Understanding the effect of p-, n-type dopants and vinyl carbonate electrolyte additive on electrochemical performance of Si thin film anodes for lithium-ion battery

Mukanova, Aliya; Serikkazyyeva, Assel; Nurpeissova, Arailym; Kim, Sung Soo; Myronov, Maksym; Bakenov, Zhumabay

doi:10.1016/j.electacta.2019.135179

Cited by 16 publications

(15 citation statements)

References 48 publications

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“…Especially, due to the large specific surface area of silicon nanostructures treatment, these cells show high irreversible reaction during the first discharge process and low ICE. As we known, while the potential of anode electrode (vs Li 0 /Li + ) is close to 0.8 V, the part of lithium ions from cathode can been consumed with solvent and silicon species to form SEI film, including the inorganic and organic lithium compounds, such as lithium fluoride (LiF), lithium ester et al [12][13][14] As we known, many silicon nanoparticles often only exhibits the low ICE about 50 %. For large size, the ICE can obtain high value above 60 %.…”

Section: Introductionmentioning

confidence: 99%

Lithium Difluorophosphate as an Effective Additive for Improving the Initial Coulombic Efficiency of a Silicon Anode

Zhu

Lao

et al. 2020

ChemElectroChem

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Silicon anodes usually endure low initial coulombic efficiency (ICE) in applications for lithium-ion batteries (LIBs), although the volume expansion and structural stability has been greatly improved under many efforts in the recent years. During the first charge and discharge, a large number of lithium ions can participate in the formation of a solid electrolyte interface (SEI) on anode surface, such as LiF, Li 2 CO 3 and many Li-based compounds, resulting in low efficiency, particularly as the nanosized silicon is widely applied to solve the volume effect. Herein, we find that the lithium difluorophosphate (LiPO 2 F 2 , LiDFP) additive shows some special properties, which greatly improve the reversible capacity in the first discharge. The silicon nanoparticles can deliver an ICE of 70.6 % with 2 wt% LiDFP in the electrolyte, which is increased by 17.7 % compared with the cell without LiDFP (ca. 52.9 %). By comparing the XPS and NMR results, it appears the LiDFP may reduce the number of lithium ions involved in the SEI reaction in the electrolyte during the first discharge, and thus the ICE can be improved.

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Section: Introductionmentioning

confidence: 99%

Lithium Difluorophosphate as an Effective Additive for Improving the Initial Coulombic Efficiency of a Silicon Anode

Zhu

Lao

et al. 2020

ChemElectroChem

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“…For the sake of completeness, reports where FEC is utilized as an electrolyte additive can be found in references [ 45–47,51–55,60–62,67,69,73,75–77,92–125 ] and reports utilizing VC as electrolyte additive can be found in references. [ 40,45,47–49,69,71,73,75–77,98,99,102–104,106,115,119,122,123,126–132 ]…”

Section: Electrolyte Interfacing Si‐based Electrodementioning

confidence: 99%

“…For the sake of completeness, reports where FEC is utilized as an electrolyte additive can be found in references [45][46][47][51][52][53][54][55][60][61][62]67,69,73,[75][76][77] and reports utilizing VC as electrolyte additive can be found in references. [40,45,[47][48][49]69,71,73,[75][76][77]98,99,[102][103][104]106,115,119,122,123,[126][127][128][129][130][131][132] Methylene Ethylene Carbonate (MEC): Nguyen and Lucht studied MEC as electrolyte additive in different Si-based systems. When used in an amount of 10% in conventional electrolyte for Si/C composite electrodes, MEC was able to improve the cycling performance by a very similar extent as FEC.…”

Section: Fluoroethylene Carbonate (Fec) and Vinylene Carbonate (Vc)mentioning

confidence: 99%

Interfacing Si‐Based Electrodes: Impact of Liquid Electrolyte and Its Components

Wölke

Sadeghi

Eshetu

et al. 2022

Adv Materials Inter

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As the demand for mobile energy storage devices has steadily increased during the past decades due to the rising popularity of portable electronics as well as the continued implementation of electromobility, energy density has become a crucial metric in the development of modern batteries. It was realized early on that the successful utilization of silicon as negative electrode material in lithium‐ion batteries would be a quantum leap in improving achievable energy densities due to the roughly ten‐fold increase in specific capacity compared to the state‐of‐the‐art graphite material. However, being an alloying type material rather than an intercalation/insertion type, silicon poses numerous obstacles that need to be overcome for its successful implementation as a negative electrode material with the most prominent one being its extreme volume changes on (de‐)lithiation. While, as of today, a plethora of different types of Si‐based electrodes have been reported, a universally common feature is the interface between Si‐based electrode and electrolyte. This review focuses on the knowledge gained thus far on the impact of different liquid electrolyte components/formulations on the interfaces and interphases encountered at Si‐based electrodes.

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“…[ 50–56 ] Therefore, conventional Si‐based full cells usually have limited energy densities, poor lifetime and operating security, which will restrict their further applications in daily life. [ 57,58 ] In order to develop high‐energy Si‐based full cells with superior lifetime and enhanced security, a comprehensive battery system theory needs to be established, including the structural optimization of Si, [ 59–63 ] SiO x , [ 64–66 ] and Si‐alloy [ 67–69 ] anode materials, the selection of cathode materials with high capacities and voltage limits, the design principles of promising electrolytes, [ 70–74 ] binders, [ 75–78 ] and separators, [ 79–81 ] as well as their applications in half and full cells (such as LiCoO 2 (LCO)||Si, [ 69,82 ] LiFePO 4 (LFP)||Si, [ 83,84 ] LiNi x Co y Mn z O 2 (NCM, x + y + z = 1)||Si, [ 85–87 ] and S||Li x Si [ 88,89 ] ). State‐of‐the‐art pre‐lithiation technology focuses on further improving the energy densities and lifetime of Si‐based full cells, due to its powerful ability to compensate for irreversible Li + consumption.…”

Section: Introductionmentioning

confidence: 99%

“…[50][51][52][53][54][55][56] Therefore, conventional Si-based full cells usually have limited energy densities, poor lifetime and operating security, which will restrict their further applications in daily life. [57,58] In order to develop high-energy Si-based full cells with superior lifetime and enhanced security, a comprehensive battery system theory needs to be established, including the structural optimization of Si, [59][60][61][62][63] SiO x , [64][65][66] and Si-alloy [67][68][69] anode materials, the selection of cathode materials with high capacities and voltage limits, the design principles of promising electrolytes, [70][71][72][73][74] binders, [75][76][77][78] and separators, [79][80][81] as well as their applications in half and full cells (such as LiCoO 2 (LCO)||Si, [69,82] LiFePO 4 (LFP)||Si, [83,84] LiNi x Co y Mn z O 2 (NCM,…”

mentioning

confidence: 99%

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

Guo

Dong

Wang

et al. 2021

Adv Funct Materials

107

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Lithium‐ion batteries (LIBs) have been occupying the dominant position in energy storage devices. Over the past 30 years, silicon (Si)‐based materials are the most promising alternatives for graphite as LIB anodes due to their high theoretical capacities and low operating voltages. Nevertheless, their extensive volume changes in battery operation causes the structural collapse of Si‐based electrodes, as well as severe side reactions. In this review, the preparation methods and structure optimizations of Si‐based materials are highlighted, as well as their applications in half and full cells. Meanwhile, the developments of promising electrolytes, binders and separators that match Si‐based electrodes in half and full cells have made great progress. Pre‐lithiation technology has been introduced to compensate for irreversible Li+ consumption during battery operation, thereby improving the energy densities and lifetime of Si‐based full cells. More importantly, almost all related mechanisms of Si‐based electrodes in half and full cells are summarized in detail. It is expected to provide a comprehensive insight on how to develop high‐performance Si‐based full cells. The work can help us understand what happens during the lithiation process, the primary causes of Si‐based half and full cells failure, and strategies to overcome these challenges.

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Understanding the effect of p-, n-type dopants and vinyl carbonate electrolyte additive on electrochemical performance of Si thin film anodes for lithium-ion battery

Cited by 16 publications

References 48 publications

Lithium Difluorophosphate as an Effective Additive for Improving the Initial Coulombic Efficiency of a Silicon Anode

Lithium Difluorophosphate as an Effective Additive for Improving the Initial Coulombic Efficiency of a Silicon Anode

Interfacing Si‐Based Electrodes: Impact of Liquid Electrolyte and Its Components

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

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