700 F hybrid capacitors cells composed of activated carbon and Li4Ti5O12 microspheres with ultra-long cycle life

Dianbo Ruan, Myeong Seong Kim, Bin Yang, Jun Qin, Kwang Bum Kim, Sang Hyun Lee, Qiuxiang Liu, Lei Tan, Zhijun Qiao

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To address the large-scale application demands of high energy density, high power density, and long cycle lifetime, 700-F hybrid capacitor pouch cells have been prepared, comprising ∼240-μm-thick activated carbon cathodes, and ∼60-μm-thick Li4Ti5O12 anodes. Microspherical Li4Ti5O12 (M-LTO) synthesized by spray-drying features 200–400 nm primary particles and interconnected nanopore structures. M-LTO half-cells exhibits high specific capacities (175 mAhh g−1), good rate capabilities (148 mAhh g−1 at 20 C), and ultra-long cycling stabilities (90% specific capacity retention after 10,000 cycles). In addition, the obtained hybrid capacitors comprising activated carbon (AC) and M-LTO shows excellent cell performances, achieving a maximum energy density of 51.65 Wh kg−1, a maximum power density of 2466 W kg−1, and ∼92% capacitance retention after 10,000 cycles, thus meeting the demands for large-scale applications such as trolleybuses.

Original languageEnglish
Pages (from-to)200-206
Number of pages7
JournalJournal of Power Sources
Volume366
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

activated carbon
Microspheres
Activated carbon
Life cycle
capacitors
Capacitors
Spray drying
cycles
Nanopores
cells
radiant flux density
Anodes
Cathodes
Capacitance
flux density
drying
sprayers
anodes
cathodes
capacitance

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Ruan, Dianbo ; Kim, Myeong Seong ; Yang, Bin ; Qin, Jun ; Kim, Kwang Bum ; Lee, Sang Hyun ; Liu, Qiuxiang ; Tan, Lei ; Qiao, Zhijun. / 700 F hybrid capacitors cells composed of activated carbon and Li4Ti5O12 microspheres with ultra-long cycle life. In: Journal of Power Sources. 2017 ; Vol. 366. pp. 200-206.
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abstract = "To address the large-scale application demands of high energy density, high power density, and long cycle lifetime, 700-F hybrid capacitor pouch cells have been prepared, comprising ∼240-μm-thick activated carbon cathodes, and ∼60-μm-thick Li4Ti5O12 anodes. Microspherical Li4Ti5O12 (M-LTO) synthesized by spray-drying features 200–400 nm primary particles and interconnected nanopore structures. M-LTO half-cells exhibits high specific capacities (175 mAhh g−1), good rate capabilities (148 mAhh g−1 at 20 C), and ultra-long cycling stabilities (90{\%} specific capacity retention after 10,000 cycles). In addition, the obtained hybrid capacitors comprising activated carbon (AC) and M-LTO shows excellent cell performances, achieving a maximum energy density of 51.65 Wh kg−1, a maximum power density of 2466 W kg−1, and ∼92{\%} capacitance retention after 10,000 cycles, thus meeting the demands for large-scale applications such as trolleybuses.",
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700 F hybrid capacitors cells composed of activated carbon and Li4Ti5O12 microspheres with ultra-long cycle life. / Ruan, Dianbo; Kim, Myeong Seong; Yang, Bin; Qin, Jun; Kim, Kwang Bum; Lee, Sang Hyun; Liu, Qiuxiang; Tan, Lei; Qiao, Zhijun.

In: Journal of Power Sources, Vol. 366, 01.01.2017, p. 200-206.

Research output: Contribution to journalArticle

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T1 - 700 F hybrid capacitors cells composed of activated carbon and Li4Ti5O12 microspheres with ultra-long cycle life

AU - Ruan, Dianbo

AU - Kim, Myeong Seong

AU - Yang, Bin

AU - Qin, Jun

AU - Kim, Kwang Bum

AU - Lee, Sang Hyun

AU - Liu, Qiuxiang

AU - Tan, Lei

AU - Qiao, Zhijun

PY - 2017/1/1

Y1 - 2017/1/1

N2 - To address the large-scale application demands of high energy density, high power density, and long cycle lifetime, 700-F hybrid capacitor pouch cells have been prepared, comprising ∼240-μm-thick activated carbon cathodes, and ∼60-μm-thick Li4Ti5O12 anodes. Microspherical Li4Ti5O12 (M-LTO) synthesized by spray-drying features 200–400 nm primary particles and interconnected nanopore structures. M-LTO half-cells exhibits high specific capacities (175 mAhh g−1), good rate capabilities (148 mAhh g−1 at 20 C), and ultra-long cycling stabilities (90% specific capacity retention after 10,000 cycles). In addition, the obtained hybrid capacitors comprising activated carbon (AC) and M-LTO shows excellent cell performances, achieving a maximum energy density of 51.65 Wh kg−1, a maximum power density of 2466 W kg−1, and ∼92% capacitance retention after 10,000 cycles, thus meeting the demands for large-scale applications such as trolleybuses.

AB - To address the large-scale application demands of high energy density, high power density, and long cycle lifetime, 700-F hybrid capacitor pouch cells have been prepared, comprising ∼240-μm-thick activated carbon cathodes, and ∼60-μm-thick Li4Ti5O12 anodes. Microspherical Li4Ti5O12 (M-LTO) synthesized by spray-drying features 200–400 nm primary particles and interconnected nanopore structures. M-LTO half-cells exhibits high specific capacities (175 mAhh g−1), good rate capabilities (148 mAhh g−1 at 20 C), and ultra-long cycling stabilities (90% specific capacity retention after 10,000 cycles). In addition, the obtained hybrid capacitors comprising activated carbon (AC) and M-LTO shows excellent cell performances, achieving a maximum energy density of 51.65 Wh kg−1, a maximum power density of 2466 W kg−1, and ∼92% capacitance retention after 10,000 cycles, thus meeting the demands for large-scale applications such as trolleybuses.

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