High-safety composite solid electrolyte based on inorganic matrix for solid-state lithium-metal batteries

Hu, Qilin; Sun, Zhetao; Nie, Lu; Chen, Shaojie; Yu, Jiameng; Liu, Wei

doi:10.1016/j.mtener.2022.101052

Cited by 15 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…36,37 In general, the Li + ion-conducting channels in the hybrid electrolytes with high inorganic content are through the bulk and the grain boundaries of the inorganic particles and at their interfaces when an ion-conducting polymer is used. 38,39 The HSEs investigated in this study are based on the nonconducting SEBS polymer, eliminating the second possibility of the presence of a Li-ion transport channel. 40 We suggest that the grain boundaries of LIC synthesized by the conventional approach are less sensitive to the temperature range compared to those synthesized by the in situ approach.…”

Section: Resultsmentioning

confidence: 99%

In Situ Hybrid Solid-State Electrolytes for Lithium Battery Applications

Stankiewicz,

Criado-Gonzalez,

Olmedo-Martínez

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

The translation of inorganic−polymer hybrid battery materials from laboratory-scale to industry-relevant battery manufacturing processes is difficult due to their complexity, scalability, and cost and the limited fundamental knowledge that is available. Herein, we introduce a unique and compelling approach for the preparation of hybrid solid electrolytes based on an in situ synthesized halide electrolyte (Li 3 InCl 6 ) in the presence of a nonconducting polymer (styrene−ethylene−butylene−styrene block copolymer). This innovative in situ approach delivers flexible selfstanding membranes with good ionic conductivity (0.7 × 10 −4 S/ cm at 30 °C) and low activation energy (0.25 eV). This study suggests that the total conductivity is dominated by the inorganic− polymer interfaces and the microstructure of the hybrids affects the energy barriers to ion transport. This work opens a promising sustainable and cost-efficient route that can be easily implemented in current battery manufacturing lines.

show abstract

Section: Resultsmentioning

confidence: 99%

In Situ Hybrid Solid-State Electrolytes for Lithium Battery Applications

Stankiewicz,

Criado-Gonzalez,

Olmedo-Martínez

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…In the LLZO and MOF layers, the amorphous region is increased to facilitate ionic conduction due to the reduced crystallinity of the polymer matrix. In addition, the conductive interface between the filler and the polymer matrix creates more ionic conduction paths to accelerate ionic transport, and these factors endow the PLM electrolyte a higher ionic conductivity of 1.05 × 10 -4 S cm −1 [25,26]. According to the Arrhenius relation, PLM shows lower activation energy (E a ) than PEO, which suggests a lower migration barrier and fast ion migration kinetics of Li + in PLM [7,27].…”

Section: Structural Characterizationsmentioning

confidence: 99%

12.6 μm-Thick Asymmetric Composite Electrolyte with Superior Interfacial Stability for Solid-State Lithium-Metal Batteries

Zhang,

Gou,

Cui

et al. 2024

Nano-Micro Lett.

View full text Add to dashboard Cite

Solid-state lithium metal batteries (SSLMBs) show great promise in terms of high-energy–density and high-safety performance. However, there is an urgent need to address the compatibility of electrolytes with high-voltage cathodes/Li anodes, and to minimize the electrolyte thickness to achieve high-energy–density of SSLMBs. Herein, we develop an ultrathin (12.6 µm) asymmetric composite solid-state electrolyte with ultralight areal density (1.69 mg cm−2) for SSLMBs. The electrolyte combining a garnet (LLZO) layer and a metal organic framework (MOF) layer, which are fabricated on both sides of the polyethylene (PE) separator separately by tape casting. The PE separator endows the electrolyte with flexibility and excellent mechanical properties. The LLZO layer on the cathode side ensures high chemical stability at high voltage. The MOF layer on the anode side achieves a stable electric field and uniform Li flux, thus promoting uniform Li+ deposition. Thanks to the well-designed structure, the Li symmetric battery exhibits an ultralong cycle life (5000 h), and high-voltage SSLMBs achieve stable cycle performance. The assembled pouch cells provided a gravimetric/volume energy density of 344.0 Wh kg−1/773.1 Wh L−1. This simple operation allows for large-scale preparation, and the design concept of ultrathin asymmetric structure also reveals the future development direction of SSLMBs.

show abstract

“…Besides lithium salts, polymer additives were cosintered to consolidate the LAGP-(PVDF-HFP) composite electrolyte, which delivered a high ionic conductivity of 1.0 × 10 −4 S cm -1 at 25 °C (Berbano et al, 2017). Another type of oxidebased electrolyte, Li 6.25 Al 0.25 La 3 Zr 2 O 12 (LLZO) garnet ceramic, was cold-sintered with PEO polymer, resulting in stable charge/ discharge cycles over 550 h at a current density of 0.3 mA cm -2 (Hu et al, 2022). Furthermore, mixing lithium salts and polymer with the transient solvent mixture of acetone and DMF was used as the sintering aids for the co-sintering of LLZO ceramic-based electrolytes.…”

Section: Csp Of Composite Electrolytesmentioning

confidence: 99%

Cold sintering-enabled interface engineering of composites for solid-state batteries

et al. 2023

View full text Add to dashboard Cite

The cold sintering process (CSP) is a low-temperature consolidation method used to fabricate materials and their composites by applying transient solvents and external pressure. In this mechano-chemical process, the local dissolution, solvent evaporation, and supersaturation of the solute lead to “solution-precipitation” for consolidating various materials to nearly full densification, mimicking the natural pressure solution creep. Because of the low processing temperature (<300°C), it can bridge the temperature gap between ceramics, metals, and polymers for co-sintering composites. Therefore, CSP provides a promising strategy of interface engineering to readily integrate high-processing temperature ceramic materials (e.g., active electrode materials, ceramic solid-state electrolytes) as “grains” and low-melting-point additives (e.g., polymer binders, lithium salts, or solid-state polymer electrolytes) as “grain boundaries.” In this minireview, the mechanisms of geomimetics CSP and energy dissipations are discussed and compared to other sintering technologies. Specifically, the sintering dynamics and various sintering aids/conditions methods are reviewed to assist the low energy consumption processes. We also discuss the CSP-enabled consolidation and interface engineering for composite electrodes, composite solid-state electrolytes, and multi-component laminated structure battery devices for high-performance solid-state batteries. We then conclude the present review with a perspective on future opportunities and challenges.

show abstract

High-safety composite solid electrolyte based on inorganic matrix for solid-state lithium-metal batteries

Cited by 15 publications

References 38 publications

In Situ Hybrid Solid-State Electrolytes for Lithium Battery Applications

In Situ Hybrid Solid-State Electrolytes for Lithium Battery Applications

12.6 μm-Thick Asymmetric Composite Electrolyte with Superior Interfacial Stability for Solid-State Lithium-Metal Batteries

Cold sintering-enabled interface engineering of composites for solid-state batteries

Contact Info

Product

Resources

About