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作者:

Han, Jiuhui (Han, Jiuhui.) | Liu, Pan (Liu, Pan.) | Ito, Yoshikazu (Ito, Yoshikazu.) | Guo, Xianwei (Guo, Xianwei.) | Hirata, Akihiko (Hirata, Akihiko.) | Fujita, Takeshi (Fujita, Takeshi.) | Chen, Mingwei (Chen, Mingwei.)

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摘要:

Developing advanced lithium-ion batteries that afford both high energy density and high power density has been one of the crucial research targets in the field of electrochemical energy storage. Realization of fast Li+ storage would require a smart electrode design that enables simultaneous enhancements in ion and electron transports as well as a fast and facile bulk-form solid-state reaction. Here we report a high-performance 3D bilayered composite electrode constructed by bicontinuous nanoporous graphene and thin molybdenum oxide stacking films. The novel electrode offers fast kinetics of Li+ diffusion and reactions and, consequently, delivers a large specific capacity of 710 mAh g(-1), the excellent rate performance of charging within seconds and an ultra-long lifetime over 13,000 discharge-charge cycles. High and stable volumetric capacities up to 900 mAh cm(-3) have also been achieved with the squeezed composite electrodes. This study shines light into the realization of a high-performance graphene-based porous electrode for advanced lithium-ion batteries and will inspire the development of new 3D hybrid materials for high-rate and large-capacity electrochemical energy storage.

关键词:

Bilayered nanoporous electrode High rate performance Li-ion battery Molybdenum oxide Nanoporous graphene

作者机构:

  • [ 1 ] [Han, Jiuhui]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 2 ] [Liu, Pan]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 3 ] [Ito, Yoshikazu]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 4 ] [Guo, Xianwei]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 5 ] [Hirata, Akihiko]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 6 ] [Fujita, Takeshi]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 7 ] [Chen, Mingwei]Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
  • [ 8 ] [Guo, Xianwei]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 9 ] [Chen, Mingwei]JST, CREST, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan
  • [ 10 ] [Chen, Mingwei]Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21214 USA

通讯作者信息:

  • [Chen, Mingwei]Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21214 USA

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来源 :

NANO ENERGY

ISSN: 2211-2855

年份: 2018

卷: 45

页码: 273-279

1 7 . 6 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:131

JCR分区:1

被引次数:

WoS核心集被引频次: 54

SCOPUS被引频次: 54

ESI高被引论文在榜: 0 展开所有

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