Tag: M.W=200-250

Matsuda, Shoichi published the artcileHighly Efficient Oxygen Evolution Reaction in Rechargeable Lithium-Oxygen Batteries with Triethylphosphate-Based Electrolytes, Product Details of C10H22O5, the main research area is lithium oxygen battry triethylphosphate based electrolyte.

Aprotic lithium-oxygen (Li-O2) batteries are promising candidates for next-generation energy storage devices because of their much higher potential energy d. than Li-ion batteries. However, the practical application of rechargeable Li-O2 batteries has been limited by poor cycle performance, especially the side reactions that lower the oxygen reaction efficiency at the pos. electrode. The present study demonstrated that when the triethylphosphate-based electrolyte contains lithium nitrate and triethylphosphate forms a solvated complex by coordinating with Li ions, the O2 evolution rate could reach almost 100% of that of the ideal two-electron reaction (O2/e- = 0.5) during the most part of the charging process, with the total oxygen evolution yield exceeding 90%. These results are useful for designing electrolytes for rechargeable Li-O2 batteries with high energy densities.

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, Product Details of C10H22O5.

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

Zhang, Zhang published the artcileLi-N2 Batteries: A Reversible Energy Storage System?, Safety of 2,5,8,11,14-Pentaoxapentadecane, the main research area is battery energy storage graphene nitrogen fixation surface analysis; batteries; energy storage; graphene; nitrogen fixation; surface analysis.

Tremendous energy consumption is required for traditional artificial N2 fixation, leading to addnl. environmental pollution. Recently, new Li-N2 batteries have inextricably integrated energy storage with N2 fixation. In this work, graphene is introduced into Li-N2 batteries and enhances the cycling stability. However, the instability and hygroscopicity of the discharge product Li3N lead to a rechargeable but irreversible system. Moreover, strong nonpolar N N covalent triple bonds with high ionization energies also cause low efficiency and irreversibility of Li-N2 batteries. In contrast, the modification with in situ generated Li3N and LiOH restrained the loss and volume change of Li metal anodes during stripping and plating, thereby promoting the rechargeability of the Li-N2 batteries. The mechanistic study here will assist in the design of more stable Li-N2 batteries and create more versatile methods for N2 fixation.

Angewandte Chemie, International Edition 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, Safety of 2,5,8,11,14-Pentaoxapentadecane.

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

Liu, Ying published the artcileEnabling Stable Interphases via In Situ Two-Step Synthetic Bilayer Polymer Electrolyte for Solid-State Lithium Metal Batteries, SDS of cas: 143-24-8, the main research area is bilayer polymer electrolyte interphase solid state lithium metal battery.

Poly(ethylene oxide) (PEO)-based electrolyte is considered to be one of the most promising polymer electrolytes for lithium metal batteries. However, a narrow electrochem. stability window and poor compatibility at electrode-electrolyte interfaces restrict the applications of PEO-based electrolyte. An in situ synthetic double-layer polymer electrolyte (DLPE) with polyacrylonitrile (PAN) layer and PEO layer was designed to achieve a stable interface and application in high-energy-d. batteries. In this special design, the hydroxy group of PEO-SPE can form an O-H—N hydrogen bond with the cyano group in PAN-SPE, which connects the two layers of DLPE at a microscopic chem. level. A special Li+ conducting mechanism in DLPE provides a uniform Li+ flux and fast Li+ conduction, which achieves a stable electrolyte/electrode interface.LiFePO4/DLPE/Li battery shows superior cycling stability, and the coulombic efficiency remains 99.5% at 0.2 C. Meanwhile, LiNi0.6Co0.2Mn0.2O2/DLPE/Li battery shows high specific discharge capacity of 176.0 mAh g-1 at 0.1 C between 2.8 V to 4.3 V, and the coulombic efficiency remains 95% after 100 cycles. This in situ synthetic strategy represents a big step forward in addressing the interface issues and boosting the development of high-energy-d. lithium-metal batteries.

Inorganics 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

Park, Jehee published the artcileHybridization of cathode electrochemistry in a rechargeable seawater battery: Toward performance enhancement, HPLC of Formula: 143-24-8, the main research area is seawater battery energy efficiency solid electrolyte electrocatalyst; elec double layer capacitance.

Seawater batteries (SWBs) are promising energy storage systems for the future because of their eco-friendly utilization of abundant seawater as low-cost sources of Na ion active cathode materials. However, the overall efficiency (i.e. voltage and/or energy efficiency) and power performance of SWBs are limited by the sluggish kinetics of the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) on the current collector of the SWB cathode. Generally, the charge storage and delivery process through the elec. double layer (EDL) are much faster compared to OER/ORR and other Faradic reactions. To improve the performance of SWBs, we utilized the benefit of EDL formation along with OER/ORR activities using com. high surface area (∼2038 m2 g-1) and hydrophilic activated carbon cloth (ACC) as a current collector at the cathode. As anticipated, the SWB with ACC showed a reduced voltage gap (0.49 V), high energy efficiency (86%), improved rate capability, and improved power performance (16.2 mW cm-2) compared to those of the SWB operated with lower surface area carbon felt (2.2 m2 g-1, 1.24 V, 71%, and 5.5 mW cm-2, resp.). These findings suggest that hybridization of the EDL and OER/ORR processes on the cathode side of SWB can improve overall performance.

Journal of Power Sources 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

Yao, Yu published the artcileA Dual-Functional Conductive Framework Embedded with TiN-VN Heterostructures for Highly Efficient Polysulfide and Lithium Regulation toward Stable Li-S Full Batteries, SDS of cas: 143-24-8, the main research area is titanium nitride vanadium mononitride electrode lithium sulfur battery; Li dendrite; Li-S full battery; TiN-VN heterostructure; chemisorption; electrocatalysis.

Li-S (Li-S) batteries are strongly considered as next-generation energy storage systems because of their high energy d. However, the shuttling of Li polysulfides (LiPS), sluggish reaction kinetics, and uncontrollable Li-dendrite growth severely degrade the electrochem. performance of Li-S batteries. Herein, a dual-functional flexible free-standing C nanofiber conductive framework in situ embedded with TiN-VN heterostructures (TiN-VN@CNFs) as an advanced host simultaneously for both the S cathode (S/TiN-VN@CNFs) and the Li anode (Li/TiN-VN@CNFs) is designed. As cathode host, the TiN-VN@CNFs can offer synergistic function of phys. confinement, chem. anchoring, and superb electrocatalysis of LiPS redox reactions. Meanwhile, the well-designed host with excellent lithiophilic feature can realize homogeneous Li deposition for suppressing dendrite growth. Combined with these merits, the full battery (denoted as S/TiN-VN@CNFs || Li/TiN-VN@CNFs) exhibits remarkable electrochem. properties including high reversible capacity of 1110 mA-h g-1 after 100 cycles at 0.2 C and ultralong cycle life over 600 cycles at 2 C. Even with a high S loading of 5.6 mg cm-2, the full cell can achieve a high areal capacity of 5.5 mA-h cm-2 at 0.1 C. This work paves a new design from theor. and exptl. aspects for fabricating high-energy-d. flexible Li-S full batteries.

Advanced Materials (Weinheim, Germany) 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

Subasinghe, Lihil Uthpala published the artcileA study on heat generation characteristics of Na3V2(PO4)3 cathode and hard carbon anode-based sodium-ion cells, Application In Synthesis of 143-24-8, the main research area is heat generation sodium vanadium phosphate cathode; hard carbon anode sodium ion cells.

We report here the heat generation and impedance characteristics of prototype 18650-sized sodium-ion cells using pristine Na3V2(PO4)3 (P-NVP) and modified Na3.2V1.8Zn0.2(PO4)3 (M-NVP) cathodes, hard carbon (HC) anode and an ether-based non-flammable electrolyte, 1 M NaBF4 in tetraglyme. Comparison of calorimetric studies performed on 18650-sized cells reveals lower heat generation in M-NVP vs. HC compared to P-NVP vs. HC owing to low internal resistance achieved as a result of Zn2+ doping in M-NVP. Both irreversible heat generation arose due to internal resistance and reversible heat generation caused by entropic changes in the electrode materials are elucidated. Furthermore, variation in subcomponents of internal resistance in both 18650-sized full cells and CR2016-sized half-cells is analyzed by fitting electrochem. impedance spectra into equivalent circuit models. Individual contributions of anode and cathode to the impedance characteristics of the cells are determined by analyzing impedance data of the half-cells using the distribution of relaxation times method. The results reveal lower diffusion resistance, as well as charge transfer resistance in M-NVP cells compared to P-NVP counterpart, accounting for the observed lower total internal resistance in M-NVP vs. HC and thus lower heat generation in M-NVP vs. HC cell than P-NVP vs. HC cell.

Journal of Thermal Analysis and Calorimetry 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

Li, Jiabao published the artcileTuning oxygen non-stoichiometric surface via defect engineering to promote the catalysis activity of Co3O4 in Li-O2 batteries, Computed Properties of 143-24-8, the main research area is oxygen vacancy electronic structure free standing electrode cobalt oxide; catalyst defect engineering lithium oxygen battery.

The performance of Li-O2 battery is governed by the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) kinetics. Adjusting the surface property of catalysts via defect engineering will inaugurate a new complexion on developing efficient oxygen electrodes. In this work, a novel strategy of creating rich oxygen vacancy in Co3O4 is developed via cerium incorporation. The oxygen vacancy in Ce-Co3O4 not only promotes charge migration due to the formation of unsaturated coordination sites where electrons become delocalized but also acts as active site to anchor O2 and Li2O2 thereby leading to synergic enhancement of ORR and OER kinetics. The low overpotential (0.9 V), large specific capacity (8250 mAh g-1) and extended cycling life of the Ce-Co3O4 based Li-O2 battery exptl. confirm its superior bifunctional catalytic activity. This relationship between surface properties and catalytic activity established by defect engineering can serve as an innovative strategy for guiding the further development of high performance electrode materials for Li-O2 batteries in the foreseeable future.

Chemical Engineering Journal (Amsterdam, Netherlands) 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, Computed Properties of 143-24-8.

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

Zakharchenko, Tatiana K. published the artcilePositive Electrode Passivation by Side Discharge Products in Li-O2 Batteries, Recommanded Product: 2,5,8,11,14-Pentaoxapentadecane, the main research area is pos electrode passivation side discharge product lithium oxygen battery.

The development of high specific energy Li-O2 batteries faces a problem of poor cycling as a result of passivation of the pos. electrode by both the discharge product (Li2O2) and side products (Li2CO3, etc.). The latter are the result of oxidation of the electrode materials or electrolyte components primarily by discharge intermediate superoxide anions (O2-) and, in less degree, by Li2O2. We report cyclic voltammetry studies of the electrode passivation in different relatively stable solvents. We found that slower passivation is observed for the electrolytes based on high donor number solvents or solvents with high viscosity. Moreover, such behavior is reproduced for three different electrode materials [glassy carbon (GC), TiC, and TiN] that pinpoints the primary role of different oxygen reduction reaction mechanisms (Li2O2 surface deposition or solution growth) influenced by Li+ solvation energy and solvent viscosity. The chem. of interaction between LiO2/Li2O2 and the electrode/solvent turns out to be less important. Addnl., we found that, for the electrode made of GC and TiN in all electrolyte solutions, the passivation by side products suppresses oxygen reduction after a certain number of cycles. In contrast, for TiC after several cycles, further passivation does not happen as a result of the formation of a thin and stable TiO2 layer in high donor number solvents.

Langmuir 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

Pichaimuthu, Karthika published the artcileMolybdenum Disulfide/Tin Disulfide Ultrathin Nanosheets as Cathodes for Sodium-Carbon Dioxide Batteries, Application In Synthesis of 143-24-8, the main research area is molybdenum disulfide tin nanosheet cathode sodium carbon dioxide battery; MoS2/SnS2 cathode; Na−CO2 batteries; catalytic activity; overpotential; sulfur vacancies.

Metal-CO2 rechargeable batteries are of great importance due to their higher energy d. and carbon capture capability. In particular, Na-CO2 batteries are potential energy-storage devices that can replace Li-based batteries due to their lower cost and abundance. However, because of the slow electrochem. processes owing to the carbonated discharge products, the cell shows a high overpotential. The charge overpotential of the Na-CO2 battery increases because of the cathode catalyst’s inability to break down the insulating discharge product Na2CO3, thereby resulting in poor cycle performance. Herein, we develop an ultrathin nanosheet MoS2/SnS2 cathode composite catalyst for Na-CO2 battery application. Insertion of SnS2 reduces the overpotential and improves the cyclic stability compared to pristine MoS2. As shown by a cycle test with a restricted capacity of 500 mAh/g at 50 mA/g, the battery is stable up to 100 discharge-charge cycles as the prepared catalyst successfully decomposes Na2CO3. Furthermore, the battery with the MoS2/SnS2 cathode catalyst has a discharge capacity of 35 889 mAh/g. The reasons for improvements in the cycle performance and overpotential of the MoS2/SnS2 composite cathode catalyst are examined by a combination of Raman, XPS, and extended X-ray absorption fine structure anal., which reveals an underneath phase transformation and changes in the local at. environment to be responsible. SnS2 incorporation induces S-vacancies in the basal plane and 1T character in 2H MoS2. This combined impact of SnS2 incorporation results in undercoordinated Mo atoms. Such a change in the electronic structure and the phase of the MoS2/SnS2 composite cathode catalyst results in higher catalytic activity and reduces the cell overpotential.

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, Application In Synthesis of 143-24-8.

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

Wu, Qingping published the artcileAdenine Derivative Host with Interlaced 2D Structure and Dual Lithiophilic-Sulfiphilic Sites to Enable High-Loading Li-S Batteries, Safety of 2,5,8,11,14-Pentaoxapentadecane, the main research area is adenine derivative interlaced 2D structure dual lithiophilic sulfiphilic site; cobalt nitrogen codoped carbon lithium sulfur battery; Co/N-codoped carbon; adenine derivative host; high-loading Li−S batteries; interlaced 2D structure; lithiophilic−sulfiphilic sites.

How to simultaneously restrain the loss of active species and facilitate the conversion reaction under high S loading condition is the key to solve the commercialization of Li-S batteries. For this system, the availability of raw materials and simplicity (high efficiency) of synthetic strategies are also important factors. Herein, we propose an interlaced two-dimensional (2D) carbon material as advanced Li-S cathode host characterized by corrugated monolithic morphol. and Co/N dopants as dual lithiophilic-sulfiphilic sites. This 2D structure is derived from a cheap biomass precursor, adenine, with bonding interaction with a MgCl2 hydrate template via a facile ionothermal method. It allows a homogeneous spatial distribution of S/Li2S deposits and strong adsorbability and enhanced conversion kinetics for polysulfides. Benefiting from the synergistic effects of corrugated 2D conductive matrix and embedded heteroatom/nanodot catalyst, the resultant sulfur cathode releases a high specific capacity of 1290.4 mA h g-1 at 0.2 C, small capacity fading rate of 0.029% per cycle over 600 cycles at 2 C, superior rate performance up to 20 C, and considerable areal capacity retention of 6.0 mA h cm-2 even under an ultrahigh sulfur loading up to 9.7 mg cm-2.

ACS Nano 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, Safety of 2,5,8,11,14-Pentaoxapentadecane.

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