A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery

Choi, Young Jin; Kim, Sung Hyun; Park, Sang Choul; Shin, Dong Hyun; Kim, Dong Hun; Kim, Ki Won

doi:10.4028/www.scientific.net/msf.544-545.945

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Thus, a discharge capacity of 1520 mAh g –1 and 325 mAh g –1 can be delivered in the first cycle at 0.2 C and in the 1000th cycle at 4 C at 80 °C. Other fillers, such as graphene oxide (GO), Acetylene Black (AB), montmorillonite (MMT), ceramic materials (Li 7 La 3 Zr 2 O 12 ), etc., have been also investigated. Besides, the PEO can form wrinkled structures by cross-linking and then reduce the crystallinity and improve the mechanical strength.…”

Section: Solid-state Polymer Electrolytes (Spes)mentioning

confidence: 99%

Electrolyte Issues in Lithium–Sulfur Batteries: Development, Prospect, and Challenges

Liu

Sun

et al. 2021

Energy Fuels

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Lithium–sulfur (Li–S) batteries have attracted great attention in the past two decades, because of their high theoretical energy density of 2600 Wh kg–1 and the cost-effective sulfur cathode. However, it is still far from commercialization, unlike that of lithium-ion batteries. Although numerous research has been presented on the sulfur cathode, lithium metal anode, separator modification, intercalated layer within the cell configuration, electrolyte design, the problematic issues of the polysulfide shuttling effect cannot be solved effectively. In this Review, we summarize that most challenges in the Li–S battery have involved the electrolyte. The development of Li–S battery electrolytes was discussed from the components of salt, solvent, additives, then the current idea of electrolyte designs including the solid electrolytes was also summarized. This Review aims to give a comprehensive and depth viewpoint on the development, prospect, and challenges of Li–S battery electrolytes.

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Section: Solid-state Polymer Electrolytes (Spes)mentioning

confidence: 99%

Electrolyte Issues in Lithium–Sulfur Batteries: Development, Prospect, and Challenges

Liu

Sun

et al. 2021

Energy Fuels

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Progress and Perspective of Solid‐State Lithium–Sulfur Batteries

Lei

Shi

et al. 2018

Adv Funct Materials

212

154

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Due to high energy density, low cost, and nontoxicity, lithium-sulfur (Li-S) batteries are considered as the most promising candidate to satisfy the requirement from the accelerated development of electric vehicles. However, Li-S batteries are subjected to lithium polysulfides (LiPSs) shuttling due to their high dissolution in liquid electrolyte, resulting in low columbic efficiency and poor cycling performance. Moreover, the Li metal as an indispensable anode of Li-S batteries shows serious safety issues derived from the lithium dendrite formation. The replacement of liquid electrolytes with solid-state electrolytes (SSEs) has been recognized as a fundamental approach to effectively address above problems. In this review, the progress on applying various classes of SSEs including gel, solid-state polymer, ceramic, and composite electrolytes to solve the issues of Li-S batteries is summarized. The specific capacity of Li-S batteries is effectively improved due to the suppression of LiPSs shuttling by SSEs, while the rate and cycling performance remain relatively poor owing to the limited ionic conductivity and high interfacial resistance. Designing smart electrode/electrolyte integrated architectures, enabling the high ionic transportation pathway and compatible electrode/electrolyte interface, may be an effective way to achieve high performance solid-state Li-S batteries. and strategies have been attempted to address the above main issues of Li-S batteries, including using sulfur host materials, [4] unique separators [5] and interlayer, [6] composite of electrolyte, [7] novel binders, [8] etc. However, these approaches can only solve problems to a certain extent. Some review papers have concluded and commented on above potential solutions. [9] Recently, solid-state electrolytes (SSEs) including gel, solid-state polymer, ceramic, and composite electrolytes are attracting increasing interest for application in Li-S batteries to fundamentally solve the issues of Li-S batteries caused by liquid electrolyte. Furthermore, nonflammable solid electrolytes would improve the safety performance of Li-S batteries remarkably. In the past few years, more and more research work focused on applying SSEs in Li-S batteries to solve the LiPSs dissolution. [10] Some review papers about Li-S batteries have also emphasized the significance of SSEs. However, until now, there are few review papers specially summarizing the progress and prospect of the solid-state Li-S batteries.This review aims to provide an overview of SSEs for addressing the major drawbacks of Li-S batteries, including the electrochemical reaction process of S cathode and its corresponding problems as well as traditional solutions, the recent research progress of solid-state Li-S batteries using gel, solidstate polymer, ceramic, and composite electrolytes, and strategies for overcoming the deficiencies of solid-state electrolytes such as low room-temperature ionic conductivity and high Solid-State Electrolytes interfacial resistance. In addtition, the mechanism a...

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Electrolytes for lithium–sulfur batteries

Maurya

Angaiah

2022

Lithium-Sulfur Batteries

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A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery

Cited by 3 publications

References 4 publications

Electrolyte Issues in Lithium–Sulfur Batteries: Development, Prospect, and Challenges

Electrolyte Issues in Lithium–Sulfur Batteries: Development, Prospect, and Challenges

Progress and Perspective of Solid‐State Lithium–Sulfur Batteries

Electrolytes for lithium–sulfur batteries

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