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US 8,795,870 B2Granted
Lithium ion secondary battery, electronic device, electric power tool, electrical vehicle, and electric power storage system
AssigneeSony Corporation
InventorsIchiro Yamada, Tadahiko Kubota
Life of this patent
Estimating the term…
Abstract
A lithium ion secondary battery includes a cathode and an anode being opposed to each other with a separator in between, and an electrolytic solution. One or more of the cathode, the anode, and the separator contain an organic silicon compound including a compound having a polysilsesquioxane skeleton.
Claims9
A lithium ion secondary battery comprising:
- a cathode and an anode being opposed to each other with a separator in between;
- and
- an electrolytic solution,
- wherein one or more of the cathode, the anode, and the separator is coated with an organic silicon compound, the organic silicon compound including a compound having Formula 1 as a polysilsesquioxane skeleton or a compound having Formula 2 as a polysilsesquioxane skeleton or both described below,
- [Formula 1]
- [R1SiO3/2]m (1)
- where R1 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group, and m is one of integer numbers 4 to 12,
- [Formula 2]
- [R2SiO3/2]n[XSiO3/2]n-1 (2)
- where R2 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group;
- X is a hydrogen group, a halogen group, an alkyl group containing an unsaturated bond, an ester group, an ester group containing an unsaturated bond, a halogenated silyl group, or an alkyl group containing a halogenated silyl group;
- and n is one of integer numbers 4 to 12.
9 more elements
An electronic device using a lithium ion secondary battery, the lithium ion secondary battery comprising:
- a cathode and an anode being opposed to each other with a separator in between;
- and
- an electrolytic solution,
- wherein one or more of the cathode, the anode, and the separator is coated with an organic silicon compound, the organic silicon compound including a compound having Formula 1 as a polysilsesquioxane skeleton or a compound having Formula 2 as a polysilsesquioxane skeleton or both described below,
- [Formula 1]
- [R1SiO3/2]m (1)
- where R1 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group, and m is one of integer numbers 4 to 12,
- [Formula 2]
- [R2SiO3/2]n[XSiO3/2]n-1 (2)
- where R2 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group;
- X is a hydrogen group, a halogen group, an alkyl group containing an unsaturated bond, an ester group, an ester group containing an unsaturated bond, a halogenated silyl group, or an alkyl group containing a halogenated silyl group;
- and n is one of integer numbers 4 to 12.
9 more elements
An electric power tool using a lithium ion secondary battery, the lithium ion secondary battery comprising:
- a cathode and an anode being opposed to each other with a separator in between;
- and
- an electrolytic solution,
- wherein one or more of the cathode, the anode, and the separator is coated with an organic silicon compound, the organic silicon compound including a compound having Formula 1 as a polysilsesquioxane skeleton or a compound having Formula 1 as a polysilsesquioxane skeleton or both described below,
- [Formula 1]
- [R1SiO3/2]m (1)
- where R1 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group, and m is one of integer numbers 4 to 12,
- [Formula 2]
- [R2SiO3/2]n[XSiO3/2]n-1 (2)
- where R2 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group;
- X is a hydrogen group, a halogen group, an alkyl group containing an unsaturated bond, an ester group, an ester group containing an unsaturated bond, a halogenated silyl group, or an alkyl group containing a halogenated silyl group;
- and n is one of integer numbers 4 to 12.
9 more elements
An electrical vehicle using a lithium ion secondary battery, the lithium ion secondary battery comprising:
- a cathode and an anode being opposed to each other with a separator in between;
- and
- an electrolytic solution,
- wherein one or more of the cathode, the anode, and the separator is coated with an organic silicon compound, the organic silicon compound including a compound having Formula 1 as a polysilsesquioxane skeleton or a compound having Formula 1 as a polysilsesquioxane skeleton or both described below,
- [Formula 1]
- [R1SiO3/2]m (1)
- where R1 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group, and m is one of integer numbers 4 to 12,
- [Formula 2]
- [R2SiO3/2]n[XSiO3/2]n-1 (2)
- where R2 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group;
- X is a hydrogen group, a halogen group, an alkyl group containing an unsaturated bond, an ester group, an ester group containing an unsaturated bond, a halogenated silyl group, or an alkyl group containing a halogenated silyl group;
- and n is one of integer numbers 4 to 12.
9 more elements
An electric power storage system using a lithium ion secondary battery, the lithium ion secondary battery comprising:
- a cathode and an anode being opposed to each other with a separator in between;
- and
- an electrolytic solution,
- wherein one or more of the cathode, the anode, and the separator is coated with an organic silicon compound, the organic silicon compound including a compound having Formula 1 as a polysilsesquioxane skeleton or a compound having Formula 1 as a polysilsesquioxane skeleton or both described below,
- [Formula 1]
- [R1SiO3/2]m (1)
- where R1 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group, and m is one of integer numbers 4 to 12,
- [Formula 2]
- [R2SiO3/2]n[XSiO3/2]n-1 (2)
- where R2 is an alkyl group with carbon number of 1 to 12, an alkenyl group with carbon number of 1 to 12, an alkynyl group with carbon number of 1 to 12, a cycloalkyl group, or an aryl group;
- X is a hydrogen group, a halogen group, an alkyl group containing an unsaturated bond, an ester group, an ester group containing an unsaturated bond, a halogenated silyl group, or an alkyl group containing a halogenated silyl group;
- and n is one of integer numbers 4 to 12.
9 more elements
Dependencies are inferred from the claim text.