Category: ethers-buliding-blocks

Ming, Jun published the artcileNew Insight on the Role of Electrolyte Additives in Rechargeable Lithium Ion Batteries, SDS of cas: 143-24-8, the main research area is electrolyte additive rechargeable lithium ion battery.

Solid electrolyte interphase (SEI)-forming agents such as vinylene carbonate, sulfone, and cyclic sulfate are commonly believed to be film-forming additives in lithium-ion batteries that help to enhance graphite anode stability. However, we find that the film-forming effect and the resultant SEI may not be the only reasons for the enhanced graphite stability. This is because the as-formed SEI cannot inhibit Li+-solvent co-intercalation once the additive is removed from the electrolyte. Instead, we show that the Li+ solvation structure, which is modified by these additives, plays a critical role in achieving reversible Li+ (de)intercalation within graphite. This discovery is confirmed in both carbonate and ether-based electrolytes. We show that the problem of graphite exfoliation caused by Li+-solvent co-intercalation can be mitigated by adding ethene sulfate to tune the Li+ coordination structure. This work brings new insight into the role of additives in electrolytes, expanding the prevailing thinking over the past 2 decades. This finding can guide the design of more versatile electrolytes for advanced rechargeable metal-ion batteries.

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

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

Drvaric Talian, Sara published the artcileEffect of high concentration of polysulfides on Li stripping and deposition, Application In Synthesis of 143-24-8, the main research area is lithium sulfur battery polysulfide catholyte stripping deposition dendrite prevention.

The direct reaction of polysulfide species with the Li metal anode causes several issues in the performance of lithium-sulfur batteries, from poor capacity utilization and fast capacity fade to poor Coulombic efficiency. Nevertheless, several reports indicate formation of favorable lithium SEI when allowing for its contact with polysulfides. With cycling tests, impedance spectroscopy measurements and morphol. investigation, we have confirmed the beneficial effect of polysulfides on lithium metal stripping and deposition even without LiNO3, which is usually added. Most importantly, highly concentrated catholytes, which are closer to the saturated solutions encountered in lean electrolyte-to-sulfur ratios, were tested. In the 1 M Li2S8 catholyte solution, its effect produced Li electrodes without dendritic growth, but rather a wrinkled surface. To circumvent the issue of viscosity in such solutions, pre-treatment in polysulfide solutions was also tested. The performance of such electrodes showed an increase in cycle life and lower overpotentials, although dendritic growth could not be fully avoided. In order to better understand the effect of pre-treatment on transport/reaction mechanism in Li electrode, a detailed anal. of selected impedance spectra is carried out using physics-based transmission line modeling (TLM).

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, Application In Synthesis of 143-24-8.

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

Xie, Jian-De published the artcileSuperior coulombic efficiency of lithium anodes for rechargeable batteries utilizing high-concentration ether electrolytes, Quality Control of 143-24-8, the main research area is lithium anode ether electrolyte rechargeable battery coulombic efficiency.

This study adopts high-concentration ether electrolytes to improve high-rate capability, cycling stability, and Coulombic efficiency (CE) for lithium ion batteries with lithium anode. A series of ether-based electrolytes including lithium bis(fluorosulfonyl)imide (LiFSI)-glyme/ethylene carbonate (EC), LiFSI-glyme/EC, LiFSI-diglyme/EC, LiFSI-triglyme/EC, LiFSI-tetraglyme (G4)/EC, and LiFSI-1,3-dioxolane (DOL)/EC, along with commonly used LiPF6-DEC/EC were prepared to delineate the influences of concentration, chain length, mol. structure (linear or ring ether), and EC additive on the electrochem. performance of Li anodes. An optimum composition for ether-based electrolyte was determined resulting in significant improvement in anti-flammability as well as CE at both low and high rates. At ultra-high c.d. operation (e.g. 6 mA cm-2), the CE was 95.5 and 97.1% with 3 M LiFSI-G4/EC and 3 M LiFSI-DOL/EC, resp. Using 1 M LiPF6 carbonate-based electrolyte tend to grow a needle-like dendritic structure when depositing lithium metal on Cu foils, whereas high-concentration ether electrolyte promotes a knot-like and rounded Li metal microstructure. High concentration EC-based electrolytes, are capable of facilitating Li+ almost in tandem with solvent mols., thereby reducing the number of free mols., reducing the chance of side reaction with Li metal, and subsequently inhibiting the formation of dendritic Li structures.

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

Liu, Xizheng published the artcilePrevention of Na Corrosion and Dendrite Growth for Long-Life Flexible Na-Air Batteries, Application In Synthesis of 143-24-8, the main research area is flexible NAB dendrite growth corrosion gel electrolyte modified anode.

Rechargeable Na-air batteries (NABs) based on abundant Na resources are generating great interest due to their high energy d. and low cost. However, Na anode corrosion in ambient air and the growth of abnormal dendrites lead to insufficient cycle performance and safety hazards. Effectively protecting the Na anode from corrosion and inducing the uniform Na plating and stripping are therefore of vital importance for practical application. We herein report a NAB with in situ formed gel electrolyte and Na anode with trace residual Li. The gel electrolyte is obtained within cells through crosslinking Li ethylenediamine at the anode surface with tetraethylene glycol di-Me ether (G4) from the liquid electrolyte. The gel can effectively prevent H2O and O2 crossover, thus delaying Na anode corrosion and electrolyte decomposition Na dendrite growth was suppressed by the electrostatic shield effect of Li+ from the modified Li layer. Benefiting from these improvements, the NAB achieves a robust cycle performance over 2000 h in opened ambient air, which is superior to previous results. Gelation of the electrolyte prevents liquid leakage during battery bending, facilitating greater cell flexibility, which could lead to the development of NABs suitable for wearable electronic devices in ambient air. The Na-air batteries have been developed with in situ formed gel electrolyte on a Li modified Na anode. They display ultrastable cycle performance up to 2000 h in ambient air.

ACS Central Science 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

Chen, Dongdong published the artcileIn Situ Preparation of Thin and Rigid COF Film on Li Anode as Artificial Solid Electrolyte Interphase Layer Resisting Li Dendrite Puncture, Product Details of C10H22O5, the main research area is artificial solid electrolyte interphase covalent organic frameworks; lithium dendrite lithium metal anode safety.

Metallic Li is considered the most promising anode material for high-energy d. batteries due to its high theor. capacity and low electrochem. potential. However, commercialization of the Li anode has been hampered by the safety issue associated with Li-dendrite growth resulting from uneven Li-ion deposition and an unstable solid electrolyte interphase (SEI). Herein, an in situ prepared 10 nm thin film of covalent organic framework (COF) uniformly covered on the Li anode (COF-Li) is used as an artificial SEI layer for Li plating/striping stabilization and Li dendrite inhibition. Abundant microcellular structures in the COF can redistribute the Li-ion flux and lead to the homogeneous plating/stripping process. Meanwhile, the superhard mech. properties and mech. behavior during needling of the ultrathin COF film is studied via the digital pulsed force mode equipped in at. force microscopy, illustrating a high Young’s modulus of 6.8 GPa that is strong enough to resist dendrite growth. As a result, stable cycling for 400 h is achieved in the COF-Li sym. cell at a c.d. of 1 mA cm-2, and the internal short circuit is effectively blocked by COF-Li in Li-S batteries.

Advanced Functional 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, Product Details of C10H22O5.

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

Li, Yaqi published the artcileFormation of an Artificial Mg2+-Permeable Interphase on Mg Anodes Compatible with Ether and Carbonate Electrolytes, Synthetic Route of 143-24-8, the main research area is magnesium ion battery anode ether carbonate electrolyte; TFSI− containing electrolyte; X-ray photoelectron spectroscopy (XPS); artificial SEI layer; carbonate electrolyte; ether electrolyte; magnesium batteries; near-edge X-ray absorption fine structure (NEXAFS); passivation layer.

Rechargeable Mg-ion batteries typically suffer from either rapid passivation of the Mg anode or severe corrosion of the current collectors by halogens within the electrolyte, limiting their practical implementation. Here, we demonstrate the broadly applicable strategy of forming an artificial solid electrolyte interphase (a-SEI) layer on Mg to address these challenges. The a-SEI layer is formed by simply soaking Mg foil in a tetraethylene glycol di-Me ether solution containing LiTFSI and AlCl3, with Fourier transform IR and UV-visible spectroscopy measurements revealing spontaneous reaction with the Mg foil. The a-SEI is found to mitigate Mg passivation in Mg(TFSI)2/DME electrolytes with sym. cells exhibiting overpotentials that are 2 V lower compared to when the a-SEI is not present. This approach is extended to Mg(ClO4)2/DME and Mg(TFSI)2/PC electrolytes to achieve reversible Mg plating and stripping, which is not achieved with bare electrodes. The interfacial resistance of the cells with a-SEI protected Mg is found to be two orders of magnitude lower than that with bare Mg in all three of the electrolytes, indicating the formation of an effective Mg-ion transporting interfacial structure. X-ray absorption and photoemission spectroscopy measurements show that the a-SEI contains minimal MgCO3, MgO, Mg(OH)2, and TFSI-, while being rich in MgCl2, MgF2, and MgS, when compared to the passivation layer formed on bare Mg in Mg(TFSI)2/DME.

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, Synthetic Route of 143-24-8.

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

Meng, Jintao published the artcileA Stirred Self-Stratified Battery for Large-Scale Energy Storage, Safety of 2,5,8,11,14-Pentaoxapentadecane, the main research area is large scale energy storage self stratified battery fabrication.

Large-scale energy storage batteries are crucial in effectively utilizing intermittent renewable energy (such as wind and solar energy). To reduce battery fabrication costs, we propose a minimal-design stirred battery with a gravity-driven self-stratified architecture that contains a zinc anode at the bottom, an aqueous electrolyte in the middle, and an organic catholyte on the top. Due to the solubility difference, the pos. redox species are strictly confined to the upper organic catholyte. Thus, self-discharge is eliminated, even when the battery is stirred to realize high-rate charge-discharge. Moreover, the battery intrinsically avoids electrode deterioration and failure related to membrane crossover suffered by other types of cells. Therefore, it exhibits excellent cycling stability, which is promising for long-term energy storage.

Joule 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

Zhang, Yi-Nan published the artcileSacrificial Co-solvent Electrolyte to Construct a Stable Solid Electrolyte Interphase in Lithium-Oxygen Batteries, HPLC of Formula: 143-24-8, the main research area is cosolvent electrolyte solid interphase lithium oxygen battery; Li-O2 battery; MeIM; co-solvent; sacrificial electrolyte; solid electrolyte interphase.

Lithium-oxygen batteries are vital devices for electrochem. energy storage. The electrolyte is a crucial factor for improving battery performance. The high reactivity of lithium metal induces side reactions with organic electrolytes, thus leading to an unstable interface between the anode and electrolyte and poor performance of batteries. In this work, to compensate for the above shortcomings, 1-methylimidazole (MeIm) is introduced to the tetraethylene glycol di-Me ether (TEGDME) electrolyte to form the TEGDME/MeIm co-solvent electrolyte. Because of the high donor number value of MeIm, the solution-based pathway of discharge products can be triggered. Compared with the single TEGDME electrolyte, the discharge capacity with the TEGDME/MeIm co-solvent electrolyte is increased by more than 2 times. Moreover, the TEGDME/MeIm co-solvent electrolyte can promote the dissociation of Li salt due to the high dielec. constant of MeIm and thus make up for the shortcomings of TEGDME. In addition, due to the lower energy than the LUMO (LUMO) level of TEGDME, MeIm is decomposed preferentially, and a dense solid electrolyte interphase (SEI) layer is constructed. Then, the decomposition of TEGDME is suppressed. Therefore, the cycle performance of the battery with the TEGDME/MeIm co-solvent electrolyte is 18 times compared to that with the single TEGDME electrolyte.

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, HPLC of Formula: 143-24-8.

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

Nishioka, Kiho published the artcileN,N-Dimethylethanesulfonamide as an Electrolyte Solvent Stable for the Positive Electrode Reaction of Aprotic Li-O2 Batteries, Computed Properties of 143-24-8, the main research area is dimethylethanesulfonamide electrolyte solvent pos electrode lithium oxygen battery.

The realization of secondary lithium-oxygen batteries (Li-O2 batteries, LOBs) with large gravimetric energy d. requires the development of an innovative electrolyte with high chem. stability that allows the charge-discharge reaction to proceed with low overvoltage. In this study, we evaluated the potential of an electrolyte solvent, N,N-dimethylethanesulfonamide (DMESA) with a sulfonamide functional group, at a c.d. of 0.4 mA cm-2 and a capacity of 4 mA h cm-2. The voltage at which CO2 was generated during charging was substantially higher than that of a tetraglyme (G4)-based electrolyte with redox mediators, which is one of the standard electrolytes used for LOBs. Experiments using a 13C-containing pos. electrode revealed that CO2 generated during charging mainly originated from the decomposition of the pos. electrode. The analyses of the charging profile in conjunction with differential electrochem. mass spectrometry suggested the formation of highly degradable lithium peroxide (Li2O2) in the DMESA-based electrolyte. The formation of highly degradable Li2O2 enables a reduction of the charging voltage, leading to further suppression of the electrolyte decomposition

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, Computed Properties of 143-24-8.

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

Zhu, Mingjun published the artcileDirect Observation of Solvent Donor Number Effect on Lithium-Oxygen Battery Capacity via a Nanoarray Cathode Model, SDS of cas: 143-24-8, the main research area is binary solvent effect lithium oxygen battery nanoarray cathode capacity.

The solvent properties are critical factors that strongly influence the capacities and cycle lives of lithium-oxygen (Li-O2) batteries. In previous studies of solvent effects, disk electrodes are prototypes far from practical application while practical composite electrodes are interfered by additives. Herein, we propose MnO2 nanoarrays as a cathode model to directly observe the effect of the tunable donicity of DMSO (DMSO)-tetra (ethylene glycol) di-Me ether (G4) binary solvent. The facilely prepared MnO2 nanoarrays on carbon clothes not only mimic carbon-supported catalysts but also provide an open architecture that helps distinguish discharge products from complex electrodes without further characterizations. Using nanoarray models, this work directly observes the morphologies of discharge products that gradually evolve from conformal films to toroid-like particles with the increase in the DMSO ratio in the binary solvents. Thus, the Li-O2 battery capacities are proportional to the donicities of the binary solvents. However, the reactive solvent that provides high donicity greatly deteriorates the cycle performance. A compromise should be achieved between capacity and stability when tuning the donicity of the binary solvent. The novel nanoarray model and fundamental findings in this work will further help the electrolyte optimization for Li-O2 batteries.

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, SDS of cas: 143-24-8.

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