Ethylene Glycol Bis(propionitrile) Ether
- CAS NO.:3386-87-6
- Empirical Formula: C8H12N2O2
- Molecular Weight: 168.19
- MDL number: MFCD00019871
- EINECS: 222-208-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-19 15:17:17
What is Ethylene Glycol Bis(propionitrile) Ether?
What are the applications of Application
Ethylene glycol bis (propionitrile) ether (EGBE) is used as an electrolyte additive to improve the cycling stability and rate capability of Li/Li1.2Mn0.54Ni0.13Co0.13O2 cells at high operating voltage (4.8 V). After 150 cycles, cells with 1.0 wt% of EGBE-containing electrolytes have remarkable cycling performance and 89.0% capacity retention, while the cells with baseline electrolytes only remain at 67.4% capacity retention. EGBE preferably oxidizes on the cathode surface compared to the LiPF6/carbonate electrolyte. The improved cycling performance can be attributed to more stable and robust surface layer yield via the incorporation of EGBE, which mitigates the oxidation of electrolytes on the cathode electrode and inhibits the dissolution of bulk transition metal ions upon cycling at high voltage[1].
Synthesis
The preparation method of ethylene glycol bis (propionitrile) ether is as follows: with ethylene glycol and acrylonitrile as reaction raw materials, reaction under the catalysis of reaction temperature 30 ℃~70 and aqueous catalyst solution generates ethylene glycol bis (propionitrile) ether. The described aqueous catalyst solution is the compound base catalyst aqueous solution, and this compound base catalyst aqueous solution is mixed with a triethyl benzyl ammonium hydroxide aqueous solution and sodium hydrate aqueous solution.
References
[1] Pengbo Hong . “Effect of ethylene glycol bis (propionitrile) ether (EGBE) on the performance and interfacial chemistry of lithium-rich layered oxide cathode.” Journal of Power Sources 329 (2016): Pages 216-224.
Properties of Ethylene Glycol Bis(propionitrile) Ether
Boiling point: | 165 °C / 5mmHg |
Density | 1,07 g/cm3 |
refractive index | 1.4470 to 1.4510 |
EPA Substance Registry System | Propanenitrile, 3,3'-[1,2-ethanediylbis(oxy)]bis- (3386-87-6) |
Safety information for Ethylene Glycol Bis(propionitrile) Ether
Signal word | Danger |
Pictogram(s) |
Skull and Crossbones Acute Toxicity GHS06 |
GHS Hazard Statements |
H301:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. P405:Store locked up. |
Computed Descriptors for Ethylene Glycol Bis(propionitrile) Ether
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