4-Vinyl-1,3-dioxolan-2-one
4-vinyl-1,3-dioxolan-2-one
CAS: 4427-96-7
Molecular Formula: C5H6O3
4-Vinyl-1,3-dioxolan-2-one - Names and Identifiers
4-Vinyl-1,3-dioxolan-2-one - Physico-chemical Properties
| Molecular Formula | C5H6O3 |
| Molar Mass | 114.1 |
| Density | 1.188 g/mL at 25 °C (lit.) |
| Boling Point | 237 °C/733 mmHg (lit.) |
| Flash Point | 206°F |
| Water Solubility | Insoluble in water. |
| Vapor Presure | 4.58Pa at 25℃ |
| Appearance | Liquid |
| Color | Colorless to Almost colorless |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.45(lit.) |
| MDL | MFCD00143315 |
4-Vinyl-1,3-dioxolan-2-one - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | 25 - Toxic if swallowed |
| Safety Description | 45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2810 6.1/PG 3 |
| WGK Germany | 1 |
| TSCA | Yes |
| HS Code | 29209090 |
| Hazard Class | 6.1 |
| Packing Group | III |
4-Vinyl-1,3-dioxolan-2-one - Effect of Ethylene Carbonate on Performance of Lithium Ion Batteries
from Baidu library
Author:
yang guang ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(ea4a7b66b06d3b05) author:(fu chenglin)" target = "_blank"> fu chenglin ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(1116 fda8b0bb4bb3) author:(Liao hongying)" target = "_blank"> Liao hongying/a >,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(bacc3638bcb56904) author:(Meng Rong)" target = "_blank"> Meng Rong
Summary:
the effects of electrolyte film-forming additive ethylene carbonate (VEC) on the performance of lithium ion batteries were investigated by quantum chemical calculations, cyclic voltammetry, electrochemical impedance and charge-discharge tests. The results of quantum chemistry calculation show that VEC has a lower energy value of molecular lowest empty orbit (LUMO). Cyclic voltammetry and AC impedance tests show that the reduction potential of ethylene carbonate is 1.2V( vs.Li/Li ), which is preferred to the electrochemical reaction of electrolyte on the negative electrode surface to form an electrolyte phase interface (SEI) film. The film is stable, can improve the cycle performance of the battery, and inhibit the gas expansion of the battery. The large impedance of the SEI membrane is not conducive to the intercalation and removal of lithium reaction of the electrode, resulting in low first charge and discharge capacity and efficiency.
keywords:
lithium ion battery; Electrolyte; Film forming additive; Ethylene carbonate (VEC)
DOI:
10.3969/j.issn.1001-1579.2012.05.007
cited:
Year:
2012
Last Update：2023-08-16 23:40:12
4-Vinyl-1,3-dioxolan-2-one - Method for manufacturing ethylene carbonate [patent]
from Baidu library
application (patent) number:
CN 200910008349
date of application:
Feb 26, 2009
public/announcement number:
CN 101654448 A
Applicant (patentee):
Houcheng Co., Ltd.
Inventor:
Lu Renzhu ,< a href = "https://xueshu.baidu.com/s?wd=author: (Yu Jingyuan) & tn = SE_baiduxueshu_c1gjeupa & ie = utf-8 & SC _f_para = SC _hilight = person" target = "_blank"> Yu Jingyuan ,< a href = "https://xueshu.baidu.com/s?wd=author: (Yin Chengyu) & tn = SE_baiduxueshu_c1gjeupa & ie = utf-8 & SC _f_para = SC _hilight = person" target = "_blank"> Yin Chengyu ,< a href = "https://xueshu.baidu.com/s?wd=author: (Li Junhao) & tn = SE_baiduxueshu_c1gjeupa & ie = utf-8 & SC _f_para = SC _hilight = person" target = "_blank"> Li Junhao ,< a href = "https://xueshu.baidu.com/s?wd=author: (Park Chunhong) & tn = SE_baiduxueshu_c1gjeupa & ie = utf-8 & SC _f_para = SC _hilight = person" target = "_blank"> park chunhong , Zhang luozhun
national and provincial code:
Korea
cited:
Summary:
The present invention provides a method for producing a VEC in which a high purity VEC can be obtained by a simple separation and purification process, and the reaction conversion rate of the VEC can be excellent even if a simple reaction process is carried out at a low reaction temperature. The invention provides a manufacturing method for ethylene carbonate. The above method includes: using a basic catalyst to react 3, 4-dihydroxy-1-butene and dialkyl carbonate to synthesize and refine ethylene carbonate.
Sovereignty Item:
1. A method for producing ethylene ethylene carbonate, comprising a step of synthesizing ethylene ethylene carbonate by reacting 3, 4-dihydroxy-1-butene and dialkyl carbonate using a basic catalyst.
Last Update：2023-08-16 23:40:12
4-Vinyl-1,3-dioxolan-2-one - Performance of Ethylene Carbonate and Methane Disulfonate Functional Additives in Lithium Ion Batteries
From Wanfang
Author:
Summary:
Lithium-ion batteries are widely used in electronic products such as mobile electronic devices due to their high energy density, environmental friendliness and high capacity. With the development of lithium-ion batteries in the field of electric vehicles and energy storage, the requirements for energy density, high temperature performance and safety performance of lithium-ion batteries are getting higher and higher. In order to improve the performance of lithium-ion batteries, current research focuses on the selection of new cathode materials for batteries and progress has been made. However, the decomposition of electrolyte under high temperature or high voltage conditions leads to a reduction in battery cycle life, which has become a key factor limiting the improvement of battery performance ..
keywords:
lithium ion battery electrolyte functional additive thermal stability Ethylene carbonate Methane disulfonate
Degree level:
master's degree
Degree year:
2014
Last Update：2023-08-16 23:40:12
4-Vinyl-1,3-dioxolan-2-one - Uses and synthesis methods
Used as a highly reactive film-forming additive in lithium secondary batteries; used to synthesize functionalized polymers
Last Update：2024-04-10 22:29:15
4-Vinyl-1,3-dioxolan-2-one - Reference Information
| LogP | -0.24 at 25℃ and pH6.5 |
| surface tension | 70.403mN/m at 1g/L and 20 ℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | As a highly reactive film-forming additive in lithium secondary batteries Used as a highly reactive film-forming additive in lithium secondary batteries; used to synthesize functionalized polymers |
Last Update：2024-04-10 22:29:15
4-Vinyl-1,3-dioxolan-2-one - Nature
| boiling point | 237 °C/733 mmHg (lit.) |
| density | 1.188 g/mL at 25°C (lit.) |
| refractive index | n20/D 1.45(lit.) |
| flash point | 206 °F |
| storage conditions | 2-8°C |
| water solubility | Insoluble in water. |
| EPA chemical information | 1,3-Dioxolan-2-one, 4-ethenyl- (4427-96-7) |
Last Update：2024-04-10 22:29:15
4-Vinyl-1,3-dioxolan-2-one - Security information
| dangerous goods mark | T |
| hazard category code | 25 |
| safety instructions | 45 |
| dangerous goods transport number | UN 2810 6.1/PG 3 |
| WGK Germany | 1 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| customs code | 29209090 |
Last Update：2024-04-10 22:29:15
4-Vinyl-1,3-dioxolan-2-one - Preparation and Properties of Polymer Electrolytes for Lithium Ion Batteries
Author:
Summary:
Solid-state lithium-ion secondary batteries have the advantages of high energy density, good circularity, high working voltage, high output power, environmental friendliness, and no memory effect. They have now entered the lives of the majority of people. As a key material in solid-state lithium ion secondary batteries, polymer electrolytes are being paid more and more attention by scientists. However, according to the current research results, the conductivity of polymer electrolytes is generally low. In view of this shortcoming of polymer electrolytes, this paper mainly involves the preparation of three new polymer electrolytes and the characterization and analysis of their properties. Firstly, poly (p-styrene sulfonate)-polyethylene glycol methacrylate (PAS) polymer was successfully prepared in this paper. The polymer was characterized and analyzed by nuclear magnetic resonance hydrogen spectroscopy, infrared spectroscopy, AC impedance spectroscopy and other testing methods, and its thermal stability and conductivity were analyzed. At the same time, the effect of Na /EO ratio on the conductivity and mechanical properties of polymer PAS was studied. Then a series of polyp-styrene sulfonate-polyethylene glycol methacrylate-ethylene carbonate (PASE) containing EC groups were prepared based on the optimal Na /EO ratio. The thermal stability, mechanical properties and electrical conductivity of PASE were analyzed by nuclear magnetic resonance hydrogen spectroscopy, infrared spectroscopy, AC impedance spectroscopy, tensile test thermogravimetric analysis and other test methods, and the effect of EC group content on the electrical conductivity, thermal stability and mechanical properties of polymer PASE. Based on the optimal Na /EO ratio, a series of polyp-styrene sulfonate-polyethylene glycol methacrylate-hexafluorobutyl methacrylate (PASF) with different F groups were prepared, and its thermal stability, mechanical properties and electrical conductivity were analyzed by nuclear magnetic resonance hydrogen spectroscopy, infrared spectroscopy, AC impedance spectroscopy, tensile test thermogravimetric analysis and other test methods, the effects of the content of F-containing groups on the conductivity, thermal stability and mechanical properties of polymer PASF were also studied. Finally, the polymer PASE and polymer PASF were successfully converted from sodium salt polymer to lithium salt polymer by dialysis. The glass transition temperature of the polymer was tested by differential scanning calorimetry. The results showed that the glass transition temperature of the polymer system increased with the increase of the flexible structure in the polymer structure. Through the test of thermal weightlessness on the thermal stability of the polymer, it is concluded that the prepared polymer electrolytes have good thermal stability and can meet the needs of practical use. Through AC impedance spectroscopy to test the conductivity of polymer electrolytes, when the Na /EO ratio is 1:9, it has the highest conductivity, which is 2.67 × 10-7S/cm. For polymer PASE, its ionic conductivity increases with the increase of ethylene ethylene carbonate content in the reactant, and the conductivity increases to a certain extent for the first polymer PAS, reaching the order of 10-6. For polymer PASF, its ionic conductivity increases with the increase of hexafluorobutyl methacrylate content in the re, similarly, the resulting conductivity has a certain improvement for polymer PAS, reaching the order of 10-5. The tensile strength of the polymer is measured by tensile test. The results show that various kinds of polymer electrolyte membranes have certain mechanical properties and can meet the assembly needs of solid polymer batteries.
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keywords:
Degree level:
master's degree
DOI:
CNKI:CDMD:2.1016.914561
Last Update：2024-04-10 22:43:14
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