no longer just giant batteries
If you need more evidence that the energy storage more than the lithium-ion batteries, take a look at the latest research projects smart grid utility storage.
U.S. Department of Energy Tuesday announced $ 620 million stimulus plan from 32 to the network chip will work with another $ 1 billion of private capital, plus funds. A 770 million VGP-BPS9/B, VGP-BPS9/S, VGP-BPS9A, VGP-BPS9A/B, vgp-bsp13/s from government sources, in the next few years, the industry's total energy storage, given the storage technology in a real-world experience, the number of doses.
is not in the list, the compression energy storage batteries and air circulation outstanding, two technologies are rarely discussed in a few years. In addition, combinations of flights and the use of battery energy storage in a distributed community.
It is unlikely that all funded by the U.S. Department of Energy projects will be immediately having been said. However, the store has clearly become a vision of the smart key factor in the network. Many start-up companies are developing the technology, they hope to make a pumped storage hydropower station, or damage to specific requirements, taking into account cheaper form of storage tools. In cooperation with the water pump, water pump up and released during peak hours to run a generator. But its use of geographical limitations.
16 grants authority to a number of wind energy storage, which is a variable source of energy storage of key sectors. In California, for example, utilities Pacific Gas and Electric Company plans to wind turbines store the energy generated at night when the wind turbine is the most productive underground caverns. During the day, when the increased demand for the grid, air release and transmission of electricity through a turbine.
In the compressed air in underground storage has the advantage that it can be inexpensive battery that can store multiple hours of energy value. On the PG & E's summary of Kern County, California, the project resulted in 10 hours 300 megawatts of electricity, enough to power tens of thousands of thousands of houses.
Another new technology uses compressed air storage, technology developed by a rotating, over Dartmouth College SustainX metal cans. The release of compressed air towholesale electronics run a hydraulic motor drives for electric power generators.
Flow batteries, while the use of liquid electrolyte solution tank. When the two liquids interact, there is a chemical reaction to produce electricity flow.
This approach has the advantage of a lot of storage capacity and discharge of energy relatively quickly, according to Save Electricity Association. A project will use high-quality electric power technology, so that the size of semi-trailer flow battery zinc remain at peak demand on the grid and supply a constant frequency.
Different winds
A variety of advanced technologies, energy storage applications. Beacon Power Flywheel winner, for example, can absorb and release the power of U.S. dollars, "MW to the grid, but only in 15-minute fire. However, the wheels be more careful, because they are a clean alternative to natural gas now used in order to rationalize the frequency of short-term fluctuations in the network of factories, the company said.
Large batteries, will also be further testing of the storage grid. Duke Energy plans to tap close to 20 million kilowatts of wind power supply Notrees power project in Texas, "the value of several types of batteries." Hybrid "system battery is designed for two tasks: to smooth short-term fluctuations in the network, and to provide value to the power during the day, based on the Duke Energy representative.
Utility Portland General Electric in the next two years, plans to install five batteries auto parts supplier Ener1 battery juice to provide sufficient power for about an hour 400. Substitute chemicals, including carbon battery lead Eastern Pennsylvania production will also be used.
A project will test the feasibility of vehicle batteries used to store the grid. Plug-in lithium-ion battery system of the A123 will be used for car storage projects in both the supply of 20 community battery for digital hours and 25 million kilowatts. After many years in the automotive performance of lithium-ion batteries to reduce, but there are enough storage and application of the power grid, utility management officials said.
possible trends of battery industry
1, the battery industry trends
The advancement of technology and battery for camcorder increasing demand for downstream applications, driven by the battery industry will arise in the development of three major trends:
Trend 1: the traditional lead-acid batteries, nickel-cadmium batteries in the civilian areas will be gradually replace the traditional lead-acid batteries are bulky, energy efficiency is low, and pollution is serious, its market demand is declining year after year; due to cadmium is toxic in many developed countries has proposed to prohibit the use of nickel-cadmium batteries. Conventional batteries in civilian areas will be gradually replaced.
Trend 2: Ni-MH battery and the rapid development of lithium-ion battery
Lithium-ion batteries with large capacity, long cycle life, no memory, etc., in the high-end consumer products such as electronic communication area of small and medium-power battery has made considerable progress, has become the world's first choice for consumer electronics products, the battery. Especially in mobile communicationVGP-BPS8, VGP-BPS8A, VGP-BPS8B devices (such as mobile phones), portable electronic devices (such as notebook computers) in areas such as lithium battery consumption is growing rapidly.
Compared with the lithium batteries, nickel-metal hydride batteries with a high-power technology is mature, safety and reliability, high cycle efficiency and low cost advantages. Nickel-metal hydride batteries in the field of industrial batteries, especially in the field of high-power industrial battery power is gradually occupy dominant market position.
Trend 3: solar photovoltaic cells to flourish
Solar photovoltaic cells solar energy directly into electrical energy, with environmental protection, resource endless and so on. In particular, the use of solar photovoltaic power generation system is in vigorous period of development in the next few years, solar cell industry will maintain rapid growth.
Second, the fuel cell is the future direction of development
Fuel cells will be the following water, fire, nuclear energy after the 4th generation of internal combustion engines for power generation and alternative power plant. Fuel cells as energy use of new technologies, with efficient, clean, etc., has become the world's energy field of the development of hot spots.
Fuel cell is divided into phosphoric acid fuel cell, alkaline fuel cells, proton exchange membrane (PEM) fuel cells, solid oxide fuel cells, molten carbonate fuel cell and regenerative fuel cells, different types, different characteristics, uses are not the the same. Proton exchange membrane fuel cell represents the top battery latest progress of the fuel cell, its thermal efficiency as high as 45% ~ 65% efficient internal combustion engine than the general 20% to 30%, so the battery of such great potential in automotive applications.
Fuel cells a wide range of applications, can be used in mobile phone or home appliances, but also can be used in transportation. Including Japan, the United States, the European Union and other countries, are developing pollution-free fuel cell cars.
Fuel cell electric vehicle technology is already quite mature, and whether commercialization is the key to consumer acceptance, that is, the use of performance, life, price and fuel around the system, the need to make consumers satisfied. At present fuel cells, related materials, system components, vehicle manufacturers and fuel supply companies, are working together to solve these problems, but also need government support, incentives and subsidies, in order to gradually create the initial market.
The United States, Japan and Europe already in the government's support, with national fuel cell related industry vendors have set up Fuel Cell Partnership to carry out fuel cell electric vehicle education and promotion work. Government departments in these countries are also active in providing incentives such as subsidies and tax reduction measures, and facilitate the establishment of the initial fuel around the system. wholesale electronics My Government is the promotion of fuel cell technology is also spared no effort, hoping to accelerate the practical application to promote their products.
Suppose in 2009 China produced only 5 million electric bicycles, but as long as 1% of the new electric bike using a fuel cell, then it will become the world's largest potential in the emerging fuel cell market.
battery-powered electric vehicles
People who frequently travel on the aircraft may have found that starting this year lithium battery backup of electronic products can no longer be checked, but must carry,battery for laptop it is mainly to prevent the lithium battery short-circuit caused the fire. In fact, the lithium battery is not as unsafe as it seems the surface, it may even become the next most important vehicle power batteries.
Power battery to be research
There are a variety of new energy vehicles by category, but according to the most stringent standards, only a pure electric vehicle is the full sense of the new energy vehicles. At present, the main driving force of new sources of energy vehicles, including nickel-hydrogen batteries, fuel cells and lithium-iron batteries, lithium batteries and the iron has been the industry's recognized as a motive power in the most promising direction of development.
At present, China can produce power with the lithium iron phosphate battery manufacturers are not many, in addition to the famous BYD, there Tianjin power of God, Vientiane Group, CITIC Guoan, among others. Chinese Academy of Sciences Institute of Physics, Huang Xue-Jie told reporters: "ability to develop a more VGP-BPS8A ,VGP-BPS8B cost-effective, more reliable electric cars lithium battery is an important prerequisite for large-scale commercial ability, as lithium iron phosphate battery good security. However, iron phosphate Lithium phosphate batteries accounted for 80% of the cost of the battery, this is still not made. "
It is understood that China's major iron phosphate lithium battery energy density can reach 80Wh/kg, close to the international advanced level. National Development and Reform Commission automobile Expert Group, the China Association of Automobile Manufacturers Executive Vice President and Secretary-General Chang Shu-lin told reporters, "Our power battery development objective is to lower costs by 2020 two-thirds of the energy density more than double . "
Nanchang FRIEND Technology Co., Ltd. has launched a A-level pure electric cars, charging a mileage of 180 to 220 kilometers per hour about 90 km / hour battery life about 25 thousand kilometers. Nanchang FRIEND Operating Officer weeks LU Qing told reporters: "The price of the car about 18 million, if taking into account national and local subsidies, consumer price actually paid about 60,000 yuan. The biggest piece of the cost of car is the battery, the battery cost is about 6-70000 yuan. "
Full sail ahead of Electric Vehicles
Although the lithium iron phosphate batteries are still expensive, and other industrial problems, but the electric car industry has not remained pending, the current domestic enterprises in the electric vehicle power management, motor control, spends much ink on the field.
Nanchang FRIEND Operating Officer weeks LU Qing told reporters: "Our cars have a self-developed power management and motor control technology, now is certified through the United States, we have car exports to the U.S. cost about 10 yuan / vehicle. "
In addition, the Nanchang University in Jiangxi Province under the Innovation and Technology Development Co., Ltd. Tai Cheong has been dedicated to electric vehicles, power modules, research and industrialization, the current power management systems, motor control systems, super capacitors and other key technologies to achieve a breakthrough. Public information, Nanchang University and Jiangxi Changhe Automobile Co., Ltd. based on the Changhe Ideal II's new co-developed the model of pure electric vehicles, have complete independent intellectual property rights, has now entered the industrialization stage.
A staff member of the company told reporters, "Chang major innovation in electric vehicles, power modules, industrialization began in October of this year, now has an auto enterprises in Jiangxi wholesale electronics reached a preliminary letter of intent from the major innovation to the businesses Cheong Electric automotive power modules for the production of electric vehicles. "
However, lithium iron phosphate battery giant BYD Liu, senior director of the right of the right balance between technology and the market has a more sober understanding. He told reporters: "I personally believe that for the electric car, the business model is more important than the battery technology."
At present, the domestic operating model of pure electric cars is still not clear, a rare charging station outlets, charge the way the industry and replacement batteries for fast charging mode has its own supporters. Pure electric vehicles operating mode restricting the electric car will probably be a major bottleneck in the development.