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US 2003/0113634 A1Published application
Organic electrolytic solutions containing ethylenically unsaturated compounds, and polymer electrolytes and lithium batteries using the same
AssigneeSamsung SDI Co., Ltd.
InventorsWon-Seog Oh, Sang-Won Lee, Kwang Sup Kim, Sang-Hoon Choy
Life of this patent
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Abstract
An organic electrolytic solution includes ethylenically unsaturated compounds which suppress swelling of a battery due to the gas produced when the battery is stored at high temperature or when charging/discharging cycles are repeatedly performed, and reduces internal resistance of the battery. Polymer electrolytes and lithium batteries are manufactured using the organic electrolytic solutions. The ethylenically unsaturated compounds are vinylene carbonates, vinyl sulfones, acrylonitriles or derivatives thereof.
Claims40
An organic electrolytic solution comprising:
- a lithium salt;
- a nonaqueous organic solvent;
- and
- an ethylenically unsaturated compound,
- wherein:
- said ethylenically unsaturated compound has a boiling point at or between 50 and 170° C., and
- a content thereof is at or between 0.01 and 6% by weight, based on a total weight of said nonaqueous organic solvent.
4 more elements
An organic electrolytic solution comprising:
- a lithium salt;
- a nonaqueous organic solvent;
- an ethylenically unsaturated compound;
- and
- fluorobenzene,
- wherein:
- said ethylenically unsaturated compound has a boiling point at or between 50 and 170° C.,
- a content of said ethylenically unsaturated compound is at or between 0.01 and 6% by weight, based on a total weight of said nonaqueous organic solvent, and
- a content of said fluorobenzene is at or between 5 and 15% by weight, based on the total weight of said nonaqueous organic solvent.
6 more elements
A polymer electrolyte comprising:
- a polymeric matrix;
- a lithium salt;
- a nonaqueous organic solvent;
- and
- an ethylenically unsaturated compound,
- wherein:
- said ethylenically unsaturated compound has a boiling point at or between 50 and 170° C., and
- a content thereof is at or between 0.01 and 6% by weight, based on a total weight of said nonaqueous organic solvent.
5 more elements
A polymer electrolyte comprising:
- a polymer matrix;
- a lithium salt;
- a nonaqueous organic solvent;
- an ethylenically unsaturated compound;
- and
- fluorobenzene,
- wherein:
- said ethylenically unsaturated compound has a boiling point at or between 50 and 170° C.,
- a content of said ethylenically unsaturated compound is at or between 0.01 and 6% by weight, based on the total weight of said nonaqueous organic solvent, and
- a content of said fluorobenzene is at or between 5 and 15% by weight, based on a total weight of said nonaqueous organic solvent.
7 more elements
A lithium battery comprising:
- a cathode;
- an anode;
- and
- a polymer electrolyte interposed between said cathode and said anode, said polymer electrolyte comprising:
- a polymer matrix;
- a lithium salt;
- a nonaqueous organic solvent;
- and
- an ethylenically unsaturated compound,
- wherein the ethylenically unsaturated compound has a boiling point at or between 50 and 170° C. and a content thereof is at or between 0.01 and 6% by weight, based on a total weight of the nonaqueous organic solvent.
7 more elements
A lithium battery comprising:
- a cathode;
- an anode;
- and
- a polymer electrolyte interposed between said cathode and said anode, said polymer electrolyte comprising:
- a polymer matrix;
- a lithium salt;
- a nonaqueous organic solvent;
- an ethylenically unsaturated compound;
- and
- fluorobenzene,
- wherein the ethylenically unsaturated compound has a boiling point at or between 50 and 170° C., a content thereof is at or between 0.01 to 6% by weight, based on a total weight of the nonaqueous organic solvent, and a content of the fluorobenzene is at or between 5 and 15% by weight, based on a total weight of the nonaqueous organic solvent.
8 more elements
A lithium battery comprising:
- a cathode;
- an anode;
- and
- a gel type polymer electrolyte interposed between said cathode and said anode, said polymer electrolyte comprising a thermopolymerizable polymer or its monomer, a lithium salt, a nonaqueous organic solvent, and an ethylenically unsaturated compound,
- wherein the ethylenically unsaturated compound has a boiling point at or between 50 and 170° C., and a content thereof is at or between 0.01 to 6% by weight, based on a total weight of the nonaqueous organic solvent.
2 more elements
A method of preparing a lithium battery, comprising:
- preparing a polymer electrolyte by combining a lithium salt, a nonaqueous organic solvent, and an ethylenically unsaturated compound with one of a polymeric matrix and a gel-type polymer comprising a thermopolymerizable polymer or its monomer;
- and
- placing the prepared polymer electrolyte between a cathode and an anode,
- wherein the ethylenically unsaturated compound has a boiling point at or between 50 and 170° C., and a content thereof is at or between 0.01 to 6% by weight, based on a total weight of the nonaqueous organic solvent.
1 more element
Dependencies are inferred from the claim text.