Which battery is commonly used in photovoltaic power generation

Lead-acid, maintenance, battery

The biggest feature is“Maintenance-free”The lead-acid battery is very small than its electrolyte consumption, and the distilled water is not required in the service life. It also has the characteristics of high temperature resistance, high temperature, small size and small discharge. Relative, its price is also more expensive than lead-acid batteries. As for the service life, the recommended replacement cycle of the battery is maintained in normal conditions is about 3 years, which is comparable to the lead-acid battery.

Ordinary lead-acid battery

The battery is invented by French Prante in 1859, has had a history of more than 100 years. The battery is mainly composed of a tubular positive electrode plate, a negative electrode plate, an electrolyte, a partition, a battery tank, a battery cover, a pole column, a liquid cover, and the like. The main advantage is that the voltage is stable, the price is cheap; the disadvantage is that the energy is low (i.e., electrical energy stored per kilogram battery), the service life is short of usual maintenance. Old-style ordinary battery is in a general life of about 2 years, and the height of the electrolyte is required regularly and add distilled water. However, with the development of technology, the life of lead-acid batteries has become longer and the maintenance is also simpler.

Colloidal battery

The colloid lead-acid battery is an improvement in the ordinary lead-acid battery of the liquid electrolyte, and the electrolytic solution is exchanged with a colloidal electrolyte, which is improved in terms of safety, storage capacity, discharge performance, and service life. There is no free-free liquid in the inner, in the same volume, the electrolyte capacity is large, the heat capacity is large, and the heat dissipation ability is strong. It can avoid the general battery to generate thermal out-of control; the electrolyte concentration is low, the corrosion of the plate is weak; concentration is uniform, there is no electrolysis Liquide layers.

Alkaline nickel-cadmium battery

Nickel-Cadmiumbattery positive electrode active substance is mainly made of nickel, and the negative electrode active material is mainly a basic battery made of cadmium. The positive electrodes are nickel hydroxide, the negative electrode is cadmium, and the electrolyte is a potassium hydroxide solution. Its advantages are light, seismic, long-lived, often used in small electronic equipment. Nickel-cadmium batteries can be quickly charged, and the cycle life is longer, more than twice the lead-acid battery, but can reach more than 200,000, but the price is 4 to 5 times the lead-acid battery. Its initial purchase cost is high, but due to its advantages in the capacity and life of life, its long-term actual use cost is not high. But use in the use of recycling, otherwise heavy metal cadmium will pollute the environment.

When choosing a battery, understand the differences between various batteries on the process and the use, first, we must fully understand the user itself to the product needs. For example, the reserve power system capacity requirements, frequencies used, the environment, main use, service life, reliability requirements, instant discharge ratios, specifications of the rectifier, and other battery-related performance requirements. Second, it is necessary to understand the electrical energy of the battery, including product design parameters (model of battery model, appearance size, rated capacity, rated voltage, weight, weight ratio energy, volume ratio energy, design life, positive and negative plate number, positive and negative plate Thickness ratio, electrolytic solution density, polar plate type, sheet material, etc.), product electrical performance parameters, product life, installation environment, performance and price of different models, different types of product warranty, etc.  Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery