Polyethylene Terephthalate-Based Materials for Lithium-Ion Battery Separator Applications: A Review Based on Knowledge Domain Analysis

Xie, Kefeng; Yu, Sanchuan; Wang, Ping; Chen, Peng

doi:10.1155/2021/6694105

Cited by 9 publications

(2 citation statements)

References 113 publications

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“…PET is also used as separator material, electrode coating, and organic electrode material in the academic literature. 4 For all these applications, the chemical stability of PET plays an important role, but has not been investigated. Recently, Logan et al 5 and Büchele et al 6 showed that lithium-ion batteries with LiFePO4 (LFP) or LiNi1-x-yMnxCoyO2 (NMC) positive electrodes and graphite negative electrodes are prone to rapid self-discharge at elevated temperature unless effective electrolyte additives are used.…”

mentioning

confidence: 99%

Improving lithium-ion cells by replacing polyethylene terephthalate jellyroll tape

Adamson,

Tuul,

Bötticher

et al. 2023

Nat. Mater.

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Polyethylene terephthalate (PET) tape is widely used by well-known lithium-ion battery manufacturers to prevent electrode stacks from unwinding during assembly. PET tape is selected since it has suitable mechanical and electrical properties, but its chemical stability has been largely overlooked. In the absence of effective electrolyte additives, PET can depolymerize into its monomer dimethyl terephthalate (DMT), which is an unwanted redox shuttle that induces significant self-discharge in a lithium-ion cell. This study presents a chemical screening experiment to probe the PET decomposition mechanism involving in situ generated methanol and lithium methoxide from dimethyl carbonate, one of the most common electrolyte solvents in lithium-ion cells. By screening other polymers, it is found that polypropylene (PP) and polyimide (Kapton) are stable in the electrolyte. Finally, it is demonstrated that reversible self-discharge of LiFePO4/graphite cells can be virtually eliminated by replacing PET jellyroll tape with chemically stable PP tape.

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mentioning

confidence: 99%

Improving lithium-ion cells by replacing polyethylene terephthalate jellyroll tape

Adamson,

Tuul,

Bötticher

et al. 2023

Nat. Mater.

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“…The node color represents the co-occurrence time, and the darker the color indicates the later the co-occurrence time. The centrality, on the other hand, can be used to measure whether the node assumes the role of a hub within the research domain (Centrality >0.1 is considered to be more central), thus helping to infer research hotspots [122,123]. So, by combining the tables in Figure 8, we can find that keywords such as flame retardant, mechanical property, performance, composite, epoxy resin, nanocomposite, and conductivity have a high frequency and centrality.…”

Section: Research Hotspots Analysismentioning

confidence: 99%

Insights into Ionic Liquids for Flame Retardant: A Study Based on Bibliometric Mapping

Pan

Wang

et al. 2023

Safety

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Fire is a typical disaster in the processing industry. Ionic liquids, as a type of green flame retardant, play an important role in process safety. In order to grasp the current research status, hotspots, and frontiers in the field of ionic liquids in flame retardancy, the bibliometric mapping method is applied to study the relevant literature in Web of Science datasets from 2000–2022 in this paper. The results show that the research on ionic liquids in flame retardancy is multidisciplinary and involves some disciplines such as energy science, material science, and environmental protection. Journal of Power Sources, Polymer Degradation and Stability, ACS Applied Materials and Interfaces, and Chemical Engineering Journal are the core journals in the field. The results of keyword co-occurrence indicate that the hotspots of research can be divided into five components: the improvement and application of pure ionic liquids electrolytes, the research of gel polymer electrolytes, applying ionic liquids to enhance the polymer materials’ flame retardancy properties, utilizing ionic liquids and inorganic materials to synergize flame retardant polymers, and using ionic liquids flame retardant to improve material’s multiple properties. The burst terms and time zone diagram’s results point out the combination of computational quantum chemistry to study the flame retardancy mechanism of ionic liquids, the study of fluorinated electrolytes, ionic liquids for smoke suppression, phosphorus-containing ionic liquids for flame retardant, and machine learning-assisted design of ILs flame retardants are the research frontiers and future research trends.

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Thermal Stability and Electrochemical Properties of Separators for Lithium-ion Batteries

Yi,

Xu,

Liu

et al. 2023

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Polyethylene Terephthalate-Based Materials for Lithium-Ion Battery Separator Applications: A Review Based on Knowledge Domain Analysis

Cited by 9 publications

References 113 publications

Improving lithium-ion cells by replacing polyethylene terephthalate jellyroll tape

Improving lithium-ion cells by replacing polyethylene terephthalate jellyroll tape

Insights into Ionic Liquids for Flame Retardant: A Study Based on Bibliometric Mapping

Thermal Stability and Electrochemical Properties of Separators for Lithium-ion Batteries

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