Laptop News

According to iSuppli Corporation, thin-film solar cells are rapidly capturing the market share that crystal technology have by 2013,such as Dell latitude d600 battery . the PV part will be more double than the number of watts. solar panels in the global market, the efficiency of thin film will be from 14% in 2008 to 31% by 2013.

“First Solar has a strong proof of the viability of thin-film market(take the Dell inspiron e1505 battery for example )the company jumped the world’s largest manufacturer of solar panels this year, production is more than one billion watts.” ISuppli’s research director GregSheppard said, “At the same time, the company has already reduced per-watt the cost of production down to less than 90 cents a silicon crysta,it l is about half of the module manufacturer. ”

Crystal and thin-film

Most solar panels made from crystalline silicon, using 180-230 micron polysilicon. On the contrary, thin-film panels is made of other materials through the deposition of multi-layer substrate , the thickness is a few microns. The main difference between the two technologies lies in the efficiency and cost of electricity per watt. when thin-film panel convert the sunlight into electricity,the efficience is lower , but its production costs are significantly lower,like the Dell inspiron 6400 battery .

It is noteworthy that the film have a disadvantage in the limited installation space , such as residential roofing. Film installation may need more space to account for 15-40% of the crystalline silicon to achieve the same with the overall system power output. This tends to limit its activities in certain application areas more attractive.

Price comparison

Thin-film modules are expected next year, the average price will drop to 1.40 U.S. dollars, it is lower than in 2009 for 1.70 dollars ,such as Dell inspiron 6000 battery . In 2010 the average price of crystalline silicon panels are expected to fall to 2.00 dollars, 2.50 U.S. dollars this year.

iSuppli Corporation predicts that crystalline silicon will narrow the price gap to a certain extent by 2012 , because its suppliers are financially strong, they continue capital expenditures and technology development ,and has invested heavily in improving production processes.

Variety of thin film technology

Most of these techniques rely on chemical vapor deposition (CVD), or derived from the screen printing process, the layers of material deposited on different substrates, namely glass and various plastics. Some of the recent use of inkjet printing technology, like ways to more quickly deposited materials.

Another factor which promote the accelerated development of thin film technology is the use of materials, some companies provide more production lines, such as Oerlikon, and Centrotherm package,and Sony np-qm91 company.

There are a variety of thin-film photovoltaic technology. They are mostly less than 10% efficiency, although some technology can be efficient through experiments up to the middle class. Some of these technologies are referred to as a single node, using a diode. Recent developments in the use of multiple nodes with each other superimposed together, also known as tandem and three knots, so by using different materials or combinations wider absorption spectrum of knot.

MP3 player makers early in order to reduce costs, once the use of 7 batteries for Sony np-fh100 as a power supply system, and as players get smaller and smaller, 7 cells had been eliminated, lithium batteries become a standard. The advantages of lithium batteries is self-evident, but it’s life span is limited, once the more frequent use of MP3 players, batteries, the actual use of time is getting short in the end may only persist in less than 30 minutes, MP3 player, hey Do It’s that throwing a fragmentation?

The battery is broken, how to do ?

If in the warranty period, this problem occurs, we suggest that you had better go to after-sales service, in most cases, you can enjoy a free replacement service, if privately inside the Dell latitude c510 battery replaced, then the one-year warranty is expired, not worth the candle.

If it is out of the warranty period, you can search through the network the first look at MP3 players in your hands lithium battery models used in what is, in particular the voltage to be consistent. Hot models in general the mainstream, such as Meizu, Apple, Samsung, Onda brands, on-line can directly buy a standard lithium battery alternative, as long as the instructions to meet with the Samsung sb-l160 battery gift of specialized tools, the machine can be themselves apart hands Quhuan of.

However, some significant part of the MP3 player, use lithium batteries are non-target, then how should we do? In fact, we can go to the local electronics mall to buy the same voltage lithium batteries (at best the same size), different voltage lithium batteries must not be receiving the MP3 player directly to the above. Such as original battery voltage is 1.5V, and the purchase of the battery for Samsung sb-l320 voltage is 3.7V, then they must be connected to the middle of a step-down IC, so as to ensure that the circuit will not be burned.

Note that to extend the maintenance life of lithium battery

We need to stress, MP3 player, use in their daily attention and maintenance. If you buy a new MP3 player, then three times before the charge commonly referred to as an adjustment period, more than 12 hours should be sufficient to ensure the full activation of the lithium-ion activity. Although there is no apple a1022 battery memory effect, but there are also a strong inert, should be given the full activation can be guaranteed to use to achieve the best performance.

When the environment temperature reaches above 35 ℃, lithium battery-powered will not take as long as usual, when the ambient temperature to 4 ℃ below, also appears to reduce the use of time, the situation at this time is best not to charge the battery. To play the greatest performance of lithium batteries often need to use it, so that the electronic lithium battery is always in flux, if you do not often use lithium electricity, should be placed in the shade to reduce the passive reaction speed, and charge in advance, to prevent the battery due to excessive self-discharge, which led to over-discharge, reduced life expectancy, in the conditions permit, the best lithium Dell latitude c500 battery once a month to “shallow discharge light filling.”

1. Please use the original or the reputation of a good brand of chargers, lithium Dell inspiron 8200 battery  use lithium battery charger dedicated, and follow the instructions, otherwise it will damage the battery or even dangerous.
2. There are many users, often in charge when the phone open, in fact, it will hurt the mobile phone life very easily, because in the charging process, the cell phone circuit boards will be fever, at this time if there are external phone, you may create instantaneous return current, the phone’s internal parts damage.
3. The Dell inspiron 8500m battery life determined by the number of repeated charge and discharge, it should try to avoid battery power than when charging, it will shorten the battery life. Phone off for more than 7 days, should be first mobile phone battery is fully discharged, adequate electricity and then use.
4. Mobile phone battery self-discharge exist, not when the nickel-metal hydride batteries a day by about 1% of the remaining capacity of discharge, lithium batteries a day by 0.2 ~ 0.3% discharge.
5. In charging theDell inspiron 8600 battery , try to use a dedicated outlet, do not share household electrical appliances such as charger and TV socket.
6. Although our cell phones within the network coverage area, but the phone off charge, we can no longer accept phone and dial telephone. At this point, we can use the phone’s not connected to the transfer of functions transferred to the phone side of the fixed phone in order to prevent loss of calls, this method is not for the mobile phone network coverage in weak signal area, or is temporarily unable to connect when you apply.
7. Nickel-cadmium (NiCd) batteries must be guaranteed before the battery completely dead, then charge must ensure that the Dell inspiron 8600m battery fully charged.
8. If the mobile phone battery but not been used to place too long, it is best to phone the maintenance department to apply to the batteries for an activation treatment, you can own with a constant voltage DC device, adjusting the voltage 5-6V, current 500-600mA reverse Connect the battery. Note that the liberalization of touch, up to repeat three times, you can, and after such treatment, re-use original charger to “adjustment” charge.
9. The longer the charge when he is not good, for not protecting the circuit full battery for apple a1078 charge should be stopped immediately, otherwise the battery overheating due to heat or impact performance.
10. To use specialized lithium-ion battery charger, or they might not reach saturation, impact on its performance. After charging, the charger should avoid placing more than 12 hours or more, long-term without the Dell inspiron 9200 battery and cell phone should be separated.

If we want to extend the Dell inspiron 7500 battery ’s effective use of time, in addition to the quality of the charger should have guarantees, the proper charging technique is also essential, because the poor quality of the charger or charging the wrong methods will affect the battery life time and cycle life, Xiaobian remind you that as far as possible with the original charger for mobile phone charging.

1. the battery factory, manufacturers have carried out active treatment, and conduct a pre-charging, the Dell inspiron 7500 battery have more than electricity, a user said the battery charge in accordance with the time period of adjustment, standby is still a serious shortage, if the battery is indeed the genuine battery, then this kind cases, an adjustment period should be extended to 3-5 times and then fully charge and discharge.
2. if the new buy a lithium-ion cell phone Dell inspiron 8000 battery , then 3-5 times before the charge commonly referred to as an adjustment period, more than 12 hours should be sufficient to ensure the full activation of the lithium-ion activity. Lithium-ion battery without memory effect, but a strong inert, should be given adequate activated in order to guarantee that used to achieve the best performance.
3. some automated intelligent rapid charger when the lights change direction, only that was full of 90%. Charger will automatically change with the slow charging the Dell inspiron 8100 battery is full. it i s best to use the full battery, otherwise it will shorten the usage time.
4. before charging, lithium batteries do not need special discharge, discharge improper battery will be damaged.
5. charging as far as possible to slow Chong Chongdian to reduce the fast charge mode;
6. After the Dell inspiron 630m battery fully charge and discharge cycles for three to five times, its internal chemicals will be all “activation” to achieve best results.

The main types of power management chips and application of Laptop battery

If the design of the circuit require a high power supply noise and ripple rejection, require the occupier PCB board space is small (such as mobile phones and other handheld electronic products), the circuit does not allow the use of the power inductors (such as mobile phones), power supply needs to have instantaneous calibration and output state self-test feature that requires a voltage regulator voltage drop and its own low power consumption, low cost, and program a simple line, then the linear power supply is the most appropriate choice. This power includes the following technologies nikon d3000 vertical-grip: precision voltage reference, high performance, low-noise op amp, low dropout Regulator, low quiescent current. In the low power supply, the negative op amp power supply, LCD / LED driver and so on, often use chips based on capacitive switching power supply, which is commonly referred to as charge pump (ChargePump).

Chip charge pump works based on many products, such as the AAT3113. This is a general low-noise, constant frequency charge pump DC / DC converters consisting of white LED driver chips. AAT3113 uses scores of times (1.5 ×) conversion to increase efficiency. The device driver 4-way parallel mode LED. Input voltage range of 2.7V ~ 5.5V, output for each provide nikon d5000 vertical-grip about 20mA of current. The device also features a thermal management system features in order to protect any shorted output pins arising. The embedded soft-start circuitry prevents current overshoot at startup. AAT3113 using simple serial control interface to the chip enable, shutdown and 32 pairs of the number of scale brightness control.

The inductor-based DC / DC chip, the most extensive range of applications, applications, including handheld computers, cameras, spare batteries, portable instruments, micro-phones, motor speed control, display bias and color adjustments, etc.. The main technologies include: BOOST structure of current-mode loopnikon mb-d10 vertical-grip stability analysis, BUCK structure of voltage-mode loop stability analysis, BUCK structure of current-mode loop stability analysis, over-current, over temperature, over-voltage and soft-start protection, synchronous rectifying technical analysis, technical analysis of the reference voltage.

In addition to the basic power conversion chip, power management chip also includes the rational use of power for the purpose of power control electronic devices. NiH battery fast charging, such as smart chips, lithium-ion battery charge and discharge management chip, lithium-ion battery over-voltage, over current, over temperature, short circuit protection chip; the line between the power supply and backup battery management chip switch, USB power supply management chip fujitsu lifebook b6110d battery; charge pump, multi-channel LDO power supply, power-up sequence control, a variety of protection, battery charge and discharge the complex power management chips. At present, many products are moving in that direction, because the application of such products more widely, especially in consumer electronics.

Such as portable DVD, mobile phones, digital cameras and so on, almost with a -2 blocks of power management chip will be able to provide sophisticated multi-channel power supply fujitus fpcbp112, fujitus fpcbp112ap, so that the performance of the system to play to the best.

Analog chip digital power supply to make up deficiency of electronic devices with more functions, higher performance, its structure, technology, systems more complex, traditional analog technologies to meet the overall system power management IC power management requirements more difficult it is, the price is also more expensive. High-performance full-digital control IC is the field of intelligent power management trends, there is a flexible, rapid response, highly fujitsu lifebook e8310 battery integrated and highly controllable great advantage. Only a few established the current global semiconductor manufacturers, as well as the first new IC vendor into this new arena.

TI, Microchip, ZilkerLabs, iWatt, SiliconLabs and other companies put out their own digital power products. Digital controller core mainly consists of three specific modules: anti-aliasing (anti-aliasing) filters, ADC (ADC) and digital pulse width modulator (DPWM). In order to achieve the same analog control framework for performance indicators must be equipped with high-resolution, high-speed and linear ADC, as well as high-resolution fujitsu lifeBook s2210 Battery, high-speed PWM circuit design.

ADC resolution, must be able to meet the error is less than the output voltage to allow changes in the scope, the smaller the required output voltage ripple, then the higher requirements on the ADC resolution. At the same time, due to anti-aliasing filter, as well as pipeline-type or SAR ADC will introduce the loop delay, so we urgently need a high sampling rate of the ADC. Analog controller pulse width may be generated by the inherent limitations fujitsu lifeBook s6310 Battery, while the DPWM can generate discrete and limited set of PWM width.

The output from the steady state point of view, can only be a set of discrete output voltage. As the DPWM is part of the feedback loop, so the resolution of DPWM must be high enough in order to make the output does not display the value of a well-known limits of weeks. Do not show any minimum required limits of weeks the median value is determined by topology, the output voltage and the ADC resolution. At the same time, the system loop stability by the PI or PID controller to adjust. Compared with the structure of fujitsu lifeBook s6311 Battery the current analog control, digital control architecture, the cost will increase significantly.

Power Management IC

Power management chip a very wide range of nikon d300 vertical-grip applications, the development of power management chips for improving the overall performance of great significance, the choice of the power management chip and system requirements directly related to the development of digital power management chips need to cross the cost of difficulties. Today’s world, people’s lives is also inseparable from the moment of electronic equipment. Power Management IC in the electronic equipment system in the shoulder of the energy transformation, distribution, testing, and other power management functions. Power Management IC for electronic systems, is indispensable, and its performance, the performance of the pros and cons of the machine has a direct impact. Power management to improve the overall performance of all electronic devices have a power supply, but the different systems of the power requirements are different nikon d700 vertical-grip. In order to play the best performance of electronic systems, need to select the most appropriate power management. First, the electronic equipment is the core of semiconductor chips. In order to improve the circuit density, the chip feature size has always been trend towards reduced from the initial tens of micrometers to the current 0.5-micron, 0.35 micron, 0.25 micron, 0.18 micron and even 90 nm.

Since the same voltage, electric field strength decreases linearly with the distance increased, if the supply voltage or the original 5V, produced by the breakdown field strength sufficient to chip fujitsu lifebook b6000 battery. Therefore, the current chip voltage has changed from the previous 5V down to 3.3V, 2.5V, 1.8V, or even less. In this way, electronic systems of the power supply voltage requirements of the change, that is, require a different step-down power. In order to maintain high efficiency step-down at the same time, the general will use step-down switching power supply. At the same time, many electronic systems also need more than the power supply voltage, such as in battery-powered devices, driving liquid crystal display backlight power, ordinary white LED drivers, etc., need to boost the power of the system, which need to use the step-up switching power supply. In addition, modern electronic systems are high-speed, high gain, high reliability, direction, power supply are all small electronic devices interfere with the performance of an impact, which requires noise, ripple, etc. have an advantage of power, the need for the system Power to regulation, filtering, processing, which need to use a linear power fujitsu lifebook b6000d battery supply. On

Out of different power management mode, you can power through the corresponding chip, combined with minimal external components can be realized. Can be seen that the development of power management chip is to improve the overall performance of the essential means. Chip Select issue-specific power management because the scope of relatively broad, including both individual energy conversion (mainly DC to DC, that DC / DC), a separate power distribution and testing, including power conversion and power management system combining . Accordingly, the classification of power management chips also include these aspects, such as the linear power supply chips, voltage reference chip, switching power supply chips fujitsu lifebook b6110 battery, LCD driver chips, LED driver chips, voltage detection chip, battery charge management chips.

The status quo of international standards for lithium-ion Laptop battery

Currently has a larger influence on the international standard is IEC (International Electrotechnical Commission) standard, UL (Underwriters Laboratory) standards and the IEEE (International Electrical and Electronics Engineers) standard. Other foreign standards, such as the EU standard, Japan’s national standards, and many more for the introduction of IEC standards. And lithium-ion nikon d90 vertical-grip safety-related major existing international standards as follows:

1.IEC62133: 2002 “containing alkaline or other non-acid batteries and battery electrolytes – Portable sealed batteries and battery safety requirements”; 2.IEC62281: 2004 “in transit lithium primary cells and batteries and lithium batteries and battery of security “; 3.UL1642: 2006″ lithium nikon d200 vertical-grip “; 4.IEEE1625: 2004″ standard laptop computer batteries “; 5.IEEE1725: 2006″ for cellular phone battery standard. ”

In addition, IEEE1825 digital cameras and camcorders with battery standards are under development. The standard IEC62133 for the various uses of portable alkaline battery, including lithium-ion battery; IEC62281 applies to lithium primary batteries and lithium-ion battery transportation; UL1642 apply to all containing lithium batteries, including lithium primary batteries and lithium-ion fujitsu lifebook c2340 battery ; IEEE standards were applied to notebook computers, mobile phones and digital cameras and video cameras use lithium-ion batteries.

Jinzhou PV industrial park infrastructure has been in full swing

The new year, Jinzhou Xihai Industrial Zone, well-built specialized industrial park — photovoltaic industrial park, infrastructure has been in full swing for fujitsu fpcbp79.

In recent years, Jinzhou Development Zone, change the past “big investment” line of thinking to launch a new investment professional park initiatives, and in the west industrial zone planning and construction of photovoltaic industrial park. Merchants Park, the process of professionalization, the development zone projects first screening, in a professional park Baizhi affect the strong, has good prospects for development projects. Photovoltaic Industrial Park planning area is 1,500 acres, all assigned to the project put into production, annual sales income of 5 billion yuan. Bai Zhi project has an annual output of 100 megawatts of monocrystalline silicon solar cells, 40 tons of polysilicon ingots and wafers 2 million projects. At present, the annual output of 100 megawatts of monocrystalline silicon solar fujitsu fpcbp83 , fujitsu fpcbp83ap cell of the steel plant infrastructure projects has been completed, will be officially put into operation in April of this year.

The reason for this is the relatively small capacity of the graphite anode in these batteries to absorb lithium ions. A team led by Jaephil Cho at Hanyang University in Korea has now developed a new material for anodes, which could clear a path for a new generation of rechargeable batteries(thinkpad x60 tablet battery,thinkpad x61 tablet battery). As reported in the journal Angewandte Chemie, their new material involves three-dimensional, highly porous silicon structures.

Lithium ion accumulator batteries produce current by moving lithium ions. The battery usually contains a cathode (positive electrode) made of a mixed metal oxide, such as lithium cobalt oxide, and an anode (negative electrode) made of graphite. While the battery is being charged, lithium ions migrate into the anode, where they are stored between the graphite layers. When the thinkpad x60 tablet battery is being discharged, these ions migrate back to the cathode.

It would be nice to have an anodic material that could store more lithium ions than graphite. Silicon presents an interesting alternative. The problem: silicon expands a great deal while absorbing lithium ions (charging) and shrinks when giving them up (discharging). After several cycles the required thin silicon layers are pulverized and can no longer be charged,lenovo N100 battery,thinkpad x200 battery.

Cho’s team has now developed a new method for the production of a porous silicon anode that can withstand this strain. They annealed silicon dioxide nanoparticles with silicon particles whose outermost silicon atoms have short hydrocarbon chains attached to them at 900 °C under an argon atmosphere. The silicon dioxide particles were removed from the resulting mass by etching. What remained were carbon-coated silicon crystals in a continuous, three-dimensional, highly porous structure.

Anodes made of this highly porous silicon have a high charge capacity for lithium ions. In addition, the thinkpad x61 tablet battery are rapidly transported and stored, making rapid charging and discharging possible. A high specific capacity is also attained with high current. The changes in volume that occur upon charging and discharging cause only a small degree of swelling and shrinking of the pore walls, which have a thickness of less than 70 nm.

In addition, the first charging cycle results in an amorphous (noncrystalline) silicon mass around residual nanocrystals in the pore walls. Consequently, even after 100 cycles, the stress in the pore wall is not noticeable in the material.

The reporter learned that today’s mobile phones overheating mostly caused by the battery from Dell latitude d800 battery phone manufacturers . With the advances in technology, mobile phone batteries from nickel-cadmium batteries developed to the nickel-metal hydride batteries, to the now commonly used in lithium-ion batteries and lithium polymer batteries, akku performance, capacity has increased significantly, but the ability to generate heat was still a century ago. But it is now many companies have started to develop or have developed a new technology batteries, change the battery easily overheated. As for the hands can not change the existing “old” Dell latitude d630 battery , we can use to give it through scientific heatstroke.

New technology ,even short-circuit ,the Dell latitude d630 battery does not heat : In order to change the battery easily overheat, some foreign companies have begun to develop some new alternative energy sources. Panasonic has said that the company has developed a short circuit will not heat even if there is a lithium-ion batteries. This battery includes an internal high-temperature insulator, so that the isolation of existing material with the anode and cathode completely isolated. This insulator layer to ensure that in the short-circuit the laptop battery will not overheat.

New materials reduce battery heating time: ExxonMobil Petroleum & Chemical Corporation (Japan), the branch’s Tonen Chemical Corporation researchers have developed a new material of the isolation layer, can slow reaction time, an explosion in the Dell latitude d610 battery overheating let it cool down before the fire. Sandia National Laboratories United States are now testing the new isolation layer of security.

Common Mistakes:

1. A prolonged is exposured in the sunshine

The use of mobile phone exposure in the sun for too long, Gansu Province in 2007 killed one worker was thus consumers access to high-temperature region can not remember.

2. on the bed charge

Computer on the textile or beds, a number of the aging process of charging the Dell latitude d600 battery can sometimes cause a fire due to short-circuit.

3. contact with the antenna during a phone call

Many in the communications network in areas not covered are always eager to search for the signal, in fact, if you do not hurry to use mobile phones, this time off is best, because these signals are very weak areas, mobile phone networks continue to search for signals, not only consuming Dell latitude d531n battery current, but also the battery get hot.

Polysilicon information

Fast-growing solar photovoltaic Dell Latitude D430 Battery know how to cut into the first “stolen” material

As the growth of solar photovoltaic fast, so that the new entrants into the market active, but also makes the lack of polysilicon material sources worsening situation came to its peak in 2006, guided by course ought to MEMC Motech negotiations with the United States for long-term contracts is expected, after breaking up immediately from the mainland leading factory Suntech solar cells to obtain the contract material sources, and Suntech signed a long-term supply Dell Latitude D500 Battery contracts follow-up to the frequency and speed can be regarded as Asia or even the highest in the world, no wonder its global ranking from 10 out-jumped rapidly in 2006 the first four, expected in 2007 and further to 3.

Grab materials into photovoltaic industry has become the first basic cognitive activities, there is no material, nothing at all to do, there is material, even if can not make, the shift of trade transactions are profitable. Even though many senior international solar energy industry does not follow Dell Latitude D520 Battery the market to grab the hot material into action, relying on years of operational experience and rational judgments, this is only temporary overheating the market, if they are long-term contracts tied his throat, then a steady source of material , and these “cut-throat contract” will be the future operation and development of a burden.

Do not sign “cut-throat contract” but have to worry about the first breakage

But the rational judgments Quenan arrived in the market Queliao high expectations generated by the effect of the market in 2007 without signing a contract on the outgoing part of the factory came under international pressure to free materials are available, along with the spot Dell Latitude D600 Battery market expected to drive up the price of long over-bought would be seriously eroded gross margins, forcing these firms to cut production to cope.

Even in 2008, 2009 or 2010 forecast for new capacity gradually disclose the source material, but the mode of operation will also be supplied to the source material prior to the contract tied to the industry on the whole, material sources may indeed increase, but supply is expected to increase The benefits are only a small number of people who fall, did not sign the contract also Ku Haha, excellent development of a very bad two polarization may occur in the solar apple powerbook g4 12 battery photovoltaic in the next few years.

The original rational judgments are not bound to follow the market turmoil go and contract feeding industry, but the growing expectations in the market situation, making the source material is becoming increasingly difficult to obtain, resulting in more than “cut-throat contract” earlier life experience crossing Apple IBook G4 AC Adapter dilemma.

Within the next few years, in the industrial environment, excellent very bad erosion, the original may result Jiangshan yielding someone else’s crisis, until the market plenty of material sources, and again re-starting campaign, we may once again have been faced with business Apple PowerBook G4 AC Adapter opportunities scramble to catch up with the fear is difficult.