Salt water can also store? The 'blue battery'

Recently, Forbes released industrial manufacturing & other; Throughout 30 outstanding youth & under the age of 30; （ “ 30 30岁以下” ） List, the development of large-scale energy storage of brine storage battery & ndash; — “ Blue battery & throughout; The CenJiaJun on the list. “ Blue battery & throughout; What is? Mixed salt and water, and how to realize the energy storage? Salt water battery can be combined with the existing renewable energy? “ Blue battery & throughout; Where is the future? With these questions, the reporter interviewed the Netherlands energy company Aqua 'co-founder CenJiaJun Dr, young scientists and chemical engineering.

　　“ ‘ Blue battery & rsquo; The biggest characteristic is that it USES only the salt water, and a special ion exchange membrane, cheap raw material availability, in large-scale energy storage to guarantee the security and at the same time. ” CenJiaJun said.

　　“ Blue battery & throughout; The concept has a long history. As early as in 1954, the sea salt can poor, namely & other Blue energy & throughout; Concept is put forward by British engineers, the use of sea water and fresh water or salt concentration of different liquid two phase mixture can produce the chemical potential difference can be used to generate electricity. Previously, European researchers have done accordingly. According to the original filing & other; Blue energy & throughout; Idea is to use a mixture of the Jordan river and the Dead Sea salt water for power generation, but it was not until the 1970 s, the commercial use of artificial membrane, the idea became possible. By 2009, Norway's national electric power company ( Statkraft公司) In Norway, opened the first use of the principle of power generation & other Blue energy & throughout; Power plants, but as a result of power is too small, and eventually because of the high cost and difficult to maintain.

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in addition, will & other; Blue battery & throughout; Used as energy storage, can be stored into electrical energy, and can & other; Adjust measures to local conditions & throughout; To use, this is & other; Blue battery & throughout; The innovation of the breakthrough. According to CenJiaJun & other; Blue battery & throughout; When used for energy storage process, using two simple physics, electrodialysis and reverse electrodialysis. “ Blue battery & throughout; Is used the charging process of electrodialysis principle, the use of solar, wind and other renewable energy conversion of electrical energy, make the salt water ions through a layer of special ion exchange membrane separation, to produce a salt and a stream of water, respectively stored in two separate tank; When the brine is mixed with water, salt concentration chemical potential difference between the different liquid can produce electric current. Based on this principle, & other; Blue battery & throughout; That store renewable energy to produce electricity, and released when needed.

it is worth mentioning that with the use of rare metals, vanadium flow batteries, lithium-ion batteries and compared using the heavy metal lead lead-acid batteries, & other; Blue battery & throughout; Biggest advantage is that has the characteristic of sustainable and cost-effective. CenJiaJun points out, & other; Its energy storage medium cost is very low, especially when we will be expanded to more than 1 mw always & lsquo; Blue battery & rsquo; The leveling of the energy costs can be lower than 0. 5 euros/KWH, it is safe and environmental protection. Even if the battery fluid overflow or short circuit etc, at the time of the accident is the introduction part of salt water, & lsquo; Blue battery & rsquo; Under the condition of water temperatures rise by only about one degree Celsius. In addition, the use of standardized unit & lsquo; Blue battery & rsquo; There is no problem on the scale. ”

　　“ Energy storage market is very diverse. Small energy storage currently has a lithium-ion battery and lead acid batteries, large-scale energy storage has pumped storage power station ( PHES) And compressed air energy storage ( 压缩空气蓄能) , but the battery is not fully meet the requirements of practical application. In view of the medium energy storage market, I think & lsquo; Blue battery & rsquo; There is a chance. ” CenJiaJun said.

　　“ In the process of entrepreneurship, the first obstacle is a new concept into a product, and then find the product segments. In 2012, medium-sized fixed storage battery market does not exist, namely 1 kw 100 kw capacity and 100 KWH 10 mw energy storage capacity of the system, it was not until recent years the market segment development. ” CenJiaJun said. But as the renewable energy market rapid expansion in Europe, in order to ensure a continuous supply of renewable energy, avoid destroying the stability of power grid, many eu countries have awareness of the need for energy storage, and provides capital for the development of battery technology. “ Fortunately, when I began to study & lsquo; Blue battery & rsquo; , the renewable energy market began to flourish, I also caught up with the wave of subsidies to develop & lsquo; Blue battery & rsquo; 。 My aim is to build a production line in 2020. ”

according to introducing, Aqua 'mass demonstration pilot project, is currently building a second in the Dutch water commission have a solar park built a & other; Blue battery & throughout; System, once completed the energy storage system for 1 kw power, energy storage capacity of 35 KWH. For the Chinese market, was born in guangdong foshan CenJiaJun also expressed considerable interest. “ If the future have the opportunity, I certainly hope to me in the development of foreign technology back to China. ”