SiOx/C anodes with high initial coulombic efficiency through the synergy effect of pre-lithiation and fluoroethylene carbonate for lithium-ion batteries

Jiang, Fuyang; Sun, Yi; Zhang, Kuanxin; Liu, Yongchao; Feng, Xuyong; Xiang, Hongfa

doi:10.1016/j.electacta.2021.139315

Cited by 32 publications

(20 citation statements)

References 46 publications

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“…1(a). The sharp and intense peaks at 31.6°, 37.2°, 45.3°, 56.1°, and 65.6° were assigned to the pure face‐centered‐cubic phase of spinel‐structured Co 3 O 4 21 . This result indicates the good crystallization of the Co 3 O 4 /carbon composite.…”

Section: Resultsmentioning

confidence: 85%

High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

Xie

Yang

Cai³

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Metal oxides suffer from huge volume changes and poor electrical conductivity as anode materials in lithium‐ion batteries. Many nanostructures have been designed to improve the electrochemical performance of metal oxide anodes. RESULTS In this work, Co3O4@carbon composites are prepared via hydrothermal reaction. The as‐prepared Co3O4@carbon composites displayed good lithium storage performance and excellent cycling stability. The Co3O4@carbon anode showed a high capacity of 986 mAh/g after 100 cycles at 0.2 C. CONCLUSION The superior electrochemical performance of the Co3O4@carbon anode is attributed to its unique hybrid structure, which can improve electrical conductivity and act as a buffer for the volume change during electrochemical reactions. © 2022 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 85%

High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

Xie

Yang

Cai³

et al. 2022

J of Chemical Tech & Biotech

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“…They proposed to use the electrical conductivity as a probe to monitor the reagent solvation state and prelithiation degree (Figure 5e), thereby enabling a controlled chemical prelithiation. [59] The Li-Bp reagent was also used to prelithiate SnO 2 , [60,61] hard carbon, [62] and SiO x /carbon microparticles, [63,64] all exhibiting high initial CE and better cycling performance. However, the Li-Bp/THF reagent failed to fully prelithiate those anode materials with lower lithiation potentials, such as Al, Si, and graphite.…”

Section: Liquid Li-containing Reagentsmentioning

confidence: 99%

Prelithiation Bridges the Gap for Developing Next‐Generation Lithium‐Ion Batteries/Capacitors

Cao

et al. 2022

Small Methods

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The ever‐growing market of portable electronics and electric vehicles has spurred extensive research for advanced lithium‐ion batteries (LIBs) with high energy density. High‐capacity alloy‐ and conversion‐type anodes are explored to replace the conventional graphite anode. However, one common issue plaguing these anodes is the large initial capacity loss caused by the solid electrolyte interface formation and other irreversible parasitic reactions, which decrease the total energy density and prevent further market integration. Prelithiation becomes indispensable to compensate for the initial capacity loss, enhance the full cell cycling performance, and bridge the gap between laboratory studies and the practical requirements of advanced LIBs. This review summarizes the various emerging anode and cathode prelithiation techniques, the key barriers, and the corresponding strategies for manufacturing‐compatible and scalable prelithiation. Furthermore, prelithiation as the primary Li+ donor enables the safe assembly of new‐configured “beyond LIBs” (e.g., Li‐ion/S and Li‐ion/O2 batteries) and high power‐density Li‐ion capacitors (LICs). The related progress is also summarized. Finally, perspectives are suggested on the future trend of prelithiation techniques to propel the commercialization of advanced LIBs/LICs.

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“…The ICE of SiO x can be significantly improved by prelithiation, however, unstable and incomplete SEI formed on the prelithiation anode will still lead to faster capacity fading. In 2021, Jiang et al [159] introduced fluoroethylene carbonate (FEC) in the prelithiation process (Figure 5n). Through the synergistic effect of prelithiation and fluoroethylene carbonate reduction, a dense and stable LiF-rich SEI layer was formed in situ on the surface of the prelithiated SiO x anode.…”

Section: Solution Chemical Prelithiationmentioning

confidence: 99%

How to Promote the Industrial Application of SiO_x Anode Prelithiation: Capability, Accuracy, Stability, Uniformity, Cost, and Safety

Wang

et al. 2022

Advanced Energy Materials

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Figure 2. a) The galvanostatic discharge-charge voltage profiles. b,c) Variation in Li-diffusion coefficient of (b) Si and (c) SiO depending on Li-content (x) in Li x Si measured by EIS at 25 °C.Reproduced with permission. [39] Copyright 2019, Elsevier B.V. d) The first cycle profiles for all the SiO x electrodes fabricated by solvent-free method. e) Cycling behavior of SiO x with different oxygen contents and particle sizes. Reproduced with permission. [104] Copyright 2002, Elsevier B.V. f) Comparison of the ideal energy density (blue) and measured energy density of the full cells (gray) using each anode. The energy density is calculated on the basis of the total mass of active materials in both electrodes. g) Charge-discharge voltage profiles of full cells composed of an NMC532 cathode and each anode for initial three cycles. The specific capacity is based on the mass of cathode active material. Reproduced with permission. [112] Copyright 2021, Journal of the American Chemical Society. h) Schematic diagram of the respective advantages of Si and SiO x . i) Evaluation of several methods to improve Initial Coulombic efficiency of SiO x anodes.

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SiOx/C anodes with high initial coulombic efficiency through the synergy effect of pre-lithiation and fluoroethylene carbonate for lithium-ion batteries

Cited by 32 publications

References 46 publications

High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

Prelithiation Bridges the Gap for Developing Next‐Generation Lithium‐Ion Batteries/Capacitors

How to Promote the Industrial Application of SiO_x Anode Prelithiation: Capability, Accuracy, Stability, Uniformity, Cost, and Safety

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SiOx/C anodes with high initial coulombic efficiency through the synergy effect of pre-lithiation and fluoroethylene carbonate for lithium-ion batteries

Cited by 32 publications

References 46 publications

High performance of Co3O4@carbon composites as anodes for Lithium‐ion batteries

High performance of Co3O4@carbon composites as anodes for Lithium‐ion batteries

Prelithiation Bridges the Gap for Developing Next‐Generation Lithium‐Ion Batteries/Capacitors

How to Promote the Industrial Application of SiOx Anode Prelithiation: Capability, Accuracy, Stability, Uniformity, Cost, and Safety

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Product

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High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

High performance of Co₃O₄@carbon composites as anodes for Lithium‐ion batteries

How to Promote the Industrial Application of SiO_x Anode Prelithiation: Capability, Accuracy, Stability, Uniformity, Cost, and Safety