Investigation of the lithium-ion depletion in the silicon-silicon carbide anode/electrolyte interface in lithium-ion battery via electrochemical impedance spectroscopy

Nangir, Mahya; Massoudi, Abouzar; Tayebifard, Seyed Ali

doi:10.1016/j.jelechem.2020.114385

Cited by 18 publications

(4 citation statements)

References 29 publications

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“…EIS spectra are recorded for the 1 ||AC HLIC before and after 500, 1000, and 1500 cycles, and the corresponding equivalent circuit is presented in Figure S20. The Nyquist plot consists of a pair of twin semicircles which is different from our previously reported TTF-based MOF HLIC system, indicating different kinetic and thermodynamic phenomena . The almost constant semicircle resistance well accounts for its good cycling performance.…”

mentioning

confidence: 83%

“…The Nyquist plot consists of a pair of twin semicircles which is different from our previously reported TTF-based MOF HLIC system, indicating different kinetic and thermodynamic phenomena. 42 The almost constant semicircle resistance well accounts for its good cycling performance. By fitting the curves, the charge transfer impedances before and after 500, 1000, and 1500 cycles are 11.91, 12.53, 12.77, and 12.96 Ω, respectively, further verifying the cycle stability.…”

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confidence: 95%

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A Tetrathiafulvalene-based Bimetal–Organic Framework for a Hybrid Lithium-Ion Capacitor: The Role of Bimetallic Centers in Charge Storage and Stability

Ma,

Luo,

Wang

et al. 2023

ACS Energy Lett.

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Metal–organic frameworks (MOFs) have been found to be promising electrode materials for hybrid lithium-ion capacitors (HLICs) but face challenges due to their low capacity and cycling instability. Here, the first tetrathiafulvalene (TTF)-based bimetallic TTFTB-MnCo-MOF 1 was directly used as the electrode material for lithium-ion batteries, which presents enhanced performance compared with the isomorphic monometallic electrodes. Comprehensive characterizations reveal that Mn(II) in 1 is beneficial to the cycling stability and Co(II) contributes to the high specific capacity. The 1||NMC 622 full cell presents a capacity of 154.9 mAh g–1 at 100 mA g–1 in the 200th cycle. 1||AC HLIC displays a high specific energy of 141.4 Wh kg–1 at a specific power of 0.25 kW kg–1 and stable cycling performance. The remarkable performance, long-term cycling stability, and low self-discharge rate of the device are greater than those of most reported HLICs.

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confidence: 83%

mentioning

confidence: 95%

A Tetrathiafulvalene-based Bimetal–Organic Framework for a Hybrid Lithium-Ion Capacitor: The Role of Bimetallic Centers in Charge Storage and Stability

Ma,

Luo,

Wang

et al. 2023

ACS Energy Lett.

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“…(ii) quartz crystal microbalance, EQCM, [123,124]; (iii) electrochemical impedance spectroscopy, EIS, [125], and (iv) scanning electrochemical microscopy [126]. The intrinsic instability of the Li metal/electrolyte interface is the main obstacle towards the development of the lithium metal secondary battery (LMB) which is seen as one of the main breakthroughs in battery business.…”

Section: Other Spectroscopies and Electrochemistry-based Approachesmentioning

confidence: 99%

The Importance of Interphases in Energy Storage Devices: Methods and Strategies to Investigate and Control Interfacial Processes

2021

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Extended interphases are playing an increasingly important role in electrochemical energy storage devices and, in particular, in lithium-ion and lithium metal batteries. With this in mind we initially address the differences between the concepts of interface and interphase. After that, we discuss in detail the mechanisms of solid electrolyte interphase (SEI) formation in Li-ion batteries. Then, we analyze the methods for interphase characterization, with emphasis put on in-situ and operando approaches. Finally, we look at the near future by addressing the issues underlying the lithium metal/electrolyte interface, and the emerging role played by the cathode electrolyte interphase when high voltage materials are employed.

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“…In silicon electrodes for LIBs, the SEI composition is remarkably different depending on the binder and electrolyte composition [3,10,16,17,21,[29][30][31][32][33][34][35][36][37]. More importantly, the SEI grown on silicon during formation is often unstable and has been reported to change, showing compositional alterations, increasing impedance, lithium-ion depletion and thickness growth [38][39][40][41]. The optimization of a stable SEI layer on silicon unavoidably needs the analysis of the reactivity in LIBs of a specific silicon morphology with specific surface properties.…”

Section: Introductionmentioning

confidence: 99%

Solid–Electrolyte Interface Formation on Si Nanowires in Li-Ion Batteries: The Impact of Electrolyte Additives

et al. 2023

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The morphological changes of Si nanowires (Si NWs) cycled in 1:1 ethylene–carbonate (EC)/diethyl–carbonate (DEC) with or without different additives, fluoroethylene carbonate (FEC) or vinylene carbonate (VC), as well as the composition of the deposited solid–electrolyte interphase layer, are investigated by a combination of experimental microscopic and spectroscopic techniques. Scanning electron microscopy and optical spectroscopy highlight that the NW morphology is better preserved in samples cycled in the presence of FEC and VC additives compared to the additive-free electrolyte. However, only the use of FEC is capable of slightly mitigating the amorphization of silicon upon cycling. The solid electrolyte interphase (SEI) formed over the Si NWs cycled in the additive-free electrolyte is richer in organic and inorganic carbonates compared to the SEI grown in the presence of the VC and FEC additives. Furthermore, both additives are able to remarkably limit the degradation of the LiPF6 salt. Overall, the use of the FEC-additive in the carbonate-based electrolyte promotes both morphological and structural resilience of the Si NWs upon cycling thanks to the optimal composition of the SEI layer.

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Investigation of the lithium-ion depletion in the silicon-silicon carbide anode/electrolyte interface in lithium-ion battery via electrochemical impedance spectroscopy

Cited by 18 publications

References 29 publications

A Tetrathiafulvalene-based Bimetal–Organic Framework for a Hybrid Lithium-Ion Capacitor: The Role of Bimetallic Centers in Charge Storage and Stability

A Tetrathiafulvalene-based Bimetal–Organic Framework for a Hybrid Lithium-Ion Capacitor: The Role of Bimetallic Centers in Charge Storage and Stability

The Importance of Interphases in Energy Storage Devices: Methods and Strategies to Investigate and Control Interfacial Processes

Solid–Electrolyte Interface Formation on Si Nanowires in Li-Ion Batteries: The Impact of Electrolyte Additives

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