Back to results
US 2011/0214895 A1Published application
Lithium secondary battery, electrolytic solution for lithium secondary battery, electric power tool, electrical vehicle, and electric power storage system
AssigneeSony Corporation
InventorsMASAYUKI IHARA, TADAHIKO KUBOTA
Life of this patent
Estimating the term…
Abstract
A lithium secondary battery capable of obtaining superior cycle characteristics, superior storage characteristics, and superior load characteristics is provided. The lithium secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of nitrogen-containing organic anion having a Lewis acidic ligand, and at least one of inorganic anion having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
Claims11
A lithium secondary battery comprising:
- a cathode;
- an anode;
- and
- an electrolytic solution,
- wherein the electrolytic solution contains a nonaqueous solvent, a lithium ion (Li+), at least one of organic anions expressed by Formula 1 to Formula 5, and at least one of inorganic anions having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
- where R1 to R3 are a hydrogen group, a sulfonate ion group (—SO3—), or an organic group;
- X1 and X2 are a Lewis acidic ligand;
- n1 is an integer number greater than 1 or equal to 1;
- and R2 and R3 may be bonded to each other to form a ring structure.
- where R4 to R7 are a hydrogen group, a sulfonate ion group, or an organic group;
- X3 is a Lewis acidic ligand;
- n2 is an integer number greater than 1 or equal to 1;
- and R4 to R7 may be bonded to each other to form a ring structure.
- where R8 and R9 are a hydrogen group, a sulfonate ion group, or an organic group;
- X4 to X6 are a Lewis acidic ligand;
- and n3 is an integer number greater than 1 or equal to 1.
- where R10 and R11 are a hydrogen group, a sulfonate ion group, or an organic group;
- X7 and X8 are a Lewis acidic ligand;
- and n4 is an integer number greater than 2 or equal to 2.
- where R12 and R13 are a sulfonate ion group or an organic group;
- X9 and X10 are a Lewis acidic ligand;
- and n5 is an integer number greater than or equal to 1.
19 more elements
An electrolytic solution for a lithium secondary battery containing
- a nonaqueous solvent,
- a lithium ion,
- at least one of organic anions expressed by Formula 1 to Formula 5, and
- at least one of inorganic anions having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
- where R1 to R3 are a hydrogen group, a sulfonate ion group, or an organic group;
- X1 and X2 are a Lewis acidic ligand;
- n1 is an integer number greater than 1 or equal to 1;
- and R2 and R3 may be bonded to each other to form a ring structure.
- where R4 to R7 are a hydrogen group, a sulfonate ion group, or an organic group;
- X3 is a Lewis acidic ligand;
- n2 is an integer number greater than 1 or equal to 1;
- and R4 to R7 may be bonded to each other to form a ring structure.
- where R8 and R9 are a hydrogen group, a sulfonate ion group, or an organic group;
- X4 to X6 are a Lewis acidic ligand;
- and n3 is an integer number greater than 1 or equal to 1.
- where R10 and R11 are a hydrogen group, a sulfonate ion group, or an organic group;
- X7 and X8 are a Lewis acidic ligand;
- and n4 is an integer number greater than 2 or equal to 2.
- where R12 and R13 are a sulfonate ion group or an organic group;
- X9 and X10 are a Lewis acidic ligand;
- and n5 is an integer number greater than 1 or equal to 1.
18 more elements
An electric power tool mounting a lithium secondary battery including a cathode, an anode and an electrolytic solution, and moving with the use of the lithium secondary battery as a power source,
- wherein the electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of organic anions expressed by Formula 1 to Formula 5, and at least one of inorganic anions having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
- where R1 to R3 are a hydrogen group, a sulfonate ion group, or an organic group;
- X1 and X2 are a Lewis acidic ligand;
- n1 is an integer number greater than 1 or equal to 1;
- and R2 and R3 may be bonded to each other to form a ring structure.
- where R4 to R7 are a hydrogen group, a sulfonate ion group, or an organic group;
- X3 is a Lewis acidic ligand;
- n2 is an integer number greater than 1 or equal to 1;
- and R4 to R7 may be bonded to each other to form a ring structure.
- where R8 and R9 are a hydrogen group, a sulfonate ion group, or an organic group;
- X4 to X6 are a Lewis acidic ligand;
- and n3 is an integer number greater than 1 or equal to 1.
- where R10 and R11 are a hydrogen group, a sulfonate ion group, or an organic group;
- X7 and X8 are a Lewis acidic ligand;
- and n4 is an integer number greater than 2 or equal to 2.
- where R12 and R13 are a sulfonate ion group or an organic group;
- X9 and X10 are a Lewis acidic ligand;
- and n5 is an integer number greater than 1 or equal to 1.
15 more elements
An electrical vehicle mounting a lithium secondary battery including a cathode, an anode and an electrolytic solution and working with the use of the lithium secondary battery as a power source,
- wherein the electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of organic anions expressed by Formula 1 to Formula 5, and at least one of inorganic anions having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
- where R1 to R3 are a hydrogen group, a sulfonate ion group, or an organic group;
- X1 and X2 are a Lewis acidic ligand;
- n1 is an integer number greater than or equal to 1;
- and R2 and R3 may be bonded to each other to form a ring structure.
- where R4 to R7 are a hydrogen group, a sulfonate ion group, or an organic group;
- X3 is a Lewis acidic ligand;
- n2 is an integer number greater than 1 or equal to 1;
- and R4 to R7 may be bonded to each other to form a ring structure.
- where R8 and R9 are a hydrogen group, a sulfonate ion group, or an organic group;
- X4 to X6 are a Lewis acidic ligand;
- and n3 is an integer number greater than 1 or equal to 1.
- where R10 and R11 are a hydrogen group, a sulfonate ion group, or an organic group;
- X7 and X8 are a Lewis acidic ligand;
- and n4 is an integer number greater than 2 or equal to 2.
- where R12 and R13 are a sulfonate ion group or an organic group;
- X9 and X10 are a Lewis acidic ligand;
- and n5 is an integer number greater than 1 or equal to 1.
15 more elements
An electric power storage system mounting a lithium secondary battery including a cathode, an anode and an electrolytic solution, and using the lithium secondary battery as an electric power storage source,
- wherein the electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of organic anions expressed by Formula 1 to Formula 5, and at least one of inorganic anions having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
- where R1 to R3 are a hydrogen group, a sulfonate ion group, or an organic group;
- X1 and X2 are a Lewis acidic ligand;
- n1 is an integer number greater than 1 or equal to 1;
- and R2 and R3 may be bonded to each other to form a ring structure.
- where R4 to R7 are a hydrogen group, a sulfonate ion group, or an organic group;
- X3 is a Lewis acidic ligand;
- n2 is an integer number greater than 1 or equal to 1;
- and R4 to R7 may be bonded to each other to form a ring structure.
- where R8 and R9 are a hydrogen group, a sulfonate ion group, or an organic group;
- X4 to X6 are a Lewis acidic ligand;
- and n3 is an integer number greater than 1 or equal to 1.
- where R10 and R11 are a hydrogen group, a sulfonate ion group, or an organic group;
- X7 and X8 are a Lewis acidic ligand;
- and n4 is an integer number greater than 2 or equal to 2.
- where R12 and R13 are a sulfonate ion group or an organic group;
- X9 and X10 are a Lewis acidic ligand;
- and n5 is an integer number greater than 1 or equal to 1.
15 more elements
Dependencies are inferred from the claim text.