A carbon-covered silicon material modified by phytic acid with 3D conductive network as anode for lithium-ion batteries

Ou, Junke; Li, Bo; Deng, Haixin; Li, Kaiyang; Wang, Hao

doi:10.1016/j.apt.2022.103891

Cited by 10 publications

(2 citation statements)

References 58 publications

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“…The results show that after the analysis of electrochemical kinetics, nitrogen doped porous carbon (NDPC) still has high rate performance after 200 cycles at a current density of 1.86 A/g, and lithium ions can still maintain rapid transmission [5]. What's more, a promising negative material, silicon, which has high theoretical capacity, has drawn attentions by many researchers [6]. In order to improve the cycle life of lithium ion batteries, a feasible direct contact prelithiation method can successfully increase the initial capacity of the battery by about 10 % and the cycle life by about 150 % by changing the introduction of lithium content when using silicon-graphite composite anode materials [7].…”

Section: Introductionmentioning

confidence: 99%

Application of porous carbon nanoelectrode materials for lithium-ion batteries

Chen

2024

J. Phys.: Conf. Ser.

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In order to achieve carbon neutrality and gradually improve the current global warming environmental situation, the world’s major research teams are committed to developing lithium-ion batteries with better performance, trying to use in various new energy facilities, such as electric vehicles, which can effectively reduce polluting gas emissions. Nowadays, many electrode materials that can improve the performance of lithium-ion batteries have been continuously emerging, such as carbon nanotubes and silicon-based nanomaterials. However, carbon nanotube electrode materials have the disadvantages of high irreversible capacity, voltage lag and high manufacturing cost, while silicon-based nanomaterials also have the drawbacks of volume expansion and poor electrical conductivity. Based on the mature research of carbon materials, extensive raw material sources and large reserves, completely non-toxic and low comprehensive cost, this research analyzes three new porous carbon nanoelectrode materials with high development potential, and shows their electrochemical performance advantages, such as high charge-discharge specific capacity, excellent rate performance, and low charge transfer impedance.

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Section: Introductionmentioning

confidence: 99%

Application of porous carbon nanoelectrode materials for lithium-ion batteries

Chen

2024

J. Phys.: Conf. Ser.

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“…Firstly, silicon has a poorer conductivity, which makes it challenging for the current collector to draw current. Secondly, silicon experiences a significant change of up to 300% during the alloying and de-alloying reaction with Li + ions [20][21][22]. The volume expansion of silicon can result in a constant generation and destruction of the solid electrolyte interface (SEI) layer, which consumes a lot of electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Properties of Anode Electrodes for Lithium–Ion Batteries Manufactured Using Cu, and Si-Coated Carbon Nanowall Materials

et al. 2023

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The fabrication of high-capacity, binder-free Li–ion battery anodes using a simple and efficient manufacturing process was reported in this research. The anode material for lithium–ion batteries utilized is a combination of two-dimensional (2D) carbon nanowalls (CNWs) and Cu nanoparticles (improved rate performance and capacity retention) or Si (high capacity) nanoparticles. A methane (CH4) and hydrogen (H2) gas mixture was employed to synthesize CNWs on copper foil through microwave plasma-enhanced chemical vapor deposition (PECVD). The Cu or Si nanoparticles were then deposited on the CNW surface using an RF magnetron sputtering equipment with four-inch targets. To analyze the electrochemical performance of the LIBs, CR2032 coin-type cells were fabricated using anode materials based on CNWs and other components. It was confirmed that the Cu−CNW demonstrates improved rate performance, increased specific capacity, and capacity retention compared with traditional anodes. Additionally, CNW combined with Si nanoparticles has enhanced the capacity of LIB and minimized volume changes during LIB operation.

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Preparation and electrochemical performances for silicon-carbon ternary anode materials with artificial graphite as conductive skeleton

Xu,

Wang,

2024

J Solid State Electrochem

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A carbon-covered silicon material modified by phytic acid with 3D conductive network as anode for lithium-ion batteries

Cited by 10 publications

References 58 publications

Application of porous carbon nanoelectrode materials for lithium-ion batteries

Application of porous carbon nanoelectrode materials for lithium-ion batteries

Investigation of the Properties of Anode Electrodes for Lithium–Ion Batteries Manufactured Using Cu, and Si-Coated Carbon Nanowall Materials

Preparation and electrochemical performances for silicon-carbon ternary anode materials with artificial graphite as conductive skeleton

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