The role of polymers in lithium solid-state batteries with inorganic solid electrolytes

Sen, Sudeshna; Trevisanello, Enrico; Niemöller, Elard; Shi, Bing‐Xuan; Simon, Fabian; Richter, Felix H.

doi:10.1039/d1ta02796d

Cited by 71 publications

(56 citation statements)

References 237 publications

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“…[ 25 ] Please note, that recently the potential of halide SEs and polymers as protective surface coatings has been evaluated. [ 22,87 ]…”

Section: Ssb Cathodes—requirements and Solutionsmentioning

confidence: 99%

“…[25] Please note, that recently the potential of halide SEs and polymers as protective surface coatings has been evaluated. [22,87] To conclude, different factors have to be considered when designing the CAM and CAM PSD, which are summarized in Figure 6. Charge transport percolation, diffusion pathways inside the CAM, and active interface area are critical parameters which are influenced by the particle size distributions of CAM and SE.…”

Section: Interface Levelmentioning

confidence: 99%

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Designing Cathodes and Cathode Active Materials for Solid‐State Batteries

Minnmann

Strauss

Bielefeld

et al. 2022

Advanced Energy Materials

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CAM) in its lithiated form, that is, as present in a discharged cell. In its delithiated form, when the cell is charged, it is the only cell component that is contributing to storing energy (in conjunction with a hypothetical in situ lithiumplated anode formed during charging), thus making it the material required to be present in large quantity to achieve a high-performing cell. All other components, which may be required for large scale processing, only decrease the specific energy of the cell and are, therefore, engineered to minimize their content without affecting the function of the cell. This is evident in the research efforts made to increase the CAM content in the cathode layer, decrease the separator thickness as much as possible, and the pursuit to plate lithium metal in situ (in "anode-free" cells, which are more correctly described as "zero excess lithium metal" cells) without the use of an anode active material. [4] Thus, the CAM type and content in the cell ultimately determine the maximum specific energy that the system can provide.Moreover, the CAM contributes a significant proportion to the overall cell costs, [5] hence the necessity of steady tailoring toward reduced costs and higher energy density. So far, CAM development has mainly targeted performance optimization with LEs in LIBs. For instance, cathode electrolyte interface (CEI) formation, [6] Solid-state batteries (SSBs) currently attract great attention as a potentially safe electrochemical high-energy storage concept. However, several issues still prevent SSBs from outperforming today's lithium-ion batteries based on liquid electrolytes. One major challenge is related to the design of cathode active materials (CAMs) that are compatible with the superionic solid electrolytes (SEs) of interest. This perspective, gives a brief overview of the required properties and possible challenges for inorganic CAMs employed in SSBs, and describes stateof-the art solutions. In particular, the issue of tailoring CAMs is structured into challenges arising on the cathode-, particle-, and interface-level, related to microstructural, (chemo-)mechanical, and (electro-)chemical interplay of CAMs with SEs, and finally guidelines for future CAM development for SSBs are proposed.

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“…[ 25 ] Please note, that recently the potential of halide SEs and polymers as protective surface coatings has been evaluated. [ 22,87 ]…”

Section: Ssb Cathodes—requirements and Solutionsmentioning

confidence: 99%

Section: Interface Levelmentioning

confidence: 99%

Designing Cathodes and Cathode Active Materials for Solid‐State Batteries

Minnmann

Strauss

Bielefeld

et al. 2022

Advanced Energy Materials

Self Cite

131

123

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“…A great deal of research has been devoted to the various SSE materials, which can be summarized into three kinds, inorganic (oxides/sulfide) solid electrolytes, solid polymer electrolytes (SPEs), and their hybrids. There are advantages and disadvantages to the three kinds of solid-state electrolytes ( Porz et al, 2017 ; Chua et al, 2018 ; Sen et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Flexible Asymmetric Organic-Inorganic Composite Solid-State Electrolyte Based on PI Membrane for Ambient Temperature Solid-State Lithium Metal Batteries

Yang

Zhang

et al. 2022

Front. Chem.

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Solid-state lithium metal batteries have attracted more and more attention in recent years because of their high safety and energy density, with developments in the new energy industry and energy storage industry. However, solid-state electrolytes are usually symmetric and are not compatible with the cathode and anode at once. In this work, a flexible asymmetric organic-inorganic composite solid-state electrolyte consisting of PI membrane, succinonitrile (SN), LiLaZrTaO(LLZTO), Poly (ethylene glycol) (PEO), and LiTFSI were prepared by solution casting successfully. This lightweight solid electrolyte is stable at a high temperature of 150°C and exhibits a wide electrochemical window of more than 6 V. Furthermore, the high ionic conductivity of the flexible solid electrolyte was 7.3 × 10−7 S/cm. The solid-state batteries assembled with this flexible asymmetric organic-inorganic composite solid electrolyte exhibit excellent performance at ambient temperature. The specific discharge capacity of coin cells using asymmetric organic-inorganic composite solid-state electrolytes was 156.56 mAh/g, 147.25 mAh/g, and 66.55 mAh/g at 0.1, 0.2, and 1C at room temperature. After 100 cycles at 0.2C, the reversible discharging capacity was 96.01 mAh/g, and Coulombic efficiency was 98%. Considering the good performance mentioned above, our designed flexible asymmetric organic-inorganic composite solid electrolyte is appropriate for next-generation solid-state batteries with high cycling stability.

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“…13 In a ceramic/polymer composite, a dense ceramic channel is needed for the ceramic to participate in the ionic conductivity. 18,19 In the present work, we address this problem by developing a scalable method to produce a thin sheet (o250 mm thickness) of a pure NASICON ceramic using a sacrificial template and then infiltrate the pores and cracks of the ceramic film with a polymer [poly vinylidene fluoride-co-hexafluoropropylene (PVDF-HFP)]. The infiltrated PVDF-HFP improves the mechanical properties, and along with a small amount of liquid electrolyte, it participates in the ion conduction as a gelpolymer electrolyte (GPE).…”

mentioning

confidence: 99%

“…13 In a ceramic/polymer composite, a dense ceramic channel is needed for the ceramic to participate in the ionic conductivity. 18,19…”

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confidence: 99%

A flexible, ceramic-rich solid electrolyte for room-temperature sodium–sulfur batteries

Hegde

Ramaprabhu

2022

Chem. Commun.

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The role of polymers in lithium solid-state batteries with inorganic solid electrolytes

Abstract: Solid-state batteries have gained increasing attention with the discovery of new inorganic solid electrolytes, some of which rival the ionic conductivity of liquid electrolytes. With the additional benefit of being...

Cited by 71 publications

References 237 publications

Designing Cathodes and Cathode Active Materials for Solid‐State Batteries

Designing Cathodes and Cathode Active Materials for Solid‐State Batteries

Flexible Asymmetric Organic-Inorganic Composite Solid-State Electrolyte Based on PI Membrane for Ambient Temperature Solid-State Lithium Metal Batteries

A flexible, ceramic-rich solid electrolyte for room-temperature sodium–sulfur batteries

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