Conductive polymer emulsion
View Patent ↗The present invention provides for an emulsion comprising solid particles of a single composition, or a mixture thereof, comprising a polymer comprising one monomer of an aryl methacrylate, or a mixture thereof, co-polymerized with a monomer of an alkyl methacrylate, or a mixture thereof; wherein Ar is an aryl group and R is an alkyl group, and n:m has a ratio of from about 0:100 to about 100:0.
1. An emulsion comprising solid particles of a polymer, or a mixture thereof, comprising one monomer of
or a mixture thereof, co-polymerized with a monomer of
or a mixture thereof; wherein Ar is an aryl group and R is any C 2 -C 10 alkyl group, and n:m has a ratio of from 0:100 to 100:0; wherein the polymer comprises at least one monomer of
co-polymerized with at least one monomer of
and Ar is a polycyclic aryl group.
2. The emulsion of claim 1 , wherein the emulsion is aqueous.
3. The emulsion of claim 1 , wherein Ar is any polycyclic aryl group with two, three or four aryl rings.
4. The emulsion of claim 3 , wherein Ar is
5. The emulsion of claim 1 , wherein R is any C 2 -C 5 alkyl group.
6. The emulsion of claim 5 , wherein R is an ethyl, propyl, isopropyl, butyl, s-butyl, isobutyl, or t-butyl group.
7. The emulsion of claim 1 , wherein the solid particles having an average particle size of about 10 nm to about 500 nm.
8. The emulsion of claim 7 , wherein the solid particles having an average particle size of about 50 nm to about 200 nm.
9. The emulsion of claim 7 , wherein the solid particles having an average particle size of about 80 nm to about 500 nm.
10. The emulsion of claim 1 , wherein n:m has a ratio of from 0:100 to about 1:1.
11. The emulsion of claim 1 , wherein the solid particles form at least about 10 weight percent.
12. The emulsion of claim 11 , wherein the solid particles form at least about 20 weight percent.
13. The emulsion of claim 1 , wherein the Ar
monomer is polymerized from naphthalene methacrylate, anthracene methacrylate, pyrene methacrylate, 1-naphthalenemethyl methacrylate, 9-anthracenemethyl methacrylate, or 1-pyrenemethyl methacrylate.
14. A method for making an electrode for use in a lithium ion battery comprising the steps of:
a) forming an emulsion comprising solid particles of a polymer, or a mixture thereof, comprising one monomer of
or a mixture thereof, co-polymerized with a monomer of
or a mixture thereof; wherein Ar is an aryl group and R is any C 2 -C 10 alkyl group, and n:m has a ratio of from 0:100 to 100:0; wherein the polymer comprises at least one monomer of
co-polymerized with at least one monomer of
b) to this solution adding micro or nanoparticles of at least one element selected from the group consisting of: silicon, Sn, and graphite to form a slurry;
c) mixing the slurry to form a homogenous mixture;
d) depositing a thin film of said thus obtained mixture over top of a substrate; and
e) drying the resulting composite to form said silicon electrode.
15. A lithium ion battery having a silicon electrode incorporating solid particles of a polymer, or a mixture thereof, comprising one monomer of
or a mixture thereof, co-polymerized with a monomer of
or a mixture thereof; wherein Ar is an aryl group and R is any C 2 -C 10 alkyl group, and n:m has a ratio of from 0:100 to 100:0; wherein the polymer comprises at least one monomer of
co-polymerized with at least one monomer of