Intellectual Property India Publishes Patent Application for A Wearable Piezoelectric Nanogenerator-Based System For Neck Movement Monitoring

MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202641081453 A) filed by Btp Madhav; and Koneru Lakshmaiah Education Foundation on July 01, 2026, for A Wearable Piezoelectric Nanogenerator-Based System For Neck Movement Monitoring.

Inventors include Dhara Sateesh; Vivekananthan Venkateswaran; and B T P Madhav.

The application for the patent was published on July 10, 2026, under issue no. 28/2026.

Abstract: The piezoelectric nanogenerator was fabricated using a lead-free composite film made of potassium sodium niobate Lithium Antimony [1 – x] K0.5Na0.5NbO3 + x Li2SbO3 to generate electrical energy from abundant mechanical energy sources, such as human movements and ambient mechanical vibrations. The environmentally friendly KNN Li2SbO3 material exhibited a significant piezoelectric coefficient and had an orthorhombic crystal structure. The potassium carbonate (K2CO3), sodium carbonate (Na2CO3), niobium pentoxide (Nb2O5), Lithium carbonate (Li2CO3) and Antimony Pentoxide (Sb2O5) are the primary materials that were used as precursors. These precursors were stoichiometrically measured, mixed using an agate mortar in a wet medium, and then heated at 1050°C for 10 hours to synthesize KNN Li2SbO3 via the solid-state reaction (SSR) technique. The prepared material was characterized using various analytical tools. The primary orthorhombic crystal structure, exhibited at 45° was confirmed by XRD measurements. Raman spectroscopy further supported the crystalline quality of the material, with a corresponding Raman shift observed. Additionally, the KNN Li2SbO3 nano particles were examined through FE SEM analysis. The characterized KNN Li2SbO3 material was subsequently used to prepare the composite thin film for the nanogenerator device. The composite thin film was prepared using poly dimethyl siloxane (PDMS) polymer with various weight percentage of KNN Li2SbO3 (0.06%) 5 wt% to 25 wt%. The prepared thin film was utilized to fabricate the nanogenerator device and the device characteristics studies were carried out by the keithley 6514 electrometer equipped with the linear motor setup. As prepared, the nanogenerator exhibited excellent output voltage, current and power density achieved.

Disclaimer: Curated by HT Syndication.