UV-cured methacrylate based polymer composite electrolyte for metallic lithium batteries

Amici, Julia; Romanin, Simone; Alidoost, Mojtaba; Versaci, Daniele; Francia, Carlotta; Smeacetto, Federico; Bodoardo, Silvia

doi:10.1016/j.jelechem.2019.02.027

Cited by 22 publications

(11 citation statements)

References 24 publications

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“…GPEs with different polymer-solvent combinations have been developed in Li-O 2 batteries and they have been shown to efficiently protect Li anode from oxygen cross-over, as well as limit electrolyte evaporation [ 15 , 16 , 17 ]. Furthermore, the incorporation of fillers, organic or inorganic, to both polymer and liquid electrolytes has been shown to improve the Li + transport properties, such as Li-ion transference number and ionic conductivity, mainly through their interactions with the polymer, solvent, or salt [ 11 , 18 , 19 , 20 ]. One particularly interesting organic filler is the dextrin-based nanosponge.…”

Section: Introductionmentioning

confidence: 99%

Nanosponge-Based Composite Gel Polymer Electrolyte for Safer Li-O2 Batteries

et al. 2021

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Li-O2 batteries represent a promising rechargeable battery candidate to answer the energy challenges our world is facing, thanks to their ultrahigh theoretical energy density. However, the poor cycling stability of the Li-O2 system and, overall, important safety issues due to the formation of Li dendrites, combined with the use of organic liquid electrolytes and O2 cross-over, inhibit their practical applications. As a solution to these various issues, we propose a composite gel polymer electrolyte consisting of a highly cross-linked polymer matrix, containing a dextrin-based nanosponge and activated with a liquid electrolyte. The polymer matrix, easily obtained by thermally activated one pot free radical polymerization in bulk, allows to limit dendrite nucleation and growth thanks to its cross-linked structure. At the same time, the nanosponge limits the O2 cross-over and avoids the formation of crystalline domains in the polymer matrix, which, combined with the liquid electrolyte, allows a good ionic conductivity at room temperature. Such a composite gel polymer electrolyte, tested in a cell containing Li metal as anode and a simple commercial gas diffusion layer, without any catalyst, as cathode demonstrates a full capacity of 5.05 mAh cm−2 as well as improved reversibility upon cycling, compared to a cell containing liquid electrolyte.

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Section: Introductionmentioning

confidence: 99%

Nanosponge-Based Composite Gel Polymer Electrolyte for Safer Li-O2 Batteries

et al. 2021

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“…Several strategies are proposed to solve these problems, e.g., using additives in the electrolyte, which reacts with metallic lithium for an in situ SEI formation, stabilization, or self-healing, − pretreating of the lithium metallic surface to prepare an ex-situ artificial SEI, − using gel polymer electrolytes, − using solid electrolytes with a high Younǵs modulus, , and increasing the lithium surface area. , …”

Section: Introductionmentioning

confidence: 99%

Lithium Metal Protection by a Cross-Linked Polymer Ionic Liquid and Its Application in Lithium Battery

Calderón

Vižintin

Bobnar

et al. 2020

ACS Appl. Energy Mater.

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Lithium (Li) metal has been considered as an important anode candidate to reach more powerful energy storage devices with higher gravimetric and volumetric capacities. Nevertheless, the growth of high surface area lithium (HSAL) and dendrites during the stripping/deposition of Li causes safety concerns and a low cycle life of Li metal batteries. Here, we report the obtained results for protection of metallic lithium surface by using a gel polymer ionic liquid cross-linked by activation with UV radiation (UV-PIL). The UV-PIL protects Li against the constant degradation caused by the formation of unstable lithium metal–electrolyte interphase and cell dry out due to continuous electrolyte consumption. We observed retarded growth of dendrites when lithium metal was protected with UV-PIL, and due to the lower ionic conductivity of UV-PIL, some differences of mass transport are present compared to carbonate-based liquid electrolyte. Nevertheless, the UV-PIL@Li negative electrode was successfully applied in a Li-ion battery with a lithium iron phosphate (LFP) positive electrode, showing similar behavior compared to the bare Li surface.

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“…Quasi-solid soft matter and polymer solid-state electrolytes have been subject of extensive research aiming to replace liquid electrolytes in some relevant applications such as ion rechargeable batteries (Amici et al, 2019;Choudhury et al, 2019), fuel cells (Ahn et al, 2020), electrochromic displays/windows (Vidinha et al, 2008;Garino et al, 2013;Fernandes et al, 2014), and electrolytegated transistors (Cunha et al, 2017;Nketia-Yawson et al, 2019). The great challenge is on getting high ionic conductivity without the need for a liquid medium or soft membrane separating electrodes.…”

Section: Introductionmentioning

confidence: 99%

Cellulose-Based Solid Electrolyte Membranes Through Microwave Assisted Regeneration and Application in Electrochromic Displays

et al. 2020

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One of the most current trends in applied electrochemistry is the development of solid ionic conductors with electrical, mechanical, and optical properties tailored for a specific functional application. Moreover, particular interest exists in materials with low environmental impact and low cost where matters such as sustainability and recyclability are considered. In this study, these concerns were considered by developing a solidstate electrolyte based on regenerated cellulose that meets the requirements for application in electrochromic devices. This soft-matter electrolyte exhibits particularly high room temperature ionic conductivity in the range of 6.5 mS cm −1 and Young's modulus in the range 3.7 GPa. Optimized electrolyte membranes were applied to inorganic optically active films resulting in all-solid-state electrochromic devices with performances reaching a practical level, retaining its optical modulation characteristics after hundreds of cycles.

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UV-cured methacrylate based polymer composite electrolyte for metallic lithium batteries

Cited by 22 publications

References 24 publications

Nanosponge-Based Composite Gel Polymer Electrolyte for Safer Li-O2 Batteries

Nanosponge-Based Composite Gel Polymer Electrolyte for Safer Li-O2 Batteries

Lithium Metal Protection by a Cross-Linked Polymer Ionic Liquid and Its Application in Lithium Battery

Cellulose-Based Solid Electrolyte Membranes Through Microwave Assisted Regeneration and Application in Electrochromic Displays

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