Anomalous behavior of physical and electrical properties in borophosphate glasses containing R2O and V2O5

Tsuchiya, Toshio; Moriya, Taro

doi:10.1016/0022-3093(80)90439-1

Cited by 81 publications

(36 citation statements)

References 2 publications

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“…Therefore, extensive efforts have been made in order to further increase their conductivity to a practical level. Various approaches such as increasing Li 2 O concentration, introducing lithium salts (e.g., lithium halides), and using two network‐former oxides (i.e., via mixed network‐former effect) have been demonstrated to be effective for this purpose. By utilizing rapid quenching technique, some glass electrolytes without network‐former oxides were also obtained .…”

Section: Historical Perspectivementioning

confidence: 99%

Oxide Electrolytes for Lithium Batteries

et al. 2015

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As the most promising candidate of the solid electrolyte materials for future lithium batteries, oxide electrolytes with highlithium-ion conductivity have experienced a rapid development in the past few decades. Existing oxide electrolytes are divided into two groups, i.e., crystalline group including NASICON, perovskite, garnet, and some newly developing structures, and amorphous/glass group including Li 2 O-MO x (M = Si, B, P, etc.) and LiPON-related materials. After a historical perspective on the general development of oxide electrolytes, we try to give a comprehensive review on the oxide electrolytes with high-lithium-ion conductivity, with special emphasis on the aspect of materials selection and design for applications as solid electrolytes in lithium batteries. Some successful examples and meaningful attempts on the incorporation of oxide electrolytes in lithium batteries are also presented. In the conclusion part, an outlook for the future direction of oxide electrolytes development is given.

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Section: Historical Perspectivementioning

confidence: 99%

Oxide Electrolytes for Lithium Batteries

et al. 2015

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“…The network structure of simple phosphate glass consists of P tetrahedra linked to neighbouring tetrahedra through bridging oxygen (BOs). Addition of Al 3+ , B 3+ , Bi 3+ , etc has been found to improve the chemical durability because of the formation and relative stability of M 3+ -O-P bond (Tsuchiya and Moriya 1980). These ions modify various physical properties including thermomechanical and optical behaviour basically due to change in glass structural network through formation of crosslinked bonds.…”

Section: Introductionmentioning

confidence: 98%

Surface degradation behaviour of sodium borophosphate glass in aqueous media: Some studies

et al. 2009

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The degradation behaviour of phosphate glass with nominal composition, 40Na 2 O-10BaO-xB 2 O 3 -(50-x)P 2 O 5 , where 0 ≤ x ≤ 20 mol%, was studied in water, HCl and NaOH solutions at room temperature to 60°C for different periods extending up to 300 h. These glasses were synthesized by conventional melt-quench technique. Dissolution rates were found to increase with B 2 O 3 content in the glass. The dissolution rates for the glass having 10 mol% B 2 O 3 were found to be 0⋅002 g/cm 2 and 0⋅015 g/cm 2 in distilled water and 5% NaOH solution, respectively, at room temperature after 225 h of total immersion period, whereas it increased considerably to 0⋅32 g/cm 2 in 5% NaOH at 60°C after 225 h. However, glass samples with x = 15 and 20 mol% B 2 O 3 were dissolved in 5% HCl solution after 5 h immersion. The degradation behaviour has been correlated with the structural features present in the glass. The optical microscopy of the corroded surface revealed that the corrosion mechanism were different in acid and alkali media.

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“…In fact, the non-additive increase in electrical conductivity, observed when a second glass-former is added to a binary glass, is known as mixed former effect [1]. The most classical and remarkable example of the mixed former effect was found at the borophosphate system [6] in which the conductivity of the most conductive ternary compositions are two orders of magnitude higher than that of the binary glasses. In this system, the binary compositions, lithium borate and lithium phosphate, present very similar electrical conductivities values.…”

Section: Introductionmentioning

confidence: 99%