Solar light and heat combined to form new ideas

Recently, American researchers are jointly developing solar multi-level cell hybrid solar thermal, solar photovoltaic VGP-BPS9A/B VGP-BPS9/S cells, and the combination of thermoelectric materials used to absorb light and heat are two different forms of solar energy. Meanwhile, the U. S. Department of Energy is also expected that solar cells made of tiles, replacement of tiles now widely used in wood, to help the environment. To achieve this goal, the Department of Energy to the United Engineering Corporation Weidlinger allocated 150 thousand U.S. dollars of funds to help for the first phase of research and development.

Currently working with Columbia University in New York. Researchers hope that the roof solar panels solar thermal hybrid solar conversion efficiency can reach 12% even if efficiency is not high, but given the low cost, is still attractive. Currently, the models produced: In the solar panels in the outer layer of protection are solar photovoltaic cells, followed by the researchers called “sandwich functional extensions and the plastic tube composed of thermoelectric materials. In - head of plastic pipe in cold water cooling panels to play the role of output in heating hot water for people to use. In the plastic tube below the bottom plate of the RN873 Y6142 battery: stories reinforced plastic. solar photovoltaic cells to solar electromagnetic radiation into electricity, while the thermal layer is the solar thermal energy converted into electricity. Researchers have presented, plastic pipe “feature upgrades sandwich in all Hybrid Solar panels plays an important role, especially in summer, the temperature of the solar battery is too high, the conversion efficiency is low, plastic pipe cooling device time role will be very obvious.

Currently, other than the laboratory at Columbia University, have been tested, the battery will be in New York, Douglas College (FDA) of a roof area of 6.4 square meters of construction on the subject tests. The researchers also calculated the cost of technology to produce electricity, which is determined that a new A1078 A1175 energy technology can compete with fossil fuels, the most elementary norms.

This is the first phase of the experiment. If the success of this phase, researchers will be 6 months after the second stage: one million dollars from the Department of Energy to obtain funds in one year, the technology has been further improved. After the third phase is likely to cost 10 million U.S. dollars for technology, commercial production. Some studies presented, and they wanted to end within five years, the technology to market.

U. S. Department of Energy said they were very supportive of this plan. Solar cell has not been able to penetrate the market, mainly due to the high initial cost, conversion efficiency is low, but the hybrid solar thermal rooftop solar panels are part of the surface of the building and efficiency has been improved. At the same time, these low-cost, durable panels is extremely suitable for installation in residential and commercial common, the vast range of uses and broad prospects. F4809A F4812A

A variety of battery charging method

Lead-acid battery charging method

1. Lead-acid battery charging method and the method of Li-ion battery, as it is: pre-loading, load current constant voltage constant monitoring of temperature, floating charge (maintenance)

2. Pre-Charge: If the single cell voltages lower than the set value of voltage, load in the pre-charge cycle, the first time, the general configuration of single-cell is less than 1.65 V, both below the voltage entered on the pre-loading time.

3. Current load constant: as a single-cell voltage exceeds the set value of voltage, the charge cycle in the constant load current with the most current to recharge theVGP-BPS9A/B VGP-BPS9/S  battery. The general tension setting of this unicellular 1.65-2.47V

4. Constant Charge: When the battery in the process of charging, the battery voltage reaches the set value, the charge cycle, in constant tension. In the constant voltage, constant voltage and current gradually reduced from the maximum when the current is reduced to set value, the battery is full. Generally set at 200 mA, 400 mA current.

5. Temperature control: In the whole process of charging an external thermistor to accurately determine the temperature of the battery on the battery to achieve real time, to avoid the battery temperature is too high or too low, causing the battery damage or danger.

6. Floating Chong Chongdian (maintenance): Lead-acid battery is fully charged, the battery charge cycle in floating, floating Chong Chongdian cycle is to keep the battery as no self-discharge to keep the battery in the completeness. Chong Chongdian state floating cells are not afraid of a long charge to ensure that there is no worse off after the F4809A F4812A battery power pack.

7. The three-step method of loading on the market as follows: pre-load, load at constant current, constant voltage.

8. Lead acid are generally rated voltage: 6V, 12V, 24V, 36V, 48V, grid cell for each single nominal voltage of 2.0 V.

9. Lead-acid battery charging voltage equal to: 7.4V, 14.8V, 29.6V, 44.4V, 59.2V.

10. Lead acid battery voltage float match: 6.9V, 13.8V, 27.6V, 41.1V, 55.2V.

Lithium battery charging method

1. Li ion as long as the charging method is as follows: pre-load, load at constant current, constant voltage, the temperature monitoring.

2. Pre-Charge: If the single cell voltage lower than the set value of voltage, load in the pre-charge cycle, the first time, the general configuration of single-cell is less than 3.0V, as long as less than tension between the pre-charge time.

3. Current load constant: as a single-cell voltage exceeds the set value of voltage, the charge cycle in the constant load current with the most current to recharge the PA3383U-1BRS PA3395U-1BRS battery. The general framework of the tension of a single cell of 3.0-4.2V.

4. Constant Charge: When the battery in the process of charging, the battery voltage reaches the set value, the charge cycle, in constant tension. In the constant voltage, constant voltage and current gradually reduced from the maximum when the current is reduced to set value, the battery is full. General 50mA current range.

5. Temperature control: In the whole process of charging an external thermistor to accurately determine the temperature of the battery on the battery to track in real time to prevent the battery temperature is too high or too low causing damage to the battery or the occurrence of risk.

6.li monomer ion is generally rated voltage: 3.6V, 3.7V

Monomer 7.li-ion charging voltage is typically: 4.23V-4.26V

Ni-Cd, Ni-MH rechargeable and processes of pricing methods:

1. Charging process: pre-charge, fast charge, top-up maintenance charge.

2. Pre-load: just start charging a low BATCL50L LCBTP03003 rate of charge, to meet certain conditions, pricing, and then transferred to load faster.

3. Quick charge: is divided into constant current load and the load pulse:

A. Constant-load current is a constant current to charge the battery;

B. Load pulse was first used a pulse of current to recharge the battery, then let the battery discharge and so on.

4. Surcharge: A quick method of charge termination, after the cessation of fast charging, the battery power is not sufficient to ensure the battery charging to 100% of electricity, but also join the increase the rates charged are usually no more than 0.3c, the additional charge process, the temperature will continue to increase when the temperature exceeds the limit, the net of the shipper in the state.

5. Charge compensation: Also known as maintenance costs, according to the battery self-discharge characteristics of the loading rate of maintenance are generally low. While connected to the battery charger and the charger connected to power in maintaining the state of charge, the shipper a charge rate will be added to the power of the 6Y270 75UYF battery, it will give the battery is fully charged state of the total. Load current is less than 0.1C, we called the trickle charge.

2012 Shanghai lithium batteries Auto to realize industrialization

2012, Shanghai will have an annual production of 100 million Li-ion VGP-BPS9A battery when the power and 6 million sets of the battery capacity of the system. Recently, projects in key high-tech industrialization of Shanghai, the new lithium energy auto project-Ion Battery “Investment signing ceremony took place in the urban area of Shanghai, the Shanghai Aerospace Industry Corporation , Shanghai, Space Power Institute, Ningbo Shanshan Co., Ltd. and other shareholders of the signing of the Quartet the first 90 million yuan of investment agreements. The next year World Conference Expo, two cars lithium - ion hybrid and fuel cells, will serve as VIP cars first.

Space technology for new energy vehicles

Shanghai Institute of Space Power Hua Jiang, deputy chief engineer of the introduction, the Institute started in 1998 dedicated to space-use lithium-ion VGP-BPS10 battery development and management of electrical systems. In 2008, technology in China for the first time successfully applied in the “Shenzhou VII” companion flight. In 2005, they began to cars lithium-ion battery and systems management technology research Power, in cooperation with relevant universities and companies working together to build dual-use high-power lithium-ion battery platform development system.

“Although the satellite and automotive lithium-ion battery is not one thing, but the technology is not geography.” Jiang Hua introduced with the flight of small satellites, the average life of three years, around the Earth 10 times a day, a total of more than ten thousand to go through second charge and discharge process, during which the state must guarantee the stability of the battery safety. Energy demand for batteries satellite car that big, but the energy density is not as good as satellite. A small satellite technology of the battery to do support, car batteries, a lot of problems over time. Shanghai Aerospace sector has recently concluded a strategic agreement with SAIC, in 2012 vehicles lithium-ion BATCL50L batteries will be able to industrialization. In August this year, has developed a prototype.

Advantages of auto insurance rates

It is reported that the newly developed lithium-ion batteries, the weight and size is a nickel-hydride batteries, metal 1 / 3 of life up to 10 years, weight solve vehicles and fuel cell issues of life. Heritage has always been the safety of style, space technology, lithium car battery technology ion monitoring safe and reliable control system monitors the battery throughout the charging process and discharge to ensure that sufficient, however, but released. Control of conduct also shows the battery power, including energy, temperature, operation status, etc. to solve energy problems for new vehicle VGP-BPS9A/B battery safety.

The current lithium-ion battery car more suitable for urban driving. Jiang Xin-hua introduction of pure lithium-ion battery car has not yet reached the fuel flow of cars, more than 300 volts on a single charge can run 160 kilometers, the fastest 120 km / h, suitable for car urban. However, lithium-ion battery car fuel less expensive than energy consumption. Jiang Xin-Hua worked on an account, the charge to open 18 units of electricity can be 160 km, 100 km takes about 10 units of electricity during the night would probably only cost 3 yuan more than money, cars and fuel as well as 100 km, is estimated to spend more than 70 yuan Qian, lithium-ion battery of the automotive market space should not be overlooked.

With lithium-ion battery market car with a number of urban areas also need a dedicated vehicle charging stations. Currently, the type of car pricing method, there are two slow-filling may be ordinary housekeeping power, full of can be used 6 to 8 hours fast charge to the dedicated fast charging stations need 10 minutes filled with half the power, then industrialization also requires a fast-charging stations to improve the subsidy system. In the parking lot with a group of specialized care facilities for new energy vehicles to provide greater convenience.