Battery electrode with metal particles and pyrolyzed coating

Patent metadata

Field	Value
Publication number	US-2017149053-A1
Application number	US-201715424549-A
Country	US
Kind code	A1
Filing date	Feb 3, 2017
Priority date	Mar 28, 2012
Publication date	May 25, 2017
Grant date	—

Abstract

A method is provided for forming a metal battery electrode with a pyrolyzed coating. The method provides a metallorganic compound of metal (Me) and materials such as carbon (C), sulfur (S), nitrogen (N), oxygen (O), and combinations of the above-listed materials, expressed as Me X C Y N Z S XX O YY , where Me is a metal such as tin (Sn), antimony (Sb), or lead (Pb), or a metal alloy. The method heats the metallorganic compound, and as a result of the heating, decomposes materials in the metallorganic compound. In one aspect, decomposing the materials in the metallorganic compound includes forming a chemical reaction between the Me particles and the materials. An electrode is formed of Me particles coated by the materials. In another aspect, the Me particles coated with a material such as a carbide, a nitride, a sulfide, or combinations of the above-listed materials.

First claim

We claim:

1 - 16 . (canceled)

17 . A battery electrode comprising:
metal (Me) particles selected from a group consisting of metals and metal alloys; a coating formed over the Me particles, formed from materials selected from a group consisting of carbon (C), sulfur (S), nitrogen (N), oxygen (O), and combinations of the above-listed materials, expressed as C Y N Z S XX O YY ;
where Y is greater than 0;
where Z is greater than or equal to 0;
where XX is greater than or equal to 0; and,
where YY is greater than or equal to 0.

18 . The battery electrode of claim 17 wherein the materials are selected from a group consisting of a carbide, a nitride, a sulfide, and combinations of the above-listed materials.

19 . The battery electrode of claim 17 wherein the Me particles are selected from a group consisting of tin (Sn), antimony (Sb), lead (Pb), and combinations of the above-listed metals.

20 . The battery electrode of claim 17 wherein at least one variable selected from the consisting of Z, XX , and YY is greater than zero, when Y is greater than zero.

21 . A battery comprising:
an electrolyte; an ion-permeable membrane; a cathode; an anode comprising:
metal (Me) particles selected from a group consisting of metals and metal alloys;
a coating formed over the Me particles, formed from materials selected from a group consisting of carbon (C), sulfur (S), nitrogen (N), oxygen (O), and combinations of the above-listed materials, expressed as C Y N Z S XX O YY ;
where Y is greater than 0;
where Z is greater than or equal to 0;
where XX is greater than or equal to 0; and,
where YY is greater than or equal to 0.

22 . The battery of claim 21 wherein the materials are selected from a group consisting of a carbide, a nitride, a sulfide, and combinations of the above-listed materials.

23 . The battery of claim 21 wherein the Me particles are selected from a group consisting of tin (Sn), antimony (Sb), lead (Pb), and combinations of the above-listed metals.

24 . The battery of claim 21 wherein at least one variable selected from the consisting of Z, XX , and YY is greater than zero, when Y is greater than zero.

Assignees

• Sharp Laboratories America Inc

Inventors

• Lu Yuhao
• Wang Long
• Lee Jong-Jan

Classifications

• H02J7/70

  characterised by the mechanical construction · CPC title

• H01M50/414

  Synthetic resins, e.g. thermoplastics or thermosetting resins · CPC title

• H01M50/426

  Fluorocarbon polymers · CPC title

• H01M4/0471

  involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title

• B01J6/008

  Pyrolysis reactions (of hydrocarbons C10G9/00) · CPC title