Johns Hopkins University

Matthew A Hagedon

Konstantinos Gerasopoulos

Mekbib Astatke

Bing Tan

Julia B Patrone

Matthew W Logan

Luke J Currano

Felix C Sage

Leslie H Hamilton

Priestly T Shuler

Sarah K Adams

A method of manufacturing a three-dimensional electrochemical lithium battery includes forming a first electrode on an underlying layer comprising aerosolizing a first ink formulation comprising a slurry including nanoparticles or microparticles of a first active material and a binder, and depositing the slurry onto the underlying layer to form a first electrode layer. A permeable separator layer is formed on the first electrode by aerosolizing a polymer precursor solution, exposing the aerosolized polymer precursor solution to a first activating radiation source to form partially cured polymer spheres in the aerosolized stream, focusing and directing the aerosolized stream onto a substrate to form the permeable separator layer of the partially cured polymer spheres, and exposing the partially cured polymer spheres on the substrate to a second activating radiation source to fully cure the partially cured polymer spheres. A second electrode is formed on the permeable separator layer by aerosolizing a second ink formulation comprising a slurry including nanoparticles or microparticles of a second active material and a binder, and depositing the slurry onto the permeable separator layer.

Aerosol jet printed lithium battery

A wearable sensor system includes a flexible patch, an electronic circuit disposed on the flexible patch, and a disposable sensor disposed on the flexible patch and connected to the electronic circuit via a socket. The disposable sensor detects a chemical compound. The electronic circuit generates a detection signal commensurate with the chemical compound detected by the disposable sensor. The disposable sensor is removably plugged into the socket, thereby permitting replacement of the disposable sensor upon satisfaction of a predetermined condition. A battery disposed is on the flexible patch and connected to the electronic circuit to power the electronic circuit. A transceiver is connected to the electronic circuit, wherein the transceiver transmits the detection signal.

Wearable sensor

Growing community of inventors

Columbia, MD, United States of America

Matthew A Hagedon