Category: 143-24-8

Leick, Noemi published the artcileThermal stability and structural studies on the mixtures of Mg(BH4)2 and glymes, Computed Properties of 143-24-8, the main research area is magnesium borohydride glyme mixture thermal stability.

Coordination complexes of Mg(BH4)2 are of interest for energy storage, ranging from hydrogen storage in BH4 to electrochem. storage in Mg based batteries. Understanding the stability of these complexes is crucial since storage materials are expected to undergo multiple charging and discharging cycles. To do so, we examined the thermal stabilities of the 1 : 1 mixtures of Mg(BH4)2 with different glymes by DSC-TGA, TPD-MS and powder XRD anal. Despite their structural similarities, these mixtures show diverse phase transitions, speciations and decomposition pathways as a function of linker length.

Dalton Transactions published new progress about Crystallinity. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Computed Properties of 143-24-8.

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

Li, Chao-Le published the artcileA Low-Volatile and Durable Deep Eutectic Electrolyte for High-Performance Lithium-Oxygen Battery, Related Products of ethers-buliding-blocks, the main research area is low volatile durable deep eutectic electrolyte high performance lithium.

The lithium-oxygen battery (LOB) with a high theor. energy d. (~3500 Wh kg-1) has been regarded as a strong competitor for next-generation energy storage systems. However, its performance is still far from satisfactory due to the lack of stable electrolyte that can simultaneously withstand the strong oxidizing environment during battery operation, evaporation by the semiopen feature, and high reactivity of lithium metal anode. Here, we have developed a deep eutectic electrolyte (DEE) that can fulfill all the requirements to enable the long-term operation of LOBs by just simply mixing solid N-methylacetamide (NMA) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) at a certain ratio. The unique interaction of the polar groups in the NMA with the cations and anions in the LiTFSI enables DEE formation, and this NMA-based DEE possesses high ionic conductivity, good thermal, chem., and electrochem. stability, and good compatibility with the lithium metal anode. As a result, the LOBs with the NMA-based DEE present a high discharge capacity (8647 mAh g-1), excellent rate performance, and superb cycling lifetime (280 cycles). The introduction of DEE into LOBs will inject new vitality into the design of electrolytes and promote the development of high-performance LOBs.

Journal of the American Chemical Society published new progress about Crystallinity. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Related Products of ethers-buliding-blocks.

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

Guan, Khor Hock published the artcileInfluence of tetraglyme towards magnesium salt dissociation in solid polymer electrolyte for electric double layer capacitor, Quality Control of 143-24-8, the main research area is solid polymer electrolyte tetraglyme magnesium elec double layer capacitor.

Most of commercialized elec. double layer capacitors (EDLCs) with liquid electrolyte are bulky, non-flexible and unsafe which require solid polymer electrolyte (SPE) as the replacement. Herein, SPE containing tetraglyme as the ionic conductivity booster was prepared in which polyvinyl alc. (PVA), magnesium trifluoromethane sulfonate (Mg (Tf)2) and tetraglyme (TEDGME) have been utilized as the host polymer, salt and additive, resp. After the addition of TEDGME, the SPE exhibited a significant boost in ionic conductivity from 1.43 x 10-9 to 3.10 x 10-5 S cm-1. This is attributed to the presence of multiple ether oxygen atom functional group from TEDGME that provides more charge carriers. Fourier transform IR spectroscopy authenticates the formation of complex within the SPE systems which indicates the formation of good interaction between the host polymer and the salts. X-ray diffraction anal. demonstrates the reduction in crystallinity of the SPE after the addition of TEDGME which is beneficial for the ion diffusion. The maximum specific capacitance achieved by the EDLC employing the SPE incorporated with TEDGME is 6.34 F/g at 0.04 A/g, with the rate capability of 74.1%.

Journal of Polymer Research published new progress about Crystallinity. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Quality Control of 143-24-8.

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

Sakamoto, Shuhei published the artcileElectrochemical properties of lithium air secondary batteries incorporating manganese salen complex as soluble catalyst for nonaqueous electrolyte solutions, Name: 2,5,8,11,14-Pentaoxapentadecane, the main research area is lithium air secondary battery manganese salen complex electrochem property.

Manganese-containing salen-type complexes of (R,R)-(-)-N,N’-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminomanganese(III) chloride (MnSl) were examined as a novel soluble catalyst in nonaqueous electrolyte solutions for lithium air secondary batteries (LABs). The LAB cells with MnSl exhibited a larger first discharge capacity and better cycle performance (893 mAh g-1, 738 mAh g-1 up to 10 cycles) than those without MnSl. Attenuated total reflection Fourier transform IR spectroscopy (ATR-FTIR) conducted during the discharge/charge cycle showed deposition and decomposition of the discharge product, Li2O2, on the surface of the air electrode. Cyclic voltammetry results suggested that MnSl promotes the oxygen reduction reaction and oxygen evolution reaction because of its high reactivity with O2.

Electrochemistry (Tokyo, Japan) published new progress about Decomposition. 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

Barghamadi, Marzieh published the artcileIn situ synchrotron XRD and sXAS studies on Li-S batteries with ionic-liquid and organic electrolytes, Product Details of C10H22O5, the main research area is Lithium sulfur batteries ionic liquid electrolytes.

Lithium-sulfur (Li-S) batteries are a promising technol. capable of reaching high energy d. of 500-700 Wh kg-1, however the practically achievable performance is still lower than this value. This hindrance can be attributed to a lack of understanding of the fundamental electrochem. processes during Li-S battery cycling, in particular the so-called redox shuttle effect which is due to the relatively high solubility of polysulfide intermediates in the electrolyte. Herein, the effects of LiNO3 as an additive as well as C4mpyr-based ionic liquids (ILs) in electrolyte formulations for Li-S cells are analyzed using in situ X-ray powder diffraction (XRD) and ex situ soft X-ray absorption spectroscopy (sXAS) techniques. While LiNO3 is known for its protective properties on the lithium anode in Li-S cells, our studies have provided further evidence for suppression of Li2S deposition when using LiNO3 as an additive, as well as affecting the solid electrolyte interphase (SEI) layer at a mol. level. Moreover, the detected sulfur species on the surface of the anode and cathode, after a few cycles are compared for IL and organic-based electrolytes.

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

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

Du, Kang published the artcileInvestigations of Thermal Stability and Solid Electrolyte Interphase on Na2Ti3O7/C as a Non-carbonaceous Anode Material for Sodium Storage Using Non-flammable Ether-based Electrolyte, Product Details of C10H22O5, the main research area is sodium ion battery titanium oxide carbon anode electrolyte; anode; carbonate-based electrolyte; non-flammable electrolyte; sodium-ion battery; solid electrolyte interphase; tetraglyme.

In order to become com. viable, sodium-ion batteries need to deliver long cycle life with good capacity and energy d. while still ensuring safety. Electrolyte plays a key role forming solid electrolyte interphase (SEI) layers at low potential, which affects the thermal stability and cycle life of the anode materials under consideration. In this study, an ether-based non-flammable electrolyte, 1 M NaBF4 in tetraglyme, is tested for sodium storage using a non-carbonaceous anode material Na2Ti3O7/C, and the results are compared with those obtained with the popularly used carbonate-based electrolyte, 1 M NaClO4 in ethylene carbonate (EC) and propylene carbonate (PC) (volume/volume = 1:1). The Na2Ti3O7/C vs. Na cells using 1 M NaBF4 in tetraglyme show a much higher first cycle Coulombic efficiency (73%) than those using 1 M NaClO4 in EC/PC (33%). Thermal stability studies using differential scanning calorimetry (DSC) conclusively show that Na2Ti3O7/C electrodes cycled with 1 M NaBF4 in tetraglyme are more thermally stable than the one cycled with 1 M NaClO4 in EC/PC. Further investigations on the formation of SEI layers were performed using attenuated total reflection-Fourier transform IR spectroscopy, field-emission SEM, transmission electron microscopy, energy-dispersive X-ray spectroscopy, electrochem. impedance spectroscopy, and DSC studies. These studies unambiguously demonstrate that the SEI formed on Na2Ti3O7/C using 1 M NaBF4 in tetraglyme is not only less resistive but also more stable than the SEI formed using 1 M NaClO4 in EC/PC.

ACS Applied Materials & Interfaces 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, Product Details of C10H22O5.

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

Kim, Jeongmin published the artcileInterfacial Electron Transfer and Ion Solvation in the Solid Electrolyte Interphase, Synthetic Route of 143-24-8, the main research area is interfacial electron transfer ion solvation battery solid electrolyte interphase; atomic resolution simulation solid polymer liquid electrolyte solvation.

As a chem. and structurally well-defined model for redox processes in the solid electrolyte interphase of battery electrodes, we investigate electron transfer (ET) to lithium ions at the interface between a platinum metal anode and a solid polymer electrolyte. Studied electrolytes include LiTFSI (lithium bis(trifluoromethane)sulfonimide) salts in polyethylene oxide and poly(diethylene oxide-alt-oxymethylene), as well as in the associated liquid electrolytes 1,2-dimethoxyethane and tetraglyme. Atomic-resolution simulations are performed with constant-potential polarizable electrodes to characterize interfacial ET kinetics, including lithium-ion solvation structures and solvent reorganization effects as a function of applied electrode potential. The linear-response assumptions of the Marcus theory for ET are found to be robust in these systems, yet ion-solvation behavior at the anode interface is strikingly dependent on chain connectivity, solvation environment, and the magnitude of the applied electrode potential, resulting in very different ET kinetics for lithium electroreduction

Journal of Physical Chemistry C 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, Synthetic Route of 143-24-8.

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

Su, N. C. published the artcilePotential complexes of NaCF3SO3-tetraethylene dimethyl glycol ether (tetraglyme)-based electrolytes for sodium rechargeable battery application, HPLC of Formula: 143-24-8, the main research area is sodium trifluoromethanesulfonate rechargeable battery.

The increasing energy demand on available global lithium resources has created concerns on development of new and advanced sustainable energy sources. Sodium-based batteries have emerged as promising substitutions to Li-based batteries. We describe here sodium trifluoromethanesulfonate (NaCF3SO3) electrolyte system based on tetraethylene glycol di-Me ether (tetraglyme). The ionic conductivity of the electrolytes showed a maximum value of 1.6 mS cm-1 for 40 mol% of NaCF3SO3 at room temperature and increased up to of 9.5 mS cm-1 at 373 K. The system showed the anodic stability of the electrolytes up to ca. 5.2 V (Na+/Na) and facile deposition of sodium began at relatively low overpotential, around – 0.01 V vs. Na+/Na, which showed a good reversibility of the electrolytes. Preliminary tests of the electrolyte in half sodium-ion cells employing Na3V2(PO4)3 as cathode electrodes were performed and the cells delivered capacity of 74 mAh g-1 at C/10.

Ionics 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, HPLC of Formula: 143-24-8.

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

Zhang, Tao published the artcileBuilding high performance silicon-oxygen and silicon-sulfur battery by in-situ lithiation of fibrous Si/C anode, Application In Synthesis of 143-24-8, the main research area is silicon oxygen sulfur battery inSitu lithiation fibrous carbon anode.

Using Li metal-free anodes for Li-ion oxygen and Li-ion S batteries is considered as a promising solution to resolve the hazard of Li metal anode. Although Si anode exhibits high capacity and low electrochem. potential, it cannot match with O (or S) cathode, because both lack cycleable Li ions. Here, a free-standing and fibrous Si/C anode is prepared by electrospinning and its simple but effective lithiation is proposed. When assembling the cells, the free-standing Si/C anode was put between mass-controlled lithium metal foil and separator, and then the Si/C anode could be lithiated after adding electrolytes. By optimizing a LiFSI based ether electrolyte, the Si/C anode could achieve good cycleablity comparable to that in carbonate electrolytes. The lithiated Si-O cells exhibit better cycling stability than the Li-O cells with gel polymer electrolyte. Because both Si anode and S@pPAN cathode are compatible with carbonate electrolytes, exceptional cycling performance has been achieved for the lithiated Si-S cells. This simple method could pave the way to com. applications of Li-ion O and Li-ion S batteries.

Journal of Alloys and Compounds 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, Application In Synthesis of 143-24-8.

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

Hu, Yi-Yang published the artcileLi0.5PAA domains filled in porous sodium alginate skeleton: A 3D bicontinuous composite network binder to stabilize micro-silicon anode for high-performance lithium ion battery, Quality Control of 143-24-8, the main research area is lithium PAA domain filled porous sodium alginate skeleton; bicontinuous composite network binder silicon anode lithium battery.

An important strategy to improve energy d. of Li-ion batteries is to substitute the traditional graphite anode by Si-based anode which is endowed with ultra-high theor. specific capacity. However, the commercialization of Si anodes is hindered by its huge volume variation that results in electrode pulverization. In the current study, the authors fill up the pores of Na alginate (SA) network with lithiated polyacrylic acid (LixPAA) to form a cross-linked bicontinuous composite network binder (b-Li0.5PAA@SA), in which the pores of the SA skeleton are dominated with the Li0.5PAA domains; within such composite the SA and Li0.5PAA interlock tightly each other via extensive interfacial ester bonding. The resulting b-Li0.5PAA@SA network binder can effectively buffer the volume variation of Si microparticles (m-Si) during repeating cycling and prevent pulverization of the electrode, which is evidenced by a cycling capacity of 2762 mAh g-1 in the 1st cycle and a retention of 1584 mAh g-1 after 150 cycles. As a comparison, the m-Si electrode with only SA binder suffers from fatal capacity degradation after merely 20 cycles under the same conditions. Also, since the Li0.5PAA domains are ionic conductive and significantly reduce the porosity of the SA network, the b-Li0.5PAA@SA network binder could also enable a stable solid electrolyte interphase (SEI) film and fast electron/ion transfer, leading to an enhanced rate capability of the m-Si anodes.

Electrochimica Acta 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, Quality Control of 143-24-8.

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