Abstract: An energy storage device according to one aspect of the present invention includes an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed therebetween, in which the electrode assembly is in a state where a load is applied to the electrode assembly in a stacking direction, the positive electrode contains a positive active material, tungsten, boron, sulfur, phosphorus, silicon, titanium, nitrogen, germanium, aluminum, zirconium or a different element which is a combination thereof is present on a surface of the positive active material, and a creep strain after a load of 2 MPa is held for 60 seconds at a temperature of 65° C. in the separator is 0.20 or less.

Abstract: One aspect of the present invention is a nonaqueous electrolyte energy storage device including a positive electrode containing manganese-containing positive active material particles in which aluminum is present at least on a surface, and a nonaqueous electrolyte containing a salt represented by the following formula (1). Another aspect of the present invention is a method of producing a nonaqueous electrolyte energy storage device, including producing a positive electrode containing manganese-containing positive active material particles in which aluminum is present at least on a surface, and providing a nonaqueous electrolyte containing a salt represented by the following formula (1): wherein R1 is a hydrogen atom, a halogen atom, or an organic group, Mm+ is an alkali metal cation, an alkaline earth metal cation, or an onium cation. m is an integer equivalent to the number of valence of a cation represented by Mm+. when m is 2 or more, a plurality of R1s are each independently as defined above.

Abstract: An energy storage device according to an aspect of the present invention includes: a positive electrode; a negative electrode; and a separator disposed between the positive electrode and the negative electrode, in which the positive electrode includes a positive active material layer containing a positive active material having an average primary particle size of 1.0 ?m or more, and a creep strain in the separator after a load of 2 MPa is held for 24 hours at a temperature of 65° C. is 11% or more and 28% or less.

Abstract: A nonaqueous electrolyte energy storage device according to an aspect of the present invention includes: a separator including a porous substrate layer; and a nonaqueous electrolyte, where the substrate layer has a porosity of 44% or more, and the nonaqueous electrolyte contains a cyclic disulfone compound.

Abstract: One aspect of the present invention is a nonaqueous electrolyte energy storage device including a positive electrode containing manganese-containing positive active material particles in which aluminum is present at least on a surface, and a nonaqueous electrolyte containing a salt represented by the following formula (1). Another aspect of the present invention is a method of producing a nonaqueous electrolyte energy storage device, including producing a positive electrode containing manganese-containing positive active material particles in which aluminum is present at least on a surface, and providing a nonaqueous electrolyte containing a salt represented by the following formula (1): wherein R1 is a hydrogen atom, a halogen atom, or an organic group, Mm+ is an alkali metal cation, an alkaline earth metal cation, or an onium cation. m is an integer equivalent to the number of valence of a cation represented by Mm+. when m is 2 or more, a plurality of R1s are each independently as defined above.

Abstract: An outboard motor includes a drive unit and a bracket assembly mounting the drive unit on an associated watercraft. The bracket assembly includes a swivel bracket that carries the drive unit for pivotal movement about a steering axis that extends generally vertically, and a clamping bracket that supports the swivel bracket and the drive unit for pivotal movement about a tilt axis that extends generally horizontally. Either the swivel bracket or the clamping bracket, at least in part, has a first flange, a second flange spaced apart from the first flange, and a web that extends between the first and second flanges to connect together the first and second flanges. The first and second flanges extend generally parallel to the tilt axis. The web extend generally normal to the tilt axis.

Abstract: An outboard motor includes a drive unit and a bracket assembly mounting the drive unit on an associated watercraft. The bracket assembly includes a swivel bracket that carries the drive unit for pivotal movement about a steering axis that extends generally vertically, and a clamping bracket that supports the swivel bracket and the drive unit for pivotal movement about a tilt axis that extends generally horizontally. Either the swivel bracket or the clamping bracket, at least in part, has a first flange, a second flange spaced apart from the first flange, and a web that extends between the first and second flanges to connect together the first and second flanges. The first and second flanges extend generally parallel to the tilt axis. The web extend generally normal to the tilt axis.