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Can Batteries Last forever? A new breakthrough may not far away

The breakthrough work could lead to commercial batteries with greatly lengthened lifespans for computers, smartphones, appliances, cars and spacecraft.

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Damaged mobile phones with dead batteries. Wikipedia
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Mya Le Thai, a scientist from the University of California, Irvine has introduced a new technology to mankind. An invention which is a nanowire-based battery material that can be recharged hundreds of thousands of times, moving us closer to a battery that would never require replacement.

She said Lithium ion batteries use nanowire technology which loses its ability to fully charge with time, they expand and grow brittle, which leads to cracking. So, there was a need to change this concept. These nanowires are extremely thin (1000 times thinner than the human hair). As a result, they are effective conductors of electricity and feature a large surface area for the storage and transfer of electrons. However, these wires are extremely fragile and don’t hold up well to repeated discharging and recharging.

Alkaline battery. Image source: Wikipedia
Alkaline battery. Image source: Wikipedia

According to Thai’s theory, nanowires could last longer if covered. After experimenting with many coverings they found a hard, clear plastic material called PMMA. These wires when covered with PMMA cycled through charges 28 times more than the covered ones. “The coated electrode holds its shape much better, making it a more reliable option,” Thai said. “This research proves that a nanowire-based battery electrode can have a long lifetime and that we can make these kinds of batteries a reality.” Also, they showed no signs of damage even after 200,000 cycles. It is unknown how much further testing of the batteries is needed before it could make a commercial debut; however, this was published in The American Chemical Society’s Energy Letters this week.

The breakthrough work could lead to commercial batteries with greatly lengthened lifespans for computers, smartphones, appliances, cars and spacecraft. And therefore, the results suggest that these batteries with covered nanowires might last forever.

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-by Vrushali Mahajan

Vrushali is pursuing her graduation in Journalism and is an intern at NewsGram. You can reach the author at twitter- Vrushali Mahajan 

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Apple loses $60bn over reports of weak smartphone demand in 2018

There are reports that Apple is designing and producing its own device screens, secretly at a facility near its headquarters in California

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Apple got lukewarm response for iPhone X. Pixabay
Apple suffers great loss. Pixabay

Apple lost over $60 billion in market cap in two days after Taiwan Semiconductor, Apple’s biggest supplier, said in an earnings update that second-quarter revenues would be hit by “weak demand from the mobile sector”.

Apple shares fell nearly seven per cent on Thursday and Friday over reports of a sharper slowdown in smartphone sales this year, Financial Times reported late on Friday.

Apple could acquire the entertainment company, Netflix
Apple lost 60 billion. IANS

Not just Apple, the news led to several global chipmakers losing market valus, including Analogue Devices, Dialog Semiconductor, Qualcomm and Qorvo.

For the first time since 2009, smartphone sales in China fell last year while global sales fell in the fourth quarter of 2017 for the first time since 2004.

In another setback for the iPhone maker, its efforts to get LG Display’s OLED screens for future iPhone production line “have hit manufacturing issues”, the Wall Street Journal reported on Friday Apple is reportedly divided on whether LG will be able to succeed as Samsung’s replacement for OLED displays.

Also Read: Apple Marks Earth Day With Donations

The Cupertino-based company currently uses Samsung’s OLED displays for iPhone X. The LCD panels which are currently being used in the iPhone 8 and iPhone 8 Plus are supplied by LG. Apple Watch screen is made by LG Display. There are reports that Apple is designing and producing its own device screens, secretly at a facility near its headquarters in California. It is believed that Apple will switch to OLED displays for all of its iPhone releasing in 2019. IANS

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