A Performance and Cost Overview of Selected Solid-State Electrolytes: Race between Polymer Electrolytes and Inorganic Sulfide Electrolytes

Karabelli, Duygu; Birke, Kai Peter; Weeber, Max

doi:10.3390/batteries7010018

Cited by 49 publications

(36 citation statements)

References 73 publications

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“…These drawbacks lead to introducing them in SPEs as fillers instead. Filler-added SPEs are flexible, more stable and have better interfacial compatibility with Li metal electrodes [141,151]. Furthermore, the SPEs possess better processability and higher ionic conductivity than the solid electrolytes [151,152].…”

Section: Composite Solid Polymer Electrolytesmentioning

confidence: 99%

“…Filler-added SPEs are flexible, more stable and have better interfacial compatibility with Li metal electrodes [141,151]. Furthermore, the SPEs possess better processability and higher ionic conductivity than the solid electrolytes [151,152]. Similar to inactive fillers, the size, concentration and morphology of active fillers impose different impact on the CSPEs.…”

Section: Composite Solid Polymer Electrolytesmentioning

confidence: 99%

“…CSPE having Cu-BDC showed enhanced thermal stability which led to safer battery at high temperatures as compared to filler-free SPE [170]. More detailed reviews on CSPEs are available elsewhere [151,[174][175][176]. Some other CSPEs systems that have been reported by many researchers are tabulated in Table 7.…”

Section: Composite Solid Polymer Electrolytesmentioning

confidence: 99%

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Development on Solid Polymer Electrolytes for Electrochemical Devices

2021

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Electrochemical devices, especially energy storage, have been around for many decades. Liquid electrolytes (LEs), which are known for their volatility and flammability, are mostly used in the fabrication of the devices. Dye-sensitized solar cells (DSSCs) and quantum dot sensitized solar cells (QDSSCs) are also using electrochemical reaction to operate. Following the demand for green and safer energy sources to replace fossil energy, this has raised the research interest in solid-state electrochemical devices. Solid polymer electrolytes (SPEs) are among the candidates to replace the LEs. Hence, understanding the mechanism of ions’ transport in SPEs is crucial to achieve similar, if not better, performance to that of LEs. In this paper, the development of SPE from basic construction to electrolyte optimization, which includes polymer blending and adding various types of additives, such as plasticizers and fillers, is discussed.

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Section: Composite Solid Polymer Electrolytesmentioning

confidence: 99%

Section: Composite Solid Polymer Electrolytesmentioning

confidence: 99%

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Development on Solid Polymer Electrolytes for Electrochemical Devices

2021

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“…However, the use of metallic lithium form coupled with an organic liquid electrolyte caused the dendrite formations which eventually led to an internal short circuit and thus to a thermal runaway since porous polymer-based separators do not provide a sufficient physical barrier to stop the spread of dendrites. In addition, the existing liquid electrolytes are toxic and flammable due to the fluorinated salt LiPF 6 carbonate solvents respectively [19].…”

Section: Liquid Electrolytes Vs Solid Electrolytes For Lmbsmentioning

confidence: 99%

Feasible Energy Density Pushes of Li-Metal vs. Li-Ion Cells

Karabelli

Birke

2021

Applied Sciences

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Li-metal batteries are attracting a lot of attention nowadays. However, they are merely an attempt to enhance energy densities by employing a negative Li-metal electrode. Usually, when a Li-metal cell is charged, a certain amount of sacrificial lithium must be added, because irreversible losses per cycle add up much more unfavourably compared to conventional Li-ion cells. When liquid electrolytes instead of solid ones are used, additional electrolyte must also be added because both the lithium of the positive electrode and the liquid electrolyte are consumed during each cycle. Solid electrolytes may present a clever solution to the issue of saving sacrificial lithium and electrolyte, but their additional intrinsic weight and volume must be considered. This poses the important question of if and how much energy density can be gained in realistic scenarios if a switch from Li-ion to rechargeable Li-metal cells is anticipated. This paper calculates various scenarios assuming typical losses per cycle and reveals future e-mobility as a potential application of Li-metal cells. The paper discusses the trade-off if, considering only the push for energy density, liquid electrolytes can become a feasible option in large Li-metal batteries vs. the solid-state approach. This also includes the important aspect of cost.

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“…Significant interest has been devoted towards the development of lithium ion conductive solid electrolytes in a quest to substitute the flammable, volatile and unstable organic liquid-based electrolytes amid their safety (Karabelli et al 2021). The solid state battery technology reigns as a promising alternative, with fast lithium-ion diffusion, and immense potential to addressing thermal and chemical stability shortfalls of liquid-electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Formation of garnet-type Li7La3Zr2O12 nanoparticles as an alternative structural stabilization route

Ledwaba

Ngoepe

2022

SATNT

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The cubic garnet-type Li7La3Zr2O12 (LLZO) is an eminent candidate for next-generation solid state battery technology due to its therma stability and high ionic conductivity. As such, its operation mechanisms need to be thoroughly understood, particularly on the structural nstability challenge reported to occur at lower temperatures. Although it exists as either the tetragonal or cubic structures, the latter is favourable because of its higher Li+ conductivity rate. However, inability to retain thermodynamic stability in cubic phase at low temperatures (≤ 903,15 K) remains a challenge. As an alternative to extrinsic doping, as recently attempted in various studies, it has been discovered that decreasing the size to nano-level could remedy the phase stability challenge of cubic LLZO. Herein, we have modelled the bulk and nanostructured LLZO under various temperature conditions in the range 300 – 1500 K using the DL_ POLY molecular dynamics code, to understand the LLZO high temperature behaviour and track phase transformations. The molecular dynamics calculations performed on these materials revealed two distinct patterns of Li-ion transport on the diffusion coefficient plots. The trends in conductive ion diffusions show that nanostructured materials yield higher diffusion coefficients that the bulk structures. Findings of this study form a strong foundation towards the amorphization and recrystallization of these materials to monitor any change in structure post crystallization since the ability to retain both structural and conductivity rate are equally crucial.

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A Performance and Cost Overview of Selected Solid-State Electrolytes: Race between Polymer Electrolytes and Inorganic Sulfide Electrolytes

Cited by 49 publications

References 73 publications

Development on Solid Polymer Electrolytes for Electrochemical Devices

Development on Solid Polymer Electrolytes for Electrochemical Devices

Feasible Energy Density Pushes of Li-Metal vs. Li-Ion Cells

Formation of garnet-type Li7La3Zr2O12 nanoparticles as an alternative structural stabilization route

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