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Merck
CN

935646

Ethylene sulfate

greener alternative

≥99%, anhydrous, battery grade

Synonym(s):

1,3,2-Dioxathiolane 2,2-dioxide, DTD

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About This Item

Empirical Formula (Hill Notation):
C2H4O4S
CAS Number:
1072-53-3
Molecular Weight:
124.12
UNSPSC Code:
12352005
MDL number:
MFCD00221769
NACRES:
MA.24

Key Documents

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Product Name

Ethylene sulfate, ≥99%, anhydrous, battery grade

InChI key

ZPFAVCIQZKRBGF-UHFFFAOYSA-N

InChI

1S/C2H4O4S/c3-7(4)5-1-2-6-7/h1-2H2

SMILES string

O=S1(=O)OCCO1

grade

anhydrous
battery grade

assay

≥99%

form

powder

greener alternative product characteristics

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sustainability

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impurities

≤750 ppm (H2O)

bp

231 °C

mp

95-97 °C (lit.)

application(s)

battery manufacturing

greener alternative category

Enabling

storage temp.

2-8°C

Quality Level

100

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Application

Ethylene sulfate has a range of industrial applications. Our anhydrous battery grade ethylene sulfate is primarily used as an electrolyte additive to extend the lifetime of lithium-ion batteries and sodium-ion batteries.[,] Ethylene sulfate helps to improve the formation of a stable solid-electrolyte interphase (SEI) on the surface of the anode material, which can prevent reaction between the anode and the electrolyte, leading to better battery lifespan and more stable impedance across the interphase.[] DTD is often used in conjunction with other additives. One of the best-performing electrolyte formulations for graphite cells is a 1.0 M LiPF6 in a carbonate blend with 1% DTD and 2%VC.[,]

General description

Ethylene sulfate (DTD) is a polar cyclic sulfate ester. It is a white powder that is soluble in many of the polar organic solvents used in battery applications, including carbonates. Our battery grade ethylene sulfate is differentiated by its high purity, low trace water content, and low trace acid content, which avoid unwanted chemical reactions with the anode and increase capacity, safety, and life span in batteries

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW1103

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Ethylene sulfate as film formation additive to improve the compatibility of graphite electrode for lithium-ion battery
Xuecheng L, et al.
Ionics, 20, 795-801 (2014)
Ethylene sulfate as film formation additive to improve the compatibility of graphite electrode for lithium-ion battery
Xuecheng L, et al.
Ionics, 20, 795-801 (2014)
Effect of Sulfate Electrolyte Additives on LiNi1/3Mn1/3Co1/3O2/Graphite Pouch Cell Lifetime: Correlation between XPS Surface Studies and Electrochemical Test Results
Madec L, et al.
The Journal of Physical Chemistry C, 118, 29608-29622 (2014)
Comparative study of 1,3-propane sultone, prop-1-ene-1,3-sultone and ethylene sulfate as film-forming additives for sodium ion batteries
Zhang Q, et al.
Journal of Power Sources, 541, 231726-231726 (2022)
A Wide Range of Testing Results on an Excellent Lithium-Ion Cell Chemistry to be used as Benchmarks for New Battery Technologies
Jessie E, et al.
Journal of the Electrochemical Society, 166, A3031-A3031 (2019)
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Articles

Role of Advanced Electrolytes in Sodium Ion Batteries

Discover the role of electrolytes in sodium-ion batteries, to enhance performance, safety, and sustainability in energy storage solutions.

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