Reduce storage costs, the key is to break the security of the energy storage battery, cycle life problems.To well-off that the breakthrough of these technologies is the premise of the energy storage to achieve industrialization, but the NB-2LH battery technology matures it may take many years, pessimistic look likely to exceed 10 years.
The Zhangbei demonstration project uses the lithium battery technology is able to represent the future direction of development of energy storage technology is still controversial.Yu-Sheng Yang, Chinese Academy of Engineering, believes that although the lithium-ion battery with high specific energy, high power, high energy conversion efficiency, long cycle life, etc., but the technology is currently higher prices, more importantly, safety is still quite poor, while most important for power system security.He, China Southern Power Grid energy storage demonstration projects lithium-ion nb-5l battery pack had to smoke 22 times.
A wide range of energy storage battery technology, according to incomplete statistics, the energy storage according to the needs of different areas of 12 kinds of different technologies.?It is understood that the the Zhangbei 20MW energy storage demonstration projects in addition to the 14-megawatt lithium-ion battery technology, the 2MW flow Casio NP-20 system, while the remaining 4MW of energy storage which battery technology, the State Grid yet conclusive?.?It is reported that the 4MW of energy storage was originally left to the sodium-sulfur battery technology in Japan, the technology accounted for more than 65 percent of the global energy storage applications projects.But, according to Yang Yusheng, sodium sulfur battery with high specific energy, conversion rate, the advantages of longer life expectancy, but not safe, the use of sodium sulfur battery technology energy storage power station in 2011 has twice the fire.
"What kind of energy storage technology is not the key." To a well-off, of Zhangbei the storage demonstration projects designed for the energy storage business to provide the future direction of high security, long-life.?The country is currently engaged in energy storage related companies.?According to Yu Zhenhua, and storage-related businesses include a variety of battery manufacturers, and control of inverter manufacturers, application solutions provider, enterprise project, the current lead-acid Casio np-30 battery manufacturers, lithium battery manufacturers, control inverter manufacturers as well as some of the key materials.manufacturers are relatively mature, in addition to other energy storage technologies there is no scale.
Due to lack of core technology research and development of raw materials, domestic battery enterprises in the processing stage.According to industry sources engaged in lithium domestic energy storage does not scale, domestic battery in the procurement of upstream raw materials can not form a bargaining power, so the battery core raw material prices are much higher than their foreign counterparts, the last only by purchasing localization accessories reduce the price of the energy storage system.
To believe that a well-off, domestic battery most of the enterprises to start from the OEM, even if the storage size increases it is difficult to really benefit.To open the lower reaches of space, enhance the bargaining power along the high safety, long life, low-cost direction to increase R & D investment, rather than build more production lines.The current global Fujifilm NP-100 battery storage industry has just begun no later than domestic enterprises at this stage intervention.
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