Evaluation of the wetting time of porous electrodes in electrolytic solutions containing ionic liquid

Kühnel, Ruben‐Simon; Obeidi, Sh.; Lübke, Mechthild; Lex‐Balducci, Alexandra; Balducci, Andrea

doi:10.1007/s10800-013-0558-x

Cited by 43 publications

(40 citation statements)

References 22 publications

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“…[7][8][9][10] Thea pproaches that have been proposed to reduce the solid-solid interfacial resistances on the cathode side include surface modification of electrode particles with at hin film of solid electrolyte, [11] synthesis of nanosized electrode particles to increase the contact areas with solid electrolytes, [12] dielectric modification at the electrode-electrolyte interface, [13] fabrication of thin-film batteries, [14] design of composite electrolytes with polymer and ceramic materials, [15,16] and construction of ab attery with as ingle component. [18][19][20][21] Thel ow ionic conductivity (ca. [18][19][20][21] Thel ow ionic conductivity (ca.…”

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confidence: 99%

“…[17] Thea ddition of ionic liquids into the cathode and at the solid-solid interface is hampered by poor wettability of the cathode particles. [18][19][20][21] Thel ow ionic conductivity (ca. 10 À7 Scma tr oom temperature) and the limited electrochemical stability window (below 3.7 Vv s. Na + /Na) of solid polymer electrolyte of polyethylene oxide (PEO) may also hinder its integration into ac athode to minimize the interfacial resistances,e specially for high-voltage solid-state batteries.…”

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confidence: 99%

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A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

et al. 2017

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The development of all-solid-state rechargeable batteries is plagued by a large interfacial resistance between a solid cathode and a solid electrolyte that increases with each charge-discharge cycle. The introduction of a plastic-crystal electrolyte interphase between a solid electrolyte and solid cathode particles reduces the interfacial resistance, increases the cycle life, and allows a high rate performance. Comparison of solid-state sodium cells with 1) solid electrolyte Na Zr (Si PO ) particles versus 2) plastic-crystal electrolyte in the cathode composites shows that the former suffers from a huge irreversible capacity loss on cycling whereas the latter exhibits a dramatically improved electrochemical performance with retention of capacity for over 100 cycles and cycling at 5 C rate. The application of a plastic-crystal electrolyte interphase between a solid electrolyte and a solid cathode may be extended to other all-solid-state battery cells.

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A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

et al. 2017

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“…According to Kühnel et al, the infiltration rate K can thus be determined from the recorded m ( t ) curve using a tensiometer. To characterize the soaking behavior, the penetration rate K was determined fivefold for both the Celgard and the Separion.…”

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confidence: 99%

Influence of Separator Material on Infiltration Rate and Wetting Behavior of Lithium‐Ion Batteries

et al. 2019

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The reduction of process time and costs of lithium‐ion‐battery (LIB) cells to make electromobility an ecological technology and economically accessible for everyone is a very crucial research topic. Within the production process of actual LIB cells, the electrolyte filling and wetting are very time‐consuming, and by association, cost‐intensive steps. Therefore, it is essential to investigate and understand the impact of several process parameters on the wetting time and product quality. This can be achieved by the visualization of the wetting progress and subsequent electrochemical characterization of the LIB cells. The monitoring is realized by wetting balance tests for electrodes and separators as well as a new and powerful thermographic method. In addition, different separators with different surface chemistries are tested to improve the production process, the actual cell design, and therefore the costs of the final battery cell.

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“…The approaches that have been proposed to reduce the solid–solid interfacial resistances on the cathode side include surface modification of electrode particles with a thin film of solid electrolyte, synthesis of nanosized electrode particles to increase the contact areas with solid electrolytes, dielectric modification at the electrode–electrolyte interface, fabrication of thin‐film batteries, design of composite electrolytes with polymer and ceramic materials, and construction of a battery with a single component . The addition of ionic liquids into the cathode and at the solid–solid interface is hampered by poor wettability of the cathode particles . The low ionic conductivity (ca.…”

Section: Figurementioning

confidence: 99%

A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

et al. 2017

View full text Add to dashboard Cite

The development of all‐solid‐state rechargeable batteries is plagued by a large interfacial resistance between a solid cathode and a solid electrolyte that increases with each charge–discharge cycle. The introduction of a plastic–crystal electrolyte interphase between a solid electrolyte and solid cathode particles reduces the interfacial resistance, increases the cycle life, and allows a high rate performance. Comparison of solid‐state sodium cells with 1) solid electrolyte Na3Zr2(Si2PO4) particles versus 2) plastic–crystal electrolyte in the cathode composites shows that the former suffers from a huge irreversible capacity loss on cycling whereas the latter exhibits a dramatically improved electrochemical performance with retention of capacity for over 100 cycles and cycling at 5 C rate. The application of a plastic–crystal electrolyte interphase between a solid electrolyte and a solid cathode may be extended to other all‐solid‐state battery cells.

show abstract

Evaluation of the wetting time of porous electrodes in electrolytic solutions containing ionic liquid

Cited by 43 publications

References 22 publications

A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

Influence of Separator Material on Infiltration Rate and Wetting Behavior of Lithium‐Ion Batteries

A Plastic–Crystal Electrolyte Interphase for All‐Solid‐State Sodium Batteries

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