Battery structures and related methods
View Patent ↗An electrochemical device includes a first electrode in electrical communication with a first current collector, a second electrode in electrical communication with a second current collector and a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.
1. A composition for use in the formation of an electronic device, comprising:
a mixture of a liquid polymer precursor that is crosslinkable to form a solid polymer;
at least one component of a first electrode; and
at least one component of a second electrode, wherein the components of the first and second electrodes are selected to exert a repelling force on each other when combined with the polymer precursor; and
wherein the first electrode has a refractive index n 1 , the second electrode has a refractive index n 3 , the liquid polymer precursor has a refractive index n 2 , and n 1 <n 2 <n 3 .
2. The composition of claim 1 , wherein the composition has a viscosity of less than about 100000 cP.
3. The composition of claim 1 , wherein the composition has a viscosity of less than about 10000 cP.
4. The composition of claim 1 , wherein the composition has a viscosity of less than about 1000 cP.
5. The composition of claim 1 , wherein the polymer precursor has a viscosity in the range of about 10 to 10000 cP.
6. The composition of claim 1 , wherein the polymer precursor has a viscosity in the range of about 10 to 1000 cP.
7. The composition of claim 1 , wherein the polymer precursor has a viscosity in the range of about 10 to 100 cP.
8. The composition of claim 1 , wherein the at least one component of the first electrode is present at a % wt. solids in the range of about 10 to 80.
9. The composition of claim 1 , wherein the at least one component of the second electrode is present at a % wt. solids in the range of about 10 to 80.
10. The composition of claim 1 , wherein the polymer precursor comprises a crosslinkable poly(oxymethylene), poly(ethylene oxide), poly(propylene oxide), their mixtures, or their copolymers.
11. The composition of claim 1 , wherein the polymer precursor comprises a hydroxy-terminated poly(ethylene glycol).
12. The composition of claim 1 , wherein the composition further comprises a crosslinking agent.
13. The composition of claim 12 , wherein the polymer precursor is crosslinkable with polyisocyanates, polyphenolics, melamine or melamine formaldehyde condensates.
14. The composition of claim 1 , wherein the polymer precursor is vinyl terminated.
15. The composition of claim 1 , wherein the polymer electrolyte precursor is crosslinkable upon application of heat.
16. The composition of claim 1 , wherein the polymer precursor is crosslinkable upon application of visible or uv energy, x-ray, e-beam or gamma ray.