903242 battery pack

　　Which 903242 battery pack technology is more suitable for the energy storage market?

　　According to incomplete statistics from the Zhongguancun Energy Storage Industry Technology Alliance (CNESA) project library, as of the end of December 2018, the cumulative installed capacity of energy storage projects in operation worldwide was 180.9GW, a year-on-year increase of 3%. Among them, electrochemical energy storage The cumulative installed capacity is 6.5GW, a year-on-year increase of 121%. Among the cumulative installed capacity of electrochemical energy storage, lithium-ion batteries account for 86%, sodium-sulfur batteries account for 6%, lead-acid batteries account for 6%, flow batteries account for 1%, supercapacitors account for 0.1%, and others Batteries account for 0.5%.

　　Cumulative installed capacity distribution of electrochemical energy storage projects in operation around the world

　　Data source: CNESA project database, 2019

　　Compared with power batteries, energy storage applications place more emphasis on the "high safety, long life, and low cost" of batteries. So in the future, which 903242 battery pack technology is more suitable for the energy storage market?

　　Lead acid 903242 battery pack

　　The development of lead-acid batteries has a history of more than 160 years. Because lead-acid batteries have the characteristics of mature technology, wide application range, high efficiency, and many cycles, lead-acid batteries have become an important form of energy storage for peak and frequency regulation on the power generation side and peak shaving and valley filling on the user side.

　　With the advancement of technology, the performance of traditional lead-acid batteries is also constantly improving. At present, lead-carbon batteries have gradually replaced traditional lead-acid batteries and become the main force in the lead-acid 903242 battery pack energy storage market. However, compared with lithium-ion batteries, lead-carbon batteries have a short cycle life and low energy density. In terms of overall performance, lead-carbon batteries are not yet qualified for high-demand energy storage projects.

　　Lithium Ion 903242 battery pack

　　Lithium-ion batteries have occupied a leading position in electrochemical energy storage installations in the energy storage market in recent years due to their high energy density, long service life, and wide applicable temperature range. According to statistics, lithium-ion batteries almost dominated the world's newly installed electrochemical energy storage capacity in 2018, accounting for 94%.

　　However, lithium-ion batteries also have some natural disadvantages when used for energy storage. The first is the cost issue. The cost mentioned here is not the 903242 battery pack manufacturing cost, but the cost of electricity after operation. Although the cost of lithium-ion batteries is declining, if operation and maintenance are too frequent, especially in colder or hotter environments, separate air conditioning is required, etc., which will increase the cost of electricity.

　　Second is the safety of lithium-ion batteries. After all, most energy storage systems are in the MW level, and once safety problems occur, they will have a negative impact. Therefore, the mainstream ternary lithium-ion batteries used in electric vehicles are not suitable for energy storage systems. More companies choose relatively safe lithium iron phosphate batteries. Even so, it is necessary to improve the ability to prevent safety risks in BMS and other aspects in order to control the safety of the energy storage system.

　　As the cost of lithium-ion batteries continues to decline and energy storage application scenarios gradually mature, the domestic and foreign lithium 903242 battery pack energy storage markets are increasing rapidly, and lithium-ion 903242 battery pack technology innovation is more dynamic than ever before. In the foreseeable future, the large size and high competitiveness of the lithium-ion 903242 battery pack industry will surely rapidly improve product performance and reduce system costs. Some problems faced by energy storage, such as safety issues, will gradually be resolved with the development of the lithium 903242 battery pack industry. solve.

　　Huang Shilin, vice chairman of CATL New Energy Technology Co., Ltd., once said that CATL will launch a long cycle life lithium iron phosphate 903242 battery pack with a service life of more than 15 years and a single cell cycle of more than 15,000 times. This kind of 903242 battery pack has strong environmental adaptability and can well meet the requirements of energy storage working conditions. When this long-life lithium iron phosphate 903242 battery pack is launched, it will be the most suitable lithium-ion 903242 battery pack technology route for the energy storage market.

　　sodium ion 903242 battery pack

　　It is understood that research on sodium-ion batteries began around the 1980s. Due to the unsatisfactory electrochemical properties of the electrode materials designed at that time, the development of sodium-ion batteries was slow. Since 2010, based on the characteristics of sodium-ion batteries, researchers have developed a series of positive and negative electrode materials, which have demonstrated the high specific capacity and cycle stability of sodium-ion batteries, making sodium-ion batteries very promising in terms of capacity and cycle life. Big improvement.

　　Sodium-nickel 903242 battery pack is a type of sodium-ion 903242 battery pack. There are reports that sodium-nickel batteries have the characteristics of high reliability, high safety, and long cycle life. Compared with lithium-ion batteries, sodium-nickel batteries have extremely high safety and are non-flammable and non-explosive batteries. Moreover, sodium-nickel batteries can adapt to a wide temperature range, and can maintain their performance no matter whether it is minus 40 degrees Celsius or above zero 65 degrees Celsius. Stable product performance. Not only are they highly safe and have a long cycle life, but the amount of sodium stored on the earth is much higher than that of lithium, making sodium-nickel batteries much less expensive than lithium-ion batteries. Industry experts have predicted earlier that sodium-nickel batteries will shine in the energy storage field in the future.

　　In April 2019, the first phase of the sodium-nickel 903242 battery pack project, which has been under construction for nearly two years, was officially put into production by Zhejiang Anli Energy Co., Ltd., a joint venture between Chaowei Group and the American company GE. According to reports, the specific energy of the 903242 battery pack cell reaches 135Wh/kg, and the lifespan is 2 to 5 times that of lithium batteries. After forming a system, the volume is more than 50% smaller than that of lithium 903242 battery pack systems, and the life cycle cost is 50% lower than that of lithium batteries.

　　solid state 903242 battery pack

　　Solid-state batteries are batteries that use solid electrodes and solid electrolytes. They have high energy density, good safety performance, long cycle life, and a wide operating temperature range. Solid-state batteries are one of the important development directions of future 903242 battery pack technology. From the perspective of various performances, solid-state batteries are very suitable for application in the field of energy storage. However, the main factors currently hindering the deployment of solid-state batteries in the field of energy storage are technology and cost.

　　In April this year, Narada Power and Huineng Technology Co., Ltd. signed a preliminary licensing agreement in Hangzhou. The two parties reached a preliminary consensus on solid-state lithium 903242 battery pack production technology licensing cooperation and are expected to start operations after signing a formal cooperation agreement at the end of this year. Narada Power has actively deployed in the field of solid-state batteries and plans to build China's first 1GWh-scale solid-state 903242 battery pack production line after successful technical verification. In the future, solid-state batteries will be highly anticipated in the energy storage market. I wonder if Narada Power can overcome the price difficulty through technology research and development and inject new force into the future energy storage market.

　　Aqueous ion 903242 battery pack

　　Aqueous ion batteries are based on metal ion batteries and replace the flammable and high-cost organic electrolyte with a safer and easier-to-prepare aqueous electrolyte. Since the first aqueous lithium-ion 903242 battery pack was reported in 1994, the pace of promoting the development and industrialization of aqueous ion batteries has never stopped. Aqueous electrolytes have the following advantages: good safety performance, high ionic conductivity, low price and easy availability. Batteries can be produced, assembled, sealed and other operations do not require an anhydrous and oxygen-free environment, which greatly reduces 903242 battery pack production. and technology costs.

　　The aqueous sodium-ion 903242 battery pack developed and produced by Enli Energy avoids the flammability problem of the organic electrolyte of lithium-ion batteries, overcomes the shortcomings of high pollution and short life of traditional aqueous batteries, and can meet the needs of large-scale energy storage systems with safety, long life and low cost. cost, environmental protection and other requirements, thus providing a cheap and clean new system for large-scale energy storage.

　　Although aqueous electrolytes have great prospects for application in sodium-ion batteries. However, aqueous sodium-ion batteries also have shortcomings, such as a narrow electrochemical window. The thermodynamic electrochemical window of water is only 1.23V. In order to avoid the electrolysis reaction of water, the voltage of aqueous sodium-ion batteries is around 1.5V and no more than 2V. Many sodium salt compounds have high solubility in water, and some even decompose in water, further limiting the choice of sodium materials. From a current technology perspective, aqueous sodium-ion batteries are still niche. In addition, new ion batteries such as aqueous Li, K, Zn, Mg, Ca, and Al are also in the development stage, and it still takes time to reach the industrialization stage.

　　Various 903242 battery pack technologies in the energy storage market are ultimately inseparable from the word safety. In 2018, fire accidents in energy storage power stations at home and abroad, as well as many recent fire accidents in new energy vehicles, made all relevant parties in the industry chain realize the importance of safety, and the safety performance of energy storage batteries has also been raised to a new level. . High safety, long life, and low cost are the ideal systems for energy storage batteries. In the future, multiple technologies will develop together in the energy storage market. Which one is the future? We'll see.

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