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Nanomechanical energy storage in twisted nanotube ropes

In contrast to chemical and electrochemical energy carriers, the nanomechanical energy stored in a twisted SWCNT rope is safe even in hostile environments. This energy does not deplete over time and is accessible at temperatures ranging from −60 to +100 °C.
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Building ''wind-up'' sensors with carbon nanotubes

The research was published recently in the journal Nature Nanotechnology ("Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes"). Sanjeev Kumar Ujjain, from CAST, was a lead researcher on the work. He started the project while at Shinshu University, in Nagano, Japan, and continued after arriving at UMBC

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Can nanomechanical energy storage be competitive with alternative energy storage media?

Although nanomechanical energy storage in ultralong triple-walled CNTs 8, multiwalled (MW) CNT fibres 7, 18, MWCNT/graphene composites 19 and MWCNT ropes has been previously studied, the degree to which CNT systems may be competitive with alternative energy storage media remains unclear.

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Twisted carbon nanotubes could achieve significantly better

More information: Shigenori Utsumi et al, Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes, Nature Nanotechnology (2024). DOI: 10.1038/s41565-024-01645-x

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What is the energy density of twisted ropes?

Notably, the gravimetric energy density of these twisted ropes reaches up to 2.1 MJ kg −1, exceeding the energy storage capacity of mechanical steel springs by over four orders of magnitude and surpassing advanced lithium-ion batteries by a factor of three.

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Is a twisted SWCNT rope safe?

In contrast to chemical and electrochemical energy carriers, the nanomechanical energy stored in a twisted SWCNT rope is safe even in hostile environments. This energy does not deplete over time and is accessible at temperatures ranging from −60 to +100 °C.

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Deformations and nanomechanical energy storage in twisted

The calculated reversible nanomechanical energy storage capacity of carbon nanotube ropes surpasses that of advanced Li-ion batteries by up to a factor of ten. Discover the world''s research 25

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Shape-engineerable and highly densely packed single-walled

We present a rational and general method to fabricate a high-densely packed and aligned single-walled carbon-nanotube (SWNT) material by using the zipping effect of liquids to draw tubes together.

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How does a twisted SWCNT rope store energy?

Unlike a bundle of carbon fibres consisting of irregular graphitic nanoribbons that store energy during stretching, four different channels store energy in a twisted SWCNT rope 15, 16, 17. When the rope is twisted, each strand is subjected to stretching, twisting, compression and bending.

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Giant nanomechanical energy storage capacity in twisted

Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes Shigenori Utsumi 1,8, Sanjeev Kumar Ujjain 2,3,8, Satoshi Takahashi 1, Ryo Shimodomae 1, Tae Yamaura 1, Ryosuke Okuda 1, Ryuichiro Kobayashi 1, Oga Takahashi 1, Satoshi Miyazono 1, Naoki Kato 1, Keiichi Aburamoto 1,

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Carbon nanotubes and fullerenes | Nature Nanotechnology

Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes. nanotubes and reveals phase transitions that show an extreme sensitivity to nanotube diameter, with

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Twisted carbon nanotubes could achieve significantly better energy

More information: Shigenori Utsumi et al, Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes, Nature Nanotechnology (2024). DOI: 10.1038/s41565-024-01645-x

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Nanomechanical Energy Storage in Twisted Nanotube Ropes

The deformation energy of twisted nanotube ropes contains contributions associated not only with twisting but also with stretching, bending, and compression of individual nanotubes. We quantify these energy contributions and show that their relative role

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Giant nanomechanical energy storage capacity in twisted

Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes Posted by Dan Breeden in categories: energy, nanotechnology A single-walled carbon nanotube spring stores three times more mechanical energy than a lithium-ion battery, while offering wide temperature stability and posing no explosion risk.

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Giant nanomechanical energy storage capacity in twisted single

A sustainable society requires high-energy storage devices characterized by lightness, compactness, a long life and superior safety, surpassing current battery and supercapacitor technologies. Single-walled carbon nanotubes (SWCNTs), which typically exhibit great toughness, have emerged as promising candidates for innovative energy storage solutions. Here we

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Can a twisted rope reversibly store nanomechanical energy?

Here we produced SWCNT ropes wrapped in thermoplastic polyurethane elastomers, and demonstrated experimentally that a twisted rope composed of these SWCNTs possesses the remarkable ability to reversibly store nanomechanical energy.

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Giant nanomechanical energy storage capacity in twisted

chemical and electrochemical energy carriers, the nanomechanical energy stored in a twisted SWCNT rope is safe even in hostile environments. This energy does not deplete over time and is accessible at temperatures ranging from −60 to +100 °C. Single-walled carbon nanotubes (SWCNTs) offer unique possibilities to produce high-performance

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Limits of mechanical energy storage and structural changes

We find that a twisted nanotube rope may reversibly store energy by twisting, stretching, bending, and compressing constituent nanotubes. We find that in the elastic regime, the interior of a

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Twisted carbon nanotubes store 3 times more energy than lithium

Unlike the variable performance that lithium-ion batteries deliver under different operating temperatures, the twisted carbon nanotubes demonstrated consistency in energy storage through a wide

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Kaneko Labs

A PRESS RELEASE on "Giant Nanomechanical Energy Storage Capacity in Twisted Single-Walled Carbon Nanotube Ropes" published on Nature Nanotech (April, 2024). LINK. A press release about "Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes" was posted in Shinano mainichi shinbun (and other news

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High density mechanical energy storage with carbon nanothread

Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes Z. G., Seifert, G. & Tománek, D. Nanomechanical energy storage in twisted nanotube ropes. Phys. Rev

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Deformations and nanomechanical energy storage in twisted

Deformations and nanomechanical energy storage in twisted car-bon nanotube ropes1 DAVID TOMANEK, ZACHARIAS G. FTHENAKIS, Michigan State University, GOTTHARD SEIFERT, DAVID TEICH, TU Dresden — We determine the deformation energetics and energy density of twisted carbon nanotube ropes that effectively constitute a torsional spring. Due to the

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Can mechanical energy be used in twisted ropes?

To demonstrate the application and energy conversion efficiency of the stored mechanical energy in the twisted rope samples, we rotated a circular disc 8 × 10 3 times heavier than that of the y-rope (TPU) using the energy stored in the twisted ropes.

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About Nanomechanical energy storage in twisted nanotube ropes

About Nanomechanical energy storage in twisted nanotube ropes

In contrast to chemical and electrochemical energy carriers, the nanomechanical energy stored in a twisted SWCNT rope is safe even in hostile environments. This energy does not deplete over time and is accessible at temperatures ranging from −60 to +100 °C.

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