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New technology make aerial route safer

May 26, 2014 By

F-16
F-16

WASHINGTON – Researchers have developed a new technology that promises much safer batteries in the future in view of the increasing concerns regarding the fire risks that lithium batteries pose to aircraft passengers,.

Researchers have created a new type of lithium ion conductor that could be the basis for a whole new generation of solid-state batteries.

The conductor uses rock salt Lithium Borohydride (LiBH4) which is a well-known agent in organic chemistry laboratories. It has been considered for use in batteries before. However, until now it only worked at high temperatures or pressures.

These researchers doped a cubic lattice of KI molecules with the LiBH4. This has allowed them to stabilise the high-pressure form of Lithium borohydride and thus make a solid solution at normal atmospheric pressure. It proved to be relatively stable at room temperature.

The team made a peculiar discovery during the invention of the new technology. The Li+ ions functioned like pure Li+ ion conductors, even though they were just doping the KI lattices.

This is actually the reverse of the normal doping technique in which a small amount of stabilising element would be added to an ionic conductor abundant in Lithium.

“In other words, LiBH4 is a sort of ‘parasite’ but not a host material,” said Hitoshi Takamura who is the leader of the research at Tohoku University in Japan.

The researchers said that the “parasitic conduction” suggested that it could be broadly applied in the search for new batteries.

“This work suggests the potential of this mechanism in the ongoing search for the perfect material for use in solid state batteries,” Takamura added.

The findings have appeared in the journal APL Materials.

Filed Under: Technology Tagged With: Technology

Android Kitkat 4.4.3 delayed, Lollipop may come in Nexus 10

May 26, 2014 By

Google Phone Prototype
Google Phone Prototype

According to the latest reports and market speculation it seems as if Google fans may have to wait longer than expected for the roll out of Android 4.4.3 Kitkat OS.

Android Geeks have reported that according to some sources, the update will be delayed again.

Initially it was reported that the Android 4.4.3 Kitkat OS update will be coming to Nexus 5, 4, 7 and 10 on May 23.

Google will probably release the update by the end of this month to the Nexus devices first, before quickly rolling out the update to its Google Play Edition devices.

The changelog of the Android 4.4.3 Kitkat OS will also include some fixes to the bugs found in the 4.4.2 Kitkat OS.

Moreover, Android 4.4.3 Kitkat OS may alter the look of the navigation buttons. According to the reports “the navigation button, back, recent tasks, and home buttons will be redesigned, and that the home button might sometimes be replaced by a new “center” button.”

The sources have also revealed that the Android 4.4.3 update is being dogfooded internally, which means that Google will roll out the update soon to Android-based devices.

Apart from the 4.4.3 Kitkat OS, Google is also working on some entirely novel software dubbed as Android 4.5 Lollipop. It is set to be released at Google’s I/O Conference next month.

The Android 4.4 Kitkat OS was released in November 2013 and it delivered quite a smooth and stable performance. Moreover there were very little complaints with the OS.

After that the search engine giant released two updates which aimed at addressing the issues and bugs that needed to be fixed. However, when users installed the current 4.4.2 version of Android Kitkat OS they complained about camera and battery issues. The 4.4.3 version is rumoured to bring a total of 36 bug fixes.

Google still has not confirmed whether it will release the Android 4.4.3 Kitkat OS update before or will just wait and introduce the 4.5 Lollipop in June.

Filed Under: Android, Technology Tagged With: Google, Kikat, Lollipop, Nexus

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