Silicon/graphene composites are recently received more attention as promising negative electrode materials for the next generation lithium-ion batteries (LIBs) due to the synergistic effect of silicon and graphene.
This thorough review examines developments in improving the electrochemical performance of silicon and graphene within the context of lithium ion batteries. The focus lies on strategies for designing and synthesizing composite materials that incorporate silicon particularly when combined with graphene.
Additionally, the interlayer deposition of graphene is reduced; the transmission distance between electrons and lithium ions is shortened; the conductivity of the electrode material is improved; and the electrode possesses stable mechanical properties, excellent rate performance, and excellent cycle stability.
The conductive nature of the graphene matrix, coupled with the high capacity of silicon, allows for efficient electron transport and enables the battery to deliver high power outputs without compromising cycling stability or overall performance.
Si-based lithium-ion battery anodes. Refs. Graphene has been clearly identified as one of the candidate to compete with the dominating graphitic material for manufacturing anode electrodes. Graphene is a 2D material that is composed of a single or few atomic layers of sp 2 bonded hexagonal carbon.
Currently, Graphite (Gr) presents to be industry-standard negative electrode material in LIBs owing to its structural stability and low volume changes (≤ 10%) during charge–discharge process, suitable operating potential (≤ 0.2 V vs. Li/Li +) and reasonable ionic and electronic conductivity. [ 3]
Synthesis and Structural Design of Graphene, Silicon and Silicon…
When incorporated into anode materials, graphene serves as an outstanding conductive network, facilitating rapid electron transport throughout the electrode, thus enhancing the overall performance of the battery. Furthermore, unique structural properties of graphene allow the accommodation of volume expansion during lithiation, effectively ...
Learn More
Optimization of graphene dose for improved electrochemical
Silicon is a promising anode for LIBs owing to its high theoretical capacity and low voltage profile, which is roughly ten times greater than that of carbonaceous materials like …
Learn More
Preparation and electrochemical performances for silicon-carbon …
Silicon-carbon materials have broad development prospects as negative electrode materials for lithium-ion batteries. In this paper, polyvinyl butyral (PVB)-based carbon-coated silicon (Si/C) composite materials were prepared using PVB-coated Si particles and then high-temperature carbonization methods. Furthermore, the PVB-based carbon-coated …
Learn More
Surface-Coating Strategies of Si-Negative Electrode Materials in …
Si is a negative electrode material that forms an alloy via an alloying reaction with lithium (Li) ions. During the lithiation process, Si metal accepts electrons and Li ions, becomes electrically neutral, and facilitates alloying. Conversely, during delithiation, Li ions are extracted from the alloy, reverting the material to its original Si ...
Learn More
The role of graphene in rechargeable lithium batteries: Synthesis ...
Graphene production techniques include (i) self-assembly of ordered nanocomposites, (ii) surface re-engineering of graphene nanosheets with surfactant species, (iii) coating/deposition of metal, metal oxides, and other electrochemically active materials on graphene nanosheets, and (iv) direct fabrication of graphene nanosheets into porous …
Learn More
Optimization of graphene dose for improved electrochemical
Silicon is a promising anode for LIBs owing to its high theoretical capacity and low voltage profile, which is roughly ten times greater than that of carbonaceous materials like graphite, pyrolytic carbon, and mesophase pitch (around 372 mAh.g −1) for the Li 15 Si 4 phase at ambient temperature [7].
Learn More
Design-Considerations regarding Silicon/Graphite and …
The expansion tolerance E required for the negative electrode material is the same in all cases and the increase is roughly linear with the amount of silicon added (blue line). Average potentials ...
Learn More
Progress, challenge and perspective of graphite-based anode materials …
In the earliest days, lithium metal was directly used as the anode of the battery, and materials such as ... used the properties of graphene to combine with ultra-thin silicon nanosheets to avoid particle damage while improving the conductivity and ion diffusion rate of the material. The Si-graphene composite electrode with excellent rate performance (2395.8 mAh·g …
Learn More
Preparation and electrochemical performance of silicon@graphene …
Silicon/graphene composites are recently received more attention as promising negative electrode materials for the next generation lithium-ion batteries (LIBs) due to the synergistic effect of silicon and graphene.
Learn More
Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative …
Currently, Graphite (Gr) presents to be industry-standard negative electrode material in LIBs owing to its structural stability and low volume changes (≤ 10%) during …
Learn More
High-Performance Silicon Battery Anodes Enabled by …
This engineered graphene bulk assemblies not only create a robust bicontinuous network for rapid transport of both electrons and lithium ions throughout the electrode even at high material mass loading but also allow …
Learn More
Graphene enhanced silicon/carbon composite as …
In our report, carbon/graphene double-layer coated-silicon composite (Si/carbon/graphene, Si/C/G) is prepared via a facile hydrothermal process. It is demonstrated that the Si/C/G composite displayed an …
Learn More
Synthesis and Structural Design of Graphene, Silicon and …
When incorporated into anode materials, graphene serves as an outstanding conductive network, facilitating rapid electron transport throughout the electrode, thus enhancing the overall …
Learn More
Surface-Coating Strategies of Si-Negative Electrode …
Silicon (Si) is recognized as a promising candidate for next-generation lithium-ion batteries (LIBs) owing to its high theoretical specific capacity (~4200 mAh g−1), low working potential (<0.4 V vs. Li/Li+), and …
Learn More
Characteristics and electrochemical performances of silicon/carbon ...
Therefore, in this study, a binder-free silicon nanoparticle/carbon nanofiber/graphene composite film was fabricated as an self-supporting negative electrode material. Carbon nanofibers...
Learn More
Silicon-Reduced Graphene Oxide Composite as Negative …
Less defective and nitrogen doped Si/RGO composites have a better electrochemical behavior as an active material of negative electrode for lithium-ion batteries. …
Learn More
Surface-Coating Strategies of Si-Negative Electrode …
Si is a negative electrode material that forms an alloy via an alloying reaction with lithium (Li) ions. During the lithiation process, Si metal accepts electrons and Li ions, becomes electrically neutral, and facilitates …
Learn More
Preparation and electrochemical performance of silicon@graphene …
Silicon/graphene composites are recently received more attention as promising negative electrode materials for the next generation lithium-ion batteries (LIBs) due to the synergistic effect of silicon and graphene. Silicon can provide high specific charge capacity, relatively low discharge potential, environmental compatibility and ...
Learn More
Silicon-Reduced Graphene Oxide Composite as Negative Electrode …
A composite consisting of silicon nanoparticles and reduced graphene oxide nanosheets (Si/RGO) was studied as a promising material for the negative electrode of lithium-ion batteries. Commonly ...
Learn More
Characteristics and electrochemical performances of silicon…
Therefore, in this study, a binder-free silicon nanoparticle/carbon nanofiber/graphene composite film was fabricated as an self-supporting negative electrode material. Carbon nanofibers...
Learn More
Silicon-Reduced Graphene Oxide Composite as Negative Electrode …
Less defective and nitrogen doped Si/RGO composites have a better electrochemical behavior as an active material of negative electrode for lithium-ion batteries. The discharge capacity of electrodes based on Si/RGO nanocomposites amounted to 437 mA h g–1 without polymer binder and 1192 mA h g–1 with CMC as a binder.
Learn More
Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative Electrodes ...
Currently, Graphite (Gr) presents to be industry-standard negative electrode material in LIBs owing to its structural stability and low volume changes (≤ 10%) during charge–discharge process, suitable operating potential (≤ 0.2 V vs. Li/Li +) and reasonable ionic and electronic conductivity.
Learn More
