Heat treatment of electrospun Polyvinylidene fluoride fibrous membrane separators for rechargeable lithium-ion batteries

Liang, Yinzheng; Cheng, Sichen; Zhao, Jibin; Zhang, Changhuan; Sun, Shiyuan; Zhou, Nanting; Qiu, Yiping; Zhang, Xiangwu

doi:10.1016/j.jpowsour.2013.04.019

Cited by 141 publications

(72 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polyester (PET) [231], PAN [232], polyimide (PI) [233], and polyvinylidene fluoride (PVDF) [234] are widely investigated electrospun separator materials. Polyester and polyimide nonwoven mats have exhibited highly porous structures, good wettability, improved thermal stabilities, and similar electrochemical performances compared to commercially available polyolefin separators [231,233].…”

Section: Fibrous Materials As Separatorsmentioning

confidence: 99%

A review of nanofibrous structures in lithium ion batteries

Pampal

Stojanovska

Simon

et al. 2015

Journal of Power Sources

120

View full text Add to dashboard Cite

Section: Fibrous Materials As Separatorsmentioning

confidence: 99%

A review of nanofibrous structures in lithium ion batteries

Pampal

Stojanovska

Simon

et al. 2015

Journal of Power Sources

120

View full text Add to dashboard Cite

“…Among them, spun nonwoven fibrous membranes with high porosity have shown the potential to hold a large amount of liquid electrolyte resulting in higher ionic conductivity. Spun membrane based separators of several polymeric systems have been developed such as PAN (Kim et al 2013), PET (Orendorff et al 2013), PVDF (Choi et al 2003;Liang et al 2013), nylon 6,6 (Yanilmaz et al 2014), PVDF/PMMA (Cui et al 2013) and PVDF/PEO (Prasanth et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Fibrous cellulose membrane mass produced via forcespinning® for lithium-ion battery separators

Weng¹,

Xu²,

Alcoutlabi³

et al. 2015

Cellulose

112

View full text Add to dashboard Cite

In this study, fibrous cellulose membranes were successfully mass produced by forcespinning Ò cellulose acetate, followed by alkaline hydrolysis treatment. Its performance as lithium-ion battery separator was evaluated. The cellulose membrane exhibits a randomly-oriented, fully-interconnected and highly porous three-dimensional fibrous network structure with a high porosity of 76 %. The developed membranes show good electrolyte wettability and high electrolyte uptake capability. Differential scanning calorimetry and thermal treatment show a superior thermal stability of the cellulose nonwoven membrane. Compared to commercially available polypropylene based separators, the developed fibrous cellulose membrane displays higher ionic conductivity, lower interfacial resistance and better electrochemical stability. Given its outstanding thermal characteristics and excellent electrochemical performance, this fibrous cellulose membrane has potential to be used as high-performance lithium-ion battery separator. This study provides a novel and feasible pathway for developing promising separators for high-performance lithium ion batteries.

show abstract

“…However, the poor mechanical properties of electrospun non-wovens can limit their use for industrial applications, where high stresses and bending are applied during battery assembly. 19 Improvements in membrane mechanical properties have been achieved either throughout thermal annealing of the membrane 20,21 or by the addition of nanoparticles (e.g. metal oxide).…”

mentioning

confidence: 99%

Effect of Silica and Tin Oxide Nanoparticles on Properties of Nanofibrous Electrospun Separators

Zaccaria

Fabiani

Cannucciari

et al. 2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

Innovative separators able to improve the performance and safety of Li-ion batteries are under investigation to meet the growing demand for large-size and high energy density electrochemical cells. In this work, highly porous nanofibrous Poly(vinylidene fluoride) (PVdF) separators loaded with oxide nanoparticles were produced by electrospinning. Silicon oxide and tin oxide nanoparticles were added to PVdF and membranes were characterized by SEM-EDS and TGA. The effect of nanoparticle addition on electrolyte uptake, mechanical properties and conductivity was investigated and such properties were compared to those of a commercial separator (Celgard 2400). Results showed that a small amount of additive can significantly improve the properties of PVdF electrospun membranes and that the different nanoparticles investigated in this work have different effect on membrane performances. In particular, the addition of SiO 2 increases the rate of electrolyte uptake and the toughness of the electrospun membrane, while the addition of SnO 2 decreases the rate of electrolyte uptake and increases the stiffness of the electrospun membrane. When loaded with nanoparticles, PVdF membranes maintain their insulating character also at high temperature. Nowadays, lithium-ion batteries control electronic device market (e.g. laptops, mobile phones, cameras) due to their high energy density, high efficiency and long cycle life. However, a breakthrough is needed in order to fulfil new requirements of hybrid and electric vehicles and energy storage devices, in terms of costs, better electrochemical performances and safety.

show abstract

Heat treatment of electrospun Polyvinylidene fluoride fibrous membrane separators for rechargeable lithium-ion batteries

Cited by 141 publications

References 27 publications

A review of nanofibrous structures in lithium ion batteries

A review of nanofibrous structures in lithium ion batteries

Fibrous cellulose membrane mass produced via forcespinning® for lithium-ion battery separators

Effect of Silica and Tin Oxide Nanoparticles on Properties of Nanofibrous Electrospun Separators

Contact Info

Product

Resources

About