Battery Blog

A pillar industry of the future economy Hercynian

Solar photovoltaic energy industry’s future pillar industry. Fujian province as photovoltaic industry to address a strategic industry, and promoting the formation of the solar energy industry chain has expanded rapidly westward economic zone, and improve, and Organizations fujian province’s development work Plan ’solar energy industry development. “May this year 29, a special meeting chaired by Governor Huang Xiaojing and development of a movement” created, strengthening and expansion of its photovoltaic industry, ” ’s instructions. August 9, Regional Economic and Trade Commission, regional development and Reforms Commission, Science and Technology Department, Information Industry Department and other co-development of PV industry sponsored forum held in Vietnam. photovoltaic projects 10 projects of the Forum held in conjunction with the successful docking and work around five industrial chain match out to investments.

Industry believes that the development of photovoltaic industry, led by high-purity silicon production, slicing, packaging and application of three – dimensional industrial division of labor, both potential benefits, and traditional industry a major breakthrough in the province sea West pillar industries will be the future of the economy.

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economy, future, Hercynian, pillar industry, Sunrise industry

Solar electric energy from light sources

Under the new economic situation created by the development of photovoltaic industry towards the mystique is slowly, show the world wide market prospect. Metallurgy Building Materials Industry Management Office of the Provincial Director Chen Bin told reporters that when silicon wafers, solar cells on its collection, while the photovoltaic industry chain complexity out of understanding the details.

To supply solar energy resources an integral electric light in high purity silicon using the photovoltaic industry directly, because its clean, green, safe, renewable and other features, and light directly into electrical energy can change, estimated , 1 kWh per 325 grams of standard coal can be saved and nitrogen compounds, dust and emissions at the very least, more and more countries and attracted attention from industry. According to statistics, the past seven years, the world photovoltaic industry average increase of over 35%. Recently, the province “Eleventh Five-year GDP energy consumption” put 16% in the period ahead unit, fell 10% reduction target. Serious situation given the search for new clean energy, development of photovoltaic industry , is the right time. “The structure of our energy, save energy, emissions reduction goal of building an environment-friendly society, great importance is adjusted province.” Provincial Economic and Trade Department said the technical development.

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electric, energy light sources, industry, PV, Solar, Sunrise

Development of a platinum-free Daihatsu Japanese auto companies announced alkaline fuel cell.

As fuel cells Alkaline twentieth century as the early fifties for space programs. The fact that the chemical properties of fuel cells in other types of fuel cells is different, fuel cells and other materials as a catalyst to react despite the use of cobalt, but platinum’s role more effective. First alkaline fuel cell, or base metals, precious metals or for the development of experimental use.

Nearly all car makers the feasibility of electric vehicles, as Chief Technology are exploring the use of fuel cells are proton exchange membrane fuel cell. A temperature proton exchange membrane fuel cell performance failure because of poison strong after more than alkaline fuel cells can tolerate, and a durability and reliability, high power, which is used for fuel cells is the car is necessary. Proton exchange membrane fuel cells use platinum as a catalyst. Not affect its Daihatsu study.

At present, there is Daihatsu alkaline fuel cell project is in an early stage, recently have some commercial products. Technology, cars, performance and stability of large automobile less stringent requirements small, is more suitable for a limited range.

Proton exchange membrane fuel cell has already used a more stable, and with further development. Despite the commercialization of applications, as they like Platinum and more development work, they need less load, but the mainstream of future fuel cell market.

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Cell, Free, Full, Platinum, Platinum Free

LTC4002 to may be higher than 8.4V constant current of the battery load, and the charge current, the LTC4002’s BAT and the SENSE resistor inserted between the client and sampling a signal conditioning circuit to adjust. The main function of circuit resistance on both sides of the sampling operation signals for different chemical properties of the battery, the corresponding signal is sent to the LTC4002. The signal conditioning circuit in Figure below.

Here is the definition of the voltage across the sampling resistor value is VBAT and Vsense, then the charge current sampling resistor voltage drop in the VRS for VRS = Vsense-VBAT, the signal for the subtraction output. Multiplier basis multiplied by the factor of K, then the multiplier output KVRS. For the lithium-ion batteries, a switch select two strobe battery voltage VBAT, the nickel-cadmium batteries, two switches at a constant voltage-gated 7v choose. Here are two analog switches select an output V1, then the output of the adder should Vs: Vs = V1 + KVRS, thus, sent to the LTC4002’s BAT and the difference between the voltage on SENSE be KVRS. As long as the proper control of K values, we can levy for the current normal charging current 1 / K. So, you can not control through two elections, a constant charging current of 10% or 30%.

The BAT for the LTC4002-ended input value when the switch gating lithium-ion batteries, BAT input the battery voltage. At this point LTC4002 can control the entire process of lithium-ion. Without any outside intervention.

When the switch gating constant voltage of 7v, BAT side of the constant feed of 7v, in this era, LTC4002 can know the true battery voltage, but that the battery voltage of 7v. So, even if the battery voltage is above 8.4V, it will continue to have a constant stream of battery time. In this case, the need microcontroller intervention, otherwise, will cause the battery to overcharge. If the internal microcontroller with ADC, you can change the battery voltage monitor. When the battery voltage reaches the specified value, reducing the charge current until the battery is full. It can be 9.2V nickel-cadmium batteries to recharge.

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circuit, conditioning, design, Signal

A to improve fuel economy: General Motors R & D D-VVT ECOTEC 2.4L four-cylinder engine as the latest “global engine”, which focuses on the application of a large number of today’s most cutting-edge engine technology, power, run smoothly and fuel economy other indicators of overall balance to achieve a very high standard. Currently this engine is applied to 20 vehicle models, including the Buick Lacrosse.

B hybrid: GM China and SAIC’s latest development, “Shen New Energy” hybrid passenger car appearances in Wuhan, which uses the latest emission standards to be achieved, the united states ISB260H Cummins diesel engine and hybrid system Ep40, the use of diesel per 100 kilometers is only 30.5 liters as the current average domestic large bus 100 miles, an average of approximately 30% lower fuel consumption and reduce emissions by 30%.

Baster in the field, General Motors hybrid technology first applied to the total energy consumption and high, the market share of large vehicles, from the large displacement of the pickup, SUV, multi-functional Transport high fuel car models start to save fuel . At the same time, diesel, bio-ethanol and other new environmentally friendly fuel that is used in many of GM’s cars. According to reports, will develop 17 new diesel engines for General Motors applied in 2008 introduced 45 new products under the used Saab Saab 9-3 and Cadillac BLS sedan at a new 1.9-liter four-cylinder diesel engines.

C power-driven model: General Motors of the power-driven model as a vehicle for the future development directions. In January of this year, based on E-Flex propulsion system, the Chevrolet Volt electric concept car that its world debut when the show’s first-generation model with a direct access from the external power supply charging energy technologies. At this year’s Shanghai International Auto Show, General Motors began promptly with a second generation of Chevrolet Volt electric concept car, with the help of an advanced fuel cell technology. To work for an average mileage of 40 miles or so for people who drive Chevrolet Volt electric car without the use of gasoline, does not produce any emissions.

D hydrogen-cell vehicles moving: Debuts in Wuhan, “Hydrogen III”, is a gradual decay of the fuel cell vehicle, relying on a 60 kW / 82 kW engine providing a driving force, the maximum speed of 160 km. At present, the hydrogen has to move on the 4th at the Frankfurt Motor Show debut. Hydrogen, General Motors electric motors represent the ultimate goal of new sources of energy. GM’s engineering designer Arnold said that the current movement of hydrogen cell vehicles have been equipped with the commercial viability, to mass production is not due to technical problems, but the poor infrastructure, it is difficult for all of the stations have changed in a hydrogen refueling station is expected to require 10-15 years to achieve. In addition to infrastructure problems, there is currently too expensive hydrogen-moving cars, not suitable for mass production.

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Nokia to recall this book, the change from Matsushita company from December 2005 to November 2006 during the production of BL-5C battery, in very rare cases may be due to short circuit when charging overheat, causing the battery to shift. Nokia and Matsushita will replace these batteries.

Nokia (China), Customer and Market Operations Chief Information Officer Cai Yun of the “China Economic Weekly” said that despite the current global lithium-ion batteries overheating on the report of about 100 onwards, there have not been any serious personal injury or property damage were reported.

“China Economic Weekly” from the battery to replace the task was responsible for this vision of Tianjin Samsung Co., Ltd. (hereinafter referred to as “Samsung Horizon”) was informed that this was mainly in the domestic replacement Zhuhai originally produced by Panasonic BL-5C batteries. Matsushita was founded in 1995, Zhuhai Corporation, Japan’s Matsushita Group’s wholly-owned, main production NOKIA mobile phones, PENTAX digital camera, IBM PC and other supporting SONY batteries and chargers.

“We do not know what the reason for the recall because it did not know what kind of technical problems,” a Samsung official said the Ministry of vision technology. According to its introduction, usually lithium in the process of charging for too long will be hot, but it will not affect the normal use of the battery, nor a security risk. The recall, “It should be in the production process there have been some problems.”

Nokia recalls before the incident, it has been reported that Motorola cell phone battery exploded wounding. Nokia recall the incident, but after 4 weeks, including Motorola and other handset makers have not shown that their cell phone batteries also need to recall.

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