dell battery tips

Chinese-American scholars have recently invented an organic semiconductor materials, thin flexible material which is to explore new research found. Such fast conductive material, soft and durable features, is expected to promote light and easy to carry foldable electronic product development.

Department of Chemical Engineering at Stanford University associate professor of Baozhe Nan has been in use chemical knowledge and methods to develop new materials, she has invented the artificial electronic skin soft and sensitive solar cells can be stretched.

Bao Zhenan accept China news agency reporters in the interview that the electronic products used in inorganic materials such as silicon, with conductive fast and strong advantages, but bulky, heavy weight, easy to break but it is inevitable Achilles heel. Use of personal electronic products carrying more and more common to find alternative materials is imperative. New organic semiconductor materials, conductive invented fast, good flexibility, lightweight and durable, can be used to make television and computer displays, electronic circuits and so on.

With the current production of LCD TVs and computer monitors the main material of amorphous silicon, this new material is amorphous silicon conductive speed of 30 times. Baozhe Nan said, still some distance to the actual use of time. Although it’s a good conductive properties, but solubility is not satisfactory, further research and improvement. “I hope that with the way the industry to manufacture products combine the production of non-vacuum environment, such as the soluble ink made ​​with the printing of large-scale production methods.”

Recently, U.S. scientists have developed a new method create a piece of button battery, which provided by the butane fuel, run time is the same weight of lithium-ion battery 4 times, when the power runs out, simply by adding a small amount of new fuel, will be able to immediately to the battery. They also create another one by a radioactive decay provide heat to the battery, it can continue to generate electricity for 30 years, do not add fuel does not need maintenance, implementation time is expected to become the ideal space flight mission equipment power.

Massachusetts Institute of Military Institute of Nanotechnology engineers Horowitz said that tungsten is the main raw material for the new battery in the etching of the tungsten surface billions of nano-sized pits. When the tungsten absorbs heat, regardless of the heat from the sun, hydrocarbon fuels, is the decay of radioactive isotopes or other sources of heat, light will be issued, and emission spectra are constantly changing, as each pit as a resonator, can release specific wavelengths.

U.S. Department of Energy Information Management Center data show that the energy used today, 92 percent of energy needs through the heat into mechanical energy into the process longer. However, the efficiency of existing mechanical system is relatively low, and can not be applied to reduce the size of the sensor, smart phones or medical monitoring equipment.

Batteries usually can be used for 3 to 5 years. Life expectancy depends on many factors, including the use of (equipment must be in the number of battery-powered mode), and other environmental factors. Here are some of your equipment to ensure optimum use of the principle of life expectancy:

 1 Make sure your APC UPS placed in a cool, dry and ventilated place. Ideally, UPS placed where the temperature should not exceed 24 degrees Celsius. Meanwhile, for ventilation purposes, are set aside on each side about 1-2 inches of space for air ventilation.

 2 year only if necessary 1 to 2 times a UPS runtime calibration. Sometimes, you can run your run-time calibration to verify whether the running time is sufficient. However, frequently perform run-time calibration will reduce the APC battery life expectancy.

 3. Do not store the APC battery long time. New batteries can be stored for 6-12 months. After this time, they should use the battery as soon as possible, otherwise it will lose its large storage capacity. Not recommended for storage of used batteries.

 4 Do not over load the UPS rated capacity of 80%, as this will result in reduced run time. Load increases, the running time will be reduced accordingly. If the power can not supply full load of the UPS will soon run out and release the battery power, this will reduce battery life expectancy. Note: To ensure longer battery run time, do the laser printer connected to the UPS battery backup outlets. To ensure that laser printers use the “Surge only” outlet (using the appropriate model). For those who do not “Surge only” outlet of the UPS, recommended laser printer connected to a separate APC surge suppressor.

Sony announced that it will use tin (Sn) negative electrode material to improve the capacity of lithium-ion rechargeable battery. The development of the “18650″ size (diameter 18mm × high 65mm) of the cell, the capacity of up to 3.5Ah. With the company in 2010 compared to the original production of 2.8Ah capacity significantly increased by 25%. Scheduled to begin shipping during the year 2011.

 In fact, this is not the first time that the negative use of Sony lithium-ion rechargeable battery of Sn of their products. The company started in 2005 for the camera from the sale of the diameter of 14mm × 43mm high, “14430″ size battery cells. The laptop will be in volume production for a large circle of more than 14430 18650 size products.
 
The development of lithium-ion rechargeable battery has a positive and improved diaphragm. The cathode material by the capacity and safety of both the ternary class (Li (Ni-Co-Mn) O2) material into a lithium cobalt oxide (LiCoO2). Co in LiCoO2 material prices higher, and thermal stability at a disadvantage, so the cathode material has been directed triple class changes, but Sony was against the tide, using a higher capacity of the LiCoO2.

LiCoO2 in an internal short circuit or other abnormal temperature rise, this case will produce oxygen, oxygen reacts with the organic electrolyte may burn. Therefore, Sony LiCoO2 particle surface “in the 0.1 ~ 1μm thick coating process” (Inoue). According to the company, this approach can reduce the reaction of oxygen with organic electrolyte.
 
Diaphragm, in order to prevent internal short circuit, micro-porous polyolefin membrane in the formation of a few μm thick on both sides of the metal oxide ceramic layer (Figure 3). Ceramic layer with three-dimensional structure, the diameter of the metal oxide particles less than 1μm and a mesh-like adhesive resin was connected. When an exception occurs, the higher flexibility and adhesive resin network that allows insulation around the metal oxide attached to the foreign body, thus limiting the current through.

Membrane on both sides to form a three-dimensional structural ceramic layer. Once mixed with metal foreign bodies cause membrane damage, ceramic layer will transfer to the surface of metallic foreign body to prevent a large current through. (Figure from “Nikkei Electronics,” according to information drawn Sony)

Of course, the new unit there are also issues. For example, the repeated charge and discharge 300 times after the initial capacity will be reduced to about 80%. After repeated charge-discharge capacity of 500 will be reduced to about 60%, available only managed to reach the minimum standards used in notebook computers.

Texas Instruments Inc. (TI) announced the launch of an integrated bypass switch and unique DCS-Control technology, 3MHz, 100 mA synchronous step-down DC / DC converters. The latest device is based on MSP430trade; MCU’s low-power wireless applications, the comparable competing solutions, battery run time by 20%. The high-performance devices operating current of only 25uA, can support a variety of low-power applications such as Bluetooth (Bluetoothreg;) low-power systems, metering and building technology, mobile phones, consumer electronics, medical devices and human-machine interface .

In the transmit and receive mode, TPS62730 only up to 95% conversion efficiency, but also reduces battery current consumption. Ultra low-power bypass switch, and low power consumption in sleep mode current consumption of only 30nA. In addition, TPS62730 converter generates a typical output voltage ripple below 15mVpp, for the support of TI 2.4GHz CC2540 and CC430 System on Chip (SOC) applications such as low-power RF low-noise performance.

DCS-Control trade; is an advanced voltage regulator topology, integrated in a single device and the voltage-mode hysteretic control advantage, the AC line and support the excellent transient load regulation. This feature at high load and low load (energy) the workplace to achieve a seamless transition. In addition, other DC voltage feedback loop can ensure accuracy. DCS-Control technology to reduce the demand of external filter components, thereby reducing the associated space and cost.

According to Kyodo News, Japan’s third largest solar cell manufacturer Sharp, Kyocera, Panasonic’s 2011 fiscal first quarter (April to June) report showed that sales of solar cells than with flat or decline over the same period last year.

Andy Sharp, vice president Toshio pointed out by the East Japan Fukushima earthquake and the impact of the first nuclear power plant accident, natural energy to get attention, so “the domestic market remain strong.” However, falling prices in overseas markets and other factors have a negative impact.

Kyocera solar cells just as the core business to achieve sales growth of 1.3%. Society has long fang Tetsuo pointed out that in the solar power system has been popular in Europe, the acquisition market, “price fell.” Fong also said a long time, the price of solar cells “from a year earlier, down 2 percent over.”

The output power as a basis of sales, the Sharp is about 260 MW, with the year-ago quarter, but sales declined 10% to 51.3 billion yen (about 4.27 billion yuan). Although Matsushita’s sales increased by only 2%, but the real Wild on the Managing Director emphasized that “to maintain profitability.”

Statistics Department released data show that in the statistics of the 86 major industrial products, 67 kinds of products to achieve growth in production in the first half. Among them, the fastest growing is solar battery.

Since the beginning of the city attaches great importance to the development of industrial economy, making the industry to achieve stable and rapid economic growth. In the first half, the city’s above-scale industrial added value increased 17% growth rate in the province the third. Among them, heavy industry, light industry grew faster than 9.4 percentage points. Non-public economy booming, the city’s above-scale industrial added value accounted for the proportion of industrial-scale 67.2%, among which the joint-stock companies have obvious advantages.

Meanwhile, the city’s industrial economic efficiency has also been improving steadily. In the first half, large-scale industrial main business income of over hundreds of billions. Most products maintained rapid growth in the statistics of the 86 kinds of main products, there are 67 kinds of positive growth. Among them, the top four are solar battery, plastic products, feed and ferro-alloys, solar battery with 101.8% growth rate in the first place.

July 24, security chief of the laboratory consultant company Accuvant • Charlie Miller found that the Apple laptop battery chip security vulnerability, and thus vulnerable to hacker attacks, data theft even lead battery scrap.

Will be held in August in the “Black Hat conference,” Charlie Miller, plans to • people report an attack on Apple’s new notebook computer method, which uses a battery of security control weaknesses exist in the chip.

Modern laptop batteries have a capacity to monitor the level of micro-controller, it helps the operating system and recharge the battery charger detection. The chip makes the lithium batteries, even when the computer shuts down can also determine the destination charge, and can adjust the heat to the battery to ensure their safety.

However, in the detection of some of the Macbook, Macbook Pro and Macbook Air laptop computer batteries, Miller found that they are vulnerable to attack. Batteries at the factory with the default password, just cracked the password can control the chip firmware, and may make any hacker attacks, can cause permanent damage to the battery, malicious software can secretly to infect the computer, or even cause the battery to overheat, catch fire or explode.

In order to solve the Macbook battery problems, Apple released in 2009, software update, Miller through its analysis, found the two groups can be used to enter and modify the Apple battery password. With the password, he soon will be able to reverse the transformation chip firmware, free to manipulate the operating system and charger for the chip to read the data, or even completely rewrite the firmware.

Therefore, the battery becomes effortlessly can not be recognized by the computer - Miller has easily scrapped 7 cells (the total value of about $ 130). He pointed out that from the criminal point of view, even on a chip installed in the persistence of malicious software, as other parts of infected computers, steal data, function control and even let the computer crash. When checking the source of infection, few IT managers will think the battery firmware, so the chip can be repeated undetected malware infected PC.

In addition, to carry out such attacks, they need the chip and the interface between the operating system to find another loophole. But Miller seems that this is not a difficult one. “May it never be regarded as an attack entry point for Apple, so it may be easily compromised.”

Then the hacker may be to detonate by remote control batteries? Miller did not do so, but he believes this is possible, he said: “test in my own home, so I do not want to cause an explosion there.”

Miller said, some researchers suggested that he not continue the study of the battery, because it may be too dangerous. However, Miller found that for their own problems have solutions. He plans to held in August this year, “Black Hat conference,” released a product called “leak-proof gun” (Caulkgun) tools to help Apple users to change their battery firmware password random sequence, thus preventing him from ever conducted that the factory password for the attack. Miller also reflect his findings to Apple and Texas Instruments, to arouse their attention on the vulnerability. And Apple has not yet made any response to this.

“Shanghai Institute of Ceramics, Chinese Academy of Sciences - Sony lithium battery joint laboratory” in Shanghai on July 14 opening. Shanghai Institute of Ceramics, and Sony, respectively, in sodium-sulfur battery and lithium-ion battery development has accumulated a wealth of experience, joint research laboratory will be the next generation of battery technology, to develop a similar energy density of gasoline the car battery.

According to the Joint Laboratory Guoxiang Xin, deputy director of the Chinese researcher, the main advantage of the next generation of lithium batteries as large energy storage battery energy density can be increased compared with the previous battery 5-10 times. As the energy density of gasoline is similar to the next generation of lithium batteries is expected to solve a new generation of green vehicles - electric cars energy supply. In addition, next-generation lithium battery also has a friendly, high-power, long life and many other advantages. At present, the next generation of lithium battery research and development is still in the basic research stage, the need to address the battery power density, cycle stability and other issues, the application of new technologies into the market take some time. The “lithium Joint Laboratory” is enabled, Shanghai Institute of Ceramics, and Sony will make full use of both technology and talent resources to actively promote the development and application of the next generation of lithium batteries.

It is reported that as early as 2005, Sony Corporation and the Shanghai Institute of Ceramics, which signed the first joint research project contract of carbon nanotubes in 2007, Shanghai Institute of Ceramics, the two sides established a solar cell as the main object of study, focus on new materials development and application of energy the first joint lab in the new energy R & D has achieved good results.

The end of 2010, Changzhou Trina Solar Limited sales Pobai billion. But with the policy of European countries gradually reduce the subsidies, the PV market in 2011 was generally look bad.

After experiencing rapid growth in the next 10 years the PV industry will enter a second phase, the growth rate will not soar, but become more rational. However, the high discipline where it did not show much concern, “Last year, TRW’s sales in the global market for the 1.06GW, this component is expected to sell 1.75-1.8GW.”

PV industry now and in the growth stage, which is not in doubt. But the growth rate is gradually declining trend, but every year there may be some fluctuations. But this is not entirely because of subsidies decline. For example in Germany, in 2004, FIT (solar electricity price subsidies), the decline in subsidies every year. This is inevitable, if not decline, the industry’s contribution to society would be impossible. Long term, the cost of photovoltaic power generation side of the user should first achieve power parity, the parity after the realization of the power generation side.

The first echelon of several suppliers, including China and Japan, Europe, the United States, some companies, its sales accounted for 40% -50% of global share. The remaining twenty-three tier companies accounted for over 50 per cent.

In general, one tier of business approved by the bank, the customer groups are also large energy power company, or long-term investors, their needs and policy adjustment will not produce great changes. Customer base, which is really a group of opportunistic investors are directed at the high policy of subsidies to do, but their docking are generally twenty-three tier enterprises.

Challenges of the future is if energy storage battery technology can not keep up, then the solar energy development will be restricted. Solar energy is now an important part, and only accompanied by energy storage technologies, especially the size of energy storage technology, solar energy could become a major part.

PV industry is actually a human through technological innovation to create value. Recommended that the Government strive to foster a competitive industry well-known enterprises, such as Japan in the 1970s, the global leader in the appliance industry, companies such as South Korea’s leading companies in the semiconductor industry. Photovoltaic industry to become the pride of Chinese industry, must have such a position.