Laptop Battery Talk

Desperately seeking energy

Electricity from wind and solar power more effectively

Lithium batteries are not only the key component for the electrification of truck traffic, they also open up new possibilities for energy from wind and solar power more effectively. The idea of the researchers: small feeders in remote areas, for example, homeowners with solar panels on the roof, in the future may place on sunny days, excess electricity in today’s conventional lead-acid batteries stored in lithium batteries.

Wind

As energy could then use the batteries in electric cars. There is too little power, network access back to the stored energy in the batteries. This allows the electricity grid stabilized with the help of hybrid cars.

Wind and solar power will be supplied on demand

“This is one of many ways to save energy, which we run through the project ‘energy web’” explains Dr. Christian Doetsch, head of the energy division at the Fraunhofer Institute for Environmental, Safety and Energy UMSICHT in Oberhausen of the Fraunhofer-future theme coordinated. “Our goal is to make the delivery of wind and solar power as planned, as the energy from conventional power plants.”

Windfarm

Because scientists from seven Fraunhofer Institutes. The challenge: power from the sun and wind flow is very irregular. On windy days, wind turbines produce up to 20,000 megawatts of electricity - equivalent to the capacity of all German nuclear power plants. But is not always the amount of energy needed. In 2006, approximately 15 percent of the electricity generated by wind power plants could not be fed, and thus went for the consumption lost.

Effective caching

Photovoltaics

If by 2050 about half of total energy demand in Germany should be covered by renewable energies, the need for caching of generated energy efficient technologies are developed. The only way to continue to avoid that wasted energy is lost.

A similar situation arises with solar power. Dine on sunny days, solar energy systems into the public grid a - not on gloomy rainy days. However, power generation and consumption must comply at all times. To avoid gaps in coverage that fit the suppliers in the electricity generation and ready back-up service.

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Lithium-ion batteries are the key

Researchers are working on high-power batteries

Electric car in Zermatt

Until now, electric cars could not prevail on the market. The reason: There is a lack efficient, safe, durable and cost-effective energy storage systems. Today it comes with a tank load current less than 100 kilometers wide. And those electric mobility is bought with a price: about 15,000 euros or more does a battery.

In the future, designed to promote high performance lithium-ion batteries, the cars. These power packages already supplying mobile phones, PDAs, laptops, camcorders and cordless drill with power. The advantages of high-performance batteries: they are lightweight and have no memory effect. Advanced lithium-ion batteries are considered bowl component for powered vehicles.

Lithium-ion battery

Caution highly flammable

Modern lithium-ion batteries store at the same weight for about two to three times as much energy as ordinary nickel-cadmium batteries, “says Dr. Jens Tübke a decisive advantage. The expert in electrochemistry coordinates the newly founded Fraunhofer Network batteries combine in the development of its 13 institutes and research skills in the battery.

A key task is to develop powerful and safer lithium-ion batteries. The problem: the organic electrolytes are inflammable. Overheat the batteries, they may readily accordingly. The result: Time and again, must be PC makers to recall laptop batteries.

Safer

Researchers at the Fraunhofer Institute for Silicate Research ISC in Wurzburg are working to optimize safety. “We have succeeded in replacing the inflammable organic electrolytes with a non-combustible, dimensionally stable polymer,” explains Dr. Kai-Christian Möller, ISC team leader, the approach of the researchers. “This improves the safety of lithium-ion batteries.”

Prototype of a lithium-polymer batteries

The non-flammable polymer material originates from the group of Ormocers ® - a compound with silicon-oxygen chains that form an inorganic structure, which is associated with organic side chains. A first prototype of the new lithium-ion batteries have already been introduced to the researchers at the Hanover Fair. Until the energy storage in laptops, PDAs, navigation devices and cordless screwdrivers is used, however, likely still take three to five years.

Another way, lithium-ion batteries safer, has embarked on Evonik Industries. The company relies on a flexible Fleece based separator with ceramic particles, separates the anode and cathode of each other. The advantage of the “Separion ®”: It is more temperature than the currently used systems.

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Nokia patented self-charging cell phone battery

A mobile phone battery that recharges itself, simply because the mobile phone “wobble” - a patent application for this Nokia has released in February. Thus, the battery should be at least partially loaded again and extend the duration so clear.

The “heavier” components of mobile phones, such as the battery should sit on a frame that can move on rails in two axes. Respectively at the ends of the rails are piezoelectric crystals that generate electricity when compressed by the moving framework (the operation is the same as with an electric lighter). This is then the battery is charged.

Movement of the mobile phone which generates power, or in other words, a few hours of jogging with the phone in your pocket and the battery is full again and you can order a taxi home exhausted. But even during normal walking or even driving a car should be enough electricity generated to enable the battery have a significantly longer duration. Now, would all be just so efficient that they only very rarely, the phone needs to load.

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Sony calls Motion Controller Details

During a press event at the Game Developers Conference 2010 Sony finally announced some details for the PS3 motion controller, pointing software.

The days of ‘Arc’ and ‘Gem’ is over - the final name of the device is ‘PlayStation Move’. The accessories will be the impetus that we have already, still miss going.

During the presentation mentioned Sony and Nintendo even praised the pioneering role here just the Wii-maker, but always emphasized: Move was developed much more precise and more than the hardware of the competition.

According to Engadget, the device is lighter than the Wiimote and waits as the template with a rumble motor. While Nintendo is known is based on standard batteries, it was decided with Sony for an integrated battery, which is loaded as the Dual Shock pad via USB interface.

Sony will offer different bundles - Users who already have a console and the Eye-Cam to call their own, can buy the controller separately. Also, it will package with the camera and some software to give, is what the “cost less than $ 100. Last but not least: Of course there will be a PS3 bundle.

It is unclear at the moment apart from the price of the other bundles but also whether they also contain a second move controller - which has been assumed by some of the games shown. (Update: The information on the PlayStation blog suggests that it is the second input device and the sub-controller must grow separately.)

The latency of the controller would move at the same level as the Dual Shock controller - “less than one frame. The producer led, among other things collection from a game called sports champions, including one in the compete as a gladiator against other fighters can. As in earlier tech demo was shown, a controller while the use of the weapon, while the other acted as a shield. Also played: table tennis.

Two other features, namely the capture of faces and voice chat, are supported by the somewhat Eye Toy-like party game Move party, in which the players are displayed directly into the action.

LittleBigPlanet will be in the fall via patch fit for Move. Sony showed in how a player Sackboy via gamepad maneuvered through the area, while another with the motion controller manipulated the environment and objects moved or activated. Useable items were highlighted in the demo. Also EyePet will move to be made compatible.

With Motion Fighters Sony has in addition a third-person beat ‘em in the pipeline, which seemed like an advanced Wii Sports Boxing.

The Wiimote has a partner named nunchuck - in the case of Sony is the whole being ‘PlayStation Move sub-controllers’. The extension offers a diverse selection buttons and a directional pad also a stick, eventually will move to be fit-shooter. Zipper conducted before the process of how to play SOCOM 4 attributes per move. In contrast to the sub-controller nunchuck therefore, according to Kotaku, incidentally, completely without motion. (Update: In a recent article, it now says: Even in the sub-controller, a sensor has been installed. Because the device but lacks the ball for the camera detection, does not offer the same functionality as the main controller.)

In this fiscal year, according to Sony will publish details of Jack Tretton 20 games with Move-support. 36 third party would have promised to date to integrate the equipment into their own productions.

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In the third report, Devanathan, Venkatnathan, and Dupuis computed the dynamical properties of water molecules and hydronium ions in Nafion and related them to the structural changes reported previously. They confirmed other researchers’ finding that the behavior of water molecules within nanoscale pores and channels of PEMs, especially at low hydration levels, is remarkably different from that of molecules in bulk water.

At low hydration, fewer than 20% of the water molecules are free (bulklike). With increasing hydration, the diffusion coefficients of hydronium ions and water molecules increase, and the mean residence time of water molecules around sulfonate groups decreases. These results provide a molecular-level explanation for the proton and water dynamics observed in neutron scattering experiments.

Because the structure and dynamics of the membrane under different levels of hydration cannot be directly observed in experiments, there is no universally accepted model of the structure of Nafion. This research makes a significant step toward that goal and toward the development of the next generation of PEMs.

Characteristics of the ideal PEM include high proton conductivity at low hydration levels; thermal, mechanical, and chemical stability; durability under prolonged operation; and low cost. None of the existing membranes meet all these requirements, and developing new membranes requires a molecular-level understanding of membrane chemistry and nanostructure. Molecular dynamics simulations like these, together with experiments, are laying the foundation for future breakthroughs in fuel cells.

A fundamental understanding of the relationship between membrane nanostructure and the dynamics of water molecules is needed for the development of efficient, reliable, and cost-effective membranes to advance PEM fuel cell technology. The structure and dynamics of the polymer membranes under different levels of hydration cannot be directly observed in experiments, but they can be modeled in molecular dynamics simulations, as shown in a series of three papers published in the Journal of Physical Chemistry B by Ram Devanathan, Arun Venkatnathan, and Michel Dupuis of Pacific Northwest National Laboratory (PNNL).

2009 Mercedes Benz S class hybrid sedan for the fuel and electricity, plans to launch and market lithium ion batteries used car depreciation car manufacturers strive to become the first one.

Germany in Frankfurt International Motor Show, Mercedes-Benz one official said batteries are Johnson - Saft (JohnsonCon Juan trols-Saft) is available. A medium hybrid cars 2009 model S400 to be equipped with power systems, electric motors a starter system - can act as role generator.

According to reports, S400 0 miles from the hybrid sedan / h only 7.3 seconds, either 60 miles / h the speed, the world’s most fuel efficient luxury cars will be.

Industry that - for lithium ion batteries is expected to replace the current hybrid vehicles use left metal hydride batteries. Toyota Motor Corporation to use its next generation of powerful high-tech batteries - hybrid cars and other vehicles equipped with the company’s plan, but the battery in order ready for 2010 or wait until 2011.

NEC laptop battery maintenance

Since 2006 almost all notebook manufacturers in the world flows, “notebook battery recalls,” more than a year has been restored, but the Japanese companies a few days before the Council, the Japanese market for the brand, said sales “LaVie M”, “LaVie GM”, and ‘VersaPro “and therefore these three can cause distortion notebook repair free to provide users with fear as to the existence of battery overheating.

NEC also said at the same time, users do not care, that may cause a fire in a series of batteries and so far in an injury case requires.

NEC LaVie M Notebook

April 2005 to March 2003 mainly remember the objective is a model sold in the past two years, NEC also offers a special Japanese hotline.

January-August exports of primary cells significantly decrease in Guangxi

January to August, Guangxi 250 million export of primary cells, down 27%, 19.55 million U.S. dollars, an increase of 3.2% of the price. Average export price of 1.95 cents / only, 41.5% soon.

These key African export 230 million down 18.6%, 92% of total exports has Guangxi accounting for the consumer market for the original battery. 3.24 million of European Union exports have increased by 2 times.