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Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices./
Author:	Gu, Taoli.
Description:	1 online resource (155 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Contained By:	Dissertation Abstracts International79-02B(E).
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355255744

Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices.
Gu, Taoli.

Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices. - 1 online resource (155 pages)

Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.

Thesis (D.Eng.)

Includes bibliographical references

Stretchable electronics are robust and functional when being mechanically bent, folded, twisted, and even stretched. They are attracting intense attention due to their promising applications in portable electronics and bio-implantable devices with arbitrarily adjustable surfaces. To power them, stretchable energy storage devices are the essential for the fabrication of independent and complete stretchable electronic systems. Material synthesis and structural design are the core of highly stretchable energy storage devices. Utilizing carbon nanotube (CNT) films as stretchable electrodes in supercapacitors has demonstrated excellent functionality and cycling stability. However, the main drawback of such a stretchable electric double-layer supercapacitor suffers from a low specific capacitance and energy density. In this dissertation, research efforts have been focused on three major breakthroughs in CNT film-based stretchable pseudocapacitors, stretchable asymmetric supercapacitors, as well as stretchable lithium-ion batteries, all of them exhibit excellent mechanical property and improved electrochemical performance.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355255744Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices.
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099 $a TUL $f hyy $c available through World Wide Web
100 1 $a Gu, Taoli. $3 1178939
245 1 0 $a Carbon Nanotube Film Based Nanocomposites for Stretchable Energy Storage Devices.
264 0 $c 2017
300 $a 1 online resource (155 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
500 $a Adviser: Bingqing Wei.
502 $a Thesis (D.Eng.) $c University of Delaware $d 2017.
504 $a Includes bibliographical references
520 $a Stretchable electronics are robust and functional when being mechanically bent, folded, twisted, and even stretched. They are attracting intense attention due to their promising applications in portable electronics and bio-implantable devices with arbitrarily adjustable surfaces. To power them, stretchable energy storage devices are the essential for the fabrication of independent and complete stretchable electronic systems. Material synthesis and structural design are the core of highly stretchable energy storage devices. Utilizing carbon nanotube (CNT) films as stretchable electrodes in supercapacitors has demonstrated excellent functionality and cycling stability. However, the main drawback of such a stretchable electric double-layer supercapacitor suffers from a low specific capacitance and energy density. In this dissertation, research efforts have been focused on three major breakthroughs in CNT film-based stretchable pseudocapacitors, stretchable asymmetric supercapacitors, as well as stretchable lithium-ion batteries, all of them exhibit excellent mechanical property and improved electrochemical performance.
520 $a The realization of dynamically stretchable pseudocapacitors using buckled MnO2/CNT hybrid electrodes has been achieved. The stable electrochemical performance of the dynamically stretchable pseudocapacitors under various bending/stretching conditions is attributed to a fast redox reaction at the MnO2/CNT hybrid electrodes, indicated by the extremely small relaxation time constant of less than 0.15 s. To increase the mass loading of the pseudo-capacitive materials in stretchable MnO2/CNT electrodes so as to improve the energy density of the pseudocapacitors, a novel all-solid-state sandwich-like capacitor design has been proposed and constructed, which overcomes the loading limitation of active materials and exhibits excellent structural and electrochemical stabilities. This novel component-level design can also be extended for improving the performance of other stretchable electrochemical systems. Afterward, we devote to developing a high operating voltage stretchable supercapacitor by taking advantage of the asymmetric design with MnO2/CNTs as the positive electrode and Fe2O3/CNTs as the negative electrode. Due to the synergistic effects of the two electrodes with an optimized potential window, the stretchable cell voltage is increased to 2 V, and the energy density is significantly enhanced.
520 $a Based on the successes on stretchable supercapacitors, a more challenge task for developing reliable and stretchable lithium-ion battery has been tackled. A bottle neck issue has been resolved by applying a low-temperature hydrothermal synthesis to fabricate the stretchable LiMn2O 4/CNT cathode. Chemical bonding is confirmed between the active materials and CNT scaffolds for the first time, which is the most important characteristic of the stretchable electrodes in a lithium-ion battery system.
520 $a With the unique mechanical and electrochemical properties, a variety of new technologies, such as smart textiles, soft robotics, active medical implants, and stretchable consumer electronics will benefit from the CNT film-based stretchable energy storage devices.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
650 4 $a Energy. $3 784773
650 4 $a Materials science. $3 557839
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0791
690 $a 0794
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Delaware. $b Mechanical Engineering. $3 1148693
773 0 $t Dissertation Abstracts International $g 79-02B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10274256 $z click for full text (PQDT)