Separator composition, separator, and manufacturing method and use thereof

Patent metadata

Field	Value
Publication number	US-2021343484-A1
Application number	US-201917280717-A
Country	US
Kind code	A1
Filing date	Oct 10, 2019
Priority date	Dec 12, 2018
Publication date	Nov 4, 2021
Grant date	—

Abstract

Provided is a separator composition that is capable of forming a separator capable of improving the photoelectric conversion efficiency of a photoelectric conversion element such as a dye-sensitized solar cell without being subjected to firing. Prepared is a separator composition including: at least one type of non-conductor particles selected from the group consisting of polymer particles and ceramic particles; and an ionic polymer, and the ionic polymer having a proportion from 0.1 to 30 parts by weight with respect to 1 part by weight of the non-conductor particles. A membranous separator may be prepared by coating a support with the composition without sintering. The non-conductor particles may be insulating inorganic oxide particles. A photoelectric conversion layer 2 may be stacked on a conductive substrate 1 , the membranous separator 3 may be stacked on the photoelectric conversion layer to produce a laminate, and this laminate may be used to fabricate a photoelectric conversion element.

First claim

1 . A separator composition for forming a separator, the composition comprising: at least one type of non-conductor particles selected from polymer particles and ceramic particles; and an ionic polymer, and the ionic polymer having a proportion from 0.1 to 30 parts by weight with respect to 1 part by weight of the non-conductor particles.

2 . The composition according to claim 1 , wherein the non-conductor particles are inorganic oxide particles.

3 . The composition according to claim 1 , wherein the non-conductor particles comprise insulator particles, and the insulator particles has a proportion of 10% by volume or greater of the non-conductor particles.

4 . The composition according to claim 1 , wherein the non-conductor particles have an average particle size of 10 nm or greater.

5 . The composition according to claim 1 , wherein the ionic polymer is an anionic polymer.

6 . The composition according to claim 1 , wherein the ionic polymer is a strongly acidic ion exchange resin.

7 . The composition according to claim 1 , wherein the ionic polymer is an anionic polymer that has a pH of 5 or higher in an aqueous solution or a water dispersion at 25° C.

8 . The composition according to claim 1 , wherein a proportion of the ionic polymer is from 0.25 to 15 parts by weight with respect to 1 part by weight of the non-conductor particles.

9 . The composition according to claim 1 , wherein the non-conductor particles comprise non-conductor particles having a particle size of less than 100 nm and non-conductor particles having a particle size of 100 nm or greater, the ionic polymer has a pH of 6 or higher in an aqueous solution or a water dispersion at 25° C., and is a fluorine-containing resin having a sulfo group, and the ionic polymer has a proportion from 0.5 to 8 parts by weight with respect to 1 part by weight of the non-conductor particles.

10 . A separator comprising the composition recited in claim 1 .

11 . The separator according to claim 10 , wherein the separator is membranous.

12 . A method of manufacturing the separator recited in claim 10 , wherein a membranous separator is obtained by coating a support with the composition without sintering.

13 . A laminate comprising a conductive substrate, a photoelectric conversion layer stacked on the conductive substrate, and the membranous separator recited in claim 11 stacked on the photoelectric conversion layer.

14 . The laminate according to claim 13 , wherein the membranous separator has an average thickness from 0.1 to 100 μm.

15 . A photoelectric conversion element comprising the laminate recited in claim 13 .

Assignees

• Daicel Corp

Inventors

• Fukui Kazuhisa

Classifications

• H01M50/443

  Particulate material · CPC title

• H01M50/489

  Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties · CPC title

• C08K9/02

  Ingredients treated with inorganic substances · CPC title

• H01G9/2036 Primary

  comprising mixed oxides, e.g. ZnO covered TiO2 particles · CPC title

• H01G9/2059

  comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution · CPC title