Composite of polyvinylidene fluoride–cellulose acetate with Al(OH)3 as a separator for high-performance lithium ion battery

Cui, Jinqiang; Liu, Jiuqing; He, Chang; Li, Jie; Wu, Xiufeng

doi:10.1016/j.memsci.2017.07.048

Cited by 91 publications

(33 citation statements)

References 38 publications

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“…In the search for more environmental friendly materials, a separator with PVDF, cellulose acetate and Al(HO) 3 particles was developed by non-solvent induced phase separation (NIPS), the microstructure being presented in Figure 6 a. This membrane exhibited high porosity, electrolyte uptake, and ionic conductivity, as well as good cycling capacity, even at high C-rates, as demonstrated in Figure 6 b [ 70 ].…”

Section: Poly(vinylidene Fluoride) and Its Copolymersmentioning

confidence: 99%

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Recent Advances in Poly(vinylidene fluoride) and Its Copolymers for Lithium-Ion Battery Separators

et al. 2018

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The separator membrane is an essential component of lithium-ion batteries, separating the anode and cathode, and controlling the number and mobility of the lithium ions. Among the polymer matrices most commonly investigated for battery separators are poly(vinylidene fluoride) (PVDF) and its copolymers poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE), poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), and poly(vinylidene fluoride-cochlorotrifluoroethylene) (PVDF-CTFE), due to their excellent properties such as high polarity and the possibility of controlling the porosity of the materials through binary and ternary polymer/solvent systems, among others. This review presents the recent advances on battery separators based on PVDF and its copolymers for lithium-ion batteries. It is divided into the following sections: single polymer and co-polymers, surface modification, composites, and polymer blends. Further, a critical comparison between those membranes and other separator membranes is presented, as well as the future trends on this area.

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Section: Poly(vinylidene Fluoride) and Its Copolymersmentioning

confidence: 99%

“… ( a ) SEM images of separators microstructure and ( b ) cycle performance of cells assembled [ 70 ], with copyright permission from Elsevier. …”

Section: Figurementioning

confidence: 99%

Recent Advances in Poly(vinylidene fluoride) and Its Copolymers for Lithium-Ion Battery Separators

et al. 2018

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“…Cui, J. et al [112] prepared a composite separator containing hydrogen bonded PVDF and cellulose acetate and aluminum hydroxide as a ceramic filler. They found that the sponge-like porous structure developed after solvent non-solvent exchange into a water bath and ceramic hydroxide nanoparticles mixing into polymer reduced the crystallinity, which enhanced the electrolyte uptake consequently leading to high ion conduction 2.85 mS cm −1 .…”

Section: Inorganic Particle-filled Composite Membranesmentioning

confidence: 99%

A Review on Inorganic Nanoparticles Modified Composite Membranes for Lithium-Ion Batteries: Recent Progress and Prospects

et al. 2019

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Separators with high porosity, mechanical robustness, high ion conductivity, thin structure, excellent thermal stability, high electrolyte uptake and high retention capacity is today’s burning research topic. These characteristics are not easily achieved by using single polymer separators. Inorganic nanoparticle use is one of the efforts to achieve these attributes and it has taken its place in recent research. The inorganic nanoparticles not only improve the physical characteristics of the separator but also keep it from dendrite problems, which enhance its shelf life. In this article, use of inorganic particles for lithium-ion battery membrane modification is discussed in detail and composite membranes with three main types including inorganic particle-coated composite membranes, inorganic particle-filled composite membranes and inorganic particle-filled non-woven mates are described. The possible advantages of inorganic particles application on membrane morphology, different techniques and modification methods for improving particle performance in the composite membrane, future prospects and better applications of ceramic nanoparticles and improvements in these composite membranes are also highlighted. In short, the contents of this review provide a fruitful source for further study and the development of new lithium-ion battery membranes with improved mechanical stability, chemical inertness and better electrochemical properties.

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“…The separator has a great electrical insulation performance to prevent internal short-circuiting and is the medium for lithium-ion transport [6]. Polyethylene (PE) and polypropylene (PP) are the widely used commercialized separators in lithium-ion batteries at present, owing to their excellent mechanical strength and chemical stability [7,8]. However, PE and PP materials have the disadvantages of low ion conductivity and poor compatibility with the electrolyte.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome these drawbacks, Fu et al [10] and Yoo et al [11] proposed coating SiO 2 nanoparticles on the surface of a commercial separator to enhance its thermal stability. Currently, the commonly used inorganic ceramic nanoparticles for coating include TiO 2 [12], SiO 2 [7,13], ZrO 2 [14], Al(OH) 3 [8] and Al 2 O 3 [15,16]. Although the ceramic-coating on PE or PP separators can enhance heat resistance, the ionic conductivity and wettability of the separators are poor.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO2 for Lithium-Ion Batteries

Zheng

et al. 2019

Materials

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To improve the thermal shrinkage and ionic conductivity of the separator for lithium-ion batteries, adding carboxylic titanium dioxide nanofiber materials into the matrix is proposed as an effective strategy. In this regard, a poly(vinylidene fluoride-hexafluoro propylene)/dibutyl phthalate/carboxylic titanium dioxide (PVDF-HFP/DBP/C-TiO2) composite separator is prepared with the phase inversion method. When the content of TiO2 nanofibers reaches 5%, the electrochemical performance of the battery and ion conductivity of the separator are optimal. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator shows about 55.5% of porosity and 277.9% of electrolyte uptake. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator has a superior ionic conductivity of 1.26 × 10 −3 S cm−1 and lower interface impedance at room temperature, which brings about better cycle and rate performance. In addition, the cell assembled with a PVDF-HFP/DBP/C-TiO2 separator can be charged or discharged normally and has an outstanding discharge capacity of about 150 mAh g−1 at 110 °C. The battery assembled with the PVDF-HFP/DBP/C-TiO2 composite separator exhibits excellent electrochemical performance under high and room temperature environments.

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Composite of polyvinylidene fluoride–cellulose acetate with Al(OH)3 as a separator for high-performance lithium ion battery

Cited by 91 publications

References 38 publications

Recent Advances in Poly(vinylidene fluoride) and Its Copolymers for Lithium-Ion Battery Separators

Recent Advances in Poly(vinylidene fluoride) and Its Copolymers for Lithium-Ion Battery Separators

A Review on Inorganic Nanoparticles Modified Composite Membranes for Lithium-Ion Batteries: Recent Progress and Prospects

High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO2 for Lithium-Ion Batteries

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