Review
Chemistry, Physical
Lanxin Xue, Yaoyao Li, Anjun Hu, Mingjie Zhou, Wei Chen, Tianyu Lei, Yichao Yan, Jianwen Huang, Chengtao Yang, Xianfu Wang, Yin Hu, Jie Xiong
Summary: This article summarizes the recent applications of in situ/operando Raman techniques for monitoring the real-time variations in Li-S batteries, aiming to reveal the reaction mechanism and guide the design of strategies for improving battery performances.
Article
Chemistry, Multidisciplinary
Daxian Cao, Xiao Sun, Fei Li, Seong-Min Bak, Tongtai Ji, Michael Geiwitz, Kenneth S. Burch, Yonghua Du, Guochun Yang, Hongli Zhu
Summary: The reaction mechanism of sulfur (S-8) in all-solid-state lithium-sulfur batteries (ASLSBs) was investigated through operando Raman spectroscopy and ex situ X-ray absorption spectroscopy. It was found that no Li2S8, Li2S6, and Li2S4 were formed, but Li2S2 was detected. First-principles structural calculations revealed the formation energy of solid state Li2Sn (1=n=8), where Li2S2 was a metastable phase consistent with experimental observations. Partial S-8 and Li2S2 remained at the full lithiation stage, indicating incomplete reaction due to sluggish kinetics in ASLSBs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jiheon Kim, Seong-Jun Kim, Euiyeon Jung, Dong Hyeon Mok, Vinod K. Paidi, Jaewoo Lee, Hyeon Seok Lee, Yunseo Jeoun, Wonjae Ko, Heejong Shin, Byoung-Hoon Lee, Shin-Yeong Kim, Hyunjoong Kim, Ji Hwan Kim, Sung-Pyo Cho, Kug-Seung Lee, Seoin Back, Seung-Ho Yu, Yung-Eun Sung, Taeghwan Hyeon
Summary: In this study, the authors investigate the structural understanding of uniform-sized spinel-type MMO nanoparticles and their contribution to improved oxygen reduction reaction (ORR) activity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Applied
Jingqiang Zheng, Chaohong Guan, Huangxu Li, Yangyang Xie, Junxian Hu, Kai Zhang, Bo Hong, Yanqing Lai, Jie Li, Zhian Zhang
Summary: This study systematically investigates the evolution process of solid sulfur species in lithium-sulfur batteries during cycling. The independent formation and dissolution of bulk solid sulfur species, as well as the transformation of supercooled liquid sulfur to crystalline sulfur, are observed. Based on these observations, a possible reaction mechanism is proposed.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Ayda Rafie, Rhyz Pereira, Ahmad Arabi Shamsabadi, Vibha Kalra
Summary: The synthesis of sulfur-rich copolymers using inverse vulcanization reaction is a practical approach to enhance the stability of sulfur active material in Li-S batteries. In this study, we investigated the electrochemical behavior of sulfur-rich copolymers using in operando FTIR spectroscopy. The results showed that the C-S bond in sulfur copolymers is inactive in the voltage range of Li-S batteries. Additionally, the behavior of the copolymers changed significantly with the increase in monomer weight percentage and decrease in sulfur weight percentage.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Chemistry, Multidisciplinary
Qian Zhao, Qizhen Zhu, Yu Liu, Bin Xu
Summary: MXenes, with their metallic conductivity, strong chemical adsorption ability to polysulfides, and effective catalytic effect, show promising potential for high-performance Li-S batteries. Their use in sulfur cathode, interlayer between cathode and separator, and Li anode can enhance electrochemical performance and address challenges in Li-S battery application.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Marm B. Dixit, Jun-Sang Park, Peter Kenesei, Jonathan Almer, Kelsey B. Hatzell
Summary: This paper highlights the importance of solid-state batteries in achieving electrification of the transportation sector, while also discussing challenges such as electro-chemo-mechanical degradation affecting performance metrics. Characterizing and understanding the solid|solid interfaces in solid-state batteries is crucial for designing high energy density, durable solid-state batteries.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Chunyuan Li, Yaoyao Li, Yuxin Fan, Fan Wang, Tianyu Lei, Wei Chen, Anjun Hu, Lanxin Xue, Jianwen Huang, Chunyang Wu, Chengtao Yang, Yin Hu, Yichao Yan
Summary: This article reviews the progress made in mapping techniques for Li-S batteries, highlighting the various aspects and technical applications to guide future research and improve battery performance.
Article
Chemistry, Multidisciplinary
Chao Ye, Jieqiong Shan, Dongliang Chao, Pei Liang, Yan Jiao, Junnan Hao, Qinfen Gu, Kenneth Davey, Haihui Wang, Shi-Zhang Qiao
Summary: This study reports the catalytic oxidation of K2S on a sulfur host with Co single atoms immobilized on nitrogen-doped carbon. The potassium-sulfur battery exhibited high capacities under high current densities, providing atomic-scale insights for the rational design of highly efficient sulfur hosts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Physical
Mingyue Wang, Zhongchao Bai, Ting Yang, Chuanhao Nie, Xun Xu, Yunxiao Wang, Jian Yang, Shixue Dou, Nana Wang
Summary: Lithium-sulfur batteries have great potential for energy storage systems due to their high theoretical energy density and abundance of sulfur. However, the low actual energy density remains a challenge for their practical applications. This review highlights recent progress in increasing the sulfur loading of Li-S batteries and discusses key materials such as sulfur hosts and separators.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yun Seok Choi, Gwi Ok Park, Kyoung Ho Kim, Yelim Kwon, Joonsuk Huh, Ji Man Kim
Summary: The movement of sulfur species in the cathode of a lithium-sulfur battery was observed directly through operando SAXS analysis. Micropores serve as the primary repository for sulfur before and after the electrochemical reaction, while mesopores act as the actual reaction site for sulfur species. By establishing the distinct properties of the pores, critical insights were gained for the design of advanced carbon cathode materials.
CHEMICAL COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Jian Tan, Mingxin Ye, Jianfeng Shen
Summary: This mini review revisits the controversial issues surrounding LiNO3 as an electrolyte additive in Li-S batteries, provides a comprehensive understanding of the role of LiNO3 in the battery system, and specifically discusses the panoramic view of the solid electrolyte interface film formed by LiNO3 on the surface of Li metal anodes.
MATERIALS HORIZONS
(2022)
Article
Electrochemistry
He Li, John Lampkin, Yu-Chuan Chien, Liam Furness, Daniel Brandell, Matthew J. Lacey, Nuria Garcia-Araez
Summary: The passivation of carbon in lithium-sulfur batteries under lean electrolyte conditions does not severely limit performance. Introducing higher surface area carbon in the sulfur electrode formulation is unnecessary to prevent passivation. The focus of lithium-sulfur development should be directed towards addressing other issues such as undesirable reactions at the lithium electrode and achieving robust sulfur electrode structures.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Daniel Cordoba, Hernan B. Rodriguez, Ernesto J. Calvo
Summary: It has been discovered that the Li-O2 battery, which has the highest energy density comparable to fossil fuels, experiences parasitic reactions leading to degradation of the electrolyte and cathode material. These reactions limit the number of cycles due to the superoxide disproportionation that forms highly reactive singlet oxygen. This study introduces a novel in-operando method using a bifurcated optical fiber to detect singlet oxygen inside the battery during discharge. The detection is based on the reactivity of singlet oxygen with a fluorescent probe, which allows for real-time monitoring of singlet oxygen concentration. Additionally, the addition of azide ions, a well-known quencher of singlet oxygen, improves the cycling performance of Li-O2 batteries.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Chao Yue Zhang, Guo Wen Sun, Zu De Shi, Qian Yu Liu, Jiang Long Pan, Yan Chun Wang, Hao Zhao, Geng Zhi Sun, Xiu Ping Gao, Xiao Jun Pan, Jin Yuan Zhou
Summary: The study focuses on atom-intercalated transition metal disulfides, particularly V-0.25-intercalated VS2 (V5S8), as a promising promoter for lithium-sulfur batteries. The V5S8 nanoflakes display enhanced catalytic properties and improved stability, leading to high specific capacity and low decay rate under various cycling conditions. Furthermore, the V5S8 enables high areal capacity and dynamic flexibility in LSBs, indicating its potential for practical applications.
ENERGY STORAGE MATERIALS
(2021)
