Authors:
Y. Kato Tokyo Institute of Technology Department of Applied Chemistry, Graduate School of Science and Engineering 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan

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K. Hasumi Tokyo Institute of Technology Department of Applied Chemistry, Graduate School of Science and Engineering 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan

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S. Yokoyama NOF corporation Alkylene Oxide Group 2, Oleochemicals Research Lab. 3-3 Chidori-cho Kawasaki-ku, Kawasaki, Kanagawa 210-0865 Japan 3-3 Chidori-cho Kawasaki-ku, Kawasaki, Kanagawa 210-0865 Japan

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T. Yabe NOF corporation Alkylene Oxide Group 2, Oleochemicals Research Lab. 3-3 Chidori-cho Kawasaki-ku, Kawasaki, Kanagawa 210-0865 Japan 3-3 Chidori-cho Kawasaki-ku, Kawasaki, Kanagawa 210-0865 Japan

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H. Ikuta Tokyo Institute of Technology Department of Applied Chemistry, Graduate School of Science and Engineering 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan

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Y. Uchimoto Tokyo Institute of Technology Department of Applied Chemistry, Graduate School of Science and Engineering 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan

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M. Wakihara Tokyo Institute of Technology Department of Applied Chemistry, Graduate School of Science and Engineering 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552 Japan

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Abstract  

We have focused on the poly(ethylene glycol) (PEG)-borate ester as a new type plasticizer for solid polymer electrolyte for lithium ion secondary battery. Adding the PEG-borate ester into the electrolyte shows the increase in the ionic conductivity of the polymer electrolyte. By measuring the glass-transition temperature of the polymer electrolytes with DSC, it is found that the increase in ionic conductivity of the polymer electrolyte is due to the increase in ionic mobility. By investigating the temperature dependence of the ionic conductivity of the polymer electrolytes using William-Landel-Ferry type equation, we considered that the PEG-borate ester does not have any influence for dissociation of Li-salt.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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