Nickel Hydride No. 5.A brief analysis of the three major battery technologies in the new energy wave

　　From the current point of view, the development of China's batteries has entered the fast lane, mainly due to the rectification of the lead-acid battery industry and the country's active promotion of new energy initiatives, which has led to the emergence of new batteries and the rise of a "new energy battery boom."

　　high temperature battery

　　The backup power supply currently widely used in communication base stations and IDC computer rooms is ordinary lead-acid valve-regulated sealed batteries. The optimal operating temperature is 20℃-25℃. It is very sensitive to high-temperature use environments. That is, if it is used in an environment above 25℃ for a long time, the temperature Battery life will be reduced by half for every 10°C increase. Therefore, most base stations and IDC computer rooms need to be equipped with air conditioners, which consume large amounts of energy. Increasing the operating temperature of the battery can not only greatly improve the reliability and safety of the backup battery of the communication base station, but also greatly reduce the energy consumption of air conditioning caused by battery cooling, and promote energy conservation and emission reduction in my country's communication industry.

　　lithium battery

　　In the field of backup power supply for communications, with the development of access networks and the miniaturization of communications cabinets, lithium-ion batteries with higher weight and volume specific energy are receiving the attention and attention of power supply workers in the communications field. Many foreign communication equipment manufacturers have launched a series of backup lithium-ion battery packs for communications, and large operators have begun to successfully apply them.

　　With the continuous development of technology and the continuous reduction of costs, new technologies will surely replace lead-acid batteries in the future. Therefore, in the future field of communication power supply, operators will accept and use lithium iron phosphate batteries on a large scale.

　　Lithium-ion batteries with higher specific energy are developing rapidly. Lithium-ion batteries using lithium iron phosphate as the cathode material have shown good float performance, safety, reliability and excellent cycle performance, and will surely become the future communication power supply. Important types of technology using batteries.

　　However, the cost of lithium-ion batteries is equivalent to 4-5 times that of lead-acid batteries, which restricts the widespread use of this product to a certain extent. Its application direction will be limited to power supplies for small-capacity communication equipment such as broadband and access networks for a period of time. Or as a mobile communication power source.

　　The fuel cell

　　Throughout the 170 years of development of fuel cells, it can be seen that fuel cells are gradually extending from special aerospace and independent power stations to electric vehicle power supplies, portable digital product power supplies, backup power supplies and other fields because of their high energy conversion efficiency. (can be as high as 50% or more), has good reliability, does not discharge pollutants, has low noise (<55dBA), can work continuously without charging, and other outstanding advantages. In addition, fuel cells can also be combined with solar energy, mains electricity, batteries and other power sources to form a flexible hybrid power supply solution. At this year's Communications Exhibition, some exhibitors also demonstrated batteries using hydrogen energy.

　　There are inevitable reasons for the emergence of new batteries. The above three new batteries have attracted widespread attention since their birth. New batteries have unparalleled performance advantages. However, new batteries will be new things, and many disadvantages have not yet been fully revealed. , for users, they should be treated with caution during the selection process.

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