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This section provides an overview for ammonia fuel cells as well as their applications and principles. Also, please take a look at the list of 1 ammonia fuel cell manufacturers and their company rankings. Here are the top-ranked ammonia fuel cell companies as of April, 2026: 1.Doosan Fuel Cell Co., Ltd., 2.GenCell Ltd., 3.Siemens Energy.
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An ammonia fuel cell is a type of fuel cell that generates electricity using ammonia as the hydrogen supply source to the fuel cell.
Ammonia is an inexpensive substance that can be synthesized in large quantities, is easier to transport and store than hydrogen, and does not emit carbon dioxide when burned or decomposed.
An ammonia fuel cell is being developed as a more energy-efficient solution to the hydrogen supply problems associated with fuel cells.
Ammonia fuel cells are still in the development stage, and currently, only about 1kW units are being operated on a trial basis. However, they are expected to be used in industrial and residential power generation systems.
It is expected to be used as a power generation source due to its excellent energy efficiency and low environmental impact since it does not emit carbon dioxide or nitrogen oxides.
Like other fuel cells, ammonia fuel cells generate electromotive force by converting the chemical energy generated when hydrogen is oxidized to form water into electricity.
The basic structure of the ammonia fuel cells is similar to that of a solid oxide fuel cell, consisting of a fuel electrode, an air electrode, and a solid electrolyte made of ceramics, etc. The hydrogen oxidation reaction occurs on the fuel electrode side and the oxygen reduction reaction on the air electrode side.
Ammonia fuel cells, however, use a different hydrogen supply method. Instead of hydrogen from reformed city gas, ammonia is supplied directly to the device. Ammonia is decomposed into nitrogen and hydrogen, and since this reaction is endothermic, it proceeds spontaneously without the use of a catalyst at the operating temperature of the solid electrolyte fuel cell, 700°C or higher, to produce hydrogen.
Research is also underway to develop a polymer electrolyte fuel cell that can operate at relatively low temperatures, in which the ammonia fuel cells are pre-heated to decompose ammonia into hydrogen and nitrogen, which are then supplied to the cell.
*Including some distributors, etc.
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Doosan Fuel Cell Co., Ltd., established in 2014 and headquartered in Seoul, South Korea, specializes in manufacturing environment-friendly fuel cells with high efficiency for power generation. The company's product range includes the PureCell M400 NG, PureCell M400 Hydrogen, and PureCell M400 LPG/NG Dual. These products find applications in power generation facilities, primarily used as fuel cell mains. The company also offers long-term maintenance and repair services. It is actively involved in the design of fuel cell systems, the development of controllers, fuel pretreatment systems, and the development of stack and peripheral devices.
Ranking as of April 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Doosan Fuel Cell Co., Ltd. |
43.7%
|
| 2 | GenCell Ltd. |
29.1%
|
| 3 | Siemens Energy |
27.2%
|
Derivation Method
The ranking is calculated based on the click share within the ammonia fuel cell page as of April 2026. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Republic of Korea
|
1 | 100.0% |
