High lithium ionic conductivity of polymeric solid electrolytes

Watanabe, Masayoshi; Kanba, Motoi; Matsuda, Hirotaka; Tsunemi, Koichi; Mizoguchi, Katsuhiro; Tsuchida, Eishun; Shinohara, Isao

doi:10.1002/marc.1981.030021208

Cited by 134 publications

(47 citation statements)

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“…Addition of low-molecular-weight plasticizers such as ethylene and propylene carbonate to electrolytes based on PEO [126,127], polyacrylonitrile (PAN), poly(tetraethylene glycol diacrylate), or polyvinylpyrrolidone [128], and also to hybrid films based on poly(methyl methacrylate), polystyrene, poly(vinyl chloride) (PVC), PVA, PAN, and poly(vinylidene fluoride) in amounts of up to 30 mol % increased the electrical conductivity to 10 !5 310 !3 S cm !1 [129].…”

Section: Plasticized Polymer Electrolytesmentioning

confidence: 97%

Lithium-Conducting Polymer Electrolytes for Chemical Power Sources

et al. 2005

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Section: Plasticized Polymer Electrolytesmentioning

confidence: 97%

Lithium-Conducting Polymer Electrolytes for Chemical Power Sources

et al. 2005

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“…In this study, J1 was defined by Jl=a/ne (2) where n is the number of ions per unit volume, and e is the charge of an ion. n was calculated by PPO 3000.…”

Section: Correlation Between Viscosity and Equivalent Conductancementioning

confidence: 99%

Effect of Molecular Weight of Polymeric Solvent on Ion Conductive Behavior in Poly(propylene oxide) Solution of LiClO4

Watanabe

Ikeda

Shinohara

1983

Polym J

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ABSTRACT:Ion conductive behavior of LiCI04 in poly(propylene oxide) (PPO) was studied. PPO solutions of LiCI04 had ionic conductivity of 10-4 -10- 6 It is generally recognized that low electrical conductivity of usual polymers at low electric fields is due to ionic impurities, absorbed moisture, and decomposition products in the polymers. If a large amount of carrier ions can be generated and the carriers can have high mobility in polymers, polymeric ion conductors will be obtained. Such conductors will have a wide range of applications 1 in such areas as solid-state batteries, 2 fuel cells, electrochemical displays, and chemical sensors. In order to design a polymeric ion conductor, it is important to investigate the mechanisms of carrier generation and carrier migration in the polymer. However, because of the extremely low conduction current in usual polymers, these mechanisms have not as yet been clarified. methylene oxide) 5 are in the liquid state at room temperature, and dissolve many kinds of inorganic salts up to a high concentration. Electrolyte solutions formed with such polymeric solvents are useful in order to investigate the ion conductive behavior in polymeric materials.The most popular ionic conductors are electrolyte solutions, in which low molecular weight compounds are used as solvents. However, some kinds of polymers dissolve inorganic salts to form electrolyte solutions. 3 -5 Relatively low molecular weight polyethers such as poly(ethylene oxide), 3 poly(propylene oxide) (PP0), 4 • 5 and poly(tetraWe found 6 tl1.1t PPO solutions of LiC10 4 have ionic conductivity of !0-4 -I0-6 Scm-1 at room temperature and that films of these solutions prepared by block copolymerization give a polymeric solid electrolyte. The work described in this paper is concerned with the effect of molecular weight on the ion conductive behavior of LiC10 4 in PPO. EXPERIMENTAL MaterialsFour PPO samples having different molecular weights were used for the present study. PPO 400 (mol. wt. = 420) and PPO 3000 (mol. wt. = 2880) were obtained from Asahi Denka Industry Co. Ltd., and PPO 1000 (mol. wt. = 1160) and PPO 2000 (mol. wt. = 2020) were purchased from Kishida 65

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“…PVC is a rigid and relatively hard polymer, its crystallinity varies from 7 % to 20 % [11], and its transition temperature (T~) varies from 75 to 105 ~ [12]. Earlier attempts by Watanabe and co-workers [13] to prepare a PVC based polymer electrolyte were unsuccessful. Later Armand and co-workers 114] overcame this difficulty by using single solvent method.…”

Section: Introductionmentioning

confidence: 99%

FTIR and conductivity studies of PVC based polymer electrolyte systems

Rajendran

Uma

2001

Ionics

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Abstract. Poly (vinylchloride) (PVC)-LiBF4 polymer electrolytes plasticized with DBP in different mole ratios have been studied by FTIR and Impedance Spectroscopic techniques. The complexation has been confirmed from FTIR studies. The maximum room temperature conductivity (2.1-10 .7 S.cm "l) has been observed for PVC-LiBF4-DBP (10-5-85 mole%) complex. The temperature dependence of the conductivity of the polymer films seems to obey the VTF relation. The conductivity values are presented and the results are discussed.

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High lithium ionic conductivity of polymeric solid electrolytes

Cited by 134 publications

References 10 publications

Lithium-Conducting Polymer Electrolytes for Chemical Power Sources

Lithium-Conducting Polymer Electrolytes for Chemical Power Sources

Effect of Molecular Weight of Polymeric Solvent on Ion Conductive Behavior in Poly(propylene oxide) Solution of LiClO4

FTIR and conductivity studies of PVC based polymer electrolyte systems

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