DUBAI — The operator from the Boeing 747 cargo aircraft which went down within the Nad Al Sheba military camp area here last month, said on Sunday it was assessing fireplace risks posed by lithium batteries, according to a US Federal Aviation Administration (FAA) report on Friday. The crash killed both pilots.
The FAA had reported in its alert that the plane’s cargo contained substantial quantities of these batteries. "We note as well that United Parcel Service (UPS) Flight 006 crashed inside United Arab Emirates on September 3, 2010. Investigation with the crash is still underway, plus the trigger from the crash has not been determined. We are aware, on the other hand, that the plane’s cargo did consist of large quantities of lithium batteries and believe it prudent to advise operators of that fact."
Speaking to Khaleej Times, UPS Public Relations Manager Mike Mangeot, said the firm was within the procedure of analysing the authority’s report on hearth risks of lithium batteries.
"Speaking broadly, UPS has a standing lithium battery operating group and an in-flight fireplace mitigation team which are already looking at difficulties similar to those outlined from the Safo (Security Alert for Operators)." Mangeot mentioned the business would not be drawn into speculating the bring about with the crash when an official inquiry was being conducted by a team headed by the UAE’s General Civil Aviation Authority and included professionals from the US National Transportation Security Board (NTSB), Boeing, FAA and UPS.
It's vital to understand that the investigation into the Dubai accident has not mentioned a cause, and may possibly not for quite some time, until experts have been able to conduct a thorough analysis of the facts, he mentioned.
"We commend the FAA for its drive to strengthen lithium battery safety and have a long track record of functioning with them to boost security on industry-wide troubles like this," he added.
The Wall Street Journal had first reported that lithium batteries could have stoked the fireplace on board the ill-fated flight.
Smoke was reported from the cockpit and also the two pilots said they have been unable to maintain altitude, according to an GCAA statement earlier.
The FAA stated lithium metal batteries were highly flammable and capable of ignition. "This could be caused when a battery short circuits, is overcharged, is heated to extreme temperatures, is mishandled, or is otherwise defective.’
2010年10月13日星期三
2010年10月9日星期六
FAA On Lithium Batteries
The FAA Friday released a Security Alert to address "risks in transporting lithium batteries in cargo by aircraft" noting that UPS Flight 006, a 747 that crashed on September 3, was carrying large quantities of lithium batteries. Fireplace was reported on the UPS flight however the FAA notes that a trigger in the crash has not yet been determined. The crash destroyed the aircraft and killed the crew. The FAA has located that lithium metal batteries aren't only "highly flammable and capable of ignition" but also possess destructive explosive potential. The agency says Halon 1301, the fire suppression agent found in Class C cargo holds, "is ineffective in controlling a lithium steel cell fire" and lithium metallic battery explosions can lead to "rapid fire spread" in cargo compartments. Lithium-ion batteries are somewhat various. They can exhibit the same thermal runaway as lithium steel batteries, however the FAA says Halon 1301 is capable of suppressing lithium-ion battery fires. The FAA's recommendations are limited to batteries flown in cargo holds and do not apply to batteries carried by passengers or crew. The FAA is contemplating courses for further action.
The FAA recommends that all carriers attempt to identify lithium batteries and stow bulk shipments in Class C cargo compartments "or in locations where laternative hearth suppression is available." It encourages carriers to evaluate their training stowage and communication protocols with respect to "the transportation and of lithium batteries in the event of an unrelated fireplace." And requests that carriers pay unique attention to ensure safe handling and compliance with regulations covering Class 9 hazardous materials. At present, you'll find "no approved and tested containers that may contain the recognized effects of accidental lithium steel battery ignition." Access the FAA's flammability assessments via links at the bottom in the second page of the Security Alert
The FAA recommends that all carriers attempt to identify lithium batteries and stow bulk shipments in Class C cargo compartments "or in locations where laternative hearth suppression is available." It encourages carriers to evaluate their training stowage and communication protocols with respect to "the transportation and of lithium batteries in the event of an unrelated fireplace." And requests that carriers pay unique attention to ensure safe handling and compliance with regulations covering Class 9 hazardous materials. At present, you'll find "no approved and tested containers that may contain the recognized effects of accidental lithium steel battery ignition." Access the FAA's flammability assessments via links at the bottom in the second page of the Security Alert
2010年10月7日星期四
Electrochemistry: Paper Li-ion Batteries Offer Flexible Power Options
Ultrathin rechargeable lithium-ion batteries have been fabricated on a single sheet of paper, resulting in extremely versatile and lightweight portable power sources, according to a study published in ACS Nano by Stanford University researchers (DOI: 10.1021/nn1018158). The advance might present an integrated energy solution for the developing field of paper-based electronics and lead to applications in “smart” packaging and radio-frequency sensing.
To make the batteries, Stanford materials scientists Liangbing Hu, Hui Wu, Yi Cui, and coworkers coated a solid help with a thin film of carbon nanotubes and deposited a film of a metal-containing lithium compound on top of the nanotubes. Then the team deposited the double-layer films on both sides of ordinary paper. In that design, the lithium layers function as battery electrodes and the nanotube films serve as current collectors. The paper is the electrode separator and also serves as a mechanical support.
The new batteries, which are just 300 μm thick, are thinner and extra flexible, and they exhibit higher vitality density and other electrical benefits, compared with other varieties of thin batteries, the scientists say. They add that battery performance did not degrade over the course of a 300-cycle recharging test.
Juxtaposing carbon nanotubes and lithium compounds with paper has enabled the group to optimize the device in an ultrathin architecture, says Rice University’s Pulickel M. Ajayan. “Such simple fabrication methods could prove helpful for integrating other nanomaterials for building the next generation of energy-storage devices,” he says.
To make the batteries, Stanford materials scientists Liangbing Hu, Hui Wu, Yi Cui, and coworkers coated a solid help with a thin film of carbon nanotubes and deposited a film of a metal-containing lithium compound on top of the nanotubes. Then the team deposited the double-layer films on both sides of ordinary paper. In that design, the lithium layers function as battery electrodes and the nanotube films serve as current collectors. The paper is the electrode separator and also serves as a mechanical support.
The new batteries, which are just 300 μm thick, are thinner and extra flexible, and they exhibit higher vitality density and other electrical benefits, compared with other varieties of thin batteries, the scientists say. They add that battery performance did not degrade over the course of a 300-cycle recharging test.
Juxtaposing carbon nanotubes and lithium compounds with paper has enabled the group to optimize the device in an ultrathin architecture, says Rice University’s Pulickel M. Ajayan. “Such simple fabrication methods could prove helpful for integrating other nanomaterials for building the next generation of energy-storage devices,” he says.
2010年10月5日星期二
IPhone -Sixth-Generation iPod Reduces Production Costs, Extends Battery Life
The sixth-generation iPod, which has debuted to positive reviews, is a additional streamlined product. With all the update from the popular music player, Apple has aimed to trim down size and profile instead of add the bells and whistles. Gone is the click-wheel of previous models, replaced by a touchscreen, which helps make the overall design much more svelte.
According to research group iSuppli, the streamlining is additional than just about looks. The company keeps track of consumer products' bill-of-materials figures, which translates to how a lot every unit prices to produce. Together with the sixth-generation iPod, in accordance with iSuppli, the figure is $43.73. Only the fourth-generation iPod had a lower BOM at the time of its introduction: $40.80.
“Instead of piling on features, as so many brands do with their latest products, Apple with the sixth-generation iPod has maintained or even removed some attributes in order to fit the form factor and function desired,” said Andrew Rassweiler, director and principal analyst and teardown services manager for iSuppli, in a statement. “This has enabled Apple to provide the smallest iPod including a touchscreen, while keeping component expenses to a strict budget.”
The latest iPod Nano doesn't have a camera, for starters, unlike previous generations. The low-end model still uses just 8GB of NAND flash memory for music storage — the exact same as the fifth-generation Nano. In reality, simply because NAND flash pricing primarily stopped eroding during 2008, and even went up, Apple’s policy of doubling of NAND Flash memory content seen from 2005 to 2008 has primarily stalled from 2008 to 2010, in line with iSuppli.
Trimming down on the profile in the newer iPods has generated a benefit customers could be happy about. Mainly because with the changes made to newer models, the battery life has increased. A fully charged sixth-generation iPod can run up to 24 hours when totally charged.
According to research group iSuppli, the streamlining is additional than just about looks. The company keeps track of consumer products' bill-of-materials figures, which translates to how a lot every unit prices to produce. Together with the sixth-generation iPod, in accordance with iSuppli, the figure is $43.73. Only the fourth-generation iPod had a lower BOM at the time of its introduction: $40.80.
“Instead of piling on features, as so many brands do with their latest products, Apple with the sixth-generation iPod has maintained or even removed some attributes in order to fit the form factor and function desired,” said Andrew Rassweiler, director and principal analyst and teardown services manager for iSuppli, in a statement. “This has enabled Apple to provide the smallest iPod including a touchscreen, while keeping component expenses to a strict budget.”
The latest iPod Nano doesn't have a camera, for starters, unlike previous generations. The low-end model still uses just 8GB of NAND flash memory for music storage — the exact same as the fifth-generation Nano. In reality, simply because NAND flash pricing primarily stopped eroding during 2008, and even went up, Apple’s policy of doubling of NAND Flash memory content seen from 2005 to 2008 has primarily stalled from 2008 to 2010, in line with iSuppli.
Trimming down on the profile in the newer iPods has generated a benefit customers could be happy about. Mainly because with the changes made to newer models, the battery life has increased. A fully charged sixth-generation iPod can run up to 24 hours when totally charged.
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