# US 10,483,556 B2 · Fuel cell electrode and fuel cell using the same

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- Number: US 10,483,556 B2
- Document ID: US10483556B2
- Status: Granted
- Kind: B2
- Application number: 15/798,769
- Filed: 2017-10-31
- Published: 2018-12-13
- Granted: 2019-11-19
- Earliest claimed: 2017-06-09
- Assignees: Tsinghua University; Hon Hai Precision Industry Co., Ltd.
- Applicants: Tsinghua University; Hon Hai Precision Industry Co., Ltd.
- Inventors: Hong-Ying Fu; Wen-Zhen Li
- Web page: https://patentgrep.com/patent/US10483556B2

## CPC

- H01M 4/96: Carbon-based electrodes
- H01M 4/8663: {Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers}
- H01M 4/8668: {Binders}
- H01M 4/8803: {Supports for the deposition of the catalytic active composition (H01M4/90 takes precedence)}
- H01M 4/9075: {Catalytic material supported on carriers, e.g. powder carriers (H01M4/8807, H01M4/881, H01M4/8814, H01M4/925 take precedence)}
- H01M 4/9083: {on carbon or graphite}
- H01M 8/0234: Carbonaceous material
- C01B 32/168: After-treatment
- Y02E 60/50: Fuel cells
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A fuel cell electrode, comprising: a porous metal structure; and a carbon nanotube structure comprising a plurality of carbon nanotubes, the carbon nanotube structure is fixed on a surface of the porous metal structure, wherein the porous metal structure and the carbon nanotube structure are shrunk together to form a plurality of wrinkled parts.

## Claims

### Claim 1

A fuel cell electrode, comprising:
a porous metal structure; and
a carbon nanotube structure comprising a plurality of carbon nanotubes, the carbon nanotube structure is fixed on a surface of the porous metal structure, wherein the porous metal structure and the carbon nanotube structure are shrunk together to form a plurality of wrinkled parts.

### Claim 2 (depends on 1)

The fuel cell electrode of claim 1, further comprising a material with catalytic property, wherein the material with catalytic property is located on the carbon nanotube structure.

### Claim 3 (depends on 2)

The fuel cell electrode of claim 2, wherein the material with catalytic property is nano-oxides.

### Claim 4 (depends on 1)

The fuel cell electrode of claim 1, wherein the plurality of carbon nanotubes in the carbon nanotube structure forming the plurality of wrinkled parts are extended substantially along a same direction.

### Claim 5 (depends on 1)

The fuel cell electrode of claim 1, wherein the plurality of wrinkled parts are connected to each other to form a continuous structure.

### Claim 6 (depends on 1)

The fuel cell electrode of claim 1, wherein the porous metal structure comprises a plurality of ligaments, and the plurality of ligaments define a plurality of pores.

### Claim 7 (depends on 6)

The fuel cell electrode of claim 6, wherein the ligament is a material selected from a group consisting of silver (Ag), platinum (Pt), gold (Au), and a combination thereof.

### Claim 8 (depends on 1)

The fuel cell electrode of claim 1, further comprising a bonding material, wherein the bonding material is configured to fix the carbon nanotube structure on surface of the porous metal structure.

### Claim 9 (depends on 8)

The fuel cell electrode of claim 8, wherein the bonding material is configured to envelop contacting surfaces between the carbon nanotube structure and the porous metal structure.

### Claim 10 (depends on 8)

The fuel cell electrode of claim 8, wherein the bonding material is an organic binder material or a metal material.

### Claim 11 (depends on 1)

The fuel cell electrode of claim 1, wherein the carbon nanotube structure comprises a plurality of carbon nanotubes arranged along a same direction.

### Claim 12

A fuel cell, comprising:
an anode and a cathode, at least one of the anode and the cathode comprising:
a porous metal structure; and
a carbon nanotube structure comprising a plurality of carbon nanotubes, the carbon nanotube structure is fixed on a surface of the porous metal structure, wherein the porous metal structure and the carbon nanotube structure are shrunk together to form a plurality of wrinkled parts.
a container having the anode, the cathode and electrolytes therein;
two gas paths located in two sides of the container respectively.