Practicality of methyl acetate as a co-solvent for fast charging Na-ion battery electrolytes

Desai, Parth Rakesh; Abou-Rjeily, John; Tarascon, Jean‐Marie; Mariyappan, Sathiya

doi:10.1016/j.electacta.2022.140217

Cited by 13 publications

(10 citation statements)

References 52 publications

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“…Drawing from analogous experiments detailed in earlier studies, we assigned the lowfrequency semi-circle to the charge transfer process across the SEI and CEI layers. 3 By fitting the obtained spectra to the equivalent circuit shown in Supporting Fig. S2, the charge transfer resistance (R ct ) across the interphases can be obtained (the summarized circuit element constants are given in Table S1).…”

Section: Resultsmentioning

confidence: 99%

“…To explore this, we turn our attention to a previously optimized electrolyte formulation designed for high-power NVPF|HC cells. 3 This electrolyte formulation consists on a 1 M NaPF 6 solution in a EC:PC:DMC:MA solvent mixture, together with electrolyte additives including vinylene carbonate (VC), sodium oxalato(difluoro)borate (NaODFB), succinonitrile (SN), and tris(trimethylsilyl)phosphite (TMSPi). In this electrolyte formulation the additive NaODFB has been shown to produce a NaF-rich SEI, which improves the SEI's stability, aligning with our previous conclusion regarding the positive role of NaF content in the SEI.…”

Section: Resultsmentioning

confidence: 99%

“…Hence, sodium-ion batteries based on Na 3 V 2 (PO 4 ) 2 F 3 (NVPF)|hard carbon (HC) and Prussian blue analogs (PBA) I HC chemistries are primarily promoted for their high power applications, achieving nearly 80% cell charging within 10 min. 3 However, achieving their full potential in terms of power capabilities requires maximizing the bulk ionic conductivity in the electrolyte while minimizing interphase impedance and charge transfer resistance.…”

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confidence: 99%

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Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells

Forero-Saboya,

Desai,

Healy Corominas

et al. 2023

J. Electrochem. Soc.

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Sodium-ion batteries are cheaper and attractive alternatives to lithium-ion batteries, particularly for low-energy and high-power applications. In this regard, a targeted cell design is essential to achieve optimal cycling performances and reduced cell impedance. While optimized electrode and electrolyte formulations are important, the formation protocol, initial cycles that establish the electrode-electrolyte interphase, significantly impacts cell impedance and interphase stability. In this study, we investigate the influence of formation temperature on the nature of interphases formed in Na3V2(PO4)2F3 (NVPF) | hard carbon (HC) cells. Our findings reveal that the interphase's nature and chemical composition evolve with the formation temperature. Moreover, cell temperature affects interphase dissolution and reformation, suggesting the potential benefits of employing mixed high- and low-temperatures during formation cycles to achieve desired interphase properties. A formation protocol coupling cycling stages at different temperatures (55-25-0°C) exhibits an edge over with respect to low impedance, slightly higher reversible capacity, and long cycling stability compared to the cells formed solely at 55°C. The results presented underscore the necessity of exploring formation protocols including not only high temperatures but also colder temperatures, like 0°C and below. This approach is pivotal for advancing the understanding of interphase dynamics and optimizing sodium-ion battery performance.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells

Forero-Saboya,

Desai,

Healy Corominas

et al. 2023

J. Electrochem. Soc.

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“…Furthermore, the 20% MA (with additives) electrolyte guaranteed outstanding power capabilities, allowing rapid charging of 18650 Na-ion batteries to 84% state of charge (SOC) in ~10 min. [84] In solid-state electrolytes, incorporating interstitial sodium ions or vacancies by aliovalent ion doping serves to boost the concentration of freely moving sodium ions and cause them to migrate together consistently. For example, Sc 3+ doping has been introduced into Na 3 Zr 2-Si 2 PO 12 (NASICON) electrolyte for a solid-state sodium battery.…”

Section: Electrolytementioning

confidence: 99%

“…Furthermore, the 20% MA (with additives) electrolyte guaranteed outstanding power capabilities, allowing rapid charging of 18650 Na‐ion batteries to 84% state of charge (SOC) in ~10 min. [ 84 ]…”

Section: Optimization Strategies In Sodium‐ion Batteriesmentioning

confidence: 99%

Optimization Strategies Toward Functional Sodium‐Ion Batteries

Chen,

Adit,

et al. 2023

Energy & Environ Materials

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Exploration of alternative energy storage systems has been more than necessary in view of the supply risks haunting lithium‐ion batteries. Among various alternative electrochemical energy storage devices, sodium‐ion battery outstands with advantages of cost‐effectiveness and comparable energy density with lithium‐ion batteries. Thanks to the similar electrochemical mechanism, the research and development of lithium‐ion batteries have forged a solid foundation for sodium‐ion battery explorations. Advancements in sodium‐ion batteries have been witnessed in terms of superior electrochemical performance and broader application scenarios. Here, the strategies adopted to optimize the battery components (cathode, anode, electrolyte, separator, binder, current collector, etc.) and the cost, safety, and commercialization issues in sodium‐ion batteries are summarized and discussed. Based on these optimization strategies, assembly of functional (flexible, stretchable, self‐healable, and self‐chargeable) and integrated sodium‐ion batteries (−actuators, −sensors, electrochromic, etc.) have been realized. Despite these achievements, challenges including energy density, scalability, trade‐off between energy density and functionality, cost, etc. are to be addressed for sodium‐ion battery commercialization. This review aims at providing an overview of the up‐to‐date achievements in sodium‐ion batteries and serves to inspire more efforts in designing upgraded sodium‐ion batteries.

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Carbonate Ester‐Based Sodium Metal Battery with High‐Capacity Retention at −50 °C Enabled by Weak Solvents and Electrodeposited Anode

Hu,

Guo,

Huang

et al. 2024

Angewandte Chemie

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Sodium metal batteries (SMBs) have received increasing attention due to the abundant sodium resources and high energy density, but suffered from the sluggish interfacial kinetic and unstable plating/stripping of sodium anode at low temperature, especially when matched with ester electrolytes. Here, we develop a stable ultra‐low‐temperature SMBs with high‐capacity retention at −50°C in a weak solvated carbonate ester‐based electrolyte, combined with an electrodeposited Na (Cu/Na) anode. The Cu/Na anode with electrochemically activated “deposited sodium” and stable inorganic‐rich solid electrolyte interphase (SEI) was favor for the fast Na+ migration, therefore accelerating the interfacial kinetic process. As a result, the Cu/Na || NaCrO2 battery exhibited the highest capacity retention (compared to room‐temperature capacity) in carbonate ester‐based SMBs (98.05% at −25°C, 91.3% at −40°C, 87.9% at −50°C, respectively). The cyclic stability of 350 cycles at −25°C with a high energy efficiency of 96.15% and 70 cycles at −50°C can be achieved. Even in chill atmospheric environment with the fluctuant temperature, the battery can still operate over one month. This work provides a new opportunity for the development of low‐temperature carbonate ester‐based SMBs.

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Practicality of methyl acetate as a co-solvent for fast charging Na-ion battery electrolytes

Cited by 13 publications

References 52 publications

Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells

Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells

Optimization Strategies Toward Functional Sodium‐Ion Batteries

Carbonate Ester‐Based Sodium Metal Battery with High‐Capacity Retention at −50 °C Enabled by Weak Solvents and Electrodeposited Anode

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Practicality of methyl acetate as a co-solvent for fast charging Na-ion battery electrolytes

Cited by 13 publications

References 52 publications

Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na3V2(PO4)2F3|HC Cells

Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na3V2(PO4)2F3|HC Cells

Optimization Strategies Toward Functional Sodium‐Ion Batteries

Carbonate Ester‐Based Sodium Metal Battery with High‐Capacity Retention at −50 °C Enabled by Weak Solvents and Electrodeposited Anode

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Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells

Influence of Formation Temperature on Cycling Stability of Sodium-Ion Cells: A Case Study of Na₃V₂(PO₄)₂F₃|HC Cells