Graphene composite lithium battery negative electrode
Preparation and electrochemical properties of flexible self-supported graphene/silicon/carbon nanotube composite electrode for lithium-ion battery ...
To characterize the micro morphology and structure of the rGO/Si/CNTs composite, the surface and cross-sectional characteristics of the obtained samples were characterized by SEM, respectively. In Fig. 1, it can be seen that the rGO folds, one-dimensional CNTs, and rGO coated Si NPs were in the three different content composites with no cracks on the …
Defective graphene decorated with TiO2 nanoparticles as negative electrode in Li-ion batteries …
In this work, the performance of novel negative electrodes for Li-ion batteries based on defective graphene synthesized via a scalable thermal exfoliation of graphite oxide and decorated with TiO 2 nanoparticles is investigated. Titania polymorphs are interesting as ...
Molecules | Free Full-Text | Nanostructure Sn/C Composite High-Performance Negative Electrode for Lithium …
Tin-based nanocomposite materials embedded in carbon frameworks can be used as effective negative electrode materials for lithium-ion batteries (LIBs), owing to their high theoretical capacities with stable cycle performance. In this work, a low-cost and productive facile hydrothermal method was employed for the preparation of a Sn/C …
Graphene for batteries, supercapacitors and beyond
Graphene is also very useful in a wide range of batteries including redox flow, metal–air, lithium–sulfur and, more importantly, LIBs. For example, first-principles calculations indicate that ...
All-graphene-battery: bridging the gap between supercapacitors and lithium ion batteries …
The similar chemical composition and microstructure of both electrodes in all-graphene-battery maximized the performance of each ... properties of negative electrodes for Li-ion capacitors. J ...
Role of graphene-based nanocomposites as anode material for …
A separator is located between the positive and negative electrode in a LIBs system, and is able to avoid contact between opposite electrodes and allows lithium ions …
Silicon-Reduced Graphene Oxide Composite as Negative Electrode of Li-Ion Batteries …
Two types of treatment of the initial mechanical mixture [silicon nanopowder and graphene oxide (GO)] for obtaining Si/RGO nanocomposites were used: reduction in hydrazine vapor and heat treatment at 550°C in an argon atmosphere. It was shown that the type of reduction has an influence on the morphological and …
Progress and prospects of graphene-based materials in lithium batteries …
Reasonable design and applications of graphene-based materials are supposed to be promising ways to tackle many fundamental problems emerging in lithium batteries, including suppression of electrode/electrolyte side reactions, stabilization of electrode architecture, and improvement of conductive component. Therefore, extensive …
Optimization of graphene dose for improved electrochemical performance of silicon–graphene negative electrodes in lithium batteries …
Optimization of graphene dose for improved electrochemical performance of silicon–graphene negative electrodes in lithium batteries May 2023 Journal of Materials Science: Materials in ...
Progress, challenge and perspective of graphite-based anode materials for lithium batteries…
The Si-graphene composite electrode with excellent rate performance (2395.8 mAh·g −1 at 0.05·g −1;1727.3mah·g −1 at 10 A·g −1) ... High rate capability of graphite negative electrodes for lithium-ion batteries J. …
Novel LiFePO4/very-few-layer-graphene (LFP/VFLG) composites to improve structural and electrochemical properties of lithium-ion battery …
LiFePO 4 /Very-few-layer-graphene (LFP/VFLG) composites have been prepared using the sol-gel method for lithium-ion battery cathode. VFLG dominated by 1∼3 layers was obtained from an economical and environmentally benign …
Nanosilicon‐Based Thick Negative Composite Electrodes for Lithium Batteries with Graphene …
Reduced graphene oxide (rGO) is used as a conductive additive for nanosilicon‐based lithium battery anodes with the high active‐mass loading typically required for industrial applications. In contrast to conventional Si electrodes that use acetylene black (AcB) as an additive, the rGO system shows pronounced improvement of …
A 2D hybrid nanocomposite: a promising anode material for …
2.2.2. Preparation of h-BN/graphene/MoS 2 composites. The preparation of h-BN/graphene/MoS 2 composites has been reported previously, 61 but here a more …
Progress and prospects of graphene-based materials in lithium …
Reasonable design and applications of graphene-based materials are supposed to be promising ways to tackle many fundamental problems emerging in …
Graphene-based materials for supercapacitor electrodes – A review
3.3. 2D graphene film-based supercapacitors Graphene is considered as one of the most promising materials for the next generation flexible thin film supercapacitors due to its unique structural and property features, i.e., i) the two-dimensional structure can provide a large surface area, which serves as an extensive transport platform for …
Graphene-Based Electrodes for Lithium Ion Batteries
Graphene-Based Electrodes for Lithium Ion Batteries Ronghua Wang, Ronghua Wang Chinese Academy of Sciences, Shanghai Institute of Ceramics, State Key Laboratory of High Performance Ceramics and Superfine Microstructure, 1295 Dingxi Road, …
A high-capacity graphene/mesocarbon microbead composite anode for lithium-ion batteries …
The graphene/mesocarbon microbead (MCMB) composite is assessed as an anode material with a high capacity for lithium-ion batteries. The composite electrode exhibits improved cycling stability and rate capability, delivering a high initial charge/discharge capacity of 421.4 mA·h/g/494.8 mA·h/g as well as an excellent capacity …
Microstructured nitrogen-doped graphene-Sn composites as a negative electrode for high performance lithium …
Microstructured nitrogen-doped graphene-Sn composites as a negative electrode for high performance lithium-ion hybrid supercapacitors† Miguel Granados-Moreno a, Gelines Moreno-Fernández * a, Rosalía Cid a, Juan Luis Gómez-Urbano ab and Daniel Carriazo * ac a Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque …
Iron oxide/graphene composites as negative-electrode materials …
We synthesized Fe 2 O 3 /graphene composites by a hydrothermal method. The effect of varying the pH in the range pH = 8–12 on the properties of the composites and their …
Effect of Phosphorus-Doping on Electrochemical Performance of Silicon Negative Electrodes in Lithium-Ion Batteries
The effect of phosphorus (P)-doping on the electrochemical performance of Si negative electrodes in lithium-ion batteries was investigated. Field-emission scanning electron microscopy was used to observe changes in surface morphology. Surface crystallinity and the phase transition of Si negative electrodes before and after a charge–discharge cycle …
The application of graphene in lithium ion battery electrode materials …
The application of graphene in lithium ion battery electrode materials October 2014 SpringerPlus 3(1):585 DOI:10.1186 ... graphene composite material, the flexible mesh structure of graphene ...
Nanosilicon‐Based Thick Negative Composite Electrodes for Lithium Batteries with Graphene …
Request PDF | Nanosilicon‐Based Thick Negative Composite Electrodes for Lithium Batteries with Graphene as Conductive Additive | Reduced graphene oxide (rGO) is used as a conductive additive for ...
Enhanced Performance of Silicon Negative Electrodes Composited with Titanium Carbide Based MXenes for Lithium-Ion Batteries
Silicon is considered as one of the most promising candidates for the next generation negative electrode (negatrode) materials in lithium-ion batteries (LIBs) due to its high theoretical specific capacity, appropriate lithiation potential range, and fairly abundant resources. However, the practical application of silicon negatrodes is hampered …
Toward the Improvement of Silicon-Based Composite Electrodes via an In-Situ Si@C-Graphene Composite Synthesis for Li-Ion Battery …
Using Si as anode materials for Li-ion batteries remain challenging due to its morphological evolution and SEI modification upon cycling. The present work aims at developing a composite consisting of carbon-coated Si nanoparticles (Si@C NPs) intimately embedded in a three-dimensional (3D) graphene hydrogel (GHG) architecture …
A high-performance silicon/carbon composite as anode material for lithium ion batteries …
conductivity and the expands and contracts in volume of Si/C composite anodes in lithium ion batteries, ... with mass of 1440 g: 7.5 g: 22.5 g: 30 g onto the aluminum foil. The negative electrode was prepared by …
Preparation and electrochemical performance of …
Silicon/graphene composites are recently received more attention as promising negative electrode materials for the next generation lithium-ion batteries (LIBs) …
Tin-graphene tubes as anodes for lithium-ion batteries …
Supplementary Fig. 6 shows the SEM and TEM images of a SnO 2 /DGT composite. The graphene tubes maintain their tubular ... V. L. Alloy negative electrodes for Li-ion batteries. Chem. Rev . 114 ...
The role of graphene in rechargeable lithium batteries: Synthesis, …
Cheng et al. [127] designed a fluorinated graphene-modified lithium negative electrode (LFG) for LOBs. The as-prepared LFG with the introduction of 3 wt% FG led to a remarkable increase in the rate capability and cycling life of lithium electrodes.
Nanosilicon-based thick negative composite electrodes for lithium …
https://onlinelibrary.wiley /doi/10.1002/aenm.201300330. Abstract. Reduced graphene oxide (rGO) is used as a conductive additive for nanosilicon-based lithium battery …
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