Fuel cell is a kind of power generation device that converts the chemical energy of fuel and oxidizer directly into electrical energy through electrochemical reaction. Fuel cell housing can be manufactured by CNC engraving, Sand Casting, transparent acrylic(PMMA/PC) 3D Printing.

2, the basic composition and reaction principle of phosphoric acid fuel cell is: fuel gas or city gas added water vapor is sent to the modifier, the fuel is converted into a mixture of H2, CO and water vapor, CO and water are further converted into H2 and CO2 by catalyst in the shift reactor. After such treatment, the fuel gas enters the negative electrode of the fuel reactor (fuel electrode), and at the same time, the oxygen is transported to the positive electrode of the fuel reactor (air electrode) for chemical reaction, and the catalytic agent is used to rapidly generate electricity and heat energy.
3, compared with PAFC and PEMFC, the high-temperature fuel cell MCFC and SOFC do not catalyst, with CO as the main component of coal gasification gas can be directly used as a fuel application, but also has the characteristics of easy to use its high-quality exhaust to form a combined cycle power generation.
(1) Main components of MCFC: Containing electrolytes related to electrode reactions (usually carbonates mixed with Li and K) and 2 electrode plates connected to them (fuel and air), as well as gas chambers and electrode clips circulating fuel gas and oxidizer gas outside each of the two electrodes, the electrolyte presents a molten liquid at an operating temperature of about 600~700℃ under MCFC. Forming an ionic conductor. The electroelectrode is a porous body of nickel type, and the gas chamber is formed by an corrosion-resistant metal. The working principle of MCFC: O2 (air) and CO2 in the air pole combine with electricity to form CO32- (carbonate ion), the electrolyte moves CO32- to the fuel pole side, combines with H+ as a fuel supply, releases e-, and generates H2O and CO2 at the same time. The chemical reaction is as follows:
Fuel: H2+CO32-==H2O+CO2+2e- (4)
Air pole: CO2+1/2O2+2e-==CO32- (5)
All: H2+1/2O2==H2O (6)
In this reaction, as in the case of PAFC, e- is released from the fuel pole and returned to the air pole through an external loop, where the uninterrupted flow of e- in the external loop realizes the fuel cell power generation. In addition, the biggest feature of MCFC is that there must be CO32- ions that help the reaction, so the oxidizing gas supplied must contain carbonic acid gas. In addition, a catalyst is filled inside the battery, so that CH4, which is the main component of natural gas, is modified inside the battery, and a method of directly generating H2 inside the battery has been developed. In the case of gas, its main component CO and H2O react to form H2, so CO can be used as a fuel equivalent. In order to obtain greater output, partitions are usually made of Ni and stainless steel.