Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2011-01-11
2011-01-11
Weiner, Laura S (Department: 1795)
Metal working
Method of mechanical manufacture
Electrical device making
C029S623100, C029S623300, C029S623500, C429S200000, C429S324000, C429S326000, C429S328000, C429S339000, C429S337000, C429S338000, C429S341000, C429S342000, C429S343000, C429S330000, C429S231100, C429S231200, C429S231300, C429S231500, C429S231800, C429S231950, C429S218100, C429S225000, C429S231400
Reexamination Certificate
active
07867294
ABSTRACT:
A process is provided to produce non-aqueous electrolytic solution for use in batteries having low acid content and low water content. The invention involves removing acids and water from non-aqueous electrolytic solutions typically found in lithium or lithium-ion batteries by using nitrogen-containing compounds such as triazines. After treatment by a triazine such as melamine, the concentrations of acids and water in the electrolytic solutions are substantially decreased. The present invention provides a process to prepare extremely pure electrolytic solutions having low (<20 ppm) concentrations of both water and acids.
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Bolomey Pascal
Decker Jerry L.
Deng Zhongyi
Sans John R.
Xu Wu
Novolyte Technologies Inc.
Rankin , Hill & Clark LLP
Weiner Laura S
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