Battery technology industrialization mature -Lithium - Ion Battery Equipment

Prerequisitization -maturity of battery technology -Lithium - Ion Battery Equipment

The key to reducing energy storage costs is to solve problems such as safety and cycle life of energy storage batteries. The senior engineer of the Institute of Electric and New Materials of China Institute of Electricity Sciences came to Xiaokang to pointed out that the breakthrough of these technologies is the prerequisite for industrialization of energy storage, but the maturity of battery technology may take many years, and pessimistic may be more than ten years.

Whether the lithium battery technology adopted by the Zhangbei demonstration project can represent the future development direction of energy storage technology. Yang Yusheng, an academician of the Chinese Academy of Engineering, believes that although lithium -ion batteries have the advantages of high -ratio energy, high ratio, high energy conversion efficiency, long cycle life and other advantages, the current technology is higher. Safety is most important for power systems. He introduced that the lithium -ion battery pack of the energy storage demonstration project of Southern Power Grid has smoked 22 times.

There are many types of energy storage battery technology. According to incomplete statistics, energy storage has 12 different technical routes according to different fields. It is understood that in addition to the use of 14 MW ion battery technology in the 20MW energy storage demonstration project, there is a 2MW liquid stream battery system, and which battery technology is used for the remaining 4MW energy storage. At present, the State Grid has not yet been concluded Essence It is reported that 4MW energy storage was originally left to Japan's sulfur sulfur battery technology, which accounts for more than 65%of global energy storage application projects. However, according to Yang Yusheng, although sodium sulfur batteries have the advantages of high -ratio energy, high conversion rate, and long life, they are not safe. Japan's energy storage power station using sodium sulfur battery technology has been fired twice in 2011.(Lithium - Ion Battery Equipment)

"Which energy storage technology is not the key to adopting." Lai Xiao believes that Zhang Bei's energy storage demonstration project aims to provide future development directions for energy storage enterprises, that is, high security and long life.

There are not many companies in China who are currently engaged in energy storage. According to Yu Zhenhua, companies related to energy storage include various battery manufacturers, control inverter manufacturers, application solutions providers, engineering implementation enterprises, etc. At present Manufacturers are relatively mature, and other energy storage technologies have not yet formed scale.

Due to the lack of core raw materials research and development technology, domestic battery companies are mainly in the process of processing processing. According to industry insiders engaged in lithium battery, because domestic energy storage does not form a scale, domestic battery companies cannot form bargaining capabilities when purchasing upstream raw materials. Therefore, the price of core raw materials of battery is much higher than foreign counterparts. In the end Reduce the price of the energy storage system.

Lai Xiaokang believes that most domestic battery companies start from OEM production, and it is difficult to really benefit even if the energy storage scale rises. To open downstream space and improve bargaining ability, we need to increase research and development in the direction of high security, long life, and low cost, rather than building more product production lines. The current global energy storage industry has just begun, and domestic enterprises are not involved late at this stage.



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