Abstract
Described herein is a graphene-enhanced triboelectric nanogenerator with magnetically levitated suspension in the form of a shoe insole insert producing energy from the rise and fall of a human heel when walking in shoes for the mobile charging of small to medium-sized electronic devices.
Claims
1. Use of rare-earth metal magnets provides minimum wear suspension for contact and release of the opposing pads.
2. Graphene acts as a better electrical conductor and is less susceptible to oxidation by human sweat than metal.
Description
BRIEF DESCRIPTION OF DRAWINGS
[0003] 1 of FIG. 1 shows the rare-earth magnet adhered on top 2 of FIG. 1 which depicts the top flexible magnetic pad. 1 of FIG. 2 illustrates the positive graphene-enhanced triboelectric pad adhered on top of the inner side of the flexible magnetic pad which is shown by 2 of FIG. 2. 3 of FIG. 2 depicts the wire that is attached to 3 of FIG. 2 to conduct the energy produced. 1 of FIG. 3 illustrates the outside of the bottom flexible magnetic pad. 2 of FIG. 3 depicts the rare-earth magnet adhered on surface of 1 of FIG. 3. 1 of FIG. 4 shows the inner side of the bottom flexible magnetic pad. 2 of FIG. 4 shows the opposing negative graphene-enhanced triboelectric pad adhered on top of 1 of FIG. 4. 3 of FIG. 4 illustrates the wire connected to 2 of FIG. 4. 1 of FIG. 5 illustrates the side view of the assembled apparatus depicting the magnetic levitation created by the opposing rare-earth magnets and 1A of FIG. 5 shows the state of compression of the apparatus.
DETAILED DESCRIPTION OF INVENTION
[0004] In regards to FIG. 1, 1 of FIG. 1 one shows the rare-earth metal magnet adhered to 2 of FIG. 1 in homopolar position to 2 of FIG. 3 adhered to 1 of FIG. 3 this allows for compression and repulsion, by the heel of a human foot, between 2 of FIGS. 1 and 1 of FIG. 3 subsequently allowing contact and release between 1 and 2 of FIGS. 2 and 1 and 2 of FIG. 4.
[0005] In respect to FIG. 2, 1 of FIG. 2 depicts the positive graphene-enhanced triboelectric pad that is adhered to 2 of FIG. 2 and connected to 3 of FIG. 2. When 1 of FIG. 2 contacts with 2 of FIG. 4 from compression of a human heel 1 of FIG. 2 becomes positively charged. 3 of FIG. 2 closes the circuit to allow flow of current from 1 of FIG. 2 through the graphene.
[0006] Regarding FIG. 3, 1 of FIG. 3 depicts the bottom flexible magnetic pad acting as the anchor while in the shoe and static base for magnetic repulsion by rare-earth metal magnet. 2 of figure of 3 depicts the rare-earth metal magnet disc adhered to 1 of FIG. 3.
[0007] In respect to FIG. 4, 1 of figure shows the inside of the bottom half of the apparatus which has adhered to it 2 of FIG. 4 the negative graphene-enhanced triboelectric pad after contact with 1 of FIG. 2 when compression from a human heel occurs. 3 of FIG. 4 represents the wire connected to 2 of FIG. 4 which when 2 of FIG. 4 becomes negatively charged after contact with 1 of FIG. 2 energy flows across the graphene and through 3 of FIG. 4 to the device.
[0008] In regard to FIG. 5, 1 of FIG. 5 shows the assembled apparatus where 2 of FIG. 1 is adhered to 1 of FIGS. 4 and 2 of FIG. 1 is being magnetically levitated over 1 of FIG. 3 by 1 of FIGS. 1 and 1 of FIG. 3 via homopolar repulsion. 1A of FIG. 5 represents the compression of the apparatus causing contact between 1 of FIGS. 2 and 2 of FIG. 4 creating charge.
REFERENCES
[0009] Pat app serial no. US2014/0084784 A1. By extrapolating triboelectric material surface area to a larger scale, as shown in Gomes et al, arVix:1803.10070 [comd-mat.mes-hall] (2018),
[0010] Sharma, K. R. Graphene materials. N.Y. 2014. pp 9
[0011] U.S. Pat. No. 5,825,105
