1. A nonaqueous electrolyte secondary battery comprising a positive electrode including a positive electrode current collector carrying a positive electrode material mixture layer thereon, a negative electrode including a negative electrode current collector carrying a negative electrode material mixture layer thereon, a separator provided between the positive electrode and the negative electrode and a nonaqueous electrolyte solution, wherein
the positive electrode current collector is a conductive body containing aluminum,
the positive electrode material mixture layer includes a first material mixture layer and a second material mixture layer formed on the first material mixture layer,
the first material mixture layer is made of a first material mixture containing a first organic material which is soluble or dispersible in water and
the second material mixture layer is made of a second material mixture containing a second organic material which is soluble or dispersible in an organic solvent.
2. The nonaqueous electrolyte secondary battery of claim 1, wherein
the first material mixture layer is a layer formed by drying a first solution mixture prepared by mixing the first material mixture with water and
the second material mixture layer is a layer formed by drying a second solution mixture prepared by mixing the second material mixture with an organic solvent.
3. The nonaqueous electrolyte secondary battery of claim 2, wherein
an aluminum oxide coating is formed at an interface between the positive electrode current collector and the first material mixture layer by a reaction between water in the first solution mixture and aluminum in the positive electrode current collector.
4. The nonaqueous electrolyte secondary battery of claim 1, wherein
the first material mixture contains a conductive material made of a carbon material.
5. The nonaqueous electrolyte secondary battery of claim 1, wherein
the first material mixture contains a positive electrode active material made of aluminum-containing lithium composite oxide.
6. The nonaqueous electrolyte secondary battery of claim 1, wherein
the first material mixture contains a positive electrode active material made of nickel-containing lithium composite oxide.
7. The nonaqueous electrolyte secondary battery of claim 1, wherein
the first material mixture contains a first binder made of the first organic material and the second material mixture contains a second binder made of the second organic material.
8. The nonaqueous electrolyte secondary battery of claim 7, wherein
the first binder contains polytetrafluoroethylene, denatured polytetrafluoroethylene, a tetrafluoroethylene-hexafluoropropylene copolymer or a denatured tetrafluoroethylene-hexafluoropropylene copolymer and
the second binder contains polyvinylidene fluoride or denatured polyvinylidene fluoride.
9. A nonaqueous electrolyte secondary battery comprising a positive electrode including a positive electrode current collector carrying a positive electrode material mixture layer thereon, a negative electrode including a negative electrode current collector carrying a negative electrode material mixture layer thereon, a separator provided between the positive electrode and the negative electrode and a nonaqueous electrolyte solution, wherein
the positive electrode current collector is a conductive body containing aluminum and
an undercoating containing an organic material which is soluble or dispersible in water and a conductive material made of a carbon material is provided between the positive electrode current collector and the positive electrode material mixture layer.
10. The nonaqueous electrolyte secondary battery of claim 9, wherein
the undercoating is formed by drying a solution mixture prepared by mixing the organic material and the conductive material into water.
11. The nonaqueous electrolyte secondary battery of claim 10, wherein
an aluminum oxide coating is formed at an interface between the positive electrode current collector and the undercoating by a reaction between water in the solution mixture and aluminum in the positive electrode current collector.
12. The nonaqueous electrolyte secondary battery of claim 1, wherein
a positive electrode active material contained in the positive electrode material mixture layer is a compound represented by a general formula of LiNixCoyAl1-x-yO2, where 0.7<x<1.0 and 0<y<0.3.
13. The nonaqueous electrolyte secondary battery of claim 9, wherein
a positive electrode active material contained in the positive electrode material mixture layer is a compound represented by a general formula of LiNixCoyAl1-x-yO2 where 0.7<x<1.0 and 0<y<0.3.
14. A method for manufacturing a positive electrode of a nonaqueous electrolyte secondary battery comprising the steps of:
(a) applying to an aluminum-containing positive electrode current collector a first material mixture slurry prepared by mixing a first material mixture containing a first organic material which is soluble or dispersible in water with water and drying the applied slurry to form a first material mixture layer; and
(b) applying to the first material mixture layer a second material mixture slurry prepared by mixing a second material mixture containing a second organic material which is soluble or dispersible in an organic solvent with an organic solvent and drying the applied slurry to form a second material mixture layer after the step (a).
15. The method for manufacturing a positive electrode of a nonaqueous electrolyte secondary battery of claim 14, wherein
in the step (a), an aluminum oxide coating is formed at an interface between the positive electrode current collector and the first material mixture layer by a reaction between water in the first material mixture slurry and aluminum in the positive electrode current collector.
16. The method for manufacturing a positive electrode of a nonaqueous electrolyte secondary battery of claim 14, wherein
the first material mixture contains a conductive material made of a carbon material.
17. A method for manufacturing a positive electrode of a nonaqueous electrolyte secondary battery comprising the steps of:
(a) applying to an aluminum-containing positive electrode current collector a slurry prepared by mixing an organic material which is soluble or dispersible in water and a conductive material made of a carbon material into water and drying the applied slurry to form an undercoating; and
(b) applying to the undercoating a material mixture slurry made of a material mixture and drying the applied slurry to form a positive electrode material mixture layer after the step (a).
18. The method for manufacturing a positive electrode of a nonaqueous electrolyte secondary battery of claim 17, wherein
in the step (a), an aluminum oxide coating is formed at an interface between the positive electrode current collector and the undercoating by a reaction between water in the slurry and aluminum in the positive electrode current collector.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An inertia locking mechanism, the inertia locking mechanism coupled to a handle of a door handle assembly in a door of a vehicle, comprising:
a housing defining an opening;
a weight component mounted to the housing, that is displaced when a crash force is applied to the weight component, and that returns to a home position when the crash force is removed, wherein the crash force results from a crash of the vehicle;
a locking tab that defines a lever arm;
a cable that attaches to the weight component at one end and to the locking tab at the other end and that causes movement of the locking tab when the weight component is displaced;
a spring positioned in the housing that retrains the weight component from moving when the crash force is not applied; and
a locking arm operatively connected to the lever arm, wherein the weight component will be moved by the crash force, thereby moving the lever arm to cause the locking arm to move through the opening in the housing to extend outside the housing, so that when the handle is moved to a certain point by the crash force, the locking arm will engage a non-movable member of the door handle assembly to prevent the handle from further opening to therefore prevent inadvertent opening of the door during the crash.
2. The inertia locking mechanism of claim 1, wherein the housing defines an aperture that further defines a cone-shaped surface and wherein the weight component has a cone-shaped section.
3. The inertia locking mechanism of claim 1, wherein the lever arm further defines a boss.
4. The inertia locking mechanism of claim 3, wherein the locking arm further defines a slot for receiving the boss of the lever arm.
5. The inertia locking mechanism of claim 4, wherein the locking arm is pivotal between a first position and a second position.
6. The inertia locking mechanism of claim 5, wherein the spring is positioned on the cable.
7. The inertia locking mechanism of claim 5, wherein the locking arm pivots to the second position when a crash force is applied to the weight component and wherein the locking arm pivots to the first position when the crash force is removed.
8. The inertia locking mechanism of claim 1, wherein the spring comprises a coil spring.
9. The inertia locking mechanism of claim 7, wherein the locking arm engages the non-movable member when the locking arm pivots to the second position.
10. The inertia locking mechanism of claim 7, wherein the spring urges the weight component to the home position when the crash force is removed.
11. The inertia locking mechanism of claim 1, wherein the weight component comprises a barbell-shaped portion and a mass.
12. An inertia locking assembly that resists unlatching of a door of a vehicle during a crash, comprising:
a housing defining a hole, the housing adapted to be mounted to a door handle;
a weight component;
a cable connecting the weight component to a locking tab, the locking tab defining a lever arm, the cable extending through the hole;
a spring that restrains the weight component in a home position; and
a locking arm pivotally mounted to the housing and operatively connected to the lever arm, whereby a crash force caused by a crash causes movement of the weight component from the home position away from the housing, wherein the movement of the weight component which causes movement of the lever arm which in turn causes the locking arm to pivot, so that the locking arm is positioned to engage a non-movable member of the door handle, when the handle is moved to a certain position by the crash force to prevent the door from unlatching during a crash.
13. The inertia locking assembly of claim 12, wherein the lever arm further defines a boss.
14. The inertia locking assembly of claim 12, wherein the locking arm further defines a slot for receiving the boss of the lever arm.
15. A door mechanism that resists unlatching of a vehicle door during a crash, comprising:
a door handle assembly further comprising a door handle;
an inertia locking assembly further comprising:
a housing attached to the door handle, the housing including a hole;
a weight component that is permitted to travel in the hole, wherein the weight component is displaced from a home position when a force is applied to the weight component;
a spring that restrains the weight component in the home position when the force is not applied;
a locking tab operatively connected to a pivoting locking arm; and
a cable that attaches to the weight component and to the locking tab, wherein when the force is applied to the weight component to cause the weight component to move away from the home position, the weight component moves the cable which causes the locking tab to move the locking arm so that the locking arm pivots to enable engagement with a non-movable member of the door handle assembly after the door handle has moved to a certain point by the force, to thereby prevent the door handle from further movement and from opening the door.
16. The door mechanism of claim 15 wherein the door handle is a pull-type door handle.
17. The door mechanism of claim 15 wherein the locking tab further defines a lever arm that defines a boss.