Electrochemical Na<sup>+</sup>storage properties of SnO<sub>2</sub>/graphene anodes in carbonate-based and ionic liquid electrolytes

Chen, Hung Ching; Patra, Jagabandhu; Lee, Sheng Wei; Tseng, Chung Jen; Wu, Tzi Yi; Lin, M.; Chang, Jeng‐Kuei

doi:10.1039/c7ta03226a

Cited by 21 publications

(9 citation statements)

References 58 publications

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“…Chang and co‐workers also reported the use of a N ‐propyl‐ N‐ methylpyrrolidinium (PMP)–FSI IL electrolyte with a SnO 2 /graphene anode in a half‐cell environment . When compared to organic electrolytes, the IL electrolyte was able to demonstrate higher CE@1 st , along with the most stable cycling.…”

Section: Electrolytes For Nibsmentioning

confidence: 99%

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

Bommier

2018

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Through intense effort in recent years, knowledge of Na-ion batteries has been advanced significantly, pertaining to electrodes. Often, such progress has been accompanied by using a convenient choice of electrolyte or binder. Nevertheless, it has been witnessed that "external" factors to electrodes, such as electrolytes, solid electrolyte interphase, and binders, affect the functions of electrodes profoundly. And generally, certain types of electrodes favor some electrolytes or binders. With a rapidly increasing number of publications in the area, trends in terms of electrolytes and binders are possibly exploitable. Unfortunately, the field has yet to see a review article that devotes itself to these nonelectrode aspects of Na-ion batteries. Here, the gap is filled by conducting a comprehensive review of these nonelectrode external factors, especially by looking into their correlation with electrochemical properties, such as cycle life, and first cycle coulombic efficiency. Not only are the representative reports reviewed, but also quantitative analyses on the database that are constructed are provided. With such analyses, some new data-driven perspectives are postulated, which are of great value to the community.

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Section: Electrolytes For Nibsmentioning

confidence: 99%

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

Bommier

2018

Small

268

181

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“…The initial efficiency of 70 %i s among the bestr eported( the mechanismi sd iscussed later), with efficiencies of 30-45 %c ommon for variousS nO 2 -based NIB anodes. [30,38,55,59,60] At the fifth cycle, aC Eo f99.3 %w as ob- tained for the NaCMC/NaPAAe lectrode at al ow charge-discharge rate of 20 mA g À1 .T he data suggest that an appropriate binder can accommodate the volume change andm odify the surfacec hemistry of SnO 2 @CMK-8, improving the reversibility of the electrode.…”

Section: Resultsmentioning

confidence: 79%

“…The Coulombic inefficiency (CI 1ÀCE) wasa scribed to the partial trapping of Na in SnO 2 and the formation of an SEI layer (i.e.,e lectrolyte decomposition). [30,38,55,59,60] At the fifth cycle, aC Eo f99.3 %w as ob- www.chemsuschem.org tained for the NaCMC/NaPAAe lectrode at al ow charge-discharge rate of 20 mA g À1 .T he data suggest that an appropriate binder can accommodate the volume change andm odify the surfacec hemistry of SnO 2 @CMK-8, improving the reversibility of the electrode. The initial efficiency of 70 %i s among the bestr eported( the mechanismi sd iscussed later), with efficiencies of 30-45 %c ommon for variousS nO 2 -based NIB anodes.…”

Section: Resultsmentioning

confidence: 91%

“…As shown in Figure S4, for the PVDF sample, the active material layer was mostly removed from the substrate. [13,55] Ac onversion reactiono fS nO 2 with Na + then occurred, which formed Sn and Na 2 O. However,t he connection between the SnO 2 @CMK-8 NPs was still not strong, as ac learly detachedf ilm was found on the tape side.…”

Section: Resultsmentioning

confidence: 99%

“…The irreversible peak at approximately 0.8 Vw as attributed to the decomposition of fluoroethylene carbonate and the formation of SEI. [13,55] Ac onversion reactiono fS nO 2 with Na + then occurred, which formed Sn and Na 2 O. When the potential was scanned towards even lower voltage (< 0.3 V), another cathodic peak arose, indicating the occurrence of Sn-Na alloying reactions (forming NaSn 5 ,N aSn, Na 9 Sn 4 ,N a 15 Sn 4 ).…”

Section: Resultsmentioning

confidence: 99%

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A Water‐Soluble NaCMC/NaPAA Binder for Exceptional Improvement of Sodium‐Ion Batteries with an SnO₂‐Ordered Mesoporous Carbon Anode

Patra

Rath

et al. 2018

ChemSusChem

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SnO2@CMK‐8 composite, a highly promising anode for Na‐ion batteries (NIBs), was incorporated with polyvinylidene difluoride (PVDF), sodium carboxymethylcellulose (NaCMC), sodium polyacrylate (NaPAA), and NaCMC/NaPAA mixed binders to optimize the electrode sodiation/desodiation properties. Synergistic effects between NaCMC and NaPAA led to the formation of an effective protective film on the electrode. This coating layer not only increased the charge–discharge Coulombic efficiency, suppressing the accumulation of solid–electrolyte interphases, but also kept the SnO2 nanoparticles in the CMK‐8 matrix, preventing the agglomeration and removal of oxide upon cycling. The adhesion strength and stability towards the electrolyte of the binders were evaluated. In addition, the charge–transfer resistance and apparent Na+ diffusion of the SnO2@CMK‐8 electrodes with various binders were examined and post‐mortem analyses were conducted. With NaCMC/NaPAA binder, exceptional electrode capacities of 850 and 425 mAh g−1 were obtained at charge–discharge rates of 20 and 2000 mA g−1, respectively. After 300 cycles, 90 % capacity retention was achieved. The thermal reactivity of the sodiated electrodes was studied by using differential scanning calorimetry. The binder effects on NIB safety, in terms of thermal runaway, are discussed.

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Optimization of the Carbon Content in Copper Phosphide–Carbon Composites for High Performance Sodium Secondary Batteries Using Ionic Liquids

et al. 2020

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Negative electrode materials with a large capacity and long cycle life are required for practical large‐scale sodium secondary batteries. Copper phosphide‐carbon composites containing various carbon contents were investigated for this purpose using an ionic liquid (IL) electrolyte. The composites were prepared by a two‐step high energy ball‐milling process: preparation of copper phosphide (CuP2) and composite formation between CuP2 and acetylene black (AB) at different ratios. A CuP2 to Cu3P phase transition was observed at AB contents of 30 and 40 wt%. The sample containing 30 wt% AB gave an optimal electrochemical performance (98.9 % capacity retention, 350 cycles, reversible capacity=358 mAh g−1 at 8000 mA g−1 and 90 °C), and upon cycling at 25 °C, a high capacity retention of 111 % was achieved (350 cycles). Ex situ XRD revealed the reversible conversion of Cu3P and the formation of Na3P during charging. The high performance was attributed to the P−O−C bond and the robust interfacial layer formed in the IL.

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Electrochemical Na⁺storage properties of SnO₂/graphene anodes in carbonate-based and ionic liquid electrolytes

Abstract: With a proper design of electrolyte composition, high charge–discharge performance and high cyclic stability of sodium-ion battery anodes are achievable.

Cited by 21 publications

References 58 publications

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

A Water‐Soluble NaCMC/NaPAA Binder for Exceptional Improvement of Sodium‐Ion Batteries with an SnO₂‐Ordered Mesoporous Carbon Anode

Optimization of the Carbon Content in Copper Phosphide–Carbon Composites for High Performance Sodium Secondary Batteries Using Ionic Liquids

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Electrochemical Na+storage properties of SnO2/graphene anodes in carbonate-based and ionic liquid electrolytes

Abstract: With a proper design of electrolyte composition, high charge–discharge performance and high cyclic stability of sodium-ion battery anodes are achievable.

Cited by 21 publications

References 58 publications

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

Electrolytes, SEI Formation, and Binders: A Review of Nonelectrode Factors for Sodium‐Ion Battery Anodes

A Water‐Soluble NaCMC/NaPAA Binder for Exceptional Improvement of Sodium‐Ion Batteries with an SnO2‐Ordered Mesoporous Carbon Anode

Optimization of the Carbon Content in Copper Phosphide–Carbon Composites for High Performance Sodium Secondary Batteries Using Ionic Liquids

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Product

Resources

About

Electrochemical Na⁺storage properties of SnO₂/graphene anodes in carbonate-based and ionic liquid electrolytes

A Water‐Soluble NaCMC/NaPAA Binder for Exceptional Improvement of Sodium‐Ion Batteries with an SnO₂‐Ordered Mesoporous Carbon Anode