Latest topics
» WHY DOES TONY PODESTA LOVE RED SHOES? ( PART ONE)
Today at 1:45 pm by PurpleSkyz

» #QAnon News - Q Drops/They React plus more
Today at 1:43 pm by PurpleSkyz

» Benjamin Fulford 8-20-18
Today at 1:37 pm by PurpleSkyz

» Lions, and Tigers, and Bears....and oh, my! World Trusts! By Anna Von Reitz plus more
Today at 1:30 pm by PurpleSkyz

» Sort of "freaked out" as it went by her! - Had never seen anything like it before... WEIRD
Today at 1:27 pm by terbo56

» Bridgette Lyn Dolgoff on Know Weigh Radio Show Host Dr. Lenny Thyme July 26, 2018 PT1-5
Today at 11:39 am by Consciousness Of Economic

» POOFness for AUG 19: RESPECT... SOMETHING GHOULKOWSKI KNOWS NOTHING ABOUT
Today at 11:38 am by PurpleSkyz

» Bridgette Lyn Dolgoff on Know Weigh Radio Show Host Dr. Lenny Thyme August 9,2018 PT1-5
Today at 11:36 am by Consciousness Of Economic

» Bridgette Lyn Dolgoff on Know Weigh Radio Show Host Dr. Lenny Thyme August 2, 2018 PT1-5
Today at 11:33 am by Consciousness Of Economic

» "QFS Oversight of all Banking Activities" by Ron Giles
Today at 11:32 am by PurpleSkyz

» Bridgette Lyn Dolgoff on Know Weigh Radio Show Host Dr. Lenny Thyme July 18, 2018 PT1-5
Today at 11:29 am by Consciousness Of Economic

» Isaac Kappy Drops More Names: Marilyn Manson, Tyler Shields
Today at 11:28 am by PurpleSkyz

» 4 Years After CDC Whistleblower Reveals Vaccine Fraud Still Nothing Happens
Today at 11:21 am by PurpleSkyz

» Three transparent Spheres with figures inside caught over Lake Okanagan, Canada
Today at 10:53 am by PurpleSkyz

» UFO News ~ Does this look like a conventional aircraft? plus MORE
Today at 10:51 am by PurpleSkyz

» Study Shows Cell Phone Towers Harmful To Animals, Plants – 5G Will Be Much Worse
Today at 10:48 am by PurpleSkyz

» MIND BLOWING PICS!!The Stripe Planet reveals itself!!
Today at 10:45 am by PurpleSkyz

» NIBIRU News ~ WORMWOOD STAR TRUTH plus MORE
Today at 10:43 am by PurpleSkyz

» Vaccines - Causing Psychological Disorders & Anorexia In Children - David Icke
Today at 10:40 am by PurpleSkyz

» Mars weapon and structure found in NASA rover photo
Today at 10:39 am by PurpleSkyz

» holistic doctor forced to close clinic after family and patients lives threatened
Today at 10:36 am by PurpleSkyz

» Dustification: North Tower Spire Turns to Dust
Today at 10:34 am by PurpleSkyz

» Doctor to the Queen fatally struck while biking to work
Today at 9:42 am by bs4ever

» SETH RICH NEW DEVELOPMENTS
Today at 9:24 am by Visionkeeper

» The Artificial Battle Between Mind and Machine Over the Future
Today at 12:36 am by MartyM

» Tiffany Fitzhenry 8-17-18… “Where We Go One We Go All”
Today at 12:26 am by PurpleSkyz

» Strange Sounds over Miami FL!
Today at 12:16 am by PurpleSkyz

» Odd Fireball '40 times as bright as full moon' lights up Alabama sky
Yesterday at 11:04 pm by PurpleSkyz

» Jerzy Babkowski (AKA ZAP) "The Prey Of The Predator"
Yesterday at 9:53 pm by PurpleSkyz


CLICK THE SUBSCRIBE BUTTON BELOW TO RECEIVE OUR DAILY NEWSLETTER

A 2ND EMAIL COMPLETES THE ACTIVATION PROCESS




CLICK THE PURPLE BUTTON TO VIEW OUR LATEST POSTS



You are not connected. Please login or register

Out Of Mind » THE INSANITY OF REALITY » SCIENCE » Folded paper lithium-ion battery increases energy density by 14 times

Folded paper lithium-ion battery increases energy density by 14 times

Go down  Message [Page 1 of 1]

PurpleSkyz

avatar
Admin
Folded paper lithium-ion battery increases energy density by 14 times

Source: Extreme Tech

Could the solution to the impending battery crunch be… origami? Scientists at Arizona State University have created a lithium-ion battery out of carbon nanotube-coated paper — and then, by folding it like a map, they have increased the battery’s energy density by 14 times.

We should probably start with the fact that this foldable lithium-ion battery is made out of paper. As you’ve probably surmised, it’s not possible to bend a conventional lithium battery, because it has numerous rigid parts (the carbon anode, the protective casing). To create a paper-based battery, the scientists started with a KimWipe (a porous lint-free paper towel), coated it with polyvinylidene difluoride (PVDF) to improve adhesion of carbon nanotubes — and then dunked the PVDF-coated paper into a solution of carbon nanotubes (CNTs). Powders of lithium titanate oxide (LTO) and lithium cobalt oxide (LCO) — standard lithium battery electrodes — are sandwiched between two sheets of CNT-imbued paper. Thin foils of copper and aluminium placed above and below the sheets of paper complete the battery.


The end result is a thin, flexible paper-based battery with reasonable energy density for its mass/volume. The battery truly comes into its own when it’s folded, though. By using the Miura fold to stack the paper-based battery 25 times, the Arizona scientists found that the energy density could be increased by 14 times. The Miura fold, a rigid origami fold, was created by Japanese astrophysicist Koryo Miura for the space-saving deployment of spacecraft solar panels. Today, it’s most commonly found in fold-up maps, though even there it’s rarely used (probably because of the complexity of the fold). In short, the crease pattern of the Miura fold allows you to completely fold or unfold a piece of paper with just a single motion.

Using the Miura fold, the scientists took a 6×7-centimeter (42 cm2) lithium-ion paper battery, and kept folding it until it had a surface area of just 1.68 cm2. While this is a size reduction of around 25 times, the energy density was only increased by 14 times, due to losses from the folding process. The folded paper battery has an areal energy capacity of around 2.0 mAh/cm2, which drops off fairly quickly to 1.5 mAh/cm2 after a few charge/discharge cycles, but keeps its charge fairly well after that.

The scientists will now look at ways of folding the paper even more efficiently, further increasing energy density. Folded paper batteries might eventually be very useful for powering foldable devices — imagine a foldable e-ink or OLED display, powered by a foldable battery, that can be stashed away in your pocket when you don’t need it.



  

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum