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In Endurance Batteries

Security At Its Best

How safe are the new hybrid and electric cars? If the energy is no risk? Keep the batteries, the temperature fluctuations in the car from? They explode if they are damaged? To examine these questions and more are to be subject Researchers at the Fraunhofer Institute for Chemical Technology ICT in Pfinztal near Karlsruhe batteries of different hardness tests.

What can withstand loads of batteries?

Check that the batteries can withstand mechanical, thermal and electrical stress. What happens during a crash? As the batteries to respond to rapid changes in temperature or vibration? Puffed up the batteries when they are overloaded? Burns energy when it is lit?

“To determine the risk and the damage that we observe the behavior of the battery during the entire abuse testing under a variety of aspects. Both the temperatures and the rising and escaping gases for the purpose of an accurate risk analysis measured and evaluated, “says Dr. Jens Tübke from the Fraunhofer Institute for Chemical Technology ICT. The researchers are developing security concepts derived from them.

Hybrid Car

New Materials

In addition to the “ill-tests”, the researchers will also investigate whether there are suitable, for example, certain cells and batteries used in hybrid vehicles. Only proceed if the systems in these studies no risk, large batteries can be installed in a vehicle.

Also contributing to the safety of batteries provide the characterization of the used battery components and their material properties. The development of new battery materials is one of the current work of the “Applied Electrochemistry” of ICT and the “electrochemical energy storage and conversion” of the Fraunhofer Institute for Silicate Research ISC. The focus is on the synthesis and characterization of electrodes and the development of polymer electrolytes and ionic liquids for lithium-ion and lithium polymer batteries.

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New long battery life for mobile devices

Tin-sulfur-lithium ion battery as an alternative to conventional lithium batteries

The vulnerability of virtually all mobile devices today is much too short battery life. According to diligently research also focuses on improved batteries, which deliver significantly more energy, more durable and thereby to be reliable. Italian researchers now have a new variant of a lithium-ion batteries developed that could meet these criteria.

Laptop in action

The dilemma: cell phones, laptops, smartphones and PDAs are getting smaller, but also increases its energy needs. The batteries that come with no more: Treating it is not always the absolute good care, he breathes his life soon completely. Likewise, research on improved batteries, which deliver significantly more power, longer life and thereby to be reliable. Theoretically, this would lithium-sulfur battery energy supplier of choice because they - based on the mass supply - much more energy than conventional lithium ion batteries. The practical application, however, suffers from the fact that the electrodes dissolve gradually, resulting in loss of capacity. In addition, lithium metal can be deposited in the form of branches, causing short circuits.

That is the reason why commercial contained “Lithium” batteries, no metallic lithium electrodes, but also record a material, the lithium ions, and can unlock it, sometimes graphite. Such a properly-called lithium ion battery cell generates the source voltage only by a shift of lithium ions and provides correspondingly less energy.

Without metallic lithium battery

Bruno Scrosati, and Yusef Hassoun from the University of Rome have now developed a promising approach for a new variant of a lithium ion battery. The researchers combine the advantages of both types of long-life battery, in order to get along well storable, reliable, easily manufacturable, high-capacity battery. Your lithiummetallfreien new kind of cell uses a cathode (negative electrode) from a carbon-lithium sulfide composite.

To minimize the dissolution of electrode components to replace the scientists and the organic electrolyte solution through a lithiumionenhaltige trapped in a gel-polymer membrane liquid. The polymer protects the saturated with lithium sulfide liquid from the electrodes. The anode (positive electrode), and Hassoun Scrosati chose nanoscopic Zinnpartikel that are enclosed in a protective carbon matrix.

Also suitable as a vehicle drive

The electrochemical process is as follows: At the cathode is lithium sulfide into elemental sulfur and lithium ion gespalten.Dabei electrons are released. The lithium ions migrate through the electrolyte membrane to the anode, where they take up electrons and become neutral lithium atoms. The latter are bound by the tin oxide nanoparticles of the anode in the form of an alloy.

The process is reversible, so the battery can be recharged repeatedly. With a specific energy of about 1,100 watt-hours per Kilgramm the new cell exceeds all previous lithiummetallfreien batteries. With this high energy density of the new battery could also establish itself as a power source of choice for electric vehicles.

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Tank and cell phone battery is empty: Pregnant freeze in car

Estenfeld - Empty tank, empty cell phone battery, empty wallet: A pregnant woman from Hesse had on the trip to her parents in three Hoechberg near Wuerzburg pitch. See what’s on it:

A pregnant woman is lying in her car in the cold.

It was not until she walked out of fuel and she remained in her car on the highway 19 are between Estenfeld and Würzburg. Refueling would not have been possible anyway, because the woman had no money. Shortly after she asked her friend via cell phone for help, was then also the phone battery is empty.

Because the pregnant woman nor her partner could not say at the last second that she is about ten miles from Wurzburg, gave the police after a call of a man on a quest. Two hours later, officials found the motorist shivering in her car. The police announced on Sunday Würzburg, lent the forces of the pregnant women a few bucks for a few gallons of gasoline. After the incident on Friday evening, the woman was finally able to still visit their parents.

Pitch is probably not the right word, rather, inability to master the little things of everyday life. As a father of two teenagers and a teacher I can see that many young people are less and less “get to the series, but demand for more and more understanding. You will find it increasingly normal to miss important appointments, forget important documents that do not meet accepted tasks. Irresponsibility is the rule, while it falls out of fashion, such tendencies call a spade! Anyone who does that came out as old-fashioned, as old-fashioned! Hey Age, stay loose!

I think that the general provision of the prosperity drugs, such as “mobile phone”, “navigation systems”, etc. .. define as a lot has to do with it: you need not make any more precise understandings ( “I am now at the XY place where art thou?”) you must not organize / ( “I stand here in front of the shelf, honey, look but please if there is time yogurt in the fridge “)
Well, when the battery from the phone once it is empty, because you like someone who goes solely by the Navi and he drops out or he finds it no longer an
Blessed is he who throws home BEFORE it moves off vielliecht still take a look at the route, especially if he does not know … or just take a look at the fuel gauge throws and has even a sense of how far is the distance around.

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Dell’s Latitude business notebook explain the new generation (E4 series, E5 series, E6 series)

Since 1995, Dell sold in the global market, the total number of business notebook computers than any other company. The new Latitude, Dell is the largest force in the history of R & D products, Dell and more than 4,000 IT experts and end-user communication, research, the results of cooperation. Let us take a look at the use of a variety of new technologies in the Dell Latitude E5400 notebook battery life, portability, security, and a breakthrough design which:

Super battery: Some systems use cells can be a total of 19 hours of life. In addition, our 6-cell and 9-cell Dell battery performance has been great progress.

Network Connection: include Wi-Fi (802.11n), mobile broadband options, WWAN, super broadband and Ultra-wideband Bluetooth 2.1. Overwhelmingly in support of WiMAX, the user can choose to install GPS.

Security features: non-contact smart cards, fingerprint readers, hardware-based disk password set, as well as the unique solution ControlVault. It is worth mentioning in particular ControlVault, through the intelligent security sub-processors with embedded memory stability, away from the system through the main drive of the “vault”, to help protect the user’s authorization code and security keys (as Studio XPS 15 battery) use this fingerprint).

Focus on software control: ControlPoint software allows you to achieve the power management, connectivity settings, as well as the integration of control of security settings.

Design: the introduction of a new design language. The whole structure of the use of magnesium alloy shell hub all-metal. Soon, in addition to the original mica metallic stripes, which business models will have blue, red and black for your choice. This is our first commercial launch of the notebook computer keyboard with smart backlight lamps, you can automatically adjust brightness according to environmental brightness backlight lamp.

In accordance with the needs of users, these products can be divided into three types, and now we look at each of these products, we can see the products in the Flickr photo above.

Portable - Dell Latitude E4200 is a 12.1 inches notebook computer, only a minimum of 2.2 pounds (about 1 kg), is the history of Dell’s lightest business notebook PC. Latitude E4300’s 13.3 inches minimum weight of 3.3 pounds (1.5 kg). Models in the series for those seeking high performance and light in one of the mobile business professionals and corporate management design, this series will be listed within the next few weeks, there are blue and red casings to choose from.

Standard, including LED backlight display, enabling a more compact body to support a longer battery time. Users can also choose non-contact smart cards, embedded camera can be adjusted automatically according to the environment of the backlight brightness of the keyboard and the next generation of solid-state drives SSD. Also worth mentioning is expected in the next few months, Latitude E4200 and E4300 will be will use the Dell Latitude ON, this new technology uses a dedicated low-voltage sub-processor and operating system, allowing users almost instant access to e-mail, calendar, attachments, contact information and web pages without having to restart the computer’s main operating system (OS) (also Studio XPS 13 battery use this OS), the life of up to several days.

Mainstream - Dell Latitude E6400 and E6500 notebooks, respectively, for the size of 14.1 inches and 15.4 inches, respectively From 9528 yuan and 9779 yuan. The series is like the pursuit of high-performance desktop computers and notebook users an ideal product. E6400/E6500 provided the first non-contact smart card and fingerprint reader, users can choose the keyboard backlighting, LED-backlit display, battery-chip, built-in camera, the next few weeks will provide a choice of blue and red shell.

Basic - Latitude E5400 battery is a minimum price of $1200 is only 14.1 inches notebook computer; Latitude E5500 battery is a minimum price of $1300 yuan is only 15.4 inches laptop. These two models listed today, they have day-to-day computer applications, the high cost-effective, and soon will provide housing options for black ink.

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