Lead-acid batteries with longer life
Lead-acid batteries have great vitality, and there will be new as
Scholar Yang explained than 150 years of experience with lead-acid battery that does not weaken the nickel - cadmium batteries, nickel - metal hydride batteries, lithium-ion batteries and other new batteries have built several decades, still firmly occupy the majority of shares , China Electric Bicycle produce nearly 20 million, Dell XPS M1330 battery,Dell XPS M1530 battery , Dell XPS M170 battery most of which are equipped with lead-acid batteries; world a wide range of diesel locomotives, each of which is to use a lead-acid battery, it is no coincidence. In addition to its technology is mature, inexpensive and low grid, high security and other traditional unique merits, and it has evolved in recent years in the competition are closely associated with many new technologies such as three-dimensional and two-three-dimensional structure of electrodes and the whole sealed tubes, and so was the new structure, the use of new lead alloy electrode, which may promote a gradual increase in specific energy and cycle life of up to 4500 times. Lead-acid "Super Battery" is also one of them the latest technology. Therefore, lead-acid batteries that are not obsolete, lead-acid batteries with new technologies.
What is a lead-acid "super batteries"? The so-called lead-acid "super batteries" Ultra Battery, it is super-capacitor in parallel with the use of lead-acid batteries (may be referred to as "out"), evolution as a "single and" double-layer capacitors will with high specific power, long life benefits of integration in the lead-acid batteries, while maintaining the "outside and" increase the power, extend battery life, while the benefits of a simplification of the circuit can improve the specific energy, and reducing overall costs. It has been great development in China's electric bicycles and electric-car start, it will have major economic and social benefits. Lead-acid "super cell" There are two key technologies, one of sulfuric acid electrolyte capacitors, high performance carbon materials, and secondly, capacitor anode of carbon and lead compound.
The combination of a number of new technology, lead-acid battery energy density can be increased to 60-80wh/kg way can be increased to 600-700W, which is close to Li-ion battery of technical indicators.
863 plan should support the technological development of lead-acid batteries
Recently announced the U.S. president, Barack Obama, to 2.4 billion dollars earmarked to support the U.S. 48 project, "the next generation of batteries and electric vehicles" production, including lead-acid battery, arranged respectively by 34.3 million U.S. dollars and 32.5 million U.S. U.S. dollars to support the two companies lead the development of "super cells" project. It is noteworthy that the plan was not mentioned by hydrogen fuel cells and batteries.
YANG Yu-Sheng Academy called it "a monk reciting sutras," can be moved to China "Buddha", no longer lead-acid batteries bias, it must be solid support for a lead-acid batteries. Scholar Yang suggested that China's 863 plan must be clear support for lead-acid "super batteries", not hesitation. To this end he proposed the government to produce 45 million yuan (equivalent to the United States, 1 / 10), support the 2.3-production - the research portfolio, and corporate matching funds of 1:1, with two years to develop lead acid "Super Battery" and the capacitor, carbon, and formed a certain scale production. This is also to solve the financial crisis, to stimulate domestic demand, one of the best features.
Lithium battery is the future direction of development, but the technology still needs to be improved
Scholar Yang that lithium is a good direction but must first resolve the security and compliance rates.
The safety of lithium has been a concern for everyone. 2009 cell phone battery exploded in China, seven times, three people died, technically speaking, mobile phone lithium batteries are relatively simple, there is no serial, parallel problems. It is assumed that the energy of lithium batteries cell phone is probably the 2wh according to international statistics, the probability of explosion is 1 / 10000000, while a bus is probably the energy of lithium batteries 200,000 WH, where the number of hours and mobile phones, according to Watts Lithium battery compared to the probability that the explosion may be 1%, it can not be ignored. Li-ion battery industry to really solve the security problems the battery, otherwise the consequences would be unthinkable. Ultimately, rather important or important to safety should the industry people aware.
The second capability of lithium batteries. Besides high-capacity lithium-ion battery technology to improve but also further enhance the authentic rate.
Pure electric vehicles of the most energy-saving emission reduction
The bottleneck is the development of electric vehicle concept, rather than just a technology. The various types of electric vehicles, the main advantage of pure electric vehicles: First, no oil, 1 million pure electric cars to replace gasoline per day 10,000 tons, the second is pollution-free, third, the total cost (purchase price + energy prices ) It may be lower than fuel cars, 4 is a simple structure, no asphalt roads and waterways, use, maintenance convenience 5 battery may be used at night cheap "Valley Electric" and the final grid line duty, both to promote the "Valley Electric" (mainly nuclear and wind power) grid, "distributed peak-shaving", but also save a lot of support for the construction of energy-storage power plant.
Apace in China should give priority to the development of a single charge can run 150-200 km pure electric cars.
In addition, a number of motive power of electric vehicles have room for development, all types of batteries to "each party can and fair competition."
Lead-acid batteries for new energy-scale energy storage has competitive advantage
China's new energy development, noted scholar Yang, the amount of lead-acid battery energy storage in connection with competitive advantage. In the new energy accumulators which the industry has completed a long life for lead-acid batteries used in electric power storage system test. System with the overall power supply system connected peaking operation. Test of power storage system, three units were the peak power 100kW, 100kW, 400kW, two and a half of continuous operation, no decrease in battery voltage, voltage difference between the increase in issues such as the system is running well. Identified lead-acid battery storage system functionality.
Meanwhile, development of new energy technologies accumulators consider the costs and life expectancy, stable performance, lead-acid batteries at low prices. China Research Institute of Chemical Defense Military Chemical Power Research and Development Center has studied the military battery decade, has accumulated a battery needs proof, the overall research, technology development experience, emphasis on the development of large energy storage battery technology, especially recommended lead - acid batteries in use in this area.
Lead-acid battery industry should pay attention to prevention and control of lead pollution
It is a lead-acid batteries, which leads often said that there must be environmental pollution problems. In fact lead-acid battery is the highest recovery rate of all cell types, but also lead to production of large enterprises have also been strictly controlled. To effectively address the smelting of lead Dell XPS M1710 battery , Dell XPS M1730 battery ,DellXPS M2010 battery ,Dell Studio 1536 battery mining and waste battery recycling in the lead and acid contamination, as long as a serious and responsible improvement of environmental protection departments, enterprises attach importance to the implementation of environmental safeguards, the problem is not difficult to solve.
Currently lead battery industry should strive to achieve from a lead mining, battery production and recycling of old batteries fully enclosed operation, this can minimize lead contamination. Why does not pollute the environment of nuclear power concerns because the raw materials of nuclear power from uranium mining to recycling, the entire process of environmental doing very well. Lead-acid battery industry chain can learn from the experience of nuclear power production.
Two new lead-acid "super cell" in the lead-far less than the existing lead-acid batteries, longer life, but also reduce the workload for urban renewal, which is of direct benefit to the reduction of lead pollution.
Lead-acid battery manufacturing equipment to achieve localization
Finally scholar Yang talked about the location of equipment, lead-acid battery problem. He said that now is the new lead-acid batteries (eg, tubular cells) and the old battery recycling business equipment, many are using imported equipment. Expensive imported equipment, preventing large-scale popularization and application. China's battery firms imported production equipment, we must consider the location of the equipment as soon as possible. Import of equipment at home is a good opportunity, but also promoting China's battery industry technological advances opportunities. Equipment prices down, companies can use the advanced non-pollution equipment. Those who hope that China will work together to lead-acid battery industry, from exploration to the old battery recycling through the process, as early as possible to plan and promote the localization of equipment.