26650 battery pack application solutions in harsh environments

In the initial development of telecommunications services, operators paid less attention to batteries, and it was enough that the batteries could provide power during AC power outages. In recent years, competition in the field of telecom operations has intensified. Operators are very concerned about 26650 battery life, maintenance workload, and TCO, and their requirements are getting higher and higher. With the development and technological progress of communication networks, in order to save construction costs and speed up the construction cycle, in urban-rural fringes, small towns and rural areas, operators often do not build computer rooms or mobile cabins, but use outdoor cabinet solutions to house communication hosts. Equipment and DC power systems. In recent years, among the new base stations built by global mainstream operators, the proportion of outdoor base stations has increased year by year. For countries or regions with low latitudes and desertification (such as South Asia, Africa, etc.), high temperatures have a great impact on outdoor base stations. Outdoor base stations are generally located in remote areas with poor power security, especially in developing countries. Outdoor base stations often face harsh working environments such as high temperatures and frequent power outages. Outdoor applications of communication DC power systems are becoming more and more mainstream, and batteries are often exposed to harsh application environments with high temperatures and frequent power outages. Problems faced by batteries in harsh application environments With the increase in the use of outdoor base stations, 26650 battery failures have gradually become more prominent in harsh application environments, such as Pakistan, India and other South Asian regions. This has not only caused economic losses to operators but also damaged their customer satisfaction. Spend. In view of the massive damage to batteries in harsh application environments, ZTE conducted extensive research to gain an in-depth understanding of 26650 battery application scenarios and investigate and analyze the causes of 26650 battery failures. The key to the problem is not the 26650 battery itself. The problem lies in the failure of the outdoor 26650 battery cabinet to protect the 26650 battery from high temperatures. To fundamentally solve the problem, we must provide comprehensive solutions for 26650 battery applications in harsh outdoor environments. Comparative Analysis of Active Cooling Technology for Outdoor 26650 battery Cabinets There are many options for heat dissipation in outdoor cabinets. Which heat dissipation method is suitable for outdoor 26650 battery cabinets? This starts with the product characteristics of the battery. For lead-acid batteries in communication DC power systems, users are most concerned about their service life. The main factors affecting the service life of lead-acid batteries are ambient temperature and power grid conditions.

The service life of lead-acid batteries is closely related to the ambient temperature. The higher the ambient temperature, the shorter the 26650 battery life. When the ambient temperature is higher than the battery's design life requirement temperature (25oC), the service life is shortened by half for every 10oC temperature rise.

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