Lithiophilic current collector based on nitrogen doped carbon nanotubes and three-dimensional graphene for long-life lithium metal batteries

Fang, Yanbo; Hsieh, Yu-Yun; Khosravifar, Mahnoosh; Johnson, Kenneth I.; Adusei, Paa Kwasi; Kanakaraj, Sathya Narayan; Preisler, Sarah; Zhang, Guangqi; Shanov, Vesselin

doi:10.1016/j.mseb.2021.115067

Cited by 18 publications

(11 citation statements)

References 52 publications

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“…It represents the defects or disorder in the structure and helps in differentiating graphene from its derivatives. The G peak exemplifies the stretching of the in-plane C–C bonds, while the 2D peak is the overtone of the D peak. ,, A 514 nm argon-ion laser having a 1 μm 2 spot diameter and an output of 8 mW of power was used to study the Raman spectra of 3D 2 G employing a Renishaw inVia Raman spectroscopy instrument. Various random spots on the samples were probed, and the spectra were plotted using OriginPro 9.0.…”

Section: Resultsmentioning

confidence: 99%

CVD Synthesis of 3D-Shaped 3D Graphene Using a 3D-Printed Nickel–PLGA Catalyst Precursor

Kondapalli

Khosravifar

et al. 2021

ACS Omega

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Earlier, various attempts to develop graphene structures using chemical and nonchemical routes were reported. Being efficient, scalable, and repeatable, 3D printing of graphene-based polymer inks and aerogels seems attractive; however, the produced structures highly rely on a binder or an ice support to stay intact. The presence of a binder or graphene oxide hinders the translation of the excellent graphene properties to the 3D structure. In this communication, we report our efforts to synthesize a 3D-shaped 3D graphene (3D 2 G) with good quality, desirable shape, and structure control by combining 3D printing with the atmospheric pressure chemical vapor deposition (CVD) process. Direct ink writing has been used in this work as a 3D-printing technique to print nickel powder−PLGA slurry into various shapes. The latter has been employed as a catalyst for graphene growth via CVD. Porous 3D 2 G with high purity was obtained after etching out the nickel substrate. The conducted micro CT and 2D Raman study of pristine 3D 2 G revealed important features of this new material. The interconnected porous nature of the obtained 3D 2 G combined with its good electrical conductivity (about 17 S/cm) and promising electrochemical properties invites applications for energy storage electrodes, where fast electron transfer and intimate contact with the active material and with the electrolyte are critically important. By changing the printing design, one can manipulate the electrical, electrochemical, and mechanical properties, including the structural porosity, without any requirement for additional doping or chemical postprocessing. The obtained binderfree 3D 2 G showed a very good thermal stability, tested by thermo-gravimetric analysis in air up to 500 °C. This work brings together two advanced manufacturing approaches, CVD and 3D printing, thus enabling the synthesis of high-quality, binder-free 3D 2 G structures with a tailored design that appeared to be suitable for multiple applications.

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Section: Resultsmentioning

confidence: 99%

CVD Synthesis of 3D-Shaped 3D Graphene Using a 3D-Printed Nickel–PLGA Catalyst Precursor

Kondapalli

Khosravifar

et al. 2021

ACS Omega

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“…Worse still, flake-like Li dendrites appear on the surface of PC after cycling, which are detrimental for the following Li nucleation and deposition (Figure S10, II). As for the Cu foil before activation, lots of flower-like Li dendrites aggregate on the surface after electrochemical cycling (Figure S11, I and II) . When the Li deposition amount reaches 0.8 mA h cm –2 (the bottom of the voltage dip), Li starts to plate on Co@NPC to form the Li nuclei (Figure b, III).…”

Section: Resultsmentioning

confidence: 95%

N-doped Porous Host with Lithiophilic Co Nanoparticles Implanted into 3D Carbon Nanotubes for Dendrite-Free Lithium Metal Anodes

Jiang

Diao

Xie

et al. 2021

ACS Appl. Energy Mater.

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Lithium (Li) metal is a promising anode material due to its high theoretical capacity (3860 mA h g–1) and lowest electrochemical potential. Nevertheless, the uncontrollable growth of Li dendrites and the infinite volume change during cycling restrict the practical applications of lithium metal batteries (LMBs). Herein, a dandelion-like host material, which is composed of a N-doped porous core with lithiophilic Co nanoparticles implanted into 3D carbon nanotubes (defined as Co@NPC), is developed to enable dendrite-free hybrid lithium metal anodes (HLMAs) even at high current density. The porous N-doped carbon polyhedron core inserted by lithiophilic Co nanoparticles provides high specific surface area and enriched nucleation sites to guide smooth lithium nucleation and deposition in the core with decreased nucleation barrier. Simultaneously, the nanochannel confinement effect of 3D carbon nanotubes inhibits the growth of dendrites and induces Li deposition into the internal space homogeneously. In virtue of the unique nanoarchitecture construction, the HLMA delivers superior Coulombic efficiency (98.3%) at a high current density of 5 mA cm–2 and exhibits ultralong lifespan (1000 cycles) with ultralow hysteresis voltage (31 mV) even at 10 mA cm–2. This work sheds light on designing and developing an advanced and scalable host for LMAs toward stable LMBs to be practical and feasible.

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“…[148] Particularly, the high specific surface area derived from the high porosity of the current collector is helpful to decrease the local current density, while the nitrogen groups of the CNTs contribute to an improved affinity to lithium, allowing the homogeneous nucleation of lithium metal and simultaneously preventing the dramatic volume expansion during plating (instead, the dendrites tend to grow on a routine lithium foil (with no lithiophilic groups) of low specific surface area), as shown in Figure 16a. [148] In terms of the cathode side, a composite membrane of MWC-NTs and polyacrylic acid (in a core-shell structure) has been ap-plied as the upper current collector, functioning as both the current collector and the interlayer for LSBs. [149] Specifically, the conductive MWCNT scaffold facilitates the electronic transport throughout the framework, as illustrated by the lower resistance of the hybrid-connected cathode than that of an Al foil-based counterpart (as shown in Figure 16b,c).…”

Section: Current Collectormentioning

confidence: 99%

“…[149] The resulting LSBs (with no Al foil) exhibit . Reproduced with permission [148] Copyright 2021, Elsevier. b) Diagrams of polysulfide diffusion and electronic transport using a standard Al foil (top) and an upper current collector (MWCNTbased film without an Al foil) (bottom).…”

Section: Current Collectormentioning

confidence: 99%

Solutions to the Challenges of Lithium–Sulfur Batteries by Carbon Nanotubes

Shearer

et al. 2023

Advanced Sustainable Systems

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The continuously increasing demands for energy storage devices for portable electronics and electric vehicles have aroused massive research interest in developing lithium–sulfur batteries (LSBs) with high energy density and long‐term stability. Carbon nanotubes (CNTs), possessing numerous superior properties, are integrated into various components of LSBs for performance improvement. Nevertheless, a systematic and insightful issue‐based study of their inherent roles in addressing the practical challenges of LSBs is lacking. There is a growing consensus that CNTs do not directly contribute to the specific capacity (i.e., being involved in the redox reactions with electron loss/gain), while their auxiliary roles, such as providing a conductive and mechanically reinforced framework for active materials, are of prime significance in regulating the electrochemical reaction, charge transport, and mass transfer in the system. In this paper, after briefly introducing the working principles of LSBs and the promising applicability of CNTs, current challenges in various components of LSBs are discussed with the corresponding CNT‐based solutions, followed by an evaluation of the potential for commercializing CNT‐involved LSBs. Finally, some future research directions are provided to improve the device performance further.

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Lithiophilic current collector based on nitrogen doped carbon nanotubes and three-dimensional graphene for long-life lithium metal batteries

Cited by 18 publications

References 52 publications

CVD Synthesis of 3D-Shaped 3D Graphene Using a 3D-Printed Nickel–PLGA Catalyst Precursor

CVD Synthesis of 3D-Shaped 3D Graphene Using a 3D-Printed Nickel–PLGA Catalyst Precursor

N-doped Porous Host with Lithiophilic Co Nanoparticles Implanted into 3D Carbon Nanotubes for Dendrite-Free Lithium Metal Anodes

Solutions to the Challenges of Lithium–Sulfur Batteries by Carbon Nanotubes

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