Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Reexamination Certificate
2005-05-26
2010-06-01
Weiner, Laura S (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
C429S324000, C429S326000, C429S328000, C429S339000, C029S623100
Reexamination Certificate
active
07727669
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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