Composite solid electrolyte for Li battery applications

Nagasubramanian, Ganesan; Attia, Alan I.; Halpert, G.; Peled, E.

doi:10.1016/0167-2738(93)90308-p

Cited by 56 publications

(27 citation statements)

References 4 publications

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“…SiO 2 does not favorably enhance the charge carrier distribution in the composite, so solid oxides in composites with LPS with a zero charge pH of ~3 are expected to yield similar results. Furthermore, the particle size of SiO 2 is smaller than that of LZNO and Al 2 O 3 , which has previously been demonstrated to cause both favorable and unfavorable changes in the charge transfer distribution in composite electrolytes depending on pore and particle sizes[21][22][23][24]. In this study, the LZNOand Al 2 O 3 fillers are composed of larger particles than the SiO 2 filler, and consequently, the ionic conductivity was enhanced with relatively larger particles.…”

mentioning

confidence: 62%

The “filler effect”: A study of solid oxide fillers with β-Li3PS4 for lithium conducting electrolytes

Hood

Wang

et al. 2015

Solid State Ionics

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Solid electrolytes are the subject of intense study partly because of their use in safer, high energy density, all-solid-state lithium-ion batteries. The addition of solid oxide fillers has been previously explored as a way to increase the ionic conductivity in composite electrolytes; however, no comparative study of the effect of both ion-conducting and non-conducting oxides on solid lithium superionic conductor electrolyte is reported. Nano-crystalline β-Li 3 PS 4 (LPS) was recently shown to have anomalous high ionic conductivity, but it was found that this property can be further enhanced. This study examines the effect of three solid oxide fillers (Li 6 ZnNb 4 O 14 , Al 2 O 3 , and SiO 2) in composites with LPS for the enhancement of the parent electrolyte. The electrolytes' processability, ionic conductivity, activation energy and stability against metallic lithium are presented to gain a complete understanding on the effect of solid oxide fillers on LPS while elucidating the significant enhancement of LPS through the addition of Li 6 ZnNb 4 O 14 or Al 2 O 3 .

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mentioning

confidence: 62%

The “filler effect”: A study of solid oxide fillers with β-Li3PS4 for lithium conducting electrolytes

Hood

Wang

et al. 2015

Solid State Ionics

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“…This allows a systematic study of the influence of interlayer distance on electrode performance. In this study, poly(ethylene oxide) 4 (PEO) is chosen as the intercalating agent because of its cation-conducting property [37,38]. In addition, PEO-MoS 2 has well-known tunability of the interlayer distance in intercalation composites resulting in lattice expansions up to 160% [39].…”

Section: Sb 2 O 4 and Co 3 O 4 )mentioning

confidence: 99%

Enhancing sodium-ion battery performance with interlayer-expanded MoS2–PEO nanocomposites

et al. 2015

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The larger ionic radius of Na ion (1.06 Å) compared with that of Li ion (0.76 Å) is a fundamental reason for the inferior diffusion kinetics of Na ion in intercalation hosts. Here we report interlayer expansion of intercalation hosts as a general strategy to facilitate the solid-state diffusion of Na ions. Based on this strategy, poly(ethylene oxide)-intercalated MoS 2 composites (PEO-MoS 2) were synthesized via a facile exfoliation-restacking method and tested as anode materials for Na-ion batteries (NIBs). The interlayer spacing of MoS 2 was increased from 0.615 nm to 1.45 nm by insertion of controlled amounts of PEO. The bilayer PEO-intercalated MoS 2 composite (PEO 2L-MoS 2) exhibits a specific capacity of 225 mAh g −1 under a current density of 50 mA g −1 , twice as high as that of commercial MoS 2 (com-MoS 2), and shows improved rate performance due to enhanced Na-ion diffusivity. The improvement in the electrochemical

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“…52,53 The mechanism of the processes leading to improved stability is not well understood and some explanations include scavenging effects and screening of the electrode with the ceramic phase. 52,54 4 Carbonaceous Electrodes…”

Section: Sei Formation In Solid Polymer and Gel Electrolytesmentioning

confidence: 99%