ELECTRODE ELECTROLYTE FOR USE IN SOLID POLYMER FUEL CELL

التفاصيل البيبلوغرافية
العنوان: ELECTRODE ELECTROLYTE FOR USE IN SOLID POLYMER FUEL CELL
Document Number: 20090130526
تاريخ النشر: May 21, 2009
Appl. No: 11/995701
Application Filed: June 30, 2006
مستخلص: This invention provides an electrode electrolyte for a solid polymer-type fuel cell, in which a cost problem and a problem related to recovery of catalyst metals are solved, having excellent proton conductivity, dimensional stability and heat resistance. An electrode electrolyte for a solid polymer electrolyte-type fuel cell contains a polymer, which has a polyphenylene structure as a main chain and both a sulfonic acid group and a nitrogen-containing heterocyclic group as a side chain. A side chain having the nitrogen-containing heterocyclic group has a structure represented by the following general formula (D). [chemical expression included] (In formula, Z represents at least one kind of structures selected from a group consisting of a direct bond, —O— and —S—, Y represents at least one kind of structures selected from a group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2— and R20 represents a nitrogen-containing heterocyclic group. q represents an integer of 1 to 5 and p represents an integer of 0 to 4.) The above nitrogen-containing heterocyclic group is at least one kind of group derived from a compound selected from the group consisting of nitrogen-containing heterocyclic compounds including pyrrole, thiazole, isothiazole, oxazole, isoxazole, pyridine, imidazole, imidazoline, pyrazole, 1,3,5-triazine, pyrimidine, pyridazine, pyrazine, indole, quinoline, isoquinoline, purine, benzimidazole, benzoxazole, benzothiazole, tetrazole, tetrazine, triazole, carbazole, acridine, quinoxaline and quinazoline and derivatives thereof.
Inventors: Higami, Makoto (Tokyo, JP); Rozhanskii, Igor (Tokyo, JP); Yamakawa, Yoshitaka (Tokyo, JP); Kanaoka, Nagayuki (Saitama, JP); Fukuda, Kaoru (Saitama, JP); Takahashi, Ryoichiro (Saitama, JP); Shinkai, Hiroshi (Saitama, JP)
Assignees: JSR CORPORATION (TOKYO, JP), HONDA MOTOR CO., LTD. (TOKYO, JP)
Claim: 1. An electrode electrolyte for a solid polymer-type fuel cell electrolyte, comprising a polymer with a structure having a main chain including a polyphenylene, a side chain including a sulfonic acid group and a side chain including a nitrogen-containing heterocyclic group.
Claim: 2. The electrode electrolyte for a solid polymer-type fuel cell electrolyte according to claim 1, wherein the side chain including a nitrogen-containing heterocyclic group has a structure represented by the following general formula (D): [chemical expression included] (in the formula, Z represents at least one kind of structure selected from the group consisting of a direct bond, —O— and —S—, Y represents at least one kind of structure selected from the group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2— and R20 represents a nitrogen-containing heterocyclic group, q representing an integer of 1 to 5 and p representing an integer of 0 to 4).
Claim: 3. The electrode electrolyte for a solid polymer-type fuel cell according to claim 1 or 2, wherein the nitrogen-containing heterocyclic group is at least one kind of a group derived from a compound selected from the group consisting of nitrogen-containing heterocyclic compounds including pyrrole, thiazole, isothiazole, oxazole, isoxazole, pyridine, imidazole, imidazoline, pyrazole, 1,3,5-triazine, pyrimidine, pyridazine, pyrazine, indole, quinoline, isoquinoline, purine, benzimidazole, benzoxazole, benzothiazole, tetrazole, tetrazine, triazole, carbazole, acridine, quinoxaline and quinazoline and a derivative thereof.
Claim: 4. The electrode electrolyte for a solid polymer-type fuel cell according to any of claims 1 to 3, wherein the side chain including a sulfonic acid group is represented by the following general formula (E): [chemical expression included] (in the formula, Y1 represents at least one kind of structure selected from the group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2—, Z1 represents at least one kind of structure selected from the group consisting of a direct bond, —(CH2)1— (1 is an integer of 1 to 10), —C(CH3)2—, —O— and —S— and Ar represents an aromatic group having a substituent represented by —SO3H, —O(CH2)hSO3H or —O(CF2)hSO3H, h representing an integer of 1 to 12, m representing an integer of 0 to 10, n representing an integer of 0 to 10 and k representing an integer of 1 to 4).
Claim: 5. The electrode electrolyte for a solid polymer-type fuel cell according to any of claims 1 to 4, wherein the polymer contains a repeating structural unit represented by the following general formula (C) and a repeating unit represented by the following general formula (A): [chemical expression included] (in the formula, Z represents at least one kind of structure selected from the group consisting of a direct bond, —O— and —S—, Y represents at least one kind of structure selected from the group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2— and R20 represents a nitrogen-containing heterocyclic group, q representing an integer of 1 to 5 and p representing an integer of 0 to 4), [chemical expression included] (in the formula, Y1 represents at least one kind of structure selected from the group consisting of —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —C(CF3)2—, Z1 represents at least one kind of structure selected from the group consisting of a direct bond, —(CH2)1— (1 is an integer of 1 to 10), —C(CH3)2—, —O— and —S— and Ar represents an aromatic group having substituents represented by —SO3H or —O(CH2)hSO3H or —O(CF2)hSO3H, h representing an integer of 1 to 12, m representing an integer of 0 to 10, n representing an integer of 0 to 10 and k representing an integer of 1 to 4).
Claim: 6. The electrode electrolyte for a solid polymer-type fuel cell according to any of claims 1 to 5, wherein the polymer further has a structure represented by the following general formula (B) [chemical expression included] (in the formula, A and D independently represent at least one kind of structure selected from the group consisting of a direct bond, —CO—, —SO2—, —SO—, —CONH—, —COO—, —(CF2)1— (1 is an integer of 1 to 10) and —(CH2)1— (1 is an integer of 1 to 10), —CR′2— (R′ represents aliphatic hydrocarbon, aromatic hydrocarbon or halogenated hydrocarbon groups), cyclohexylidene, fluorenylidene, —O— and —S, B is independently an oxygen or sulfur atom and R1 to R16 may be the same or different from one another and represent at least one kind of atom or group selected from the group consisting of hydrogen atom, fluorine atom, alkyl, partially or fully halogenated alkyl, allyl, aryl, nitro and nitrile, s and t representing an integer of 0 to 4 and r representing an integer of 0 or 1 or larger).
Claim: 7. An electrode paste, comprising the electrolyte according to any of claims 1 to 6, catalyst particles and a solvent.
Claim: 8. An electrode for a solid polymer-type fuel cell, comprising the electrolyte according to any of claims 1 to 6 and catalyst particles.
Claim: 9. A membrane-electrode junction, comprising a structure provided by joining the electrode according to claim 8 with at least one surface of a polymer electrolyte membrane.
Current U.S. Class: 429/33
Current International Class: 01
رقم الانضمام: edspap.20090130526
قاعدة البيانات: USPTO Patent Applications