Category: 872-36-6

Collins, Gearoid A.; McNamara, Karrina; Kilian, Seamus; Geaney, Hugh; Ryan, Kevin M. published an article in 2021. The article was titled 《Alloying Germanium Nanowire Anodes Dramatically Outperform Graphite Anodes in Full-Cell Chemistries over a Wide Temperature Range》, and you may find the article in ACS Applied Energy Materials.COA of Formula: C3H2O3 The information in the text is summarized as follows:

The electrochem. performance of Ge, an alloying anode in the form of directly grown nanowires (NWs), in Li-ion full cells (vs LiCoO2) was analyzed over a wide temperature range (-40 to 40°C). LiCoO2||Ge cells in a standard electrolyte exhibited specific capacities 30x and 50x those of LiCoO2||C cells at -20 and -40°C, resp. We further show that propylene carbonate addition further improved the low-temperature performance of LiCoO2||Ge cells, achieving a specific capacity of 1091 mA h g-1 after 400 cycles when charged/discharged at -20°C. At 40°C, an additive mixture of Et Me carbonate and lithium bis(oxalato)borate stabilized the capacity fade from 0.22 to 0.07% cycle-1. Similar electrolyte additives in LiCoO2||C cells did not allow for any gains in performance. Interestingly, the capacity retention of LiCoO2||Ge improved at low temperatures due to delayed amorphization of crystalline NWs, suppressing complete lithiation and high-order Li15Ge4 phase formation. The results show that alloying anodes in suitably configured electrolytes can deliver high performance at the extremes of temperature ranges where elec. vehicles operate, conditions that are currently not viable for com. batteries without energy-inefficient temperature regulation. In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6COA of Formula: C3H2O3) was used in this study.

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.COA of Formula: C3H2O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

《Roles of Nonflammable Organic Liquid Electrolyte in Stabilizing the Interface of the LiNi0.8Co0.1Mn0.1O2 Cathode at 4.5 V and Improving the Battery Performance》 was written by Pham, Hieu Quang; Thi Tran, Yen Hai; Han, Jisoo; Song, Seung-Wan. Recommanded Product: Vinylene carbonate And the article was included in Journal of Physical Chemistry C in 2020. The article conveys some information:

Driven by a high demand for safe lithium-ion batteries (LIBs) with no risk of fire, we develop a nonflammable organic liquid electrolyte, which is composed of 1 M lithium hexafluorophosphate salt and propylene carbonate and fluorinated linear carbonates. Herein, we report the studies of the effects of the nonflammable electrolyte on the surface chem. and structure of the nickel-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode under the expanded electrochem. voltage window to 4.5 V and their correlation to cycling performance. We provide for the first time the visual evidence for the roles and effectiveness of our nonflammable organic liquid electrolyte in stabilizing both surface and bulk structures, in promoting the formation of a stable surface protective film at the NCM811 cathode and reducing crack formation, metal-dissolution, and structural degradation despite under 4.5 V high-voltage condition and thus resulting in the increased capacity up to 230 mA h g-1 at 0.2 C and unprecedented cycling performance of the NCM811 cathode under high-voltage in not only Li‖NCM811 half-cell for lithium metal batteries but also graphite‖NCM811 full-cell with vinylene carbonate additive for LIBs. The data give an insight into the design principle of nonflammable and high energy-d. lithium rechargeable batteries employing a nonflammable electrolyte and stable cathode-electrolyte interface. In the part of experimental materials, we found many familiar compounds, such as Vinylene carbonate(cas: 872-36-6Recommanded Product: Vinylene carbonate)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Recommanded Product: Vinylene carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yao, Nan; Chen, Xiang; Shen, Xin; Zhang, Rui; Fu, Zhong-Heng; Ma, Xia-Xia; Zhang, Xue-Qiang; Li, Bo-Quan; Zhang, Qiang published their research in Angewandte Chemie, International Edition in 2021. The article was titled 《An Atomic Insight into the Chemical Origin and Variation of the Dielectric Constant in Liquid Electrolytes》.Recommanded Product: 872-36-6 The article contains the following contents:

The dielec. constant is a crucial physicochem. property of liquids in tuning solute-solvent interactions and solvation microstructures. Herein the dielec. constant variation of liquid electrolytes regarding to temperatures and electrolyte compositions is probed by mol. dynamics simulations. Dielec. constants of solvents reduce as temperatures increase due to accelerated mobility of mols. For solvent mixtures with different mixing ratios, their dielec. constants either follow a linear superposition rule or satisfy a polynomial function, depending on weak or strong intermol. interactions. Dielec. constants of electrolytes exhibit a volcano trend with increasing salt concentrations, which can be attributed to dielec. contributions from salts and formation of solvation structures. This work affords an at. insight into the dielec. constant variation and its chem. origin, which can deepen the fundamental understanding of solution chem. The experimental part of the paper was very detailed, including the reaction process of Vinylene carbonate(cas: 872-36-6Recommanded Product: 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Recommanded Product: 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ghosh, Sankha published an article in 2021. The article was titled 《First-principles study on h-BSi3 sheet as a promising high-performance anode for sodium-ion batteries》, and you may find the article in Physical Chemistry Chemical Physics.Application In Synthesis of Vinylene carbonate The information in the text is summarized as follows:

Seeking cheap, efficient and sustainable alternatives to lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) has emerged as a realm of research, due to the abundance of Na in the earth′s crust. We have investigated the relative performance of novel intrinsically metallic h-BSi3 (BS) sheet as an anode for SIBs, compared to LIBs, through D. Functional Theory studies. Our calculations show that BS has higher chemisorption interactions with Na than Li atoms while drawing substantial electron densities from both, turning them into cations. BS is able to reach a high specific capacity of 1127.62 mA h g-1 for Na, while only as half of that for Li, at ambient temperatures ranging 300-600 K. The moderate sodiation (0.77 V) and lithiation (0.79 V) voltages facilitate BS to prevent the SEI layer formation, metal plating and harmful dendrite growth and to maintain good energy d. BS retains good electronic and ionic conductivities after hosting both Na and Li adatoms, while the former diffuses with about as half the barriers as those of the latter, supporting faster charge/discharge rate and greater preservation of storage capacities in high current densities when BS is used as an anode in SIBs. Na adsorptions cause relatively lower structural deformations to BS, and refrain from forming clusters, leading to good cyclic stability. The superior electrochem. performance of Na, thus, makes BS a potential anode material for SIBs. The experimental process involved the reaction of Vinylene carbonate(cas: 872-36-6Application In Synthesis of Vinylene carbonate)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Application In Synthesis of Vinylene carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Guangxu; Wei, Xuezhe; Chen, Siqi; Zhu, Jiangong; Han, Guangshuai; Tang, Xuan; Hua, Weibo; Dai, Haifeng; Ye, Jiping published an article in 2021. The article was titled 《Comprehensive Investigation of a Slight Overcharge on Degradation and Thermal Runaway Behavior of Lithium-Ion Batteries》, and you may find the article in ACS Applied Materials & Interfaces.Application of 872-36-6 The information in the text is summarized as follows:

Overcharge is a hazardous abuse condition that has dominant influences on cell performance and safety. This work, for the first time, comprehensively investigates the impact of different overcharge degrees on degradation and thermal runaway behavior of lithium-ion batteries. The results indicate that single overcharge has little influence on cell capacity, while it severely degrades thermal stability. Degradation mechanisms are investigated by utilizing the incremental capacity-differential voltage and relaxation voltage analyses. During the slight overcharge process, the conductivity loss and the loss of lithium inventory always occur; the loss of active material starts happening only when the cell is overcharged to a certain degree. Lithium plating is the major cause for the loss of lithium inventory, and an interesting phenomenon that the arrival time of the dV/dt peak decreases linearly with the increase of the overcharge degree is found. The cells with different degrees of overcharge exhibit a similar behavior during adiabatic thermal runaway. Meanwhile, the relationship between sudden voltage drop and thermal runaway is further established. More importantly, the characteristic temperature of thermal runaway, especially the self-heating temperature (T1), decreases severely along with overcharging, which means that a slight overcharge severely decreases the cell thermal stability. Further, post-mortem anal. is conducted to investigate the degradation mechanisms. The mechanism of the side reactions caused by a slight overcharge on the degradation performance and thermal runaway characteristics is revealed. In the part of experimental materials, we found many familiar compounds, such as Vinylene carbonate(cas: 872-36-6Application of 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Application of 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Application of 872-36-6In 2019 ,《Silicon/mesoporous carbon (Si/MC) Derived from phenolic resin for high energy anode materials for Li-ion batteries: role of HF etching and vinylene carbonate (VC) additive》 was published in Batteries (Basel, Switzerland). The article was written by Rezqita, Arlavinda; Vasilchina, Hristina; Hamid, Raad; Sauer, Markus; Foelske, Annette; Taeubert, Corina; Kronberger, Hermann. The article contains the following contents:

Silicon/mesoporous carbon (Si/MC) composites with optimum Si content, in which the volumetric energy d. would be maximized, while volume changes would be minimized, have been developed. The composites were prepared by dispersing Si nanoparticles in a phenolic resin as a carbon source, subsequent carbonization, and etching with hydrofluoric acid (HF). Special attention was paid to understanding the role of HF etching as post-treatment to provide addnl. void spaces in the composites. The etching process was shown to reduce the SiO2 native layer on the Si nanoparticles, resulting in increased porosity in comparison to the non-etched composite material. For cell optimization, vinylene carbonate (VC) was employed as an electrolyte additive to build a stable solid electrolyte interphase (SEI) layer on the electrode. The composition of the SEI layer on Si/MC electrodes, cycled with and without VC-containing electrolytes for several cycles, was then comprehensively investigated by using ex-situ XPS. The SEI layers on the electrodes working with VC-containing electrolyte were more stable than those in configurations without VC; this explains why our sample with VC exhibits lower irreversible capacity losses after several cycles. The optimized Si/MC composites exhibit a reversible capacity of ∼800 mAhg-1 with an average coulombic efficiency of ∼99% over 400 cycles at C/10. In the experiment, the researchers used Vinylene carbonate(cas: 872-36-6Application of 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Application of 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2019,Angewandte Chemie, International Edition included an article by Wang, Zhe; Xue, Fei; Hayashi, Tamio. Safety of Vinylene carbonate. The article was titled 《Synthesis of Arylacetaldehydes by Iridium-Catalyzed Arylation of Vinylene Carbonate with Arylboronic Acids》. The information in the text is summarized as follows:

Arylacetaldehydes were prepared by arylation of vinylene carbonate with arylboronic acids in the presence of [Ir(cod)(OMe)]2, 1,3-bis[di(4-methoxyphenyl)phosphino]propane, and B2(OH)4 in aqueous 1,2-dichloroethane. The experimental part of the paper was very detailed, including the reaction process of Vinylene carbonate(cas: 872-36-6Safety of Vinylene carbonate)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Safety of Vinylene carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

《Microstructural observations of “”Single Crystal”” positive electrode materials before and after long term cycling by cross-section scanning electron microscopy》 was written by Liu, Yulong; Harlow, Jessie; Dahn, Jeff. Application In Synthesis of Vinylene carbonate And the article was included in Journal of the Electrochemical Society in 2020. The article conveys some information:

Single crystal LiNi0.5Mn0.3Co0.2O2 (SC532), LiNi0.6Mn0.2Co0.2O2 (SC622) and LiNi0.8Mn0.1Co0.1O2 (SC811) electrodes were retrieved from heavily cycled com.-grade pouch cells at 4.3 V for cross-section SEM (SEM). SEM images indicated the single crystals showed very little microcracking, thought by many researchers to be one of the main reasons for cell degradation when polycrystalline materials are used. SEM images of electrodes from heavily cycled cells were compared to those from fresh cells which showed little visual difference. Parallel microcracks within very few single crystal particles were observed for both fresh and heavily cycled materials and are thought to be caused during the electrode calendaring process. It is believed by the authors that single crystal materials are highly promising pos. electrode materials for high energy d. and long cycle life lithium-ion cells. In the experiment, the researchers used Vinylene carbonate(cas: 872-36-6Application In Synthesis of Vinylene carbonate)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Application In Synthesis of Vinylene carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Qing; Han, Bing; Zou, Yucheng; Shen, Shaocheng; Li, Menghao; Lu, Xinzhen; Wang, Man; Guo, Zaiping; Yao, Jianquan; Chang, Zhi; Gu, Meng published their research in Advanced Materials (Weinheim, Germany) in 2021. The article was titled 《Enabling Atomic-Scale Imaging of Sensitive Potassium Metal and Related Solid Electrolyte Interphases Using Ultralow-Dose Cryo-TEM》.SDS of cas: 872-36-6 The article contains the following contents:

Potassium-based solid electrolyte interphases (SEIs) have a much smaller damage threshold than their lithium counterpart; thus, they are significantly more beam sensitive. Here, an ultralow-dose cryogenic transmission electron microscopy (cryo-TEM) technique (∼8 e S-2 s-1 x 10 s), which enables the at.-scale chem. imaging of the electron-beam-sensitive potassium metal and SEI in its native state, is adapted. The potassium-based SEI consists of large brackets of diverse inorganic phases (≈hundreds of nanometers) interspersed with amorphous phases, which are different from the tiny nanocrystalline inorganic phases (∼a few nanometers) formed in a lithium-based SEI. Organic phosphate-based electrolyte solvents induce the formation of a thin and stable SEI layer for enhanced cycling performance, while the carbonate ester-based electrolytes result in large quantities of metastable KHCO3, and K4CO4 products in the SEI, depleting the potassium reserves in the battery. The findings provide deep insights and guidance in the selection of optimum electrolytes that should be used for potassium batteries. In the experimental materials used by the author, we found Vinylene carbonate(cas: 872-36-6SDS of cas: 872-36-6)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.SDS of cas: 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Bin; Le Fevre, Lewis W.; Brookfield, Adam; McInnes, Eric J. L.; Dryfe, Robert A. W. published an article in 2021. The article was titled 《Resolution of Lithium Deposition versus Intercalation of Graphite Anodes in Lithium Ion Batteries: An In Situ Electron Paramagnetic Resonance Study》, and you may find the article in Angewandte Chemie, International Edition.SDS of cas: 872-36-6 The information in the text is summarized as follows:

In situ electrochem. ESR (EPR) spectroscopy is used to understand the mixed lithiation/deposition behavior on graphite anodes during the charging process. The conductivity, degree of lithiation, and the deposition process of the graphite are reflected by the EPR spectroscopic quality factor, the spin d., and the EPR spectral change, resp. Classical over-charging (normally associated with potentials ≤0 V vs. Li+/Li) are not required for Li metal deposition onto the graphite anode: Li deposition initiates at ca. +0.04 V (vs. Li+/Li) when the scan rate is lowered to 0.04 mV s-1. The inhibition of Li deposition by vinylene carbonate (VC) additive is highlighted by the EPR results during cycling, attributed to a more mech. flexible and polymeric SEI layer with higher ionic conductivity A safe cut-off potential limit of +0.05 V for the anode is suggested for high rate cycling, confirmed by the EPR response over prolonged cycling. In addition to this study using Vinylene carbonate, there are many other studies that have used Vinylene carbonate(cas: 872-36-6SDS of cas: 872-36-6) was used in this study.

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.SDS of cas: 872-36-6

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics