Metal oxide nanofiber electrode and method

Patent metadata

Field	Value
Publication number	US-11211598-B2
Application number	US-201615776720-A
Country	US
Kind code	B2
Filing date	Nov 16, 2016
Priority date	Nov 16, 2015
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

A nanofiber based micro-structured material including metal fibers with metal oxide coatings and methods are shown. In one example, nanofiber based micro-structured material is used as an electrode in a battery, such as a lithium ion battery, where the nanofibers of micro-structured material form a nanofiber cloth with free-standing, core-shell structure.

First claim

What is claimed is:

1. A battery, comprising:
a first electrode, including:
a fiber cloth wherein the fibers include a metal core and a smooth metal oxide surface;
wherein the metal core is crystalline and the metal oxide surface is amorphous;

a second electrode; and
an electrolyte in contact with both the first electrode and the second electrode.

2. The battery of claim 1 , wherein the fibers include a nickel metal core and a nickel oxide surface.

3. The battery of claim 1 , wherein the fibers have a diameter less than approximately 1 micro meter.

4. The battery of claim 1 , wherein the metal oxide surface has a thickness of approximately 20 nanometers.

5. The battery of claim 1 , wherein the metal oxide surface includes a continuous shell of consistent thickness.

Assignees

• Univ California

Inventors

• Ozkan Cengiz S
• Ozkan Mihrimah
• Bell Jeffrey
• Ye Rachel

Classifications

• B22F1/16

  Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F9/20

  starting from solid metal compounds · CPC title

• H01G11/46

  Metal oxides · CPC title

• H01M4/1395

  of electrodes based on metals, Si or alloys · CPC title

• B22F2304/05

  Submicron size particles · CPC title