US 11,723,277 B2
Green energy harvesting methods for novel class of batteries and power supplies
Ramin Sadr, Los Angeles, CA (US)
Filed by Ramin Sadr, Los Angeles, CA (US)
Filed on Mar. 20, 2022, as Appl. No. 17/699,162.
Application 17/699,162 is a continuation of application No. 16/378,520, filed on Apr. 8, 2019, granted, now 11,283,003.
Prior Publication US 2022/0223781 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02N 2/18 (2006.01); H10N 30/20 (2023.01); H01L 31/02 (2006.01)
CPC H10N 30/2042 (2023.02) [H01L 31/02008 (2013.01); H02N 2/186 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An energy harvesting device, comprising:
a solar energy harvesting layer comprising a solar cell;
a mechanical energy harvesting layer comprising:
first and second substantially parallel plates;
a plurality of nanotubes connected between the first and second plates along an axial direction of the nanotubes; and
a piezoelectric cantilever connected to the first plate;
a device packaging housing the solar energy harvesting layer and the mechanical energy harvesting layer, wherein the second plate is fixedly connected to the device packaging, wherein the first plate and the piezoelectric cantilever are free to move towards and away from the second plate, wherein the piezoelectric cantilever is configured to oscillate by being attracted towards the second plate in response to the Casimir force and by being repelled from the second plate by a spring action on the axial direction of the nanotubes, and wherein the oscillations of the piezoelectric cantilever convert to electrical current; and
a voltage adder comprising:
a first input for receiving a voltage from the piezoelectric cantilever;
a second input for receiving a voltage from the solar cell; and
an output current for providing a sum of the voltages received at the first and second inputs.