with redox mediators, especially on the Li anode side have been overlooked. Here, we propose a facile approach of preparing a gel polymer membrane that not only allow uniform Li plating/stripping with large current densities over extended cycling but also inhibit the diffusion of redox mediators and avoid redox shuttling, self-discharge, and internal short-circuiting. More importantly, the gel polymer membrane prevents the penetration of O2 and superoxide intermediates from the Li anode. Therefore, it ensures the successful application of both lithium anode and redox mediators in Li-O2 batteries to achieve the desired high capacity and rate performance. Meanwhile, it helps understand the benefit and problems of added redox mediators and reactive oxygen species so that the performance of such Li-O2 batteries can be truly evaluated.

Energy & Environmental Materials published new progress about Current density. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, SDS of cas: 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhang, Xiao-Ping published the artcileAnode interfacial layer formation via reductive ethyl detaching of organic iodide in lithium-oxygen batteries, COA of Formula: C10H22O5, the main research area is organic iodide ethyl detaching lithium oxygen battery.

As soluble catalysts, redox mediators can reduce the high charging overpotential of lithium-oxygen batteries by providing sufficient liquid-solid interface for lithium peroxide decomposition However, the redox mediators usually introduce undesirable reactions. In particular, the so-called “”shuttle effect”” leads to the loss of both the redox mediators and elec. energy efficiency. In this study, an organic compound, triethylsulfonium iodide, is found to act bifunctionally as both a redox mediator and a solid electrolyte interphase-forming agent for lithium-oxygen batteries. During charging, the organic iodide exhibits comparable lithium peroxide-oxidizing capability with inorganic iodides. Meanwhile, it in situ generates an interfacial layer on lithium anode via reductive Et detaching and the subsequent oxidation This layer prevents the lithium anode from reacting with the redox mediators and allows efficient lithium-ion transfer leading to dendrite-free lithium anode. Significantly improved cycling performance has been achieved by the bifunctional organic iodide redox mediator.

Nature Communications published new progress about Current density. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Cronau, Marvin published the artcileThickness-Dependent Impedance of Composite Battery Electrodes Containing Ionic Liquid-Based Electrolytes, COA of Formula: C10H22O5, the main research area is lithium ion battery thickness charge transfer resistance current density.

Lithium-ion battery models often neglect the salt concentration polarization inside the electrolyte-filled pores of the composite electrodes. However, this concentration polarization causes a significant impedance, in particular in the case of electrolytes with low Li+ transference numbers Here, we analyze in detail measured and calculated impedance spectra of composite electrodes containing a solvate ionic liquid-based electrolyte and an ionic liquid-based electrolyte, resp., in comparison to a conventional carbonate-based electrolyte. For calculating spectra, we use a recently published model by Huang and Zhang. We find that the impedance at 10-4 Hz, which is relevant for battery cycling rates around 1 C to 2 C, increases in the order carbonate-based electrolyteCOA of Formula: C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kim, Yeongsu published the artcileSynergistic nanoarchitecture of mesoporous carbon and carbon nanotubes for lithium-oxygen batteries, Name: 2,5,8,11,14-Pentaoxapentadecane, the main research area is mesoporous carbon lithium oxygen battery elec conductivity; Carbon nanotube; Electrochemistry; Lithium–oxygen battery; Mesoporous carbon.

A rechargeable lithium-oxygen battery (LOB) operates via the electrochem. formation and decomposition of solid-state Li2O2 on the cathode. The rational design of the cathode nanoarchitectures is thus required to realize high-energy-d. and long-cycling LOBs. Here, we propose a cathode nanoarchitecture for LOBs, which is composed of mesoporous carbon (MPC) integrated with carbon nanotubes (CNTs). The proposed design has the advantages of the two components. MPC provides sufficient active sites for the electrochem. reactions and free space for Li2O2storage, while CNT forests serve as conductive pathways for electron and offer addnl. reaction sites. Results show that the synergistic architecture of MPC and CNTs leads to improvements in the capacity ( ~18,400 mAh g- 1), rate capability, and cyclability (~200 cycles) of the CNT-integrated MPC cathode in comparison with MPC.

Nano Convergence published new progress about Current density. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Name: 2,5,8,11,14-Pentaoxapentadecane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhang, Yi-Peng published the artcileA porous framework infiltrating Li-O2 battery: a low-resistance and high-safety system, Application In Synthesis of 143-24-8, the main research area is lithium oxygen battery porous framework infiltrating.

Li-O2 batteries, which have attracted great attention because of their high energy d., suffer from issues such as flammability of organic liquid electrolytes, corrosion of the Li anode and the shuttling effect of redox mediators. Using inorganic solid-state electrolytes (SSEs) can solve such issues. But high resistance at the SSE-electrode interfaces in these batteries hinders their further development. In this study, a “”porous framework infiltrating (PFI)”” concept is proposed. The framework is created on the surface of a garnet Li6.4La3Zr1.4Ta0.6O12 (LLZTO) ceramic by acid etching. After infiltrating a tiny amount of liquid electrolyte, this framework exhibits nonflammability and is thus ideal for high-safety applications. Moreover, the porous structure increases the contact area between the SSE and cathode, which can lower the interfacial resistance and improve the rate capability. Utilizing a Li-Sn alloy anode, the PFI Li-O2 battery exhibits smooth charging platforms with different rates, a prolonged cycle life and a promising round-trip efficiency. Therefore, the PFI structure provides a new strategy to build safe and high-performance Li-O2 batteries.

Sustainable Energy & Fuels published new progress about Current density. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application In Synthesis of 143-24-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ue, Makoto published the artcileMaterial balance in the O2 electrode of Li-O2 cells with a porous carbon electrode and TEGDME-based electrolytes, COA of Formula: C10H22O5, the main research area is O2electrode porous carbon electrode TEGDME electrolyte.

This work figures out the material balance of the reactions occurring in the O electrode of a Li-O cell, where a Ketjenblack-based porous carbon electrode comes into contact with a tetraethylene glycol di-Me ether (TEGDME)-based electrolyte under more practical conditions of less electrolyte amount and high areal capacity. The ratio of electrolyte weight to cell capacity (E/C, g A h) is a good parameter to correlate with cycle life. Only 5 cycles were obtained at an areal capacity of 4 mA h cm (E/C = 10) and a discharge/charge c.d. of 0.4 mA cm, which corresponds to the energy d. of 170 W h kg at a complete cell level. When the areal capacity was decreased to half (E/C = 20) by setting a c.d. at 0.2 mA cm, the cycle life was extended to 18 cycles. However, the total elec. charge consumed for parasitic reactions was 35 and 59% at the first and the third cycle, resp. This surprisingly large amount of parasitic reactions was suppressed by half using redox mediators at 0.4 mA cm while keeping a similar cycle life. Based on byproduct distribution, we will propose possible mechanisms of TEGDME decomposition and report a water breathing behavior, where HO is produced during charge and consumed during discharge.

RSC Advances published new progress about Current density. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, COA of Formula: C10H22O5.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Sultana, Fozia published the artcileAn innovative approach towards the simultaneous enhancement of the oxygen reduction and evolution reactions using a redox mediator in polymer based Li-O2 batteries, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is lithium oxygen battery cathode redox mediator polymer electrolyte.

For safety concerns, polymer-based Li-O2 batteries have received more attention than traditional non-aqueous Li-O2 batteries. However, poor cycling stability, low round trip efficiency, and over charge potential during cycling are the major shortcomings for their future applications. In this work, a soluble redox mediator integrated into a polymer electrolyte provides immediate access to the solid discharged product, lowering the energy barrier for reversible Li2O2 generation and disintegration. Moreover, introducing a redox mediator to the polymer electrolyte boosts the ORR during discharge and the OER during the recharge process. The synergistic redox mediator pBQ (1,4-benzoquinone) dramatically reduces the over-potential. A small proportion of pBQ in the polymer electrolyte allows Li2O2 to develop in a thin film-like morphol. on the cathode surface, resulting in a high reversible capacity of ∼12 000 mA h g-1 and an extended cycling stability of 100 cycles at 200 mA g-1 with a cut-off capacity of 1000 mA h g-1. The remarkable cell performance is attributed to the fast kinetics of para-benzoquinone for the ORR and OER in Li-O2 batteries. The use of a redox mediator in a polymer electrolyte opens a new avenue for practical Li-O2 battery applications in achieving low charge potential and excellent energy efficiency.

Dalton Transactions published new progress about Battery anodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Globa, N. I. published the artcileEnhancing of electrochemical characteristics of Li-S system by means of optimization of sulfur electrode and electrolyte composition, Category: ethers-buliding-blocks, the main research area is lithium sulfur battery galvanostatic cycling optimization electrode.

The article discusses the influence of technol. parameters of sulfur electrodes and the concentration composition of the saltsolvation electrolytes TEGDME – LiTFSI on the specific characteristics of Li-S cells obtained under galvanostatic cycling conditions. The dependences of the specific capacity on the composition of the cathode, the charge-discharge c.d., as well as capacity retention upon storage are discussed.

ECS Transactions published new progress about Battery cathodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Category: ethers-buliding-blocks.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem