Partially Neutralized Polyacrylic Acid as an Efficient Binder for Aqueous Ceramic‐Coated Separators for Lithium‐Ion Batteries

Thang, Ai Qin; Shen, Yuejun; Shi, Zugui; Ge, Yufeng; Wong, See Mun; Liu, Zhaolin; Yan, Qingyu

doi:10.1002/asia.202300538

Cited by 2 publications

(2 citation statements)

References 42 publications

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“…Anode‐free cells were assembled with NMC811 cathode, 60uL of 1 M Lithium bis(fluorosulfonyl)imide (LiFSI) in 1,2‐dimethoxyethane (DME)+0.3 M Lithium nitrate (LiNO 3 ) liquid electrolyte, Celgard 2325 membrane/ Sb‐coated Celgard 2325 membrane as separator, and pristine or Sb‐coated copper current collector. These cells were electrochemically activated at 0.1 C for 2 cycles, then cycled at 0.5 C from 2.7 V to 4.2 V to investigate the electrochemical performance [19,33, 38, 41] …”

Section: Methodsmentioning

confidence: 99%

Functionalizing Separator by Coating a Lithiophilic Metal for Dendrite‐Free Anode‐free Lithium Metal Batteries

Thang,

Tso,

Jia

et al. 2023

Chemistry An Asian Journal

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A stable anode‐free lithium metal battery (AFLMB) is accomplished by the adoption of a facile fabricated amorphous antimony (Sb)‐coated separator (SbSC). The large specific surface area of the separator elevates lithium (Li)‐Sb alloy kinetic, improving Li wetting ability on pristine copper current collector (Cu). When tested with LiNi0.8Mn0.1Co0.1O2 (NMC811) as cathode, the full cell with SbSC demonstrates low nucleation overpotential with compact, dendrite‐free and homogeneous Li plating, and exhibits a notable lithium inventory retention rate (LIRR) of 99.8 % with capacity retention of 93.6 % after 60 cycles at 0.5 C‐rate. Conversely, full cells containing pristine separator/Cu (i. e., SC) and pristine separator/Sb‐coated current collector (i. e., SSbC) display poor cycling performances with low LIRRs. Density functional theory corroborates the nucleation behaviours observed during in‐situ half‐cell Li deposition. Functionalizing polymeric separator by metallic coating in AFLMB is a novel approach in improving the cycle life of an AFLMB by promoting homogeneous Li plating behavior. This innovative approach exemplifies a promising applicability for uniform Li‐plating behavior to achieve a longer cycle life in AFLMB.

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Section: Methodsmentioning

confidence: 99%

Functionalizing Separator by Coating a Lithiophilic Metal for Dendrite‐Free Anode‐free Lithium Metal Batteries

Thang,

Tso,

Jia

et al. 2023

Chemistry An Asian Journal

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“…Several studies have investigated the use of Al2O3 in combination with various binders to prepare composite separators [24][25]. For instance, a study selected inorganic materials, such as SiO2, ZrO2, and TiO2 to improve its performance in highpower lithium-ion batteries [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Performance of Solid Polymer Electrolyte Separator Lithium Battery with Cellulose Acetate From Empty Palm Fruit Bunch Coated Al2O3-Polyacrylic Acid

Ginting,

Perdana,

Syahputra

et al. 2023

J. Penelit. Fis. Apl.

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As lithium battery technology improves, it becomes more important to have solid polymer electrolyte dividers that work better. The objective of this study is to enhance the efficiency of solid polymer electrolyte separators in lithium batteries. This research aims to expand the limits of innovation in hybrid separator development by utilizing empty palm fruit bunches (OPFEB) as a plentiful source of cellulose acetate. This approach enhances ion transfer by increasing the number of pores in the separator. However, there are challenges to achieving the desired levels of optimal ionic conductivity. In order to address these constraints, this study presents a novel Al2O3-PAA inert ceramic oxide coating treatment that is applied to the separator by a spin coating technique. An electron microscope was utilized to observe the pore structure of the separator. Additionally, the separator underwent physical, mechanical, thermal, and cyclic voltammetry tests. The findings of this research indicate a significant increase in the physical properties, particularly the porosity and mechanical strength. The thermal shrinkage of the Al2O3-PAA coated separator is below 10% when exposed to a temperature of 140 oC for 30 minutes. The Cyclic Voltammetry test results demonstrate a pronounced loop curve, indicating an improvement in the ionic conductivity of the Al2O3-PAA coated separator. The findings of this study provide a method to enhance the efficiency of separator performance at high temperatures while maintaining safety and long battery life.

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Partially Neutralized Polyacrylic Acid as an Efficient Binder for Aqueous Ceramic‐Coated Separators for Lithium‐Ion Batteries

Cited by 2 publications

References 42 publications

Functionalizing Separator by Coating a Lithiophilic Metal for Dendrite‐Free Anode‐free Lithium Metal Batteries

Functionalizing Separator by Coating a Lithiophilic Metal for Dendrite‐Free Anode‐free Lithium Metal Batteries

Enhanced Performance of Solid Polymer Electrolyte Separator Lithium Battery with Cellulose Acetate From Empty Palm Fruit Bunch Coated Al2O3-Polyacrylic Acid

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