Ordinary lead-acid energy storage is applicable to standby power supply. The lead-acid energy storage technology is mature, and the cost is the lowest among all chemical energy storage, but there are self discharge, no deep discharge, heavy metal pollution, and it can only operate in shallow charging and discharging or standby conditions, and the cycle life is short (usually hundreds of times). The technical characteristics of ordinary lead-acid battery determine that its most suitable energy storage application field is communication standby power supply, etc.

Sodium sulfur and liquid flow batteries are suitable for energy type applications such as large capacity energy storage. The energy density of sodium sulfur battery is 3-5 times that of lead acid, and the working temperature is about 300 degrees. However, the technology is monopolized by NGK of Japan, which is suitable for peak shaving and frequency modulation applications in power systems. The typical power of liquid flow battery is above 10MW, which is suitable for large capacity and high power energy storage system. At present, the most mature is all vanadium liquid flow energy storage battery, which is used for peak shaving of power grid and large-scale distributed energy storage.

The lead carbon battery has good economic benefits. At present, the domestic lead carbon battery and lithium battery have respectively entered the new energy micro grid energy storage and wind and solar energy storage demonstration projects to verify the technical indicators. In the future, they are expected to become two important technical routes for the application of renewable energy energy storage. The lead carbon battery has excellent performance and is expected to be commercialized. The lead carbon battery effectively combines the lead acid battery and the supercapacitor, which not only maintains the high energy density of the battery, but also has the characteristics of the supercapacitor, such as high power, fast charging and discharging, and long cycle life. Compared with traditional lead-acid batteries, the cycle life of this product is greatly improved, the investment cost is better than lithium batteries, and the comprehensive cost of the energy storage system is greatly reduced. We expect that lead carbon batteries will be commercialized earlier than lithium batteries.

Lithium battery is suitable for on-board energy storage and power type application of power system. Lithium battery has high energy density and specific power, but its cost is high. There are problems of battery uniformity and safety. Lithium battery is applicable to mobile energy storage modes such as electric vehicles. In recent years, the application of standby power supply in power system and frequency modulation in power grid has also attracted much attention, which can replace lead-acid batteries for small and medium-sized communication base stations, and also began to be used in small household energy storage systems. With the reduction of battery cost, there is also great development potential in wind and solar energy storage in the future.

In the long run, lithium batteries still have potential for development. Lithium batteries have high energy density, high power and wide application fields. Moreover, domestic and foreign investment in research and development of lithium batteries in power and communication fields will accelerate the improvement of lithium battery performance and the reduction of cost, which are not available in other electrochemical energy storage batteries. At present, lithium batteries have partially replaced lead-acid batteries in the field of communication base stations, and become the main supporting batteries for domestic wind and solar grid connected energy storage demonstration projects, and are also widely used in household energy storage abroad.

Shenzhen Topband Battery Co., Ltd.，established in 2006, is a wholly-owned subsidiary of Shenzhen Topband Co., Ltd. (002139.SZ). We focus on lithium iron phosphate batteries,with independent research and development in cells and BMS. With the ability to integrate the entire industry chain, we are committed to providing customers with one-stop lithium battery solutions and services. Our quality products are widely used in energy storage and light power.