Tris(trimethylsilyl) borate

Bezeichnung:Tris(trimethylsilyl) borate

CAS-Nr4325-85-3

Englisch Name:Tris(trimethylsilyl) borate

CBNumberCB3733453

SummenformelC9H27BO3Si3

Molgewicht278.38

MOL-Datei4325-85-3.mol

Tris(trimethylsilyl) borate physikalisch-chemischer Eigenschaften

Schmelzpunkt	-35°C
Siedepunkt	186 °C (lit.)
Dichte	0.831 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.386(lit.)
Flammpunkt	109 °F
storage temp.	Inert atmosphere,2-8°C
Aggregatzustand	Liquid
Wichte	0.828
Farbe	Clear colorless
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
Sensitive	Moisture Sensitive
BRN	1772733
InChI	InChI=1S/C9H27BO3Si3/c1-14(2,3)11-10(12-15(4,5)6)13-16(7,8)9/h1-9H3
InChIKey	YZYKZHPNRDIPFA-UHFFFAOYSA-N
SMILES	[Si](C)(C)(C)OB(O[Si](C)(C)C)O[Si](C)(C)C
CAS Datenbank	4325-85-3
EPA chemische Informationen	Silanol, trimethyl-, triester with boric acid (H3BO3) (4325-85-3)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	10-36/37/38
S-Sätze:	26-36
RIDADR	UN 1993 3/PG 3
WGK Germany	3
F	10-21
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29319090

Gefahreninformationscode (GHS)

Tris(trimethylsilyl) borate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
Clear colorless liquid
Verwenden
Tris(trimethylsilyl) borate is used as intermediate of organic synthesis and additive of lithium battery electrolyte.
Properties and Applications
Tris (trimethylsilyl) borate (TMSB) has been investigated as a protective cathode additive for increasing the cycle performance of several high-voltage cathode materials, including LiMn2O4 (4.5 V), LiNi_0.5Co_0.2Mn_0.3O₂ (4.4 V), LiNi_0.5Mn_1.5O₄ (4.9 V) and layered lithium-rich oxide cathode Li[Li_0.2Mn_0.54Ni_0.13Co_0.13]O₂ (4.8 V). TMSB can also be applied as an effective electrolyte additive to raise the cycle life of LiMn2O4 and LiFePO4 cathode Li-ion batteries at 55 °C. Compared with tris(trimethylsilyl)phosphate (TMSP), the CEI film generated from TMSB, which contains B and Si-rich compounds, shows a better ability to restrain the growth of interfacial resistance during cycling. The results reveal that the TMSB additive is easy to complex with Li⁺ ions, thus weakening the intermolecular force between Li+ ions and ethylene carbonate solvent, which is beneficial for the cycle performance. Besides, the changed Li+ solvation structure results in a thin and dense CEI film containing compounds with Si–O and B–O bonds, which favors the transfer of Li+ ions[1–2].
Einzelnachweise
[1] Yan Chunfeng . “Tris(trimethylsilyl) borate as an electrolyte additive for high-voltage lithium-ion batteries using LiNi1/3Mn1/3Co1/3O2 cathode.” Journal of Energy Chemistry 25 4 (2016): Pages 659-666.
[2] Jie Wang . “Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells.”Journal of Energy Chemistry 67 (2022): Pages 55-64.

Tris(trimethylsilyl) borate Upstream-Materialien And Downstream Produkte

Tris(trimethylsilyl) borate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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