Solid-state silicon anode with extremely high initial coulombic efficiency

Huang, Yonglin; Shao, Bowen; Wang, Yan; Han, Fudong

doi:10.1039/d2ee04057c

Cited by 50 publications

(48 citation statements)

References 67 publications

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“…Reproduced with permission. [ 114 ] Copyright 2023, Royal Society of Chemistry. ICE, initial Coulombic efficiency; LBHI, 3LiBH 4 ‐LiI; LPS, 75Li 2 S‐25P 2 S 5 ; LPSI, 70(0.75Li 2 S‐0.25P 2 S 5 )‐30LiI); NCA, LiNi 0.8 Co 0.15 Al 0.02 O 2 ; VGCF, vapor grown carbon fiber.…”

Section: Si‐ssbs Based On Other Ssesmentioning

confidence: 99%

“…[ 117 ] This is one of the important reasons that most researchers are interested in the development of inorganic (sulfides) SSE‐based Si‐SSBs. Recently, Huang et al [ 114 ] systematically investigated the difference in the electrochemical stability between Si and three types of SSEs (75Li 2 S‐25P 2 S 5 , Li 2 S‐P 2 S 5 ‐LiI, and 3LiBH 4 ‐LiI). Intriguingly, as shown in Figure 12B, the 3LiBH 4 ‐LiI electrolyte showed superior electrochemical and chemical stability with Si anodes.…”

Section: Si‐ssbs Based On Other Ssesmentioning

confidence: 99%

“…With ex situ XPS, the bond information of Si anodes in Si‐SSBs was acquired by Huang et al (Figure 13F). [ 114 ]…”

Section: Diagnostic and Characterization Techniques For Si‐ssbsmentioning

confidence: 99%

“…Reproduced with permission. [ 114 ] Copyright 2023, Royal Society of Chemistry. LLZTO, Ta‐doped Li 7 La 3 Zr 2 O 12 ; LPS, 75Li 2 S‐25P 2 S 5 ; LPSI, 70(0.75Li 2 S‐0.25P 2 S 5 )‐30LiI); PPEK, polyether ether ketone; SE, solid electrolyte; SEI, solid‐electrolyte interphase; VGCF, vapor grown carbon fiber; XPS, X‐ray photoelectron spectroscopy.…”

Section: Diagnostic and Characterization Techniques For Si‐ssbsmentioning

confidence: 99%

“…In contrast, because of the reaction between Si and P contented in sulfide SSEs, Si//75Li 2 S-25P 2 S 5 //Li, and Si// Li 2 S-P 2 S 5 -LiI//Li only delivered limited ICE of 75.9% and 77.6%, respectively. [114] 7 | DIAGNOSTIC AND CHARACTERIZATION TECHNIQUES FOR Si-SSBs…”

Section: Si-ssbs Based On Other Ssesmentioning

confidence: 99%

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Building better solid‐state batteries with silicon‐based anodes

Sun

Yin

Chen

et al. 2023

Interdisciplinary Materials

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Silicon (Si)‐based solid‐state batteries (Si‐SSBs) are attracting tremendous attention because of their high energy density and unprecedented safety, making them become promising candidates for next‐generation energy storage systems. Nevertheless, the commercialization of Si‐SSBs is significantly impeded by enormous challenges including large volume variation, severe interfacial problems, elusive fundamental mechanisms, and unsatisfied electrochemical performance. Besides, some unknown electrochemical processes in Si‐based anode, solid‐state electrolytes (SSEs), and Si‐based anode/SSE interfaces are still needed to be explored, while an in‐depth understanding of solid–solid interfacial chemistry is insufficient in Si‐SSBs. This review aims to summarize the current scientific and technological advances and insights into tackling challenges to promote the deployment of Si‐SSBs. First, the differences between various conventional liquid electrolyte‐dominated Si‐based lithium‐ion batteries (LIBs) with Si‐SSBs are discussed. Subsequently, the interfacial mechanical contact model, chemical reaction properties, and charge transfer kinetics (mechanical–chemical kinetics) between Si‐based anode and three different SSEs (inorganic (oxides) SSEs, organic–inorganic composite SSEs, and inorganic (sulfides) SSEs) are systemically reviewed, respectively. Moreover, the progress for promising inorganic (sulfides) SSE‐based Si‐SSBs on the aspects of electrode constitution, three‐dimensional structured electrodes, and external stack pressure is highlighted, respectively. Finally, future research directions and prospects in the development of Si‐SSBs are proposed.

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Section: Si‐ssbs Based On Other Ssesmentioning

confidence: 99%

Section: Si‐ssbs Based On Other Ssesmentioning

confidence: 99%

“…With ex situ XPS, the bond information of Si anodes in Si‐SSBs was acquired by Huang et al (Figure 13F). [ 114 ]…”

Section: Diagnostic and Characterization Techniques For Si‐ssbsmentioning

confidence: 99%

Section: Diagnostic and Characterization Techniques For Si‐ssbsmentioning

confidence: 99%

Section: Si-ssbs Based On Other Ssesmentioning

confidence: 99%

See 3 more Smart Citations

Building better solid‐state batteries with silicon‐based anodes

Sun

Yin

Chen

et al. 2023

Interdisciplinary Materials

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Fluorinated Solvent‐Coupled Anion‐Derived Interphase to Stabilize Silicon Microparticle Anodes for High‐Energy‐Density Batteries

Liu

Huang

et al. 2023

Adv Funct Materials

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Si microparticle (SiMP) anodes feature much lower production cost and higher tap density compared to their nanosized counterparts, which hold great promise for high‐energy‐density lithium‐ion batteries, yet they suffer from unavoidable particle pulverization during repeated cycling, thus making their practical application extremely challenging. Herein, a non‐flammable localized high‐concentration electrolyte (LHCE) is rationally formulated using a fluorinated solvent, 2,2,2‐trifluoroethyl methyl carbonate (FEMC), to induce fluorinated solvent‐coupled anion‐derived interfacial chemistry. Unlike other LHCEs, the FEMC‐based LHCE is demonstrated to build a highly robust and stable F‐rich inorganic–organic bilayer solid–electrolyte interphase on SiMP anode, which endows stable cycling of SiMP anode (≈3.4 mAh cm−2) with an ultrahigh Coulombic efficiency of ≈99.7%. Coupled with its high anodic stability, the FEMC‐based LHCE endows unprecedented cycling stability for high‐energy‐density batteries containing high‐capacity SiMP anodes with Ni‐rich LiNi8Mn1Co1O2 or 5 V‐class LiNi0.5Mn1.5O4 cathodes. Remarkably, a 1.0 Ah‐level SiMP||LiNi8Mn1Co1O2 pouch‐cell stably operates for more than 200 cycles, representing the pioneering report in pouch cells containing SiMP anodes.

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Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

Boorboor Ajdari,

Asghari,

Molaei Aghdam

et al. 2024

Adv Funct Materials

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Solid‐state battery research has gained significant attention due to their inherent safety and high energy density. Silicon anodes have been promoted for their advantageous characteristics, including high volumetric capacity, low lithiation potential, high theoretical and specific gravimetric capacity, and the absence of lethal dendritic growth. Addressing concerns such as low conductivity, pulverization, fracture, dense solid electrolyte interface layer, and low coulombic efficiency has substantially improved the use of silicon electrodes in solid‐state batteries. Researchers have explored carbon additions, solid electrolyte suitability for Si anodes, pressure optimization, and particle size effects (nano/micro) to enhance energy density. Recent studies have investigated the conductivity mechanism, stack pressure, and anode‐solid electrolyte compatibility to improve energy density. Micro‐ and nano‐sized silicon have attracted attention in carbon‐based composites due to their exceptional conductivity, uniform distribution, efficient electron migration, and diffusion channels. The development of solid‐state batteries with high energy density, safety, and extended lifespan has been a major focus. This review sheds light on significant insights and strategic approaches for researchers working on solid‐state silicon‐based systems to overcome existing challenges.

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Solid-state silicon anode with extremely high initial coulombic efficiency

Abstract: Silicon is considered an important anode material for solid-state batteries (SSBs) because of its unique properties in addressing key challenges associated with Li metal anodes such as dendrite formation and...

Cited by 50 publications

References 67 publications

Building better solid‐state batteries with silicon‐based anodes

Building better solid‐state batteries with silicon‐based anodes

Fluorinated Solvent‐Coupled Anion‐Derived Interphase to Stabilize Silicon Microparticle Anodes for High‐Energy‐Density Batteries

Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

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