source:other news
release time:2023-08-11
Hits:0
Popular:
A fuel cell is composed of an anode, cathode, electrolyte, and separator. The fuel undergoes anodic oxidation, while the oxidant undergoes cathodic reduction. If gaseous fuel (hydrogen) is continuously supplied at the anode (i.e. the negative electrode of the external circuit, also known as the fuel electrode), and oxygen (or air) is continuously supplied at the cathode (i.e. the positive electrode of the external circuit, also known as the air electrode), electrochemical reactions can occur continuously at the electrode and generate current. It can be seen that fuel cells are different from conventional batteries in that their fuel and oxidants are not stored inside the battery, but in storage tanks outside the battery. When it works (outputting current and doing work), it needs to continuously inject fuel and oxidant into the battery and simultaneously discharge reaction products. Therefore, in terms of working mode, it is similar to the conventional gasoline or Diesel generator. Due to the continuous feeding of fuel and oxidant into the fuel cell during operation, both the fuel and oxidant used in the fuel cell are fluids (gas or liquid). The most commonly used fuels are pure hydrogen, various hydrogen rich gases (such as reforming gas), and certain liquids (such as methanol aqueous solution). The commonly used oxidants are pure oxygen, purified air, and certain liquids (such as hydrogen peroxide and nitric acid aqueous solution).
The function of the fuel cell anode is to provide a common interface between the fuel and electrolyte, and to catalyze the oxidation of the fuel. At the same time, it transfers the electrons generated in the reaction to the external circuit or first to the collector plate and then to the external circuit. The function of the cathode (oxygen electrode) is to provide a common interface between oxygen and electrolyte, catalyzing the reduction of oxygen and transmitting electrons from the external circuit to the reaction site of the oxygen electrode. Due to the fact that most of the reactions occurring on the electrode are multiphase interface reactions, in order to improve the reaction rate, the electrode is generally made of porous materials and coated with electrocatalysts.
Read recommendations:
High Discharge 18650 Battery Cell 2500mAh 12C 30A
What is the Difference Between 12V, 24V, and 48V Batteries?
How much do you know about lithium battery?dual purpose marine battery
Last article:Battery pack.solar powered generator for camping
Next article:Electric vehicle power battery.marine battery for trolling motor
related suggestion
lithium ion golf cart batteries Factory
2023-03-22solar powered electric generator
2023-03-20lithium deep cycle marine battery sales
2023-04-07lithium deep cycle marine battery manufacturer
2023-04-07dual purpose marine battery Processing
2023-04-07solar battery for house manufacture
2023-03-20lithium batteries for solar panels
2023-05-08lifepo4 solar battery
2023-05-08solar battery storage system
2023-05-08deep cycle marine battery
2023-05-08lithium golf cart batteries
2023-05-08solar system for home
2023-05-0812V Rechargeable Lithium Ion 18650 Battery Pack 2000mAh
2023-02-14-40 Degree Low Temperature Resistance Lithium Ion Battery 18650 Cell
2025-04-11Customizable LiFePo4 Battery for AGV Robot 60V 72V
2023-02-09Home Appliance 3.7V Lithium Polymer Lipo Battery Pack
2023-02-14Sodium Ion Battery Pack 12V 100Ah SIB 2C Discharge
2024-06-27How to Choose a Home Battery Backup System?
2022-09-08How to preserve 48V lithium iron phosphate battery?
2022-11-22Understanding 7.4V 18650 Battery Packs: Industrial Applications and Performance Insights
2025-05-21What are the principles of using high-temperature batteries?best solar generator for home
2023-09-22Optimizing Power Solutions: The Versatility of 72V Lithium Batteries for Modern Applications
2025-03-17A Simple Method for State Detection of Rechargeable Lithium Ion Batteries
2022-11-10How to charge some common batteries to improve battery life?
2022-12-15What does dry battery mean
2023-02-14Lithium battery maintenance.solar generator for home
2023-07-13The Risks of Power Battery Reuse Business.5.8G Frequency microwave module
2023-08-08