Tannic acid/polyethyleneimine-decorated polypropylene separators for Li-Ion batteries and the role of the interfaces between separator and electrolyte

Zhang, Yin; Yuan, Jiajia; Song, Yaqin; Yin, Xue; Sun, Chuangchao; Zhu, Liping; Zhu, Bao‐Ku

doi:10.1016/j.electacta.2018.03.099

Cited by 72 publications

(41 citation statements)

References 38 publications

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“…Separator is one of the essential components of lithium‐ion batteries (LIBs), which is used to prevent physical contact between anode and cathode to avoid internal short circuits, preserve liquid electrolyte, and permitting the rapid migration of lithium ions during cycling process . The most commonly used separators in LIBs are polyolefin separators predominantly polypropylene (PP), polyethylene (PE), and their multilayer formations like PE/PP or PP/PE/PP owing to their high tensile strength and shutdown ability.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

Waqas

Ali

et al. 2018

Adv Materials Inter

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Highly efficient and thermally stable polyethylene‐hexagonal boron nitride/poly(vinylidene fluoride‐hexafluoropropylene) (PE‐BN/PVDF‐HFP) bilayer separator with microporous structure is prepared, for the first time with a wet chemistry method. The incorporation of hexagonal boron nitride particles in PE matrix promotes the interfacial interaction between PE and PVDF‐HFP layers to prevent separation of layers and supresses dendrite growth owing to the strong adsorption energy with polymers, large interactive surface area, and superior mechanical capability. The PVDF‐HFP layer provides additional thermally stable backbone while its inherent hydrophilic property and highly porous structure improve the overall performance of the separator. The bilayer separator owns a high electrolyte uptake of 348% and a thermal shrinkage of 6.6% upon annealing at 140 °C for 1 h. The lithium iron phosphate/lithium cell with the as‐prepared separator owns a high ionic conductivity up to 4.4 × 10−4 S cm−1, and a room‐temperature capacity of 120 mAh g−1 at 2 C with a 95% capacity retention after 500 cycles and a capability of 108 mAh g−1 at 4 C. The PE‐BN/PVDF‐HFP separator is a promising alternative of traditional multilayer separators for high‐performance lithium‐ion batteries.

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Section: Introductionmentioning

confidence: 99%

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

Waqas

Ali

et al. 2018

Adv Materials Inter

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“…Previous studies suggested that the lithium ion in the organic solvent is enshrouded by solvation sheath, and the amidogen can interact with the lithium ion to promote the partial dissociation of lithium‐ion solvent sheath around lithium ion. [ 22–24 ] In addition, the nitrogen of amidogen can decrease the anion/cation binding energies, promoting ionic dissociation and increasing the concentration of free ions. [ 24,25 ] This situation would improve the lithium‐ion transference number and promote the battery performance under high power density.…”

Section: Introductionmentioning

confidence: 99%

“…[ 22–24 ] In addition, the nitrogen of amidogen can decrease the anion/cation binding energies, promoting ionic dissociation and increasing the concentration of free ions. [ 24,25 ] This situation would improve the lithium‐ion transference number and promote the battery performance under high power density.…”

Section: Introductionmentioning

confidence: 99%

Amino‐Functionalized Al₂O₃ Particles Coating Separator with Excellent Lithium‐Ion Transport Properties for High‐Power Density Lithium‐Ion Batteries

et al. 2020

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The coating method of Al2O3 nanoparticles has been widely applied to promote the thermostability and wettability of polyolefin separators. However, the untreated Al2O3/polyethylene (PE) composite separators still need to improve the ionic conductivity (σ) and lithium‐ion transference number (tLi+). Herein, a method is found to obtain amino‐functionalized Al2O3 nanoparticles (N‐Al2O3). As a result, the cell with the N‐Al2O3/PE composite separator has improved σ (0.39 mS cm−1) and tLi+ (0.49). The LiCoO2/Li half‐cell based on N‐Al2O3/PE composite separator exhibits higher discharge capacity (125 mAh g−1) and better cycle performance under the current density of 1 C. Furthermore, the cell containing N‐Al2O3/PE composite separator has a better rate performance and the discharge capacity still maintains 75 mAh g−1 at a high rate of 4 C. This method is effective and simple to modify the PE separator with the amino‐functionalized Al2O3 nanoparticles and enhance the high rate performance of Li‐ion batteries.

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“…Gallic acid (GA) derivatives, which are composed of π‐π conjugated aromatic structures, and abundant carbonyl, carboxyl, phenolic groups, enabling them as the potential materials in energy storage applications. Previous works have demonstrated tannic acid (TA), which is a kind of oligomer of GA, is the good modifier for separator to reject dual polysulfide shuttle effect in lithium sulfur batteries . In order to improve the electrochemical performance of conventional metal oxide, TA was used as carbon source to form carbon shell on electrode materials surface to increase the discharge capacity and stability in LIBs .…”

Section: Introductionmentioning

confidence: 99%

“…Previous works have demonstrated tannic acid (TA), which is a kind of oligomer of GA, is the good modifier for separator to reject dual polysulfide shuttle effect in lithium sulfur batteries. [36,37] In order to improve the electrochemical performance of conventional metal oxide, TA was used as carbon source to form carbon shell on electrode materials surface to increase the discharge capacity and stability in LIBs. [38,39] Sampath and Zhu et al attempted to apply TA and another oligomer, ellagic acid (EA) as electrode materials in LIBs directly, and 100 mAh g À 1 discharge capacity at 40 mA g À 1 after 250 cycles for TA (80 % retention) and 320 mAh g À 1 discharge capacity at 53 mA g À 1 after 30 cycles for EA (80 % retention) were exhibited.…”

Section: Introductionmentioning

confidence: 99%

Natural Compounds Gallic Acid Derivatives for Long‐Life Li/Na Organic Batteries

Xia

Wang

et al. 2019

ChemElectroChem

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Li/Na organic batteries have attracted the attention of researchers because of their flexibility, lightweight, and recyclability compared to the metal oxide‐based Li/Na‐ion batteries. The low specific capacity is a major problem for the application of Li/Na organic batteries. Herein, we found that the green and natural gallic acid derivatives, ellagic acid (EA, dimer) and tannic acid (TA, oligomer) are good anode materials for Li‐ and Na‐ion batteries due to their π‐π conjugated structures and abundant carbonyl, carboxyl, phenolic groups. Outstanding electrochemical performance in specific capacity and cycling stability are exhibited. 644, 364, 195, and 162 mAh g−1 for EA and 297, 451, 465, and 265 mAh g−1 for TA are obtained for Li‐ion batteries (LIBs) at current densities of 0.1, 0.2, 0.5, and 1.0 A g−1 after 150, 250, 500, 1000 cycles, respectively. The specific capacities of EA and TA LIBs are higher than those of organic LIBs and can be comparable with metal oxide LIBs. And the cycling stabilities of EA and TA LIBs are better. Meanwhile, EA and TA are universal anode materials, which enable us to construct Na‐ion batteries that show specific capacity of 105 mAh g−1 for EA and 46 mAh g−1 for TA at 50 mA g−1 after 350 cycles. This work provides us important inspirations for exploring organic materials from nature, which can be applied in green and high‐performance energy‐storage devices.

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Tannic acid/polyethyleneimine-decorated polypropylene separators for Li-Ion batteries and the role of the interfaces between separator and electrolyte

Cited by 72 publications

References 38 publications

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

Amino‐Functionalized Al₂O₃ Particles Coating Separator with Excellent Lithium‐Ion Transport Properties for High‐Power Density Lithium‐Ion Batteries

Natural Compounds Gallic Acid Derivatives for Long‐Life Li/Na Organic Batteries

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Tannic acid/polyethyleneimine-decorated polypropylene separators for Li-Ion batteries and the role of the interfaces between separator and electrolyte

Cited by 72 publications

References 38 publications

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries

Amino‐Functionalized Al2O3 Particles Coating Separator with Excellent Lithium‐Ion Transport Properties for High‐Power Density Lithium‐Ion Batteries

Natural Compounds Gallic Acid Derivatives for Long‐Life Li/Na Organic Batteries

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Product

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Amino‐Functionalized Al₂O₃ Particles Coating Separator with Excellent Lithium‐Ion Transport Properties for High‐Power Density Lithium‐Ion Batteries