Polycationic doping of the LATP ceramic electrolyte for Li-ion batteries

Mashekova, Aiym; Baltash, Yelnury; Yegamkulov, Mukagali; Trussov, Ivan; Bakenov, Zhumabay; Mukanova, Aliya

doi:10.1039/d2ra05782d

Cited by 16 publications

(2 citation statements)

References 40 publications

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“…Similar-sized tetravalent cations (Zr 4+ , Hf 4+ ) appear to be suppressing the Ti 4+ reduction, whereas large divalent cations (Ca 2+ , Sr 2+ ) appear to be promoting it even at low concentrations. Doping of Mg 2+ showed improvement in the Ti 4+ reduction tolerance; however, it demonstrated a detrimental effect on the conductivity after contact with Li metal [ 119 ]. Stegmaier et al conducted further research on the substitution of Mg 2+ in LATP and found that the Mg 2+ did not bleed heavily into the adjacent crystalline grain domains, which made it a suitable dopant for interfacial engineering.…”

Section: Solid-state Electrolytesmentioning

confidence: 99%

Review of the Developments and Difficulties in Inorganic Solid-State Electrolytes

Liu

Wang

et al. 2023

Materials

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All-solid-state lithium-ion batteries (ASSLIBs), with their exceptional attributes, have captured the attention of researchers. They offer a viable solution to the inherent flaws of traditional lithium-ion batteries. The crux of an ASSLB lies in its solid-state electrolyte (SSE) which shows higher stability and safety compared to liquid electrolyte. Additionally, it holds the promise of being compatible with Li metal anode, thereby realizing higher capacity. Inorganic SSEs have undergone tremendous developments in the last few decades; however, their practical applications still face difficulties such as the electrode–electrolyte interface, air stability, and so on. The structural composition of inorganic electrolytes is inherently linked to the advantages and difficulties they present. This article provides a comprehensive explanation of the development, structure, and Li-ion transport mechanism of representative inorganic SSEs. Moreover, corresponding difficulties such as interface issues and air stability as well as possible solutions are also discussed.

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Section: Solid-state Electrolytesmentioning

confidence: 99%

Review of the Developments and Difficulties in Inorganic Solid-State Electrolytes

Liu

Wang

et al. 2023

Materials

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“…In this work, we aimed to rationally investigate LiPON SE dopants that can best enhance the ionic conductivity of this SE while preserving a high electrical resistance, and carried out this investigation by performing density functional theory (DFT) calculations. We hypothesized that using a tetravalent metal (TM) for doping, which has been demonstrated with only a couple of elements, 19,20 may enhance the ionic conductivity of LiPON since TM substitution has been indicated to break the tetrahedral oxygen bonds in PO 4 , and widen the Li migration channel. We rst modeled the amorphized pristine LiPON and LiPONs doped with tetravalent cations (TM-LiPONs) to predict the metallicity, cell volumes, and thermal stability levels of the TM-LiPONs compared to those of the undoped LiPON system.…”

Section: Introductionmentioning

confidence: 99%

Considering cell volume in dopant screening for improving Li-ion mobility in an amorphous LiPON solid-state electrolyte: an ab initio study

Choi

Cho

et al. 2023

RSC Adv.

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Challenges and Solutions of Solid‐State Electrolyte Film for Large‐Scale Applications

Huang,

Li,

Fan

et al. 2024

Advanced Energy Materials

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Solid‐state lithium‐ion batteries are widely accepted as the promising next‐generation energy storage technology due to higher energy density and improved safety compared to conventional lithium‐ion batteries with liquid electrolytes. Large‐area solid‐state electrolyte (SSE) films with adequate thickness control, improved ionic conductivity, and good interfacial contact can reduce internal resistance, increase the real energy density of batteries, and reduce manufacturing costs. Optimization of SSE properties at the particle scale and large‐scale preparation of SSE films are key to the development of high‐performance solid‐state lithium‐ion batteries and their industrialization. Therefore, this paper provides a comprehensive review of SSE, covering both particle‐level features like the effects of particle size, density, and air stability on the electrochemical performance, as well as four major routes for large‐scale preparation and relevant strategies for structural optimization of SSE films. In addition, the effects of large‐area SSE films on the electrochemical performance of solid‐state batteries and their applications in pouch solid‐state lithium‐ion battery systems are discussed in detail. Finally, the design principles of SSE particles and SSE films are summarized and the development direction of thin SSEs is envisaged.

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Polycationic doping of the LATP ceramic electrolyte for Li-ion batteries

Abstract: The tetravalent cations with similar sizes (Zr4+, Hf4+) supress the Ti4+ reduction while the bulky divalent cations (Ca2+, Sr2+) promote it even at relatively low concentrations.

Cited by 16 publications

References 40 publications

Review of the Developments and Difficulties in Inorganic Solid-State Electrolytes

Review of the Developments and Difficulties in Inorganic Solid-State Electrolytes

Considering cell volume in dopant screening for improving Li-ion mobility in an amorphous LiPON solid-state electrolyte: an ab initio study

Challenges and Solutions of Solid‐State Electrolyte Film for Large‐Scale Applications

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