Recent Developments, Applications and Failure Behaviors of Functional Coating Battery Separator

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 2284

Special Issue Editor

Department of Polymer Materials and Engineering, Guangdong University of Technology, Guangzhou 510006, China
Interests: polymer crystallizatlithium battery separator; modification of polymer materials; the mechanism of pion; polymer mechanics; in situ study by SAXS/WAXS

Special Issue Information

Dear Colleagues,

With the advancement of human science and technology, emerging energy devices represented by lithium batteries have developed rapidly. As an important part of the battery, the separator directly affects the function realization and safe service of the lithium battery. Currently, battery separators coated with functional layers on the surface are the mainstream trend in the development of separator products in the world. The new functional coating on the surface of the separator greatly improves the cycle performance of the battery, providing high safety and a long-term service life. It plays a vital role in the improvement of battery performance. At the same time, the separator is also in a complex environment of force, heat and organic solvents during the service process. The aging and damage of the separator also greatly affects the safety of the battery. Therefore, studying and paying attention to the aging behavior of coated separators also have important practical significance.

Therefore, we would like to invite you to submit your original research to this Coatings Special Issue entitled “Recent Developments, Applications and failure behaviors of functional coating battery separator”. The goal of this Special Issue includes all aspects of research related to functional coating separator and its application or failure behavior, including theoretical and application-oriented papers, experimental and numerical studies, case studies, and reviews.

We encourage you to send manuscripts containing scientific findings within the broad fields of battery separators and its application or failure behavior. In particular, the topic of interest includes but is not limited to:

  • Lithium battery separator;
  • Lithium-sulfur battery separator;
  • Zinc battery separator;
  • Heat-resistant coated separator;
  • Flame-retardant coated separator;
  • Separator aging;
  • Puncture damage and lithium dendrites;
  • Fatigue failure;

Dr. Ruijie Xu
Guest Editor

Manuscript Submission Information

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Keywords

  • Lithium battery separator
  • Lithium-sulfur battery separator
  • Zinc battery separator
  • heat-resistant coated separator
  • flame-retardant coated separator
  • separator aging
  • puncture damage and lithium dendrites
  • fatigue failure
  • experimental testing
  • numerical modeling
  • structural fire engineering
  • thermal degradation
  • sustainable coatings

Published Papers (2 papers)

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Editorial

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5 pages, 175 KiB  
Editorial
Advances in Surface Functionalization of Lithium Battery Separators and Their In-Service Process Damage Behavior
by Wang Qian, Yang Chen, Ruijie Xu, Caihong Lei and Dahua Chen
Coatings 2022, 12(11), 1779; https://doi.org/10.3390/coatings12111779 - 21 Nov 2022
Viewed by 1156
Abstract
In recent years, with the rapid development of the lithium battery and energy storage industry, lithium-ion/lithium batteries have received extensive attention and have applications in high-power, portable household and power energy storage [...] Full article

Research

Jump to: Editorial

13 pages, 6035 KiB  
Article
Aging Behavior of Polyethylene and Ceramics-Coated Separators under the Simulated Lithium-Ion Battery Service Compression and Temperature Field
by Wang Qian, Shuqiu Wu, Caihong Lei, Ruijie Xu and Yanjie Wang
Coatings 2024, 14(4), 419; https://doi.org/10.3390/coatings14040419 - 31 Mar 2024
Viewed by 702
Abstract
In this paper, a device was set up, which could simulate the separator environment in the battery to track the influence of compression, temperature, and the electrolyte on the structure and electrochemical performance of separators. A commercial polyethylene separator and alumina- or boehmite-coated [...] Read more.
In this paper, a device was set up, which could simulate the separator environment in the battery to track the influence of compression, temperature, and the electrolyte on the structure and electrochemical performance of separators. A commercial polyethylene separator and alumina- or boehmite-coated separators were selected, and the high-temperature cyclic compression was carried out in a mixed solvent environment with a ratio of vinyl carbonate and diethyl carbonate of 1:1. Compared with that compressed for 50 cycles under room temperature, the compression at 60 °C resulted in pore structure deterioration in the polyethylene separator. The oxidative voltage limit was reduced to 3.6 V, and after 200 charge and discharge cycles, the capacity was reduced by more than 50%. For the coated separator, the presence of a coating layer exhibited some protective effects, and the microporous structure in the base membrane was preserved. The oxidative voltage limit was above 4.2 V. However, as a result of the compression, the coating particles were still inserted into the pore structure, leading to a decrease in porosity and a decrease in discharge capacity, especially at a rate of 4 C. Compared with that coated with alumina particles, the interface resistance for the separator coated with boehmite particles was minimally affected, and the electrochemical performance after cyclic compression under 60 °C was better, exhibiting higher application ability. Full article
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