Opinions And Recommendations Of The Rechargeable Batteries

Rechargeable batteries are the preferred battery type: Within this group, Nickel Metal Hydride (NiMH) batteries are the current standard-setter. They offer an excellent long-term value for powering GPS receivers, headlamps, flashlights and bike lights. They’re also a good choice for small household items used frequently or continuously (toys, for instance) and “high-drain” devices such as digital cameras.

The upside of NiMH batteries:

They typically can be recharged and reused 150 to 500+ times. One set could do the work of hundreds and hundreds of single-use (“disposable”) batteries. Nearly 3 billion single-use batteries, mainly alkaline batteries, are sold in the U.S. each year. The majority wind up in landfills. Ouch.
They outperform single-use batteries in “high-drain” devices such as digital cameras and GPS receivers. Early in their life cycle, NiMH batteries discharge energy more steadily (and thus longer) than single-use batteries. In a camera (which involves repeated power bursts), alkaline batteries start strong but fade quickly. In GPS units, alkalines generally perform well.

Downside:

They require fairly regular maintenance. NiMH batteries lose power when sitting idle, 1% or more per day. To keep them operating near their peak, standard NiMH batteries need to be recharged (and preferably used) every 1 to 2 months.
They grow less predictable as they age. Late in their life cycle, NiMH batteries hold charges for shorter periods. Tip: If you own many NiMH batteries, avoid mixing older and newer cells—keep them paired or grouped. Tape ID tags on them.

Precharged NiMH batteries are the best rechargeables now available: Precharged NiMH batteries are also called “hybrid,” “ready-to-use” or “low self-discharge” batteries.

Upside:

Ready for action. They can go straight from the package into a device. No initial charging needed.
Lower “self-discharge” rate than standard NiMH batteries. All batteries experience “self-discharge”—a loss of stored power when a battery is not in use. Standard NiMH batteries may lose up to 40% of their stored energy in a month and be fully empty in as little as 2 months. Precharged NiMHs, which employ a type of modified ion, minimize that loss, surrendering only 10% to 25% of their stored power over 6 months. They can serve as backup batteries for trips lasting a couple of weeks or a few months.

Downside:

Some maintenance is still required. If left idle, recharging is suggested every 6 to 9 months.
Slightly less energy capacity than standard NiMH batteries. During periods of continuous or intense activity in a short time frame (shooting photos at a wedding, for instance), standard NiHM batteries will probably outlast precharged NiMHs due to their modest advantage in energy capacity.

Single-use batteries make excellent backup batteries: I always carry some as spares, though precharged NiMHs will also do. They store well for years, are always ready for action and offer high energy capacity. Pricey lithium batteries are superb performers (especially in cold weather), but check your gizmo’s instructions first before using them. Lithium batteries (at 3 volts per cell) can overpower some devices (headlamps in particular) and fry their circuitry. Alkaline batteries, meanwhile, are tried-and-true workhorses suitable for any device. In a GPS unit, for instance, they typically deliver about 2 days’ worth of continual service. Their chief downsides: 1) rapid depletion when used in a digital camera and 2) their unending cycle of use-discard-replace.

No ideal battery exists: As the charging cycles add up, rechargeable batteries hold charges for progressively shorter stretches. No rechargeable battery lasts forever, though they can usually be counted on for years. Single-use batteries, meanwhile, are predictable and convenient, but over the long long-term are more expensive due to the endless need to replace them. Plus, each year billions wind up in landfills because many people aren’t aware they can be recycled or don’t make the effort to do so.

Battery performance is not predictable: Many factors—the type of device being powered; the frequency or strength of a power drain; the temperature; battery age—make it difficult to forecast how consistently a battery will perform from one application to another or from one device to another. Please be aware that the guidelines offered in this article are all presented with an implied fudge factor. The old consumer bromide rings true when it comes to batteries: Your results may vary.

Batteries are evolving: Just like the microelectronic devices they power, today’s mass-selling batteries will become tomorrow’s dinosaurs. On the horizon: fuel cell batteries, thin-film polymers and batteries modified by nanotechnology.

Solar chargers are worth considering: For extended stays in remote corners of the planet, these ever-improving energy collectors can supply a moderate amount of power to your devices each day.

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Lithiumion Batteries Are Recyclable And Can Be Recovered During The Recycling

ABSTRACT:Lithiumion batteries are recyclable and the metal content of these batteries can be recovered during the recycling process.

The iPad is like a big iPhone, but when your hands are very clear that this is not designed as a device productivity, communication tool or utility gadget.When was unveiled January 27 in San Francisco, Apple is Steve Jobs asked: “Is there room for another device in our lives?”

David Pogue of The New York Times reported weight of 1.5 pound device is too heavy for reading compared to 10 Kindle the ounces. “You can not read well in direct sunlight” and “can not read the books from Applebookstore in any other machine or a Mac or iPhone wrote.

Stinnett noted that nanotechnology is spreading to all types of consumer products such as clothes, cars,  tires, lighting and the fact cosmetics.In, the company with the largest number of nanotech patents are L’Oreal. Norman Lewis, a research director at Halliburton Technology Center, said his employer, and several other oil companies have formed a consortium Advanced Energy, a research group dedicated to developing new techniques for identifying and extracting oil.

The U.S. Environmental Protection Agency (EPA) is to encourage people to recycle their mobile phones during the second annual National Cell Phone Recycling Week, 5 to 11 April 2010. This joint effort with the EPA plug-in to eCycling program and leading mobile phone manufacturers, retailersd wireless service providers to increase awareness of the importance of mobile phone recycling savings energy and save natural resources.

The all new 14 “X-Slim X420 weighs 1.88kg (Latitude D630) and less than an inch thin. Sophisticated, spirited, and highly mobile, this new model has a number of new design elements make it stand out from the crowd, includings new color print film and cappuccino exclusive keyboard chiclet. It has undergone a comprehensive upgrading of material in and out with the ATI Mobility Radeon HD 5430 cards and special Graphics (1GB DDR3), Core 2 of the Intel Duo processor and its own GPU technology MSI impetus given by the X420 looks great and process performance and enable the 8-cell VGP-BPS12 battery lasts up to nine hours.

Users can browse the store and buy a new Kindle books, change the font setting, and even sync purchased items to other devices like an iPhone. There is a full experience eReader, but it’s good enough for users constantly moving around.

Lithium ion batteries such aare recyclable and the metal content of thean be recovered during the recycling process. There is no question of a memory effect, which means it can be recharged before completely discharged without affecting the ability of energy. Li-ion is smaller, lighter and provides more energy than nickel cadmium or nickel-metal hydride Acer Aspire One battery

Speculation on potential acquisitions is swirling around the Acer, but Mr Lanci said Acer will focus on organic growth. “There are very few good acquisition opportunities today,” he said. Asked if Acmay look for targets, said: “The emerging markets for sure or perhaps the products are complementary to what we have.” In response to a question on market rumors that Acer could be interested in buying Toshiba s business type ‘PCs, said Toshiba is very small and will be able to add a few percentage points of global market share of Acer. “We can do it ourselves,” he said.

Unfortunately, these moves are not adaptable to current drivers. Gestures also do not provide much functionality outside the browser. These gestures work on both Mac and Windows without the drivers. These features add only drivers is the ability to adapt touchscroll sensitivity and ability to use the horizontal scroll bar. The horizontal scroll did not work very well becausfe. I use my mouse for two weeks, about 70-80 hours total and it still seems to be going strong.

No More Exploding Laptop Batteries?

Aww darn, no more cool explosions from exploding laptop batteries!  STOBA, a new material technology will steal the joy of seeing your laptop explode from faulty batteries. Boy, it seemed like a week didn’t pass without Apple, Toshiba laptop battery, Sony, Dell laptop battery, Sanyo, Lenovo, or some other laptop manufacturer issuing a battery recall due to exploding batteries. Well, apparently STOBA will make consumer electronics safer.

Taiwan’s Industrial Technology Research Institute (ITRI) has developed STOBA, a material technology that prevents lithium-ion batteries from overheating, catching fire or exploding.

Check out a video of how the technology works, including a demonstration on why lithium-ion batteries explode. There is an animated explosion in the demo, so enjoy.

ITRI’s STOBA material technology for Lithium-ion batteries has received a 2009 R&D 100 Award.

Innovative Technology is First to Ensure the Safety of Lithium-ion Batteries
Used in Many Consumer Electronics and Electric Vehicles

HSINCHU, Taiwan, Nov. 12, 2009 – ITRI (Industrial Technology Research Institute), Taiwan’s largest and one of the world’s leading high-tech research and development institutions, will accept a “2009 R&D 100 Award in Energy Devices” today, in Orlando, Fla., for developing STOBA (self-terminated oligomers with hyper-branched architecture), the first technology to enhance the safety of lithium-ion (Li-ion) batteries.

“It is a great honor to be recognized by a publication as prestigious and influential as R&D Magazine,” said Dr. Alex Peng, senior research scientist and deputy general director at ITRI’s Material and Chemical Research Laboratories (MCL). “During the past five years, the STOBA team worked diligently to develop this technology. They have truly earned this achievement.” 

Li-ion batteries, the power source for many consumer electronic devices, including cell phones, laptops, MP3 players, cameras, and hybrid and electric cars, are susceptible to overheating, which can cause fires and explosions. In the past, safety standards for Li-ion batteries could not be raised because there was no solution available.

To meet the growing demand for high-safety lithium batteries, ITRI successfully developed STOBA, which has fundamentally resolved the safety issue. By integrating a nano-grade high-molecular polymer, which forms a protective film, into the Li-ion battery, a locking effect is generated when the battery encounters excessive heat, external impact or piercing and interrupts the electrical and chemical action, preventing explosions. In 2008 and 2009, STOBA passed the mandatory shorting and piercing experiments conducted by battery manufacturers in Japan and Taiwan. These intensive nail penetration and impact tests confirmed STOBA’s effectiveness in preventing internal shorting and overheating in Li-ion batteries.

For the past 47 years, The R&D 100 Awards have annually identified and recognized the 100 most significant and revolutionary technologies newly introduced to the market. Past winning technologies include the printer (1986) and HDTV (1998). An R&D 100 Award serves as a mark of excellence to industry, government and academia and confirms the technology is one of the top innovations of the year. This year’s winners will be honored at a ceremony this evening in Orlando, Fla.

The Industrial Technology Research Institute (ITRI) is a nonprofit R&D organization engaging in applied research and technical services. Founded in 1973, ITRI has played a vital role in transforming Taiwan’s economy from a labor-intensive industry to a high-tech industry. Numerous well-known high-tech companies in Taiwan, such as leaders in the semiconductor industry TSMC and UMC, can trace their origins to ITRI.

Innovative Research
ITRI is a multidisciplinary research center, with six core laboratories, five focus centers, five linkage centers, several leading labs and various business development units. The six fields ITRI focuses on include Information and Communication; Electronics and Optoelectronics; Material, Chemical and Nanotechnologies; Biomedical Technologies; Advanced Manufacturing and Systems; and Energy and Environment. ITRI has aggressively researched and developed countless next-generation technologies, including WIMAX wireless broadband, solar cells, RFID, light electric vehicles, flexible displays, 3-D ICs and telecare technologies. In addition, ITRI’s Flexible Electronics Pilot Lab and Nanotechnology Lab provide international-level research platforms where R&D can be conducted jointly with partners. ITRI has also seen significant growth in intellectual property business and new ventures in recent years and is devoted to creating a model that would make Taiwan manufacturing even more competitive in the international arena.

Fostering Entrepreneurship and CEO Leadership
ITRI employs 5,800 personnel, including 1,112 who hold Ph.D.s and 3,206 with master’s degrees, resulting in an average of five patents produced every day. By disseminating both technology and talent, ITRI has led the technology industry into the 21st century and has cultivated 70 CEOs in the local high-tech industry. In addition to its headquarters in Taiwan, ITRI has branch offices in the California Silicon Valley, Tokyo, Berlin and Moscow.

New nanomaterials for light weight lithium batteries

Product Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Technological improvements, allowing to manipulate and investigate the properties of nanomaterials, are nowadays changing the approach to the energy storage and power supply vision. Modern nanoscale techniques led the market in the realization of nanostructured inorganic and organic materials increasing the efficiency of different devices, like lithium batteries, one of the most promising energy storage elements, obtaining everyday higher values of capacity, cyclability and environmental resistance. Each part of the battery, the anode, the cathode and the electrolyte, are here described analyzing the nanomaterials used for their realization.

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Nanotechnology Boosts Efficiency Of Lithium Ion Batteries

Nano World News: What are main advantages that battery manufacturers can expect from nanotechnology in the production of lithium ion batteries?

John Hill: Manufacturers are constantly striving for better batteries that offer improved conductivity, longer charge life and shorter recharge time. These elements are all critical to the evolution of li-ion batteries. Nanotechnology has shown to improve upon these features, enabling battery manufacturers to offer a better battery to OEMs producing a wide range of products, particularly consumer electronics. These advances are moving towards the possibility of widespread adoption of li-ions in electric vehicles.

NWN: For our readers who may not be entirely familiar with the science behind how lithium ion batteries work, can you walk us through the process?

JH: Within batteries, there are materials that operate as anodes and cathodes. During the charging process, the lithium ions move from the cathode into the anode. When a battery is discharging, that movement is reversed. Electrolytes conduct the lithium ions and serve as a carrier between the anode and the cathode when electric currents pass through an external circuit.

The materials selected as anodes and cathodes will affect a battery’s voltage, capacity and battery life. So will their quality — which is where nanotechnology comes into play.

NWN: What types of materials are typically used?

JH: Variations of carbon, typically graphite, primarily serve as anodes in today’s li-ion batteries.

NWN: And as cathodes?

JH: Manganese, cobalt and iron phosphate are common cathodes being used today. While lithium cobalt oxide and lithium manganese oxide batteries are commonly being used in consumer electronic products, the lithium iron phosphate (LFP) battery continues to gain popularity because of its improved safety and environmental advantages compared to the alternatives. Another major advantage is the longer cycle calendar life provided by LFP.

Iron and phosphate are also less expensive than other materials used in lithium ion battery production, and their high charge capacity makes them a good match for plug-in hybrid applications.

LFP battery cells do contain lower voltage and energy density levels than other li-ion batteries, but their slower rate of capacity loss helps LFP batteries maintain a higher energy density level than other li-ion batteries after a single year of use.

NWN: Where does nanotechnology fit into the production of li-ion batteries?

JH: Today’s nanotechnology manufacturing processes allow li-ion battery manufacturers to work with grinding media as small as 90 microns. (As a point of reference, a typical human hair is 10 microns wide.) This increased surface area of grinding particles not only leads to faster production time but to a more homogenous, consistent coating for use in the batteries.

Applying nanotechnology principles to the coating development process for both anodes and cathodes has proven to produce a better performing battery. At the most basic level, lithium ions penetrate the graphite anode faster and more easily when it’s homogenous and consistent. Nothing achieves this better today than using nanotechnology.

NWN: What is the best way that manufacturers can introduce nanotechnology?

JH: Media milling – or grinding – is the most well-established manufacturing method for nanoparticle production. Stirred media mills are used in many different industries to reduce particle size. By preparing coatings using proper grinding techniques, lithium ion battery manufacturers are joining the ranks of those who are able to develop higher-quality products because of the equipment.

NWN: What are some key considerations during the coating development process?

JH: Consistent dispersions play an especially important role in the anode and cathode coatings. The particles must remain smooth and free from agglomerates or clustering. Micronized air bubbles within the mixture can also impact conductivity of coatings and, ultimately, a li-ion battery’s overall performance.

Before and during the grinding process, lithium and graphite particles require careful attention to ensure that no contamination occurs to the coating mixtures. Metal grinding equipment can slough off metal particles leading to accidental contamination, affecting the final quality of the coatings. Today’s ceramic and polyurethane mixing and grinding tools can prevent this contamination and ensure that the performance of the coatings isn’t compromised.

NWN: How promising is the future for lithium ion batteries?

JH: Very promising. Right now, more resources than ever before are being funneled into the industry, and with the help of nanotechnology, the possibilities are endless. It’s hard to predict exactly what is ahead, but we’ve come a long way since Sony released the first commercial lithium ion battery in 1991.

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