Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07F
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
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9/00
Compounds containing elements of Groups 5 or 15 of the Periodic Table
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C07F9/48
Phosphonous acids [RP(OH)2]; including [RHP(=O)(OH)]; Thiophosphonous acids; including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
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C07F9/4808
the acid moiety containing a substituent or structure which is considered as characteristic
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C07F9/4825
Acyclic unsaturated acids or derivatives
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C07F9/4825

Non-Aqueous Electrolyte and Lithium Secondary Battery Including the Same
20210313621 · 2021-10-07 ·

A non-aqueous electrolyte solution according to an embodiment of the present invention includes a non-aqueous organic solvent, a lithium salt and a phosphonate-based additive having a predetermined chemical structure. Surface damage and side reactions of the cathode active material can be suppressed by the phosphonate-based additive. According to an embodiment of the present invention, a lithium secondary battery including the non-aqueous electrolyte solution is provided.