POSS Based Electrolytes for Rechargeable Lithium Batteries

Maitra, Prithwiraj; Wunder, Stephanie L.

doi:10.1149/1.1646832

Cited by 45 publications

(32 citation statements)

References 50 publications

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“…Wunder et al [512][513][514][515] investigated the temperature dependent conductivities of POSS-PEO(n) 8 electrolytes which had various EO chain lengths using LiTf, LiTFSI, LiBETI, LiClO 4 , LiPF 6 , LiAsF 6 , or LiBF 4 salt. The POSS-PEO(n) 8 electrolytes provided improved conductivity without decreased performance.…”

Section: Poss Corementioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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This article reviews the PEO-based electrolytes for lithium-ion batteries.Poly(ethylene oxide) (PEO) based materials are widely considered as promising candidates of polymer hosts in solid-state electrolytes for high energy density secondary lithium batteries. They have several specific advantages such as high safety, easy fabrication, low cost, high energy density, good electrochemical stability, and excellent compatibility with lithium salt. However, the typical linear PEO does not reach the production requirement because its insufficient ionic conductivity due to the high crystallinity of the ethylene oxide (EO) chains, which can restrain the ionic transition due to the stiff structure especially at low temperature. The scientists have explored different approaches to reduce the crystallinity hence to improve the ionic conductivity of PEO-based electrolytes, including: blending, modifying and making PEO derivatives etc. This review is focused on surveying the recent developments and issues about PEO-based electrolytes for lithium-ion batteries.

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Section: Poss Corementioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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“…Functionalized POSS particles are ideally suited for fundamental studies due to their well-defined organic/inorganic architecture at the molecular level and the wide range of organic outer shells that can be attached to the POSS particles [24][25][26]. Wunder and coworkers http://dx.doi.org/10.1016/j.ssi.2017.08.007 Received 25 July 2017; Received in revised form 11 August 2017; Accepted 13 August 2017 investigated PEO-terminated POSS as a liquid based electrolyte depending on the PEO chain length and the Li salt nature [27][28][29][30][31]. For short PEO chains, between 4 and 8 repeat units, the ionic conductivity at room temperature is about 10 − 4 S/cm.…”

Section: Introductionmentioning

confidence: 99%

Crosslinked perfluoropolyether solid electrolytes for lithium ion transport

et al. 2017

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A B S T R A C TPerfluoropolyethers (PFPE) are commercially available non-flammable short chain polymeric liquids. Endfunctionalized PFPE chains solvate lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt and these mixtures can be used as electrolytes for lithium (Li) batteries. Here we synthesize and characterize a new class of solid PFPE electrolytes. The electrolytes are made by either thermal or UV crosslinking PFPE chains with urethane methacrylate end-groups. For the synthesis of thermally crosslinked electrolytes, polyhedral oligomeric silsesquioxane (POSS) with organic acrylopropyl groups was used as crosslinker agent, while for UV cured electrolytes a photoinitiatior was used. We present thermal, morphological, and electrical data of the solid electrolytes. We compare these properties with those of the two parent liquids (PFPE with urethane methacrylate end-groups and POSS with acrylopropyl groups) mixed with LiTFSI. The solubility limit of LiTFSI in the PFPE-based solids is higher than that in the liquids. The conductivity data are analyzed using the Vogel-Tamman-Fulcher equation. The concentration of effective charge carriers is a strong function of the nature of the solvent (solid versus liquid) whereas the activation energy is neither a strong function of the nature of the solvent nor salt concentration.

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“…Maitra et al reported PEO/POSS‐PEO blend membranes as solid polymer electrolytes for lithium batteries. The conductivities of blend membranes were >10 −3 S/cm at 50°C and >10 −4 S/cm (LiClO 4 ) at room temperature, comparable to conductivities of oligomeric PEOs . Electrospun PVDF nanofiber membrane‐based polymer electrolytes should present more excellent properties by adding suitable amount of POSS.…”

Section: Introductionmentioning

confidence: 84%

Electrospun poly(vinylidene‐fluoride)/POSS nanofiber membrane‐based polymer electrolytes for lithium ion batteries

et al. 2015

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In this study, poly(vinylidene fluoride) (PVDF)/polyhedral oligomeric silsesquioxanes (POSS) nanofibrous membranes are prepared through electrospun process. Field emission scanning electron microscope images clearly show that PVDF/POSS membranes have interconnected multi fibrous layers with ultrafine porous structures. The average fiber diameter and crystallinity of PVDF/POSS membranes are lesser than that of pure PVDF membrane. Thermal stability and electrolyte uptake of blend membranes increase with increasing POSS content. Finally, PVDF/POSS membranes are soaked in a liquid electrolyte to form the polymer electrolytes and are assembled in coin cells to test their electrochemical properties such as ionic conductivity, interfacial characteristics, and electrochemical stability windows. The ionic conductivity improves with increasing POSS content and the highest ionic conductivity reaches 2.91 × 10−3 S/cm at room temperature. It is also worth mention that the composite polymer electrolytes show low interfacial resistance and high electrochemical stability window of 5.6 V (vs. Li+ /Li) with storage time. POLYM. COMPOS., 38:629–636, 2017. © 2015 Society of Plastics Engineers

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POSS Based Electrolytes for Rechargeable Lithium Batteries

Cited by 45 publications

References 50 publications

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

Crosslinked perfluoropolyether solid electrolytes for lithium ion transport

Electrospun poly(vinylidene‐fluoride)/POSS nanofiber membrane‐based polymer electrolytes for lithium ion batteries

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