Nano fiber membrane is the key to the production of lithium battery materials, mainly used to extend battery life. The performance of new products are up to standards, expert advice as soon as possible to expand production, develop applications to meet market needs.
Archive for August, 2011
According to foreign media sources, battery suppliers Thai Storage Battery (3K Battery) Daimler-Benz has received the battery supply contract. From 2012-2016 the supply of 500,000 Mercedes-Benz auxiliary battery.
3K Veerawin Korphaibool vice president, said this is the first 3K with foreign car manufacturers signed a contract because the 3K is usually common to the domestic supply of Volvo and battery.
3K announced first half sales of 30.6 billion baht ($ 102.6 million), up 34.2% in the first half net profit of 217.4 million baht (U.S. $ 1 = 29.84 baht), while the first half of last year, a loss of 1.95 million baht.
3K Battery expectation this year sold 1.5 million batteries, worth 5.7 to 5.8 billion baht, up 10 percent over last year.
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.”
