With the continuous improvement of new energy development technology, the country is vigorously promoting the implementation of energy conservation and emission reduction, the application of solar street lamp system is more and more common, so as a core part of the system, how to choose solar street lamp battery?
Solar street lamp battery is currently on the market with the main lead-acid battery, colloidal battery, ternary lithium battery and lithium iron phosphate battery four choices.
1. Lead-acid battery: Lead-acid battery electrode is composed of lead and lead metal oxide, lithium battery electrolyte is hydrochloric acid solution. The key advantage of lead-acid battery is that the working voltage is relatively stable, the price is cheap, the safety factor is high, the disadvantage is that lead-acid battery lead-acid battery is relatively short, the capacity is much larger than the conventional battery, but because of its brand advantage, in the solar lamp manufacturing industry is still dominant.
2. Colloidal Battery: is a new lead-acid battery upgrade, no maintenance and little maintenance. The key is to replace lithium ion battery electrolyte with lithium ion battery electrolyte, and gradually improve the storage capacity, charging and discharging capacity, safety factor and service life. In addition, the whole temperature range of colloidal battery is wide, can be used in the temperature range of -40cmdashmdash65c, ultra-low temperature characteristics are good, and colloidal battery is the best choice for cold regions in the north or high tropical climate, its seismic performance is also very good, can be safely applied to a variety of extreme standards.
Ternary lithium battery: ternary lithium battery has many advantages, such as high performance, small size, fast charging and high price. Its deep circulation system frequency is about 500 ~ 800 times, the service life is similar to the colloidal battery, the application temperature range is -15c-45c. But ternary lithium ion batteries also have disadvantages, poor safety factor, if the internal battery is unstable, or just off ternary lithium ion battery manufacturers, it is likely to explode in overcharge or high temperature natural environment.以上翻译结果来自有道神经网络翻译（YNMT）· 通用场景
