| Identification | Back Directory | [Name]
METHOXYTRIETHYLENEOXYPROPYLTRIMETHOXYSILANE | [CAS]
132388-45-5 | [Synonyms]
METHOXYTRIETHYLENEOXYPROPYLTRIMETHOXYSILANE
3,3-diMethoxy-2,7,10,13,16-pentaoxa-3-silaheptadecane
2,7,10,13,16-Pentaoxa-3-silaheptadecane, 3,3-dimethoxy-
imethoxy-(methoxymethoxy)-(3,3,3-triethoxypropyl)silane
dimethoxy-(methoxymethoxy)-(3,3,3-triethoxypropyl)silane | [Molecular Formula]
C13H30O7Si | [MDL Number]
MFCD09953872 | [MOL File]
132388-45-5.mol | [Molecular Weight]
326.46 |
| Chemical Properties | Back Directory | [Boiling point ]
140°C/0.2mmHg | [density ]
1.163 | [refractive index ]
1.4321 | [Specific Gravity]
1.163 | [Hydrolytic Sensitivity]
7: reacts slowly with moisture/water | [InChI]
InChI=1S/C13H30O7Si/c1-14-7-8-19-11-12-20-10-9-18-6-5-13-21(15-2,16-3)17-4/h5-13H2,1-4H3 | [InChIKey]
KRIUTXYABPSKPN-UHFFFAOYSA-N | [SMILES]
CO[Si](OC)(OC)CCCOCCOCCOCCOC |
| Hazard Information | Back Directory | [Uses]
Methoxytriethyleneoxypropyltrimethoxysilane (MTE-TMS), a novel multifunctional additive possessing a unique functionality to simultaneously protect both Ni-rich NCM and graphite electrode surfaces. MTE-TMS improves the long-term cycling stability not only of individual half-cells of graphite and Ni-rich NCM but also of the full graphite‖Ni-rich NCM cell.
| [Properties and Applications]
Ex-situ analysis showed that Methoxytriethyleneoxypropyltrimethoxysilane (MTE-TMS) forms a stable and thin surface protective film on the NCM851005, containing Si species, which effectively reduced crack formation, metal dissolution, and structural degradation of the cathode. MTE-TMS also forms a stable SEI layer on the graphite anode, stabilizing the graphite structure and preventing the thickening of the SEI. MTE-TMS’ effectivity, on both anode and cathode, results in superior cycling performance of the full-cells, with 1 wt% MTE-TMS in the electrolyte, delivering a high capacity of 198 mAh g?1, along with an excellent capacity retention of 84% after 100 cycles at C/5, while cycled to upper cut-off voltage of 4.25 V (4.3 vs Li+/Li). MTE-TMS has the potential to help the realization of high energy density Li-ion batteries by enabling a wider working voltage range for Ni-rich oxide cathodes[1].
| [References]
[1] Hieu Quang Pham . “Multifunctional electrolyte additive for improved interfacial stability in Ni-rich layered oxide full-cells.” Energy Storage Materials 33 (2020): Pages 216-229.
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