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Advanced Materials for Rechargeable Lithium Batteries II
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Advanced Materials for Rechargeable Lithium Batteries II

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (15 December 2019) | Viewed by 8552

Special Issue Editor

Prof. Dr. Dong-Won Kim

E-Mail Website
Guest Editor
Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
Interests: lithium-ion battery; all-solid-state battery; Li–sulfur battery; Li–air battery; sodium-ion battery; electrochemical capacitor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Lithium–ion batteries (LIBs) have been the most dominant power sources for portable electronic devices for two decades owing to their high energy density and excellent cycle life. They have become essential energy storage devices that profoundly affect our daily life. Recently, their applications have been extended to drone, power tools, electric vehicles, and grid-scale energy storage systems. Even though tremendous progress has been achieved so far, their energy density and safety should still be more improved for further applications. Therefore, emerging solutions and breakthroughs on advanced battery materials are highly required. There has also been a growing research trend towards next-generation lithium batteries, such as lithium–sulfur, lithium–air, and all-solid-state lithium batteries.

This Special Issue aims to provide and share recent research and development on advanced materials for rechargeable lithium batteries, which include current lithium–ion batteries as well as next-generation lithium batteries. Studies on interfacial phenomena, battery safety, cell modeling, and simulation are also welcomed. The contributions in this Special Issue will be of great interest to researchers working in the field of energy conversion and storage and will provide a cornerstone for the continuous development of relevant technologies and specialized technological reinforcement. We welcome diverse contributions from material scientists and engineers from universities, research institutes, and industries in these fields.

Prof. Dr. Dong-Won Kim
Guest Editor

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Keywords

  • Lithium–ion battery
  • Lithium–sulfur battery
  • Lithium–air battery
  • All-solid-state lithium battery
  • Lithium–ion capacitor
  • Battery materials (anode, cathode, electrolyte, separator)
  • Interfacial phenomena
  • Battery design, modeling, simulation, and safety

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Published Papers (2 papers)

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Research

11 pages, 2944 KiB  
Article
Nitrogen and Sulfur Co-Doped Porous Carbon Derived from Thiourea and Calcium Citrate for Lithium-Sulfur Batteries
by Yunju Choi, Sun-Young Lee, Jong-Seong Bae, Sea-Jin Lee, Hyun Kyu Kim, Euh Duck Jeong and Heon-Cheol Shin
Appl. Sci. 2020, 10(4), 1263; https://doi.org/10.3390/app10041263 - 13 Feb 2020
Cited by 6 | Viewed by 4055
Abstract
Lithium-sulfur (Li-S) batteries have shown a high theoretical specific capacity of 1675 mAh g−1. However, amongst the issues they have, the low electron conductivity of sulfur and its dissolution represent the biggest challenge limiting its practical applications. This contributes to the [...] Read more.
Lithium-sulfur (Li-S) batteries have shown a high theoretical specific capacity of 1675 mAh g−1. However, amongst the issues they have, the low electron conductivity of sulfur and its dissolution represent the biggest challenge limiting its practical applications. This contributes to the low utilization of the active sulfur at the cathode—a phenomenon known as the “shuttling effect.” To overcome these limitations, some strategies such as physical confinement (sulfur–carbon composite), chemical adsorption (N and/or S doping) electrolyte design, and separator design have already been proposed. Calcium citrate is the most attractive carbon source because no activation process is necessary and the fabrication process is very simple. In this experiment, we synthesized calcium citrate and sulfur (S) to conduct a charging–discharging test and compared them by adding thiourea (TU) as well as S in the carbonized calcium citrate (CaC). This effective and simple technique for material production can accommodate the charge/discharge reactions and preserve the structure over long cycles. A CaC/TU-S composite is acceptable for an initial discharge capacity of 1051.6 mAh g−1 over 100 cycles at 1 C. The results show that the CaC-S and CaC/TU-S composites have a good, stable specific capacity. Full article
(This article belongs to the Special Issue Advanced Materials for Rechargeable Lithium Batteries II)
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13 pages, 5473 KiB  
Article
Effect of the Pillar Size on the Electrochemical Performance of Laser-Induced Silicon Micropillars as Anodes for Lithium-Ion Batteries
by Xueyuan Yang, Naoki Tachikawa, Yasushi Katayama, Lin Li and Jiwang Yan
Appl. Sci. 2019, 9(17), 3623; https://doi.org/10.3390/app9173623 - 3 Sep 2019
Cited by 8 | Viewed by 4023
Abstract
Silicon micropillars with tunable sizes are successfully fabricated on copper foils by using nanosecond-pulsed laser irradiation and then used as anodes for lithium-ion batteries. The size of the silicon micropillars is manipulated by using different slurry layer thicknesses ranging from a few microns [...] Read more.
Silicon micropillars with tunable sizes are successfully fabricated on copper foils by using nanosecond-pulsed laser irradiation and then used as anodes for lithium-ion batteries. The size of the silicon micropillars is manipulated by using different slurry layer thicknesses ranging from a few microns to tens of microns. The effects of the pillar size on electrochemical properties are thoroughly investigated. The smaller the pillars, the better the electrochemical performance. A capacity of 1647 mAh g−1 at 0.1 C current rate is achieved in the anode with the smallest pillars, with 1215, 892, and 582 mAh g−1 at 0.2, 0.5, and 1.0 C, respectively. Although a significant difference in discharge capacity is observed in the early period of cycling among micropillars of different sizes, this discrepancy becomes smaller as a function of the cycle number. Morphological studies reveal that the expansion of micropillars occurred during long-term cycling, which finally led to the formation of island-like structures. Also, the formation of a solid electrolyte interphase film obstructs Li+ diffusion into Si for lithiation, resulting in capacity decay. This study demonstrates the importance of minimizing the pillar size and optimizing the pillar density during anode fabrication. Full article
(This article belongs to the Special Issue Advanced Materials for Rechargeable Lithium Batteries II)
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