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US 11,769,928 B2Granted
Ceramic nanofiber separators
AssigneeCornell University
InventorsYong Lak Joo, Daehwan Cho, Yong Seok Kim
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Abstract
Provided herein are ceramic nanofibers and processes for preparing the same. In specific examples, provided herein are ceramic nanofiber mats for use as separators in batteries, particularly lithium ion batteries. In some embodiments, the separators described herein may include a nanofiber mat including at least one nanofiber having a continuous matrix material.
Claims20
A battery separator comprising
- a nanofiber mat, the nanofiber mat comprising at least one nanofiber, the at least one nanofiber comprising a continuous matrix material being continuous along at least 10% of the length of the nanofiber, and a plurality of discrete domains within the nanofiber, wherein the continuous matrix material comprises at least one ceramic material, a polymer, a ceramic material and a polymer, or an integrated material of ceramic and polymer, wherein the discrete domains are non-aggregated and are dispersed in a substantially uniform manner, along the length of the nanofiber, and wherein the continuous matrix material, the discrete domains, or both the continuous matrix material and the discrete domains comprise at least one ceramic material.
Dependencies are inferred from the claim text.