# A lithium secondary battery using a thin film of polymer electrolyte as a separator

Tomoyuki Ohta, Shinji Takeoka, Eishun Tsuchida, Han Yu Feng, Zheng Sheng Fu, Yun Pu Wang

Research output: Contribution to journalArticle

1 Citation (Scopus)

### Abstract

Ion‐conductive polymer which shows an ionic conductivity (σi) of 1.4 × 10−4S/cm at 25°C when mixed with LiClO4 (molar ratio in Li/OE = 0.05) was used as a separator of electrodes in a lithium secondary battery. The effect of high ionic conductivity on the performance of the battery was studied. The polymer structure was $$\left[ {\rm H}\rlap{-} ({\rm CH}_2 {\rm CHR}\rlap{-} )_{\rm n} {\rm H},{\rm R} = - {\rm CH}_2 ({\rm OCH}_{\rm 2} {\rm CH}_{\rm 2} )_6 {\rm OCH}_3 \right],$$ and the cathode was comprised of poly(1,3,4‐thiadiazole disulfide), graphite powder and the polymer electrolyte. The cell [(−)Li/polymer electrolyte/graphite–poly(disulfide) (+)] had an open circuit voltage (Voc) of 3.25 V, a plateau voltage of 2.75 V, a discharge density (id) of 0.05 mA/cm2 with the cathode utilization of 63%, and achieved over several tens of cycles at 25°C.

Original language English 433-436 4 Polymers for Advanced Technologies 3 8 https://doi.org/10.1002/pat.1992.220030803 Published - 1992

### Fingerprint

Secondary batteries
Separators
Lithium
Electrolytes
Polymers
Thin films
Ionic conductivity
Disulfides
Cathodes
Graphite
Open circuit voltage
Powders
Electrodes
Electric potential

### Keywords

• Graphite–poly(disulfide)
• Ionic conductivity
• Ion‐conductive polymer
• Lithium secondary battery
• Poly(oxyethylene)

### ASJC Scopus subject areas

• Polymers and Plastics

### Cite this

A lithium secondary battery using a thin film of polymer electrolyte as a separator. / Ohta, Tomoyuki; Takeoka, Shinji; Tsuchida, Eishun; Feng, Han Yu; Fu, Zheng Sheng; Wang, Yun Pu.

In: Polymers for Advanced Technologies, Vol. 3, No. 8, 1992, p. 433-436.

Research output: Contribution to journalArticle

Ohta, Tomoyuki ; Takeoka, Shinji ; Tsuchida, Eishun ; Feng, Han Yu ; Fu, Zheng Sheng ; Wang, Yun Pu. / A lithium secondary battery using a thin film of polymer electrolyte as a separator. In: Polymers for Advanced Technologies. 1992 ; Vol. 3, No. 8. pp. 433-436.
title = "A lithium secondary battery using a thin film of polymer electrolyte as a separator",
abstract = "Ion‐conductive polymer which shows an ionic conductivity (σi) of 1.4 × 10−4S/cm at 25°C when mixed with LiClO4 (molar ratio in Li/OE = 0.05) was used as a separator of electrodes in a lithium secondary battery. The effect of high ionic conductivity on the performance of the battery was studied. The polymer structure was $$\left[ {\rm H}\rlap{-} ({\rm CH}_2 {\rm CHR}\rlap{-} )_{\rm n} {\rm H},{\rm R} = - {\rm CH}_2 ({\rm OCH}_{\rm 2} {\rm CH}_{\rm 2} )_6 {\rm OCH}_3 \right],$$ and the cathode was comprised of poly(1,3,4‐thiadiazole disulfide), graphite powder and the polymer electrolyte. The cell [(−)Li/polymer electrolyte/graphite–poly(disulfide) (+)] had an open circuit voltage (Voc) of 3.25 V, a plateau voltage of 2.75 V, a discharge density (id) of 0.05 mA/cm2 with the cathode utilization of 63{\%}, and achieved over several tens of cycles at 25°C.",
keywords = "Graphite–poly(disulfide), Ionic conductivity, Ion‐conductive polymer, Lithium secondary battery, Poly(oxyethylene)",
author = "Tomoyuki Ohta and Shinji Takeoka and Eishun Tsuchida and Feng, {Han Yu} and Fu, {Zheng Sheng} and Wang, {Yun Pu}",
year = "1992",
doi = "10.1002/pat.1992.220030803",
language = "English",
volume = "3",
pages = "433--436",
journal = "Polymers for Advanced Technologies",
issn = "1042-7147",
publisher = "John Wiley and Sons Ltd",
number = "8",

}

TY - JOUR

T1 - A lithium secondary battery using a thin film of polymer electrolyte as a separator

AU - Ohta, Tomoyuki

AU - Takeoka, Shinji

AU - Tsuchida, Eishun

AU - Feng, Han Yu

AU - Fu, Zheng Sheng

AU - Wang, Yun Pu

PY - 1992

Y1 - 1992

N2 - Ion‐conductive polymer which shows an ionic conductivity (σi) of 1.4 × 10−4S/cm at 25°C when mixed with LiClO4 (molar ratio in Li/OE = 0.05) was used as a separator of electrodes in a lithium secondary battery. The effect of high ionic conductivity on the performance of the battery was studied. The polymer structure was $$\left[ {\rm H}\rlap{-} ({\rm CH}_2 {\rm CHR}\rlap{-} )_{\rm n} {\rm H},{\rm R} = - {\rm CH}_2 ({\rm OCH}_{\rm 2} {\rm CH}_{\rm 2} )_6 {\rm OCH}_3 \right],$$ and the cathode was comprised of poly(1,3,4‐thiadiazole disulfide), graphite powder and the polymer electrolyte. The cell [(−)Li/polymer electrolyte/graphite–poly(disulfide) (+)] had an open circuit voltage (Voc) of 3.25 V, a plateau voltage of 2.75 V, a discharge density (id) of 0.05 mA/cm2 with the cathode utilization of 63%, and achieved over several tens of cycles at 25°C.

AB - Ion‐conductive polymer which shows an ionic conductivity (σi) of 1.4 × 10−4S/cm at 25°C when mixed with LiClO4 (molar ratio in Li/OE = 0.05) was used as a separator of electrodes in a lithium secondary battery. The effect of high ionic conductivity on the performance of the battery was studied. The polymer structure was $$\left[ {\rm H}\rlap{-} ({\rm CH}_2 {\rm CHR}\rlap{-} )_{\rm n} {\rm H},{\rm R} = - {\rm CH}_2 ({\rm OCH}_{\rm 2} {\rm CH}_{\rm 2} )_6 {\rm OCH}_3 \right],$$ and the cathode was comprised of poly(1,3,4‐thiadiazole disulfide), graphite powder and the polymer electrolyte. The cell [(−)Li/polymer electrolyte/graphite–poly(disulfide) (+)] had an open circuit voltage (Voc) of 3.25 V, a plateau voltage of 2.75 V, a discharge density (id) of 0.05 mA/cm2 with the cathode utilization of 63%, and achieved over several tens of cycles at 25°C.

KW - Graphite–poly(disulfide)

KW - Ionic conductivity

KW - Ion‐conductive polymer

KW - Lithium secondary battery

KW - Poly(oxyethylene)

UR - http://www.scopus.com/inward/record.url?scp=84994944050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84994944050&partnerID=8YFLogxK

U2 - 10.1002/pat.1992.220030803

DO - 10.1002/pat.1992.220030803

M3 - Article

VL - 3

SP - 433

EP - 436

JO - Polymers for Advanced Technologies

JF - Polymers for Advanced Technologies

SN - 1042-7147

IS - 8

ER -