Introduces the composition and characteristic of nickel metal hydride batteries

Source: 2020 - 04 - 14 when hits: the composition and characteristic of nickel metal hydride battery currently, lead-acid battery back-up power is the main mines in our country. But lead-acid battery in use process will produce waste liquid, waste gas, toxic substances such as lead, cadmium. Therefore, the use of more environmentally friendly nickel metal hydride batteries is the current development trend. Nickel metal hydride batteries in charging and discharging process to produce hydrogen and oxygen. Under the catalysis of hydrogen storage alloys, can consume a certain hydrogen and oxygen to under pressure. When the pressure is too high can also be eliminated by the relief valve, no pollution to the outside world. At the same time, low self-discharge nickel metal hydride battery, greatly increased the charge and discharge cycles. However, if the nickel metal hydride battery pack is not controlled by the monomer, will seriously damage the service life of nickel metal hydride batteries and use efficiency. Therefore, the battery management system put forward higher requirements. Nimh batteries cylindrical structure commonly used nimh batteries, battery shell for nickel plated cylinders, and makes the anode, and battery cover for the positive terminal, and with the installation of safety valve. Battery cathode active material of NiOOH ( Discharge) And Ni ( 哦) 2 ( Charging) Anode plate, active substances for H2 ( Discharge) And H2O ( Charging) Potassium hydroxide solution, the electrolyte is 30%. In mine spare battery system, the voltage of 12 v or 24 v, a series of 10 or 20. Nickel metal hydride battery has the following characteristics: the lower the outside temperature, nickel metal hydride batteries after full to maintain the higher voltage. On the contrary, the lower the voltage. The faster the temperature of the charging current, the greater the nimh batteries. After the battery is full, continue to charge, the battery voltage drops. Idle for a long time, he would consume internal power.