Bio-inspired, nitrogen doped CNT-graphene hybrid with amphiphilic properties as a porous current collector for lithium-ion batteries

Hsieh, Yu-Yun; Fang, Yanbo; Daum, Jeremy; Kanakaraj, Sathya Narayan; Zhang, Guangqi; Mishra, Siddharth; Gbordzoe, Seyram; Shanov, Vesselin

doi:10.1016/j.carbon.2019.01.055

Cited by 34 publications

(5 citation statements)

References 55 publications

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“…The data showed that the addition of the SWCNTs plays an important role in the surface interactions of the composites [ 51 ]. The larger interfacial areas of the 3D hierarchical architecture obtained by the interwoven SWCNT and rGO can contribute to an increase in the interfacial interactions [ 51 , 52 ]. The excessive addition of the SWCNT appeared inefficient in increasing the surface interaction due to their agglomeration.…”

Section: Resultsmentioning

confidence: 99%

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

Lee

Kim

et al. 2022

Nano-Micro Lett.

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Highlights Highly flexible carbon ink-loaded polyester fabric/epoxy composites with outstanding mechanical durability and absorption-dominant EMI-shielding characteristics are fabricated. The fracture toughness is ~ 38.5 MPa m 1/2 and electrical conductivity is maintained after 1000 bending cycles. A superior electromagnetic interference SE /t of ~ 66.8 dB mm –1 was observed in the X-band frequency with over 0.7 absorption coefficient, related to the hierarchical structures composed of macro-scaled voids from the polyester nonwoven fabric skeleton and nano-scaled networks from SWCNTs/rGO.

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Section: Resultsmentioning

confidence: 99%

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

Lee

Kim

et al. 2022

Nano-Micro Lett.

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“…The NF-G@patterned-Al exhibits a rough surface because of the N-and F-doped graphene interfacial layer being coated with micropatterns with a diameter of ∼326.8−348.8 μm (aspect ratio of 3.09) (see Figure 2c) and a thickness of 0.48−0.61 μm after the dip coating process (see Figure S7). 19,20 In the case of NF-G@ patterned-Al, the N-and F-doped graphene interfacial layer is uniformly formed at both the top and bottom area (see the inset of Figure 2c). This layer acts as a conductive passivation layer that can increase ultrafast cycling performance by preventing Al foil corrosion while also offering a charge transfer pathway.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Interfacial Engineering of a Heteroatom-Doped Graphene Layer on Patterned Aluminum Foil for Ultrafast Lithium Storage Kinetics

Shin

Ahn

2020

ACS Appl. Mater. Interfaces

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The design of the interfacial architecture between the electrode and the current collector in lithium-ion batteries (LIB) plays a key role in achieving ultrafast lithium storage kinetics with respect to efficient charge transfer and cycle stability. However, in recent years, despite considerable efforts in the structural and chemical engineering of active materials (anode and cathode materials), interfacial architectures between the electrode and the current collector have received relatively insufficient attention in the case of ultrafast LIBs. Here, the interface architecture of a micropatterned Al current collector with a heteroatom-doped graphene interfacial layer is developed using roll pressing and dip coating processes. The cathode electrode fabricated with the resultant current collector offers increased contact area with enhanced interfacial stability between the electrode and the current collector because of micropatterns with heteroatom-doped graphene formed on the current collector, leading to outstanding ultrafast cycling capacity (105.8 mA h g–1) at 20 C. Furthermore, at extremely high rate and long-term cycling performance, significant ultrafast cycling stability (specific capacity of 87.1 mA h g–1 with capacity retention of 82.3% at 20 C after 1000 cycles) is noted. These improved ultrafast and ultra-stable performances are explained in terms of the increased electron collection/provision site with a high contact area between the electrode and the current collector for enhanced ultrafast cycling capacity and the effective corrosion prevention of the current collector with fast charge transfer for ultrafast cycling stability.

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“…An anodic material must have good electrical properties and active sites. 75,89 These same lithiophilic characteristics displayed by the pyridinic and pyrrolic configurations prevent the uncontrolled growth of lithium dendrites. 90 Mechanism of Lithiation in Graphite, Graphene and N-rGO Graphite lithiation.-Graphite is the most stable allotrope of carbon, made up of carbon atoms with sp 2 hybridization forming a hexagonal monolayer network (graphene layers) which interact in a Table I.…”

Section: Why Doping With Nitrogen?mentioning

confidence: 95%

Review—Rational Design of Nitrogen-doped Graphene as Anode Material for Lithium-ion Batteries

Rosa-Toro

Ccana

Riveros

et al. 2023

J. Electrochem. Soc.

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Nitrogen-doped graphene (N-doped Graphene; includes N-Gr and N-rGO), emerges as an interesting alternative for the development of new anodic materials for the next generation of lithium-ion batteries (LIBs). Due to their characteristics, they can be used both as active materials and in combination with other materials for the formation of composites. As a consequence of the N-Gr synthesis methodology, the physicochemical and structural properties are variable, depending on the number of layers, nitrogen percentage and configuration in the doping product, the presence of oxygenated functional groups, the electroactive area, and the 2D structure or 3D of the material, among others. These properties are closely related to its electrochemical performance, affecting the number of active sites for lithiation, lithium diffusion rate, and pathways through a battery system, charge transfer resistance, pseudo-capacitive contribution, mechanical stability, among others. In this review, we comprehensively analyze the different characteristics of N-Gr-based materials and their relationship with their performance as anodes in LIBs.

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Bio-inspired, nitrogen doped CNT-graphene hybrid with amphiphilic properties as a porous current collector for lithium-ion batteries

Cited by 34 publications

References 55 publications

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

Interfacial Engineering of a Heteroatom-Doped Graphene Layer on Patterned Aluminum Foil for Ultrafast Lithium Storage Kinetics

Review—Rational Design of Nitrogen-doped Graphene as Anode Material for Lithium-ion Batteries

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