High energy density storage device
View Patent ↗An energy storage device for providing electrical energy storage of high specific energy density for use in consumer and commercial devices and for storing power to be provided to an electrical power grid. An example of the energy storage device has a plurality of layers of high dielectric constant material, such as Barium Titanate or Hexagonal Barium Titanate, sandwiched between electrode layers made up of a variety of possible conducting materials. The example device includes additional insulating layers, such as Diamond-Like Carbon Coating, between the electrodes that provide for very high breakdown voltages.
1. An energy storage device for storing electrical energy, comprising:
a housing;
a capacitor including a diamond or diamond-like material layer; and
a voltage step-down component configured to step down the voltage of the capacitor for providing power to a battery powered device,
wherein said energy storage device is encased in said housing configured to replace one or more removable batteries for installation in the electric device;
wherein said diamond or diamond-like carbon is comprised in an electrically insulating layer having high heat conductivity.
2. The device of claim 1 , wherein said energy storage device is configured to replace a commercially available disposable battery.
3. The device of claim 1 , wherein said energy storage device is configured to replace an AAA size disposable battery.
4. The device of claim 1 , wherein said energy storage device is configured to replace a C size disposable battery.
5. The device of claim 1 , wherein said energy storage device is configured to replace a D size disposable battery.
6. The device of claim 1 , wherein said capacitor further comprises a dielectric layer including particles dispersed in an electrically insulating material, said particles including BaTiO3.
7. The device of claim 6 , wherein said particles also include Al 2 O 3 .
8. The device of claim 6 further comprising a conducting layer, wherein said conducting layer includes material having a Coefficient of Thermal Expansion that is close to that of the dielectric layer.
9. The device of claim 1 , wherein said insulating layer is about 1 micron thick or less.
10. The energy storage device of claim 1 , further comprising a voltage converting component configured to convert a source voltage into a charge voltage to charge the capacitor.
11. An energy storage device for storing energy, comprising:
a housing;
a capacitor comprising a stack of:
a first insulating layer comprising an electrically insulating material having at least good heat conductivity,
a dielectric layer comprising particles dispersed in an electrically insulating material, said particles including BaTiO3,
a first conducting electrode layer,
a second conducting electrode layer; and
a second insulating layer comprising the electrically insulating material having at least good heat conductivity, wherein said dielectric layer is provided between said first conducting electrode layer and said second conducting electrode layer;
a voltage step-down component configured to step down the voltage of the capacitor to provide power to an electric device, wherein said capacitor is configured to connect to a voltage converting component configured to convert a source voltage into a charge voltage to charge the capacitor; and
said energy storage device is encased in said housing configured for installation in the electric device;
wherein said electrically insulating material having at least good heat conductivity includes a material having a diamond-like structure.
12. The device of claim 11 , wherein said electrically insulating material having at least good heat conductivity includes carbon.
13. The device of claim 11 , wherein said first insulating layer and/or said second insulating layer is about 1 micron thick or less.
14. The device of claim 11 , wherein one or both of said first conducting layer or said second conducting layer includes material having a Coefficient of Thermal Expansion that is close to that of the dielectric layer.
15. The device of claim 11 , wherein said energy storage device is configured to replace a commercially available disposable battery.
16. The device of claim 11 , further comprising a housing, wherein said voltage converting component is included in said energy storage device.
17. An energy storage device for storing energy, comprising:
a capacitor comprising a stack:
a first insulating layer comprising an electrically insulating material including a material at least partially organized in a diamond-like structure,
a dielectric layer comprising particles dispersed in an electrically insulating material, said particles including BaTiO 3 ,
a first conducting electrode layer,
a second conducting electrode layer; and
a second insulating layer comprising the electrically insulating material having at least good heat conductivity, wherein
said dielectric layer is provided between said first conducting electrode layer and said second conducting electrode layer; and
a voltage step-down component configured to step down the voltage of the capacitor for providing for power to an electrical device, wherein
a voltage converting component is provided to convert a utility voltage to a charge voltage for charging the capacitor; and wherein
said energy storage device is configured for installation in the electric device.
18. An energy storage system comprising:
a plurality of capacitors, each capacitor comprising a plurality of stacks each including:
a first insulating layer comprising an electrically insulating material including a material at least partially organized in a diamond-like structure,
a dielectric layer comprising particles dispersed in an electrically insulating material,
a first conducting electrode layer,
a second conducting electrode layer; and
a second insulating layer comprising the electrically insulating material having at least good heat conductivity, wherein
said dielectric layer is provided between said first conducting electrode layer and said second conducting electrode layer;
a voltage inverting component to convert the output voltage of said plurality of capacitors into an AC voltage for connecting to an electric power grid to provide electrical power to the electric power grid; and
a voltage converting component to convert the voltage of a power source to a voltage for charging said plurality of capacitors, wherein
each one of said plurality of capacitors outputs energy at a voltage of more than 1000 volts.
19. The energy storage system of claim 18 , wherein said electrically insulating material includes diamond or diamond-like carbon.
20. The energy storage system of claim 18 , said particles dispersed in the electrically insulating material including BaTiO 3 .