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Bicontinuous Spider Network Architecture of Free-Standing MnCoOX@NCNF Anode for Li-Ion Battery

Title
Bicontinuous Spider Network Architecture of Free-Standing MnCoOX@NCNF Anode for Li-Ion Battery
Authors
Samdani, JitendraKang, Tong HyunZhang, ChunfeiYu, Jong Sung
DGIST Authors
Yu, Jong Sung
Issue Date
2017-11
Citation
ACS Omega, 2(11), 7672-7681
Type
Article
Article Type
Article
Keywords
BatteriesCarbon-based materialsDiffractionElectric transport processes and propertiesHeat treatmentNanocompositesNanoparticlesNanostructures
ISSN
2470-1343
Abstract
Herein, a smart strategy is proposed to tailor unique interwoven nanocable architecture consisting of MnCoOx nanoparticles embedded in one-dimensional (1D) mesoporous N-doped carbon nanofibers (NCNFs) by using electrospinning technique. The as-prepared network mat of N-doped carbon nanofibers with embedded MnCoOx nanoparticles (MnCoOx@NCNFs) is tested as a current collector-free and binder-free flexible anode, which eliminates slurry preparation process during electrode fabrication in the Li-ion battery (LIB). The MnCoOx@NCNFs possess versatile structural characteristics that can address simultaneously different issues such as poor conductivity, low cycling stability, volume variation, flexibility, and binder issue associate with the metal oxide. The free-standing mat electrode shows not only high initial discharge and charge capacities but also reversible discharge cycling stability of almost 80% retention up to 100 cycles and 60% retention up to 500 cycles at 1.0 A/g. Such high Li storage capacity and excellent cycling stability are attributed to the unique flexible and free-standing spider network-like architecture of the 1D MnCoOx@NCNFs that provides the platform for bicontinuous electron/ion pathways for superior electrochemical performance. Along with excellent electrochemical performance, simple synthesis procedure of unique binder-free MnCoOx@NCNFs can achieve cost-effective scalable mass production for practical use in a flexible mode, not merely in LIBs but also in a wide spectrum of energy storage fields. © 2017 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/5633
DOI
10.1021/acsomega.7b01228
Publisher
American Chemical Society
Related Researcher
  • Author Yu, Jong Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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Collection:
Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles


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