Glass fiber separator coated by boron doped anatase TiO2 for high-rate Li–S battery

Eroğlu, Ömer; Kiai, Maryam Sadat; Kızıl, Hüseyin

doi:10.1016/j.materresbull.2020.110917

Cited by 27 publications

(14 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure c, the peak at 299.1, 434.8, and 544.9 eV for the PDAAQ/L-GO-coated GF separator can be assigned to C1s, N1s, and O1s, respectively. − …”

Section: Resultsmentioning

confidence: 96%

Application of Facile Graphene Oxide Binders with Nanocomposites for Efficient Separator Performance in Lithium Sulfur Batteries

et al. 2021

Self Cite

View full text Add to dashboard Cite

Lithium sulfur (Li-S) batteries with high theoretical energy density (∼2.5 kWh kg −1 ) and high theoretical gravimetric capacity (1672 mAh g −1 ) have drawn great attention as they are promising candidates for large-scale energy storage devices. Unfortunately, some technical obstacles hinder the practical application of Li-S batteries, such as the formation of polysulfide intermediates between the cathode and anode as well as the insulating nature of the sulfur cathode and other discharge products. Glass fiber (GF) separators provide some cavities to withstand the volume change of sulfur during cycling, leading to long-term cycling stability. Here, the application of polar materials with a novel liquid graphene oxide (L-GO) binder rather than the standard poly(vinylidene fluoride) (PVDF) binder as effective coatings on the GF separator of the Li-S cell has been developed to suppress the shuttle effect. The deposition of silicon dioxide (SiO 2 ), titanium dioxide (TiO 2 ), and poly(1,5-diaminoanthraquinone) (PDAAQ) with the L-GO binder on the GF separator was investigated with a polycarboxylate-functionalized graphene (PC-FGF/S) cathode and a Li metal anode. The cells with modified coatings and L-GO as an efficient binder could accelerate conversion of long-chain polysulfides to short-chain polysulfides and significantly suppress the polysulfide dissolution, resulting in capacity retentions of ∼1020, 1070, and 1190 mAh g −1 for the cells with SiO 2 /L-GO-, TiO 2 /L-GO-, and PDAAQ/L-GO-coated separators after 100 cycles. The results demonstrate that ultrathin SiO 2 -, TiO 2 -, and PDAAQ-containing coatings with the L-GO binder on the GF separator can drastically improve the cyclability of the Li-S cells even after a long cycling life.

show abstract

“…As shown in Figure c, the peak at 299.1, 434.8, and 544.9 eV for the PDAAQ/L-GO-coated GF separator can be assigned to C1s, N1s, and O1s, respectively. − …”

Section: Resultsmentioning

confidence: 96%

Application of Facile Graphene Oxide Binders with Nanocomposites for Efficient Separator Performance in Lithium Sulfur Batteries

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The boron (B) dopant with positive polarization in the TiO 2 structure is inserted as an interlayer on a glass fiber separator. The B-doped (at 1% and 5%) TiO 2 -coated separators with the as-prepared electrolyte delivered higher capacities of 1001 and 1293 mA h g À1 , respectively, after 100 cycles at 1 C after 100 cycles 140 (Fig. 26).…”

Section: Electrolyte Additivesmentioning

confidence: 98%

History and recent developments in divergent electrolytes towards high-efficiency lithium–sulfur batteries – a review

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The addition of functional groups to the carbonous framework, such as O, N, B, and S, is thought to improve polysulfide adsorption via chemical bonding and physical limitation. As a result of their potential to tackle the problems of Li–S batteries, novel coatings on GF and polar host composite cathodes have received increased attention in recent research. − Several attempts have been undertaken in the literature to inhibit polysulfide diffusion and, thereby, boost the electrochemical performance of Li–S cells and cell stability, which may be described as follows: (1) Distinct dopants in coatings have different effects on the cathode-facing side of PP, PE, and GF separators: The addition of polar nanoparticles to the separator creates a porous network that allows the electrolyte to be taken in and penetrated more easily. The structure of this new coating acts as a polysulfide trap site and restricts polysulfides to the cathode–separator interface, allowing for increased active material reuse.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Insight into Lithium–Sulfur Batteries with Novel Modified Separators: Recent Progress and Perspectives

Ponnada

Kiai

Gorle³

et al. 2021

Energy Fuels

Self Cite

View full text Add to dashboard Cite

Lithium−sulfur (Li−S) batteries have been found to have sky-scraping theoretical gravimetric energy density and have gained a lot of interest. However, owing to low electrical conductivity, a conducting substance must be coupled with the sulfur cathode. The first important concern in Li−S is diffusion of lithium polysulfides (PSs), resulting in a shuttle linking both the cathode and anode and rapid capacity of degradation. Plating conventional separators is a kind of alleviation of the shuttle issue.To achieve an advanced Li−S battery, understanding of the structure of PSs needs to be considered to design efficient separator coating materials. The main object of this work is to review the most promising recent challenges and address the application of modified coatings on the polypropylene (PP), polyethylene (PE), and glass fiber (GF) separators for high-performance Li−S batteries. The particular focus has been placed on functioning of various functional layers on the surface of PP, PE, and GF, including polymers, carbons, nanomaterials, and their composites. Finally, the polar host materials in the cathode that influence the Li−S performance are summarized.

show abstract

Glass fiber separator coated by boron doped anatase TiO2 for high-rate Li–S battery

Cited by 27 publications

References 55 publications

Application of Facile Graphene Oxide Binders with Nanocomposites for Efficient Separator Performance in Lithium Sulfur Batteries

Application of Facile Graphene Oxide Binders with Nanocomposites for Efficient Separator Performance in Lithium Sulfur Batteries

History and recent developments in divergent electrolytes towards high-efficiency lithium–sulfur batteries – a review

Insight into Lithium–Sulfur Batteries with Novel Modified Separators: Recent Progress and Perspectives

Contact Info

Product

Resources

About