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In addition to the flat-plate battery shape like other fuel cells, a cylindrical type has been developed to avoid stress concentration.

The reaction formula of sofc is as follows:

燃料极：h2o2h2o2e7

Air pole: 12o22eo28

All: h212o2h2o9

At the fuel electrode, h2 moves through the electrolyte and reacts with o2 to generate h2o and e.

The air pole generates o2 from o2 and e.

Like other fuel cells, it generates h2o from h2 and o2.

In SOFC, because it is a high-temperature working type, the main component of natural gas, ch4, can be directly modified internally into h2 for utilization without the action of other catalysts, and the main component of coal gas, co, can be directly used as fuel.

It seems that the fuel cell is very good, better than anything else, but its main components are the electrode electrode and the electrolyte separator electrolytemem.

ane and collector cu

entllector.

The electrode of the fuel cell is the electrochemical reaction site where the oxidation reaction of the fuel occurs and the reduction reaction of the oxidant occurs. The key to its performance lies in the performance of the catalyst, the material of the electrode, and the manufacturing process of the electrode.

The electrode can be mainly divided into two parts, one is the anode and the other is the cathode. The thickness is generally 200-500mm.

Its structure is different from the flat electrode of ordinary batteries in that the electrode of the fuel cell has a porous structure. The main reason for designing the porous structure is that the fuel and oxidant used in the fuel cell are mostly gases such as oxygen, hydrogen, etc.

However, the solubility of gas in the electrolyte is not high. In order to increase the actual operating current density of the fuel cell and reduce polarization, electrodes with a porous structure were developed to increase the electrode surface area participating in the reaction. This was also the original reason for the fuel cell. One of the important key reasons for moving from the theoretical research stage to the practical stage.

At present, the electrodes of high-temperature fuel cells are mainly made of catalyst materials, such as y2o3-stabilized-zro2 (ysz) for solid oxide fuel cells, abbreviated as sofc, and nickel oxide electrodes for molten carbonate fuel cells, abbreviated as mcfc.

Low-temperature fuel cells are mainly composed of a gas diffusion layer supporting a thin layer of catalyst material, such as platinum electrodes for phosphoric acid fuel cells (pafc) and proton exchange membrane fuel cells (pemfc).

The main function of the electrolyte separator is to separate the oxidant and the reducing agent and conduct ions. Therefore, the thinner the electrolyte separator, the better. However, strength must also be taken into consideration. As far as the current technology is concerned, its general thickness is about tens to hundreds of millimeters. .

As for materials, there are currently two main development directions. One is to first make a porous separator from insulating materials such as asbestos asbestos film, silicon carbide sic film, lithium aluminate lialo3 film, etc., and then immerse it in molten lithium-potassium carbonate, hydroxide Among them, potassium and phosphoric acid are used to adhere to the membrane pores, and the other is to use perfluorosulfonic acid resin such as pemfc and ysz such as sofc.

The current collector, also known as a bipolar plate, has the functions of collecting current, separating oxidants and reducing agents, and channeling reaction gases. The performance of the current collector mainly depends on its material properties, flow field design and processing technology.

Obviously, fuel cell technology is difficult to realize at present. The hunters have to turn their perspective to the next one. While the hunters are "fishing in a daze", Zhou Wenwen is directing the soldiers to cast copper. Earthen accelerators are installed on conductive pipes.

After the copper-cast conductive pipes were installed and fixed on the wooden boards with iron nails, what appeared in front of them was an annular pipe orbital electron particle confinement emitter carried by a wooden cart.

In order to conduct electricity, many parts including the pipes are made of silver, copper, and gold. After being cast, they are then modified by the Transformer Porcupine.

Only the load-resistant section around the core peripheral electronic balance device area is made of a new steel alloy made of steel, nickel, and manganese elements.

Of course, the strength-to-tensile strength of the new steel alloy is not as good as Earth's strong marine steel, but there is no way. This is the best steel that Zhou Wenwen can currently get.

Zhou Wenwen installed the Secret Source Stone into a "cage" made of obsidian in the center of the annular pipe, and then pulled hundreds of silver, copper, and gold wires into the cage, and used strong tin to Fight with the secret source stones one by one.

After all this was done, it was already evening and the night sky was full of stars. Zhou Wenwen glanced at the hunter who was still in a daze, sighed and asked everyone to take the hunter to Beijun. In short, the further away from the Fargo mines, the better.

Otherwise, the huge consequences of the failure of the experiment would be that all objects within a radius of 15 kilometers would be exposed to high-radiation rays, and if everyone was exposed to them, Zhou Wenwen's efforts would be in vain.

Note, if anyone has a high-definition world map of Azeroth, the author searched for a long time and couldn't find it, so he gave up. If anyone has it, please leave a message.

......

At this time, the hunter was still wondering whether it was a chemical battery or a thermoelectric battery.

A chemical battery in the language of hunters refers to a device that converts chemical energy into electrical energy.

Its main parts include an electrolyte solution and two positive and negative electrodes immersed in the solution.

When in use, the wire is connected to the two electrodes, and current flows through the discharge, thus obtaining electrical energy.

After being discharged to a certain level, the electric energy weakens. Some can be recharged and reused, which are called batteries, such as lead-acid batteries, iron-nickel batteries, etc. Some cannot be recharged and are called primary batteries, such as dry batteries and tanner batteries. Batteries, fuel cells, etc.

The primary battery uses the difference in metallicity between the two electrodes to generate a potential difference, thereby causing the flow of electrons and generating current. It is also called a non-storage battery and is a type of electrochemical battery. The electrochemical reaction cannot be reversed, that is, it can only be The conversion of chemical energy into electrical energy simply means that the electricity cannot be stored again, as opposed to a battery.

Chemical batteries can be divided according to their working properties: primary batteries; secondary batteries, rechargeable batteries; lead-acid batteries; and fuel cells.

Among them: primary batteries can be divided into: paste zinc-manganese batteries, cardboard zinc-manganese batteries, alkaline zinc-manganese batteries, button-type zinc-silver batteries, button-type lithium-manganese batteries, button-type zinc-manganese batteries, zinc-air batteries, primary lithium-manganese batteries Batteries etc.

Secondary batteries can be divided into: cadmium-nickel batteries, nickel-hydrogen batteries, lithium-ion batteries, secondary alkaline zinc-manganese batteries, etc.

Lead-acid batteries can be divided into: open lead-acid batteries, fully sealed lead-acid batteries, etc.

A thermoelectric battery is a device that uses temperature differences to directly convert thermal energy into electrical energy.

However, the materials of thermoelectric batteries generally include metals and semiconductors. Batteries made of metal have a smaller Seebeck effect, so they are often used to measure temperature, radiation intensity, etc.

This kind of battery generally connects several thermocouples in series, exposes one end to a heat source, and fixes the other contact in a specific temperature environment. The electromotive force generated in this way is equal to the sum of each thermocouple, and then converted into temperature based on the measured electromotive force. or intensity.

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