US 12,414,469 B2
Manufacturing of a flexible piezoelectric film-based power source
Birol Ozturk, Parkville, MD (US); and Peker Milas, Baltimore, MD (US)
Assigned to Morgan State University, Baltimore, MD (US)
Filed by Morgan State University, Baltimore, MD (US)
Filed on May 15, 2024, as Appl. No. 18/664,382.
Application 18/664,382 is a division of application No. 17/216,375, filed on Mar. 29, 2021, granted, now 11,990,851.
Claims priority of provisional application 63/000,588, filed on Mar. 27, 2020.
Prior Publication US 2024/0305223 A1, Sep. 12, 2024
Int. Cl. H10N 30/077 (2023.01); H02N 2/00 (2006.01); H02N 2/18 (2006.01); H10N 30/057 (2023.01); H10N 30/098 (2023.01); H10N 30/30 (2023.01); H10N 30/50 (2023.01); H10N 30/857 (2023.01); H10N 30/87 (2023.01)
CPC H10N 30/077 (2023.02) [H02N 2/18 (2013.01); H02N 2/22 (2013.01); H10N 30/057 (2023.02); H10N 30/098 (2023.02); H10N 30/30 (2023.02); H10N 30/50 (2023.02); H10N 30/857 (2023.02); H10N 30/877 (2023.02); H10N 30/878 (2023.02); Y10T 29/42 (2015.01)] 3 Claims
OG exemplary drawing
 
1. A method for manufacturing PVDF film having at least about 90% beta content comprising:
a. depositing a first electrode film onto a first substrate layer;
b. spin coating a solvent solution containing polyvinylidene fluoride (PVDF) having at least 90% beta content onto the first electrode film at a spin rate of 9000 rpm to result in a PVDF film;
c. annealing the PVDF film;
d. depositing a second electrode film onto the PVDF film;
e. depositing a second substrate layer on top of the second electrode film;
f. forming a hole through the first and second substrate layers;
g. filling the hole with metal paste to contact the first and second electrode layers and
h. placing a drop of silver paste in the hole formed in the first substrate layer.