Anodic polymerization of vinyl ethylene carbonate in Li-Ion battery electrolyte

Journal Article · Sun Feb 27 23:00:00 EST 2005 · Electrochemical and Solid-State Letters

DOI:https://doi.org/10.1149/1.1921127· OSTI ID:861305

Chen, Guoying; Zhuang, Guorong V; Richardson, Thomas J; Gao, Liu; Ross, Jr, Philip N

A study of the anodic oxidation of vinyl ethylene carbonate (VEC) was conducted with post-mortem analysis of reaction products by ATR-FTIR and gel permeation chromatography (GPC). The half-wave potential (E1/2) for oxidation of VEC is ca. 3.6 V producing a resistive film on the electrode surface. GPC analysis of the film on a gold electrode produced by anodization of a commercial Li-ion battery electrolyte containing 2 percent VEC at 4.1 V showed the presence of a high molecular weight polymer. IR analysis indicated polycarbonate with alkyl carbonate rings linked by aliphatic methylene and methyl branches.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE. Assistant Secretary for Energy Efficiency and Renewable Energy. Office of the Deputy Assistant Secretary for Technology Development. Office of the FreedomCAR and Vehicle Technology Program
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 861305
• Report Number(s): LBNL--56741; BnR: VT0301030
• Journal Information: Electrochemical and Solid-State Letters, Journal Name: Electrochemical and Solid-State Letters Journal Issue: 7 Vol. 8
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ANODIZATION
CARBONATES
ELECTRODES
ELECTROLYTES
ETHYLENE
GEL PERMEATION CHROMATOGRAPHY
GOLD
MOLECULAR WEIGHT
OXIDATION
POLYCARBONATES
POLYMERIZATION
vinyl ethylene carbonate electrolyte additive surface film