Enhancement of electrochemical performances of Li-S batteries using PPESK and Nelumbo nucifera derived porous carbon modified separator

Mathivanan, Tamilarasan; Panjulingam, Nandhini; Dolui, Subrata; Lakshmipathi, Senthilkumar; Banerjee, Sanjib; Selvan, R. Kalai

doi:10.1016/j.matlet.2022.131935

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…The average pore size of the corn silk-based carbon was 2.05 nm, which is the optimal pore size to accommodate sulfur, and the specific surface area reached 2554 m 2 g À 1 . In addition, Mathivanan et al [78] combined porous carbon (BMC) prepared from lotus root with polyphthalein ether sulfone ketone (PPESK) copolymer as a coating material (Figure 10d) to alter the glass fiber film (GF). BMC has the properties of massive pore size and porosity.…”

Section: Physical Blockingmentioning

confidence: 99%

Biomass Separators as a “Lifesaver” for Safe and Long‐Life Lithium Metal Batteries

Bao,

Song,

Tian

et al. 2023

Chemistry A European J

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The growth of lithium dendrites and the shuttle of polysulfides in lithium metal batteries (LMBs) have hindered their development. In LMBs, the cathode and anode are separated by a separator, although this does not solve the battery's issues. The use of biomass materials is widespread for modifying the separator due to their porous structure and abundant functional groups. LMBs perform more electrochemically when lithium ions are deposited uniformly and polysulfide shuttling is reduced using biomass separators. In this review, we analyze the growth of lithium dendrite and the shuttle of polysulfide in LMBs, summarize the types of biomass separator materials and the mechanisms of action (providing mechanical barriers, promoting uniform deposition of metal ions, capturing polysulfides, shielding polysulfide). The prospect of developing new separator materials from the perspective of regulating ion transport and physical sieving efficiency as well as the application of advanced technologies such as synchrotron radiation to characterize the mechanism of action of biomass separators is also proposed.

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Section: Physical Blockingmentioning

confidence: 99%

Biomass Separators as a “Lifesaver” for Safe and Long‐Life Lithium Metal Batteries

Bao,

Song,

Tian

et al. 2023

Chemistry A European J

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“…At present, carbon materials, polymers, metals, and metal compounds are widely used in Li-S battery separator modification and functional sandwich designs intended to solve the problem of the shuttle effect [20,21]. Multifunctional separators that have been used in Li-S batteries include the following: carbon-modified [22,23], polymermodified [24][25][26], oxide-modified [27][28][29], and metal-sulfide-modified separators [30,31]. Compared with other modification methods, carbon materials have a large specific surface area and good electrical conductivity, can adsorb polysulfides to inhibit the shuttle effect, and can also play the role of the upper collector to promote rapid electron transport and enhance the utilization of active substances [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Preparation of GO/Diatomite/Polyacrylonitrile Functional Separator and Its Application in Li–S Batteries

Yang,

Xiao,

et al. 2024

Materials

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Lithium–sulfur (Li–S) batteries have received extensive attention due to their numerous advantages, including a high theoretical specific capacity, high energy density, abundant reserves of sulfur in cathode materials, and low cost. Li–S batteries also face several challenges, such as the insulating properties of sulfur, volume expansion during charging and discharging processes, polysulfide shuttling, and lithium dendritic crystal growth. In this study, a composite of a porous multi-site diatomite-loaded graphene oxide material and a PAN fiber membrane is developed to obtain a porous and high-temperature-resistant GO/diatomite/polyacrylonitrile functional separator (GO/DE/PAN) to improve the electrochemical performance of Li–S batteries. The results show that the use of GO/DE/PAN helps to inhibit lithium phosphorus sulfide (LPS) shuttling and improve the electrolyte wetting of the separator as well as the thermal stability of the battery. The initial discharge capacity of the battery using GO/DE/PAN is up to 964.7 mAh g−1 at 0.2 C, and after 100 cycles, the reversible capacity is 683 mAh g−1 with a coulombic efficiency of 98.8%. The improved electrochemical performance may be attributed to the porous structure of diatomite and the layered composite of graphene oxide, which can combine physical adsorption and spatial site resistance as well as chemical repulsion to inhibit the shuttle effect of LPS. The results show that GO/DE/PAN has great potential for application in Li–S batteries to improve their electrochemical performance.

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Biomass derived diverse carbon nanostructure for electrocatalysis, energy conversion and storage

Jiang

et al. 2023

Carbon

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Enhancement of electrochemical performances of Li-S batteries using PPESK and Nelumbo nucifera derived porous carbon modified separator

Cited by 7 publications

References 15 publications

Biomass Separators as a “Lifesaver” for Safe and Long‐Life Lithium Metal Batteries

Biomass Separators as a “Lifesaver” for Safe and Long‐Life Lithium Metal Batteries

Preparation of GO/Diatomite/Polyacrylonitrile Functional Separator and Its Application in Li–S Batteries

Biomass derived diverse carbon nanostructure for electrocatalysis, energy conversion and storage

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