Porous 3D nitrogen-doped rGO/Co-Ni-S composite modified separator for high-capacity and stable lithium-sulfur batteries

Wu, Ping; Tan, Long; Wang, Xiaodi; Peng, Liao; Li, Zhi; Hou, Peipei; Zhou, Qun-Yi; Jin, Xin-Jian; Li, Meng-Chao; Shao, Xiang-Rong; Zeng, Zheling; Deng, Shuguang; Dai, Gui-Ping

doi:10.1016/j.materresbull.2021.111550

Cited by 15 publications

(7 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, the electrochemical performance of Li-S batteries with PBO-KOH-S is as excellent as those of Li-S batteries with other separators, such as rGO/Co-Ni-S ( Wu et al, 2022 ), biomass carbon based on N, O co-doped chlorella ( Jin et al, 2021 ) and Co-N-C hollow nanocages ( Jin et al, 2021 ), especially under the current density of 5 C (see Supplementary Table S3 ).…”

Section: Resultsmentioning

confidence: 99%

The effect of different poly fibers separator-modified materials on blocking polysulfides for high performance Li-S batteries

Meng

Sun

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

Herein, we reported that KOH impregnation can generate a large number of porous structures with fruitful nitrogen self-doped groups during the carbonized process for poly (p-phenylene terephthalamide) fiber and poly (p-phenylene benzobisoxazole) fiber (denoted as PPTA and PBO, respectively). The intrinsical insulation, volume change, and shuttle effect of polysulfides then can be more significantly improved for the PBO-coated separator than the PPTA case. The discharge capacity primary achieves 1,322 mA h/g, which retains 827 mA h/g even after 200 cycles at 0.2 C for the cell with PBO-coated separator. The reversible specific discharge capacity maintains 841 mA h/g with a Coulomb efficiency of 99.7% at 5 C. The nitrogen self-doped nanocarbon particles are etched by KOH with the simple one-step preparation, which has promising application as Li-S battery cathode.

show abstract

Section: Resultsmentioning

confidence: 99%

The effect of different poly fibers separator-modified materials on blocking polysulfides for high performance Li-S batteries

Meng

Sun

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…A 26 • broad peak can be ascribed to the (002) facet of the graphite. One can deduce that 53.04 • , 49.03 • , and 32.01 • peaks corresponded to the (200), (220), and (311) CoS 2 facets, respectively [74]. Furthermore, characteristic peaks at 1350 cm −1 (D band) and 1580 cm −1 (G band) as can be observed in the Raman spectra are inferred to have derived from the structural defect and the stretching mode of the C-C bond of graphene, respectively [75].…”

Section: Separator Material: Carbonaceous Materialsmentioning

confidence: 94%

“…Owing to its morphological advantages and LiPS affinity, the LSB exhibited 1524 mAh g −1 at the first discharge and 610 mAh g −1 at 0.1 C and 8 C, respectively. It exhibited good long-term stability, with a 700 mAh g −1 capacity even after 350 cycles under 1 C. It was deduced that nitrogen doping and cobalt nickel, and sulfur nanoparticles in the composite, could provide a favorable electrochemical structure and active sites for capturing soluble LiPS and promote LiPS conversion in redox reactions, thus preventing the shuttle effect [74].…”

Section: Separator Material: Carbonaceous Materialsmentioning

confidence: 99%

Separator Materials for Lithium Sulfur Battery—A Review

Mori

2023

Electrochem

View full text Add to dashboard Cite

In the recent rechargeable battery industry, lithium sulfur batteries (LSBs) have demonstrated to be a promising candidate battery to serve as the next-generation secondary battery, owing to its enhanced theoretical specific energy, economy, and environmental friendliness. Its inferior cyclability, however, which is primarily due to electrode deterioration caused by the lithium polysulfide shuttle effect, is still a major problem for the real industrial usage of LSBs. The optimization of the separator and functional barrier layer is an effective strategy for remedying these issues. In this article, the current progress based on the classification and modification of functional separators is summarized. We will also describe their working mechanisms as well as the resulting LSB electrochemical properties. In addition, necessary performance for separators will also be mentioned in order to gain optimized LSB performance.

show abstract

“…A broad peak at 26° is attributed to the (002) facet of the graphite. The characteristic peaks at 32.01°, 49.03°, and 53.04° correspond to the (200), (220), and (311) CoS2 facets, respectively 68 . As seen in Figure 9d, the Raman spectrum with a characteristic peak at 1350 cm -1 (D band) and a peak at 1580 cm -1 (G band) originated from the structural defect and the stretching mode of the C-C bond of graphene, respectively.…”

Section: Separator Material: Carbonaceous Materialsmentioning

confidence: 99%

Separator Materials for Lithium Sulfur Battery-A Review

MORI

2023

Preprint

View full text Add to dashboard Cite

In the recent rechargeable battery industry, lithium sulfur batteries (LSBs) have demonstrated promising candidate battery to serve as the next-generation secondary battery owing to its enhanced theoretical specific energy, economy, and environmental friendliness. Its inferior cyclability, however, which is primarily due to electrode deterioration caused by the lithium polysulfide shuttle effect, is still a major problem for the real industrial usage of LSBs. Optimization of the separator and functional barrier layer is an effective strategy for remedying these issues. In this article, the current progress based on classification and modification on functional separator is summarized. We will also describe their working mechanisms as well as the resulting LSB electrochemical properties. In addition, necessary performance for separators also will be mentioned in order to gain optimized LSB performance.

show abstract

Porous 3D nitrogen-doped rGO/Co-Ni-S composite modified separator for high-capacity and stable lithium-sulfur batteries

Cited by 15 publications

References 33 publications

The effect of different poly fibers separator-modified materials on blocking polysulfides for high performance Li-S batteries

The effect of different poly fibers separator-modified materials on blocking polysulfides for high performance Li-S batteries

Separator Materials for Lithium Sulfur Battery—A Review

Separator Materials for Lithium Sulfur Battery-A Review

Contact Info

Product

Resources

About