Month: December 2022

Hyun, Suyeon published the artcilePd nanoparticles deposited on Co(OH)2 nanoplatelets as a bifunctional electrocatalyst and their application in Zn-air and Li-O2 batteries, Computed Properties of 143-24-8, the main research area is palladium cobalt hydroxide bifunctional electrocatalyst zinc lithium oxygen battery.

The development of affordable electrocatalysts for both oxygen reduction and evolution reactions (ORR/OER) has received great interest due to their importance in metal-air batteries and regenerative fuel cells. We developed a high-performance bifunctional oxygen electrocatalyst based on Pd nanoparticles supported on cobalt hydroxide nanoplatelets (Pd/Co(OH)2) as an air cathode for metal-air batteries. The Pd/Co(OH)2 shows remarkably higher electrocatalytic activity in comparison with com. catalysts (Pt/C, IrO2), including an ORR half-wave potential (E1/2) of 0.87 V vs. RHE and an OER overpotential of 0.39 V at 10 mA cm-2 in aqueous alk. medium. The Zn-air battery constructed with Pd/Co(OH)2 presents stable charge/discharge voltage (ΔEOER-ORR = 0.69 V), along with durable cycling stability for over 30 h. Also, this cathode exhibits a maximum discharge capacity of 17 698 mA h g-1, and stable battery operation over 50 cycles at a fixed capacity of 1000 mA h g-1, as an efficient air electrode for Li-O2 batteries, indicating that Pd/Co(OH)2 can be a potential candidate for both aqueous and non-aqueous metal-air batteries.

Nanoscale published new progress about Binding energy. 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

Guo, Huanhuan published the artcileStable Lithium Anode of Li-O2 Batteries in a Wet Electrolyte Enabled by a High-Current Treatment, COA of Formula: C10H22O5, the main research area is lithium anode secondary battery electrolyte current treatment.

Rechargeable Li-air (O2) batteries have attracted a great deal of attention because of their high theor. energy d. and been regarded as a promising next-generation energy storage technol. Among numerous obstacles to Li-air (O2) batteries preventing their use in practical applications, H2O is a representative impurity for Li-air (O2), which could hasten the deterioration of the anode and accelarate the premature death of cells. Here, the authors report an effective in situ high-current pretreatment process to enhance the cycling performance of Li-O2 batteries in a wet tetraethylene glycol di-Me ether-based electrolyte. With the help of certain levels of H2O (from 100 to 2000 ppm) in the electrolyte, adequate Li2O formed on the Li anode surface after high-current pretreatment, which is necessary for a robust and uniform solid electrolyte interphase layer to protect Li metal during the long-term discharge-charge cycling process. This in situ high-current pretreatment method in a wet electrolyte is an effective approach for enhancing the cycling performance of Li-O2 batteries with a stable Li metal anode and promoting the realization of practical Li-air batteries.

Journal of Physical Chemistry Letters 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

Guo, Huanhuan published the artcileFlexible rGO @ Nonwoven Fabrics’ Membranes Guide Stable Lithium Metal Anodes for Lithium-Oxygen Batteries, SDS of cas: 143-24-8, the main research area is graphene oxide nonwoven fabric membrane lithium oxygen battery anode.

Lithium-oxygen (Li-O2) batteries are outstanding as next-generation energy-storage devices because of their extremely high theor. specific energy d. However, their practical application is hindered by various issues from both unstable electrodes and electrolyte. Notably, the uncontrollable growth of a lithium dendrite and severe lithium pulverization deteriorates the practical energy d. and service life of Li-O2 batteries. Here we build a flexible protective membrane, which is reduced graphene oxide coated on nonwoven fabrics (rGO @ NWF), for a stable Li metal anode/electrolyte interface via a simple dipping-penetration and in situ electrochem. reduction strategy. The lowest lithium nucleation overpotential on rGO sheets results in the uniform lithium deposition behavior on the Li anode surface with the rGO protective nanofilm after different plating capacities, which is demonstrated by SEM anal. The cycling life of the Li-O2 cell with a rGO@NWF membrane extended to more than 500 cycles under the limited capacity of 500 mA h g-1, which is about 3-fold that of the pure Li anode. This work demonstrates a scalable approach to inhibit the growth of the lithium dendrite and corrosion of Li metal anodes by rGO nanofilm for long-term cycling Li-O2 batteries, holding an excellent potential for the development of other lithium metal batteries.

ACS Applied Energy Materials 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, SDS of cas: 143-24-8.

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

Haas, Ronja published the artcileUnderstanding transport of atmospheric gases in liquid electrolytes for lithium-air batteries, COA of Formula: C10H22O5, the main research area is atm gas transport liquid electrolyte lithium air battery.

In metal-air batteries, carbon dioxide (CO2) and nitrogen (N2) are, apart from oxygen (O2), also present as dissolved species in the liquid electrolyte. These dissolved gases can strongly influence the battery performance, as they affect the discharge mechanism and the stability of the lithium metal anode. Therefore, their solubility and diffusivity are important parameters, that are rarely considered in the development of electrolytes for metal-air batteries. Addnl., the diffusion coefficients are calculated through mol. dynamics simulations. The results agree well with the exptl. data. Furthermore, the influence of solvent parameters, such as surface tension and viscosity, on the solubility and the diffusivity as well as the impact of the addition of LiTFSI as conducting salt are investigated. The reported data will help to assess the impact of dissolved gases on the cell chem. of nonaqueous lithium-air batteries, especially on the solid electrolyte interphase (SEI) at the lithium anode, and to predict diffusivity and gas solubility in other electrolytes.

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, COA of Formula: C10H22O5.

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

Liu, Yangyang published the artcileElectro-Chemo-Mechanical Modeling of Artificial Solid Electrolyte Interphase to Enable Uniform Electrodeposition of Lithium Metal Anodes, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is lithium metal anode electrodeposition; electrochemomech modeling artificial solid electrolyte.

Nonuniform electrodeposition of lithium during charging processes is the key issue hindering development of rechargeable Li metal batteries. This deposition process is largely controlled by the solid electrolyte interphase (SEI) on the metal surface and the design of artificial SEIs is an essential pathway to regulate electrodeposition of Li. In this work, an electro-chemo-mech. model is built and implemented in a phase-field modeling to understand the correlation between the phys. properties of artificial SEIs and deposition of Li. The results show that improving ionic conductivity of the SEI above a critical level can mitigate stress concentration and preferred deposition of Li. In addition, the mech. strength of the SEI is found to also mitigate non-uniform deposition and influence electrochem. kinetics, with a Young’s modulus around 4.0 GPa being a threshold value for even deposition of Li. By comparison of the results to exptl. results for artificial SEIs it is clear that the most important direction for future work is to improve the ionic conductivity without compromising mech. strength. In addition, the findings and methodol. presented here not only provide detailed guidelines for design of artificial SEI on Li-metal anodes but also pave the way to explore strategies for regulating deposition of other metal anodes.

Advanced Energy Materials 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

Go, Wooseok published the artcileNanocrevasse-Rich Carbon Fibers for Stable Lithium and Sodium Metal Anodes, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is alkali metal carbon composite lithium anode sodium anode scaffold; Alkali metal carbon composite; Li metal anode; Na metal anode; carbon scaffold; scalable production.

Metallic lithium (Li) and sodium (Na) anodes have received great attention as ideal anodes to meet the needs for high energy d. batteries due to their highest theor. capacities. Although many approaches have successfully improved the performances of Li or Na metal anodes, many of these methods are difficult to scale up and thus cannot be applied in the production of batteries in practice. In this work, we introduce nanocrevasses in a carbon fiber scaffold which can facilitate the penetration of molten alkali metal into a carbon scaffold by enhancing its wettability for Li/Na metal. The resulting alkali metal/carbon composites exhibit stable long-term cycling over hundreds of cycles. The facile synthetic method is enabled for scalable production using recycled metal waste. Thus, the addition of nanocrevasses to carbon fiber as a scaffold for alkali metals can generate environmentally friendly and cost-effective composites for practical electrode applications.

Nano Letters 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

Ma, Jin-ling published the artcilePrevention of dendrite growth and volume expansion to give high-performance aprotic bimetallic Li-Na alloy-O2 batteries, HPLC of Formula: 143-24-8, the main research area is lithium sodium alloy oxygen battery dendrite growth volume expansion.

Rechargeable aprotic alkali metal (Li or Na)-O2 batteries are the subject of great interest because of their high theor. specific energy. However, the growth of dendrites and cracks at the Li or Na anode, as well as their corrosive oxidation lead to poor cycling stability and safety issues. Understanding the mechanism and improving Li/Na-ion plating and stripping electrochem. are therefore essential to realizing their technol. potential. Here, we report how the use of a Li-Na alloy anode and an electrolyte additive realizes an aprotic bimetal Li-Na alloy-O2 battery with improved cycling stability. Electrochem. investigations show that stripping and plating of Li and Na and the robust and flexible passivation film formed in situ (by 1,3-dioxolane additive reacting with the Li-Na alloy) suppress dendrite and buffer alloy anode volume expansion and thus prevent cracking, avoiding electrolyte consumption and ensuring high electron transport efficiency and continued electrochem. reactions.

Nature 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, HPLC of Formula: 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

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

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