Sun, Chuanfu | Search NASA

DOE OSTI2021

Bismuth composite nanoparticle anodes, methods of making same, and uses thereof

Provided are bismuth composite anodes and methods of making same. The bismuth composite anodes comprise nanomaterials comprising bismuth domains (e.g., bismuth nanoparticles) disposed in a lithium phosphate material. The bismuth domains (e.g., bismuth nanoparticles) may be formed in situ. The nanomaterials may be at least partially or completely covered in a layer of a conducting material. The bismuth composite anodes also comprise a bulk conducting material. The nanomaterials and bulk conducting materials are present as a mixture. Also, provided are batteries comprising one or more bismuth composite anodes.

Wang, YuHuang↗

DOE OSTI2020

Composite materials with self-regulated infrared emissivity and environment responsive fibers

A composite fabric having self-regulating Infrared emissivity includes meta fibers formed with optical nanostructures and an environment (temperature and/or moisture) responsive mechanism configured to adjust a relative disposition between the optical structures to control the electromagnetic coupling therebetween, thus regulating the infrared emissivity of the composite fabric to maintain a user of the fabric in a temperature/moisture comfort zone. The environment responsive mechanism may include a temperature responsive polymer layer on the fiber capable of expansion/shrinkage depending on the applied temperature, or a moisture responsive fiber changing its shape depending on the moisture level to affect spacing between the optical nanostructures.

Wang, Yuhuang↗