Performance of Lithium Ion Battery with Graphene Microstructure in Cathode

Ye, Zhanqiang

doi:10.1088/1742-6596/2378/1/012030

Cited by 2 publications

(1 citation statement)

References 22 publications

(22 reference statements)

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“…The inclusion of GO is beneficial for maintaining material stability and enhancing the diffusion coefficient of lithium ions. The graphitization level of graphene oxide facilitates electron transfer, thereby increasing the electrical conductivity of the composite material [4,13,14]. To investigate the impact of GO modification on the electrochemical performance of the lithium ion battery cathode, GO was synthesized using Hummer's method and subsequently applied to the LiFePO4/C-GO composite.…”

Section: Figurementioning

confidence: 99%

Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

Hana,

Munasir

2023

J. Phys.: Conf. Ser.

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The need for energy storage is increasing rapidly along with technological development. Lithium ion batteries are one of the energy storages that are in great demand due to their high specific capacity and energy density, discharge voltage of 3.4 volts, and environmental friendliness. LiFePO4 is a lithium-ion battery cathode material with a high specific capacity of 170 mAh/g and a discharge voltage of about 3.4 V, thermal stability, high energy density, environmentally friendly, and easy to obtain. However, it has low electrical conductivity and poor ion diffusion, which hinders energy storage. Carbon modification is a method that has the advantage of reducing particle size and preventing agglomeration in nanoparticles, so this method is widely researched to improve lithium ion diffusion coefficient and conductivity in lithium ion batteries. This study aims to describe the effect of GO modification on the characterization of LiFePO4/C-GO composite material and LiFePO4/C-GO composite material battery performance as a lithium ion battery cathode material. In this study, it can be seen that the addition of GO in LiFePO4 cathode material can improve battery performance. The LiFePO4/C-GO-10 cathode obtained the most effective results with the lowest Rct value of 95.21 Ω and the highest conductivity value of 14.3×10-6 S/cm indicating the best electron transport. The Rct value decreased with the addition of GO, and the conductivity value increased with the addition of GO.

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Section: Figurementioning

confidence: 99%

Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

Hana,

Munasir

2023

J. Phys.: Conf. Ser.

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The role of graphene in SnS₂@Graphene for rechargeable lithium batteries: A view from the electronic structure

Hao,

Tang,

Yang

et al. 2024

Mod. Phys. Lett. B

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Based on the first-principles study, the adsorption and electron transfer properties of Li atom at different sites of SnS2 monolayer, SnS2@Graphene 2D-nanocomposite are analyzed. The differential charge density and density of states (DOS) analysis show that the graphene substrate as an electron donor can change the 2D-nanocomposite from a semiconductor to a metal, and reduce the adsorption energy of Li atom by decreasing the charge transferring from Li atom to SnS2. This indicates that graphene substrate is beneficial for improving the performance of SnS2@Graphene. Meanwhile, the Li atoms tend not to cluster on the SnS2@Graphene 2D-nanocomposite, which is useful to prolong the lifespan of the SnS2@Graphene. The functionality of graphene in SnS2@Graphene 2D-nanocomposite is proved by other electron donor substrates, such as a two-H-atom model and a Sn (111) substrate model. All the results indicate that the graphene, as an electron donor in SnS2@Graphene 2D-nanocomposite, plays a key role in improving the performance of SnS2 in rechargeable lithium batteries.

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Performance of Lithium Ion Battery with Graphene Microstructure in Cathode

Cited by 2 publications

References 22 publications

Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

The role of graphene in SnS₂@Graphene for rechargeable lithium batteries: A view from the electronic structure

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Performance of Lithium Ion Battery with Graphene Microstructure in Cathode

Cited by 2 publications

References 22 publications

Study of Performance Graphene Oxide Modification of LiFePO4/C Material for The Cathode of Li-Ion Batteries

Study of Performance Graphene Oxide Modification of LiFePO4/C Material for The Cathode of Li-Ion Batteries

The role of graphene in SnS2@Graphene for rechargeable lithium batteries: A view from the electronic structure

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Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

Study of Performance Graphene Oxide Modification of LiFePO₄/C Material for The Cathode of Li-Ion Batteries

The role of graphene in SnS₂@Graphene for rechargeable lithium batteries: A view from the electronic structure