Imagine being able to safely roll-up or fold your smartphone or tablet when packing for a trip. While this thought seems like a pipedream now, between the recent advancements in flexible displays and a newly developed bendable battery, it could very well soon become reality.
Professor Keon Jae Lee of the Korea Advanced Institute Of Science And Technology has created a solid-state lithium-ion battery that retains its charge while bending, folding and being rolled. This technology could potentially lead to a new wave of thinner, foldable and resilient consumer electronics.
"The advent of a high performance flexible thin film battery will accelerate the development of next-generation fully flexible electronic systems in combination with existing flexible components such as display, memory, and LED," said Lee when speaking about this new breakthrough.
While Lee didn't mentioned using this type of battery with commercial products, this won't stop us from dreaming of the day when we can fold up our 12-inch tablet and store it in our pockets. To see this flexible battery in action, check out the video embedded above.
A KAIST research team has developed a high performance flexible solid state battery
The team of Professor Keon Jae Lee from the Department of Materials Science and Engineering, KAIST has developed a high performance flexible all-solid-state battery, an essential energy source for flexible displays (see paper in Nano Letters: "Bendable Inorganic Thin-Film Battery for Fully Flexible Electronic Systems").
The technological advance of thin and light flexible display has encouraged the development of flexible batteries with a high power density and thermal stability. Although rechargeable lithium-ion batteries (LIB) have been regarded as a strong candidate for a high-performance flexible energy source, compliant electrodes for bendable LIBs are restricted to only a few materials (e.g., organic materials or nano/micro structured inorganic materials mixed with polymer binders). The performance of LIBs has not been sufficient either, thereby difficult to apply to flexible consumer electronics including rollable displays.
In addition, lithium transition metal oxides used as a cathode electrode have to be treated in high temperature (e.g., ~ 700 degrees for lithium cobalt oxide). However, it is not possible to anneal the metal oxides, an active material, at this high temperature on flexible polymer substrates.
Recently, Professor Lee's research team has developed a high performance flexible LIB structured with high density inorganic thin films by using a universal transfer approach. The thin film LIB fabricated on a mica substrate with high annealing temperature is transferred onto polymer substrates through a simple physical delamination of sacrificial substrates.
Professor Lee said, "The advent of a high performance flexible thin film battery will accelerate the development of next-generation fully flexible electronic systems in combination with existing flexible components such as display, memory, and LED."
The research team is currently investigating a laser lift-off technology to facilitate the mass production of flexible LIBs and 3D stacking structures to enhance charge density of batteries. [press_end]
The Galaxy S20 Ultra's Space Zoom camera is amazing and a bit creepy
The Galaxy S20 Ultra supports up to 100X zoom, which Samsung calls Space Zoom, but is it any good? Can a phone really product usable photos at 100x zoom? We've got our Galaxy S20 Ultra already so join us to find out!
Win an iPhone, iPad and Apple Watch with the Reader's Choice giveaway!
What's the best phone of 2019? Is it the iPhone 11 Pro, Pixel 4 or OnePlus 7T? What about the best laptop, games console, tablet and more? Vote NOW in the Reader's Choice awards and win BIG in time for the holidays!
Here are the best products from IFA 2019!
Here are the products announced at IFA 2019 that were worthy of our Best of IFA 2019 awards. Also featuring MrMobile's single best product at the show!
Keep the juice flowing with a best-selling CR2032 battery
The tiny coin-shaped CR2032 lithium batteries supply power to scales, keyless entries, home medical devices, flashlights, toys, watches, and more. Which batteries last longest and are the best value for your money? We tested them to find out.