Structural and electrochemical studies on PVDF-HFP membranes with nano SiO2 additive for polymer lithium ion batteries

Ying Bai; Chuan Wu; Feng Wu

Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries

Ying Bai^*, Chuan Wu, Feng Wu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Various contents of nano SiO₂ were introduced into the poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix to prepare polymer membranes. Morphologies and ion conductivities of the as-prepared membranes were investigated by scanning electronic microscopy (SEM) and AC impedance technique. Furthermore, the charge-discharge performances of the membranes being assembled to batteries were evaluated. Compared with the others, the membrane with the addition of 10wt. % SiO₂ exhibits higher conductivity, namely, approximately 1×10∼³ S·cm ^-1 at room temperature. The batteries assembled with the membranes filled with nano SiO₂ show better cycleability than the sample without nano SiO₂, which encounters a short circuit after 5th cycle. As a result, the addition of nano SiO₂ is confirmed as a feasible method to improve both mechanical strength and electrochemical performance of the polymer membranes for lithium ion batteries.

Original language	English
Title of host publication	"New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005
Publisher	China Press
Pages	365-369
Number of pages	5
ISBN (Print)	7502577173, 9787502577179
Publication status	Published - 2005
Event	2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005 - Shanghai, China Duration: 19 Oct 2005 → 21 Oct 2005

Publication series

Name	"New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005
Volume	1

Conference

Conference	2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005
Country/Territory	China
City	Shanghai
Period	19/10/05 → 21/10/05

Keywords

Lithium ion batteries
PVDF-HFP
Polymer membrane

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Bai, Y., Wu, C., & Wu, F. (2005). Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries. In "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005 (pp. 365-369). ("New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005; Vol. 1). China Press.

Bai, Ying ; Wu, Chuan ; Wu, Feng. / Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries. "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005. China Press, 2005. pp. 365-369 ("New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005).

@inproceedings{2c7927c88eca4224a486110f4bd3597a,

title = "Structural and electrochemical studies on PVDF-HFP membranes with nano SiO2 additive for polymer lithium ion batteries",

abstract = "Various contents of nano SiO2 were introduced into the poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix to prepare polymer membranes. Morphologies and ion conductivities of the as-prepared membranes were investigated by scanning electronic microscopy (SEM) and AC impedance technique. Furthermore, the charge-discharge performances of the membranes being assembled to batteries were evaluated. Compared with the others, the membrane with the addition of 10wt. % SiO2 exhibits higher conductivity, namely, approximately 1×10∼3 S·cm -1 at room temperature. The batteries assembled with the membranes filled with nano SiO2 show better cycleability than the sample without nano SiO2, which encounters a short circuit after 5th cycle. As a result, the addition of nano SiO2 is confirmed as a feasible method to improve both mechanical strength and electrochemical performance of the polymer membranes for lithium ion batteries.",

keywords = "Lithium ion batteries, PVDF-HFP, Polymer membrane",

author = "Ying Bai and Chuan Wu and Feng Wu",

year = "2005",

language = "English",

isbn = "7502577173",

series = "{"}New Century, New Materials and New Life{"} - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005",

publisher = "China Press",

pages = "365--369",

booktitle = "{"}New Century, New Materials and New Life{"} - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005",

note = "2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005 ; Conference date: 19-10-2005 Through 21-10-2005",

}

Bai, Y , Wu, C & Wu, F 2005, Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries. in "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005. "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005, vol. 1, China Press, pp. 365-369, 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005, Shanghai, China, 19/10/05.

Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries. / Bai, Ying ; Wu, Chuan; Wu, Feng.
"New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005. China Press, 2005. p. 365-369 ("New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Structural and electrochemical studies on PVDF-HFP membranes with nano SiO2 additive for polymer lithium ion batteries

AU - Bai, Ying

AU - Wu, Chuan

AU - Wu, Feng

PY - 2005

Y1 - 2005

N2 - Various contents of nano SiO2 were introduced into the poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix to prepare polymer membranes. Morphologies and ion conductivities of the as-prepared membranes were investigated by scanning electronic microscopy (SEM) and AC impedance technique. Furthermore, the charge-discharge performances of the membranes being assembled to batteries were evaluated. Compared with the others, the membrane with the addition of 10wt. % SiO2 exhibits higher conductivity, namely, approximately 1×10∼3 S·cm -1 at room temperature. The batteries assembled with the membranes filled with nano SiO2 show better cycleability than the sample without nano SiO2, which encounters a short circuit after 5th cycle. As a result, the addition of nano SiO2 is confirmed as a feasible method to improve both mechanical strength and electrochemical performance of the polymer membranes for lithium ion batteries.

AB - Various contents of nano SiO2 were introduced into the poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) matrix to prepare polymer membranes. Morphologies and ion conductivities of the as-prepared membranes were investigated by scanning electronic microscopy (SEM) and AC impedance technique. Furthermore, the charge-discharge performances of the membranes being assembled to batteries were evaluated. Compared with the others, the membrane with the addition of 10wt. % SiO2 exhibits higher conductivity, namely, approximately 1×10∼3 S·cm -1 at room temperature. The batteries assembled with the membranes filled with nano SiO2 show better cycleability than the sample without nano SiO2, which encounters a short circuit after 5th cycle. As a result, the addition of nano SiO2 is confirmed as a feasible method to improve both mechanical strength and electrochemical performance of the polymer membranes for lithium ion batteries.

KW - Lithium ion batteries

KW - PVDF-HFP

KW - Polymer membrane

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M3 - Conference contribution

AN - SCOPUS:84902688189

SN - 7502577173

SN - 9787502577179

T3 - "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005

SP - 365

EP - 369

BT - "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005

PB - China Press

T2 - 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005

Y2 - 19 October 2005 through 21 October 2005

ER -

Bai Y , Wu C, Wu F. Structural and electrochemical studies on PVDF-HFP membranes with nano SiO₂ additive for polymer lithium ion batteries. In "New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005. China Press. 2005. p. 365-369. ("New Century, New Materials and New Life" - Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials, ICAFPM 2005).