lithium battery for 40 years why not fake out of market
"MIT Technology Review" (MIT Technology Review) recently published an article that today we have not used than the lithium ion battery has 40 years of history of the more excellent energy storage devices, because the development of new battery not only faces many technical challenges, but should be a lot of financial support.
Earlier this year, the U.S. Department of energy for lithium battery energy generation advanced research projects (hereinafter referred to as "ARPA-E") for Ellen Williams, (Ellen Williams) overnight boarded the major media headlines. The reason is that she was in the British "Guardian" interview, said: "we have made a major breakthrough in the field of battery." Although ARPA-E supports more than 75 energy storage research project has achieved some satisfactory results, but in the energy storage equipment for the production of small size and low cost, has been a breakthrough.
Many startups are close to the production of a set of economic, safe, compact and high energy density in one of the energy storage devices, and can protect its cost less than $100 per kilowatt hour. However, if the energy storage equipment price at $100 per kWh, will inevitably lead to the galvanic effect (galvanic effect).
The galvanic corrosion effect is due to the corrosion potential difference, causing local corrosion of dissimilar metals in contact with a medium. To overcome this problem, we need to use the energy. Although solar and wind energy, these renewable sources of energy, make the electric car lighter and less cost, it is only possible when the sun shines or the wind is raging.
However, the commercialization rate of this new type of battery can not keep up with the current transfer speed from fossil fuels to renewable energy sources. Even if the confidence of these new energy technologies Tesla CEO eilon - musk (Elon Musk) also have to admit that the current car manufacturers in the improvement of the lithium battery has not made much progress.
In fact, many researchers believe that the energy storage should be substantial progress, it is necessary to adopt a new chemical process and physical appearance. Only in this way can we surpass the achievements made in the field of consumer electronics, electric vehicles and network level storage systems in the past ten years.
In May this year, the U.S. Department of energy organized a theme for the "beyond lithium-ion batteries" seminar. In fact, this is already the ninth session, to discuss the development of new energy storage equipment and technical challenges faced by.
Separated from the Massachusetts Institute of Technology's SolidEnergy Systems founder Hu Qichao (transliteration, Qichao Hu) have developed a new type of lithium metal batteries. This new type of battery significantly improves the energy density of the battery device, far more than the current energy density of the battery.
He said: in up to ten years of new battery system research and development process, the main obstacle is: how to change an idea into a product. It is more difficult for the battery, because you improve the performance of a certain aspect, it may affect the performance of other aspects. Therefore, it is necessary to make a trade-off."
In addition, energy storage research also faces multiple (multiplicity) problem: there are a lot of battery technology, from the foam cell to the fluid cell, and then to the chemical battery. In these battery technologies, there is still no clear winner. This leads to the dispersion and uncertainty of the study.
Research firm Lux Research data show that in the past 8 years, the next generation of new battery start-up companies on average only received $40 million in financial support. In contrast, Tesla will invest about $5 billion in the production of lithium ion battery Giga plant. The huge investment gap is hard to overcome.
University of California at Berkeley professor Gold Side Materials Science (Gerd Ceder) said: "the establishment of a complete small production line needs about $500 million. Automobile manufacturers may have to test a new battery system for several years before they make a purchase decision. So, if your company can only get $5 million a year, you can hardly invest 500 million dollars to build a new battery."
Even if the new battery manufacturers will eventually be able to put this new technology to the market, the next will also face the problem of expanding production and looking for buyers. Before the Leyden Energy and A123 Systems is so, although there is a new technology, but due to lack of funds, the demand has not reached the expected failure. There are two start-up companies Seeo and Sakti3, before the production of low-cost acquisition of.
At the same time, the world's three major battery manufacturers Samsung, LG and Samsung have also adjusted the strategy, the investment interest in the new technology battery is becoming more and more weak, but tend to improve their current products. In addition, these new battery start-up companies are also facing a problem they do not want to mention: in 1970s the development of lithium-ion batteries have been continuously improved.
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