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
In situ-formed nitrogen-doped carbon/silicon-based materials
The current state-of-the-art negative electrode technology of lithium-ion batteries (LIBs) is carbon-based (i.e., synthetic graphite and natural graphite) and represents >95% of the negative electrode market [1].Market demand is strongly acting on LIB manufacturers to increase the specific energy and reduce the cost of their products [2].Therefore, identifying
Si particle size blends to improve cycling performance as negative
Silicon (Si) negative electrode has high theoretical discharge capacity (4200 mAh g-1) and relatively low electrode potential (< 0.35 V vs. Li + / Li) [3]. Furthermore, Si is one of the promising negative electrode materials for LIBs to replace the conventional graphite (372 mAh g-1) because it is naturally abundant and inexpensive [4]. The
Materials of Tin-Based Negative Electrode of Lithium-Ion Battery
Abstract Among high-capacity materials for the negative electrode of a lithium-ion battery, Sn stands out due to a high theoretical specific capacity of 994 mA h/g and the presence of a low-potential discharge plateau. However, a significant increase in volume during the intercalation of lithium into tin leads to degradation and a serious decrease in capacity. An
The synergistic effects of combining the high energy mechanical
In the past decades, much effort has been paid to developing high performance negative electrode materials. Silicon is one promising negative electrode material due to its high theoretical specific capacity of 4200 mAh g −1 [4], low discharge voltage (∼0.4 V versus Li + /Li) and highly abundant resource.
Review: High-Entropy Materials for
There has been considerable research on two or three multicomponent alloys with Li for the negative electrode HEAs offer new opportunities to solve the challenges
Research progress on silicon-based materials used as negative
Silicon-carbon (S/C) composites, as a new type of anode material in lithium-ion batteries, combine the advantages of both silicon and carbon, aiming at solving the problems existing in
Silicon-Based Negative Electrode for High-Capacity
Abstract The silicon-based materials were prepared and examined in lithium cells for high-capacity lithium-ion batteries. Among the
Efficient electrochemical synthesis of Cu3Si/Si hybrids as negative
The silicon-based negative electrode materials prepared through alloying exhibit significantly enhanced electrode conductivity and rate performance, demonstrating excellent
Phosphorus-doped silicon nanoparticles as high performance LIB
In this work, a series of phosphorus (P)-doped silicon negative electrode materials (P-Si-34, P-Si-60 and P-Si-120) were obtained by a simple heat treatment method,
First principles studies of silicon as a negative electrode material
An investigation of Li–Si alloys using density functional theory is presented. Various calculation methods and pseudopotentials are analyzed to best reproduce the potential versus composition curve of a Li/LixSi electrochemical cell at high temperature using the experimentally observed Li–Si phases. Total energy calculations, structural optimizations, and bulk modulus estimations
First principles studies of silicon as a negative electrode material
An investigation of Li–Si alloys using density functional theory is presented. Various calculation methods and pseudopotentials are analyzed to best reproduce the potential versus composition curve of a Li/LixSi electrochemical cell at high temperature using the experimentally observed Li–Si phases. Total energy calculations, structural optimizations, and
Si-decorated CNT network as negative electrode for lithium-ion battery
We have developed a method which is adaptable and straightforward for the production of a negative electrode material based on Si/carbon nanotube (Si/CNTs) composite for Li-ion batteries. Comparatively inexpensive silica and magnesium powder were used in typical hydrothermal method along with carbon nanotubes for the production of silicon nanoparticles.
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
1. A negative active material for a lithium secondary battery comprising a silicon-carbon composite including a core including crystalline carbon and silicon particles and an amorphous carbon-containing coating layer disposed on a surface of the core, wherein the negative active material comprises a silicon oxide formed on a surface of the silicon particle, and an oxide of
Design of Electrodes and Electrolytes for Silicon‐Based Anode Lithium
There is an urgent need to explore novel anode materials for lithium-ion batteries. Silicon (Si), the second-largest element outside of Earth, has an exceptionally high specific capacity (3579 mAh g −1), regarded as an excellent choice for the anode material in high-capacity lithium-ion batteries. However, it is low intrinsic conductivity and
Inorganic materials for the negative electrode of lithium-ion batteries
In this pioneering concept, known as the first generation "rocking-chair" batteries, both electrodes intercalate reversibly lithium and show a back and forth motion of their lithium-ions during cell charge and discharge The anodic material in these systems was a lithium insertion compound, such as Li x Fe 2 O 3, or Li x WO 2. The basic requirement of a good
Crystalline-Amorphous Core-Shell Silicon Nanowires for High
Silicon-based lithium-ion battery negative electrodes represent one of graphite''s most promising replacements. However, the enhanced capacity and unique Li+ storage method have raised the demands
The microstructure matters: breaking down the barriers with single
CITIIC REPORTS 3112 DI 10.1038srep3112 1 The microstructure matters: breaking down the barriers with single crystalline silicon as negative electrode in Li-ion
(PDF) Silicon nanowires as negative electrode for lithium-ion
However, to power more demanding applications, such as electric vehicles, Li-ion batteries with higher specific energy or energy density are required.1,2 This can be achieved by utilizing electrode materials that have a higher specific capacity than current com-mercial electrode materials.35 Alloying negative electrode mate-rials, which react with lithium at low potentials
Preparation and electrochemical performance of silicon
In addition, the lower discharge platform (0.1 V) helps to avoid the formation of lithium dendrites on the electrode surface. However, silicon negative electrode materials suffer from serious volume effect (∼300%) in the Li-ion charge-discharge process, leading to subsequent pulverization of silicon [3, 11, 13]. It may also cause the loss of
Prelithiated Carbon Nanotube‐Embedded Silicon‐based Negative Electrodes
During prelithiation, MWCNTs-Si/Gr negative electrode tends to form higher atomic fractions of lithium carbonate (Li 2 CO 3) and lithium alkylcarbonates (RCO 3 Li) as compared to Super P-Si/Gr negative electrode (Table 4). This may suggest that more electrolyte is decomposed on MWCNTs due to the high surface area, resulting in enhanced (electro)
A composite electrode model for lithium-ion
Modified Pseudo-2D battery model for the composite negative electrode of graphite and silicon. The EDS image is for the surface of the negative electrode from Chen et al. [4].
Advancements in Silicon Anodes for Enhanced Lithium‐Ion
6 天之前· Silicon (Si)-based materials have emerged as promising alternatives to graphite anodes in lithium-ion (Li-ion) batteries due to their exceptionally high theoretical capacity.
Electrochemical Synthesis of Multidimensional
Silicon (Si) is a promising negative electrode material for lithium-ion batteries (LIBs), but the poor cycling stability hinders their practical application. Developing favorable Si nanomaterials is expected to improve
ACS Applied Materials & Interfaces
Because of their high specific capacity and rather low operating potential, silicon-based negative electrode materials for lithium-ion batteries have been the subject of
Silicon as Negative Electrode Material for Lithium-ion Batteries
Request PDF | On Jan 1, 2010, Fredrik Lindgren published Silicon as Negative Electrode Material for Lithium-ion Batteries | Find, read and cite all the research you need on ResearchGate
A critical review of silicon nanowire
T. Yoon, et al., Capacity Fading Mechanisms of Silicon Nanoparticle Negative Electrodes for Lithium Ion Batteries, J Graphene Enhances Li Storage Capacity of Porous Single
Silicon nanowires as negative electrode for lithium-ion
With a very high theoretical capacity (4200 mAh g −1) at low voltage, silicon is presented as a very interesting potential candidate as negative electrode for lithium-ion
Impact of the Crystalline Li 15 Si 4 Phase on the Self-Discharge
Because of their high specific capacity and rather low operating potential, silicon-based negative electrode materials for lithium-ion batteries have been the subject of extensive research over
First principles studies of silicon as negative electrode material
[12][13][14][15] Chevrier et al have reported initially electrochemical and mechanical information of Li-Si crystalline compound for silicon anode using density functional theory (DFT) calculation
Layered amorphous silicon as negative electrodes in lithium
While used as an active electrode material in a lithium battery, the obtained silicon nanorods anode exhibits a remarkable lithium storage performance: under the current density of 0.5 C, it could
Large-scale preparation of amorphous silicon materials for high
6 天之前· Electrochemical synthesis of multidimensional nanostructured silicon as a negative electrode material for lithium-ion battery ACS Nano, 16 ( 2022 ), pp. 7689 - 7700, 10.1021/acsnano.1c11393 View in Scopus Google Scholar
The microstructure matters: breaking down the barriers with single
In the chase for higher energy densities the specific capacity of the anode material in lithium-ion batteries (LIBs) plays a major role. While graphite with its specific charge density of 372 mAhg −1, referring to the formation of LiC 6 1, represents the today''s state-of-the art anode material of most of the commercially available LIBs, the capability of silicon to take
First principles studies of silicon as negative electrode material for
A double-ζ plus polarization basis set was used and they observed that lithium migration in crystalline silicon between tetrahedral interstitial sites has an energy barrier of
Hierarchical porous silicon oxycarbide as a stable anode material
Rechargeable lithium-ion batteries (LIBs) have attracted widespread attention due to their high energy density, long cycle life, and environment friendliness, making them widely used in electronics and electric vehicles [[1], [2], [3]].As battery technology advances, there is an increasing demand for high-performance electrode materials to optimize battery performance
The microstructure matters: breaking down the barriers with single
This work shows how 3D patterned Si wafers, prepared by the sophisticated techniques from semiconductor industry, are to be electrochemically activated to overcome limitations and to leverage their full potential being reflected in stable charge capacities and high Coulomb efficiencies. Silicon-based microelectronics forms a major foundation of our modern society.
Negative electrode materials for high-energy density Li
In the search for high-energy density Li-ion batteries, there are two battery components that must be optimized: cathode and anode. Currently available cathode materials for Li-ion batteries, such as LiNi 1/3 Mn 1/3 Co 1/3 O 2 (NMC) or LiNi 0.8 Co 0.8 Al 0.05 O 2 (NCA) can provide practical specific capacity values (C sp) of 170–200 mAh g −1, which produces
6 FAQs about [Crystalline silicon material for lithium battery negative electrode]
Is silicon a good negative electrode material for lithium ion batteries?
Silicon (Si) is a promising negative electrode material for lithium-ion batteries (LIBs), but the poor cycling stability hinders their practical application. Developing favorable Si nanomaterials i...
Can silicon improve cyclability of lithium-ion batteries?
Silicon (Si) is a promising negative electrode material for lithium-ion batteries (LIBs), but the poor cycling stability hinders their practical application. Developing favorable Si nanomaterials is expected to improve their cyclability.
What are the advantages of silicon based negative electrode materials?
The silicon-based negative electrode materials prepared through alloying exhibit significantly enhanced electrode conductivity and rate performance, demonstrating excellent electrochemical lithium storage capability. Ren employed the magnesium thermal reduction method to prepare mesoporous Si-based nanoparticles doped with Zn .
What type of electrode does a lithium ion cell use?
Conventional Li-ion cells use a layered lithium transition metal oxide positive electrode (e.g. LiCoO 2) and a graphite negative electrode. When a Li-ion cell is charged, Li + ions deintercalate from the cathode and simultaneously intercalate into the graphite electrode.
Can Si nanomaterials be used as negative electrode materials for LIBS?
Besides, when serving as negative electrode materials for LIBs, Si nanotubes exhibit better Li storage performance than Si nanoparticles and Si nanowires, showing a capacity of 3044 mAh g –1 at 0.20 A g –1 and 1033 mAh g –1 after 1000 cycles at 1 A g –1. This work provides a controllable approach for the synthesis of Si nanomaterials for LIBs.
Can silicon be used in lithium-ion battery anodes?
The substantial volume expansion of silicon (approximately 400%) and inadequate electrical contact during the lithium-insertion process present constraints on its utility in the prospective generation of optimal lithium-ion battery anodes. Numerous innovative strategies have been proposed by researchers to address this issue , .