Electrolytic solution and lithium battery employing the same
AssigneeSamsung SDI Co., Ltd.
InventorsDong-joon Lee, Young-gyoon Ryu, Dong-min Im, Seok-soo Lee
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Abstract
An organic electrolytic solution including a lithium salt, an organic solvent, and a linear or cyclic polymerizable monomer that is negatively charged due to localization of electrons on the monomer, and a lithium battery employing the same. Since the organic electrolytic solution prevents decomposition of an electrolyte and elution from or precipitation of metal ions, the lithium battery employing the organic electrolytic solution has excellent lifetime characteristics and cycle characteristics.
Claims9
An organic electrolytic solution comprising:
- a lithium salt;
- an organic solvent;
- and
- a linear or cyclic polymerizable monomer that is negatively charged due to localization of electrons on the monomer,
- wherein the polymerizable monomer is at least one monomer selected from the group of monomers represented by Formulae 1 to 4 below:
- wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, and R23, which are the same or different, are each independently selected from the group consisting of a hydrogen atom, a nitro group, an amino group, a hydroxyl group, a halogen atom, a cyano group, a carboxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C2-C20 alkoxycarbonyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C3-C20 heteroaryl group, a substituted or unsubstituted C2-C20 alkylcarbonyl group, a substituted or unsubstituted C7-C30 arylcarbonyl group, and a substituted or unsubstituted C4-C30 heteroarylcarbonyl group.
A lithium battery comprising:
- a cathode;
- an anode;
- and an organic electrolytic solution, wherein the organic electrolytic solution comprises a lithium salt;
- an organic solvent;
- and a polymer of a linear or cyclic polymerizable monomer that is negatively charged due to localization of electrons on the monomer.
Dependencies are inferred from the claim text.