Chemical battery by electrochemical reactions, refers to the positive and negative and active substances, the chemical energy into electrical energy type of device. After long-term research and development, the chemical battery ushered in a variety of applications, the situation. To a building can accommodate a huge device, small to millimeters. For our good ever-present service life. Modern electronic technology development on chemical battery, put forward the high requirements. Every chemical battery technology breakthroughs, has brought the revolutionary development of electronic equipment. In modern society, the People’s Daily life, daily chemical and leave the battery. Now the world, scientists in many electrochemical concentration of power in a chemical battery electric vehicle.
Dry and liquid battery
Dry and liquid battery to distinguish the development of early battery period. The earliest battery electrolyte by full of glass containers and two electrodes. Later introduced to paste on the basis of battery electrolyte, also known as dry.
Still have “liquid” battery. General is very huge volume of varieties. If those as uninterrupted power supply of large-scale fixed type and solar battery or supporting the use of the battery. For mobile devices, some use is sealed, maintenance of the battery, the battery has successful use of for many years, including the electrolyte sulfuric acid by silica gel is fixed or fiberglass clapboard suck.
Disposable battery and rechargeable batteries
Non-rechargeable batteries commonly known as “with the” battery, the battery because they cannot charge after use, can only be discarded. Common non-rechargeable batteries included alkali manganese manganese zinc battery, the battery, lithium batteries, zinc, zinc empty battery, the battery, the battery zinc mercury, hydrogen battery and mercury magnesium manganese batteries.
Rechargeable batteries made by different materials and techniques, common have lead-acid battery, nickel cadmium battery, nickel and iron batteries, nimh batteries, lithium ion battery. Its advantages are long life cycle, they can charge 200 times, some rechargeable batteries load power than most non-rechargeable batteries. Ordinary nickel cadmium, used nimh batteries, special memory effects caused by the use of inconvenience, often in advance, caused by failure.
The battery charging theory
The battery charging time: the theory of power by the battery charger current output.
Example: in a power for 800MAH battery charger, for example, the output current for charging time equals 500MA so 800MAH / 500MA = 1.6 hours, when completed, the best charging to battery of about half an hour or so electrical time.
Fuel cells
The fuel cell is a kind of fuel energy through electrochemical reaction directly into electricity device using hydrogen fuel cell is in the anode oxidation reaction is oxidized hydrogen, oxygen and hydrogen ions, in response to the cathode, and reduction of hydrogen ions by anodic came with formation water. REDOX reaction process can generate electricity. Fuel cell technology including the fuel cell (AFC) alkaline acid, fuel cell (PAFC), proton exchange membrane fuel cell (PEMFC), molten carbonate fuel cell (MCFC solid oxide fuel cell), (SOFC), and direct methanol fuel cell (DMFC), which, as a positive reaction using methanol oxidation reaction of fuel cell technology, which was good and positive development of industry.