Article
Polymer Science
Seok Hyeon Kang, Hwan Yeop Jeong, Tae Ho Kim, Jang Yong Lee, Sung Kwon Hong, Young Taik Hong, Jaewon Choi, Soonyong So, Sang Jun Yoon, Duk Man Yu
Summary: In this study, a polyacrylonitrile-based nanoporous composite membrane with aluminum diethylphosphinate (ADEP) was developed for use as a heat-resistant and flame-retardant separator in lithium-ion batteries. The ADEP compound effectively enhanced the flame retardancy of the membrane and increased the safety level of the batteries. The composite membrane also exhibited higher ionic conductivity and electrolyte uptake compared to commercial membranes, resulting in improved battery performance.
Article
Chemistry, Physical
Xingyi Zhang, Qingwei Sun, Cheng Zhen, Yinghua Niu, Yupei Han, Guangfeng Zeng, Dongjiang Chen, Chao Feng, Ning Chen, Weiqiang Lv, Weidong He
Summary: This review summarizes recent developments towards highly flame-retardant separators and solid-state electrolytes for lithium-ion batteries, including the composition, structure, and performance of flame-retardant separators for liquid LIBs, as well as different types of solid-state electrolytes. Future challenges and outlooks for flame-retardant separators in practical applications are also discussed.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Maria Carter, Mihit H. Parekh, Vikas Tomar, J. Eric Dietz, Vilas G. Pol
Summary: Lithium-ion batteries are widely used in various applications due to their desirable energy storage characteristics, but they are prone to thermal runaway. By using vermiculite as a separator lining, the battery demonstrated enhanced safety by releasing less exothermic energy during thermal runaway and having a higher separator melting temperature.
APPLIED CLAY SCIENCE
(2021)
Article
Polymer Science
Yajie Li, Haicun Yang, Azita Ahmadi, Aziz Omari, Hongting Pu
Summary: In this study, multilayer separators with high thermal stability and flame retardancy are efficiently prepared by blending heat resistant reinforcing component with PP and PE. The prepared separators exhibit good dimensional stability, flame retardancy, and a wide shutdown temperature window, making them suitable for high-power batteries.
Article
Chemistry, Multidisciplinary
Lien-Yang Chou, Yusheng Ye, Hiang Kwee Lee, Wenxiao Huang, Rong Xu, Xin Gao, Renjie Chen, Feng Wu, Chia-Kuang Tsung, Yi Cui
Summary: A feasible method has been developed to balance flame retardancy and electrochemical performance on commercial battery separators by coating an electrolyte-insoluble flame retardant. The composite separator showed four times better flame retardancy than conventional polyolefin separators in full pouch cells, and it can be easily fabricated on a large scale for industrial applications. High-energy-density batteries (2 Ah) assembled with the composite separator confirmed its enhanced safety through nail penetration tests.
Article
Engineering, Environmental
Youngjoon Roh, Dongyoung Kim, Dahee Jin, Dohwan Kim, Cheolhee Han, Jaecheol Choi, Hochun Lee, Young-Gi Lee, Yong Min Lee
Summary: The development of a functional flame-retardant and ceramic-coated separator (F-CCS) in this study enhances the safety and reliability of lithium-ion batteries (LiBs), providing a promising solution for high-energy-density applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Boyang Huang, Haiming Hua, Longqing Peng, Xin Wang, Xiu Shen, Ruiyang Li, Peng Zhang, Jinbao Zhao
Summary: Functional separators in lithium-ion batteries are crucial for handling risks in complex application scenarios. This study developed a functional separator based on phosphonate-modified nano-scale silica ceramic particles to enhance thermal stability and flame resistance, reducing safety risks in LIBs. The modified separator showed improved performance in terms of thermal stability, flame resistance, and capacity retention in battery cycles.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Multidisciplinary
Junxian Hou, Li Wang, Xuning Feng, Junpei Terada, Languang Lu, Shigeaki Yamazaki, Anyu Su, Yoshiko Kuwajima, Yongjiang Chen, Tomoya Hidaka, Xiangming He, Hewu Wang, Minggao Ouyang
Summary: This study finds that while flame-retardant fluorinated electrolytes help reduce the flammability of lithium-ion batteries, they still undergo thermal runaway and exhibit a different pathway compared to batteries using conventional electrolytes. The reduction in fluorinated components in fully lithiated graphite leads to a significant release of heat, triggering chain reactions.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Paper & Wood
Mononita Das, Pradip Sekhar Das, Rajendra Nath Basu, Mir Wasim Raja
Summary: This research focuses on developing a sustainable separator for lithium-ion batteries by functionalizing low-cost cellulose-based commercial paper. The developed paper separator shows superior thermal stability, excellent electrolyte wettability, and satisfactory mechanical strength. It exhibits comparable electrochemical performance to commercial polypropylene-based separators and is compatible with various commercial electrodes. Additionally, the functionalized cellulose-ceramic composite paper separator shows excellent flame retardant properties.
Article
Chemistry, Physical
Lupeng Zhang, Xinle Li, Mingrui Yang, Weihua Chen
Summary: This review highlights the importance of safety in lithium-ion and sodium-ion batteries, with a focus on the development of high-safety separators. It summarizes the key considerations for these separators and outlines the challenges and perspectives in their development direction.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Kai Zhang, Haizhen Chen, Huiqin Huang, Zhenzhen Wei, Yan Zhao
Summary: In this study, a composite separator (BLA) was fabricated by introducing a highly water-soluble APP into a BC dispersion with a mixed solution of LPC. The incorporation of LPC not only improves the tensile strength of BC, but also enhances the flame retardant function of the separator. The BLA membrane has a micro-nano porous structure, high porosity, and electrolyte uptake, which contributes to its outstanding cycling stability and capacity retention in lithium batteries.
JOURNAL OF POWER SOURCES
(2023)
Review
Chemistry, Multidisciplinary
Zhenhai Gao, Shun Rao, Tianyao Zhang, Fei Gao, Yang Xiao, Longfei Shali, Xiaoxu Wang, Yadan Zheng, Yiyuan Chen, Yuan Zong, Weifeng Li, Yupeng Chen
Summary: The development of electric vehicles relies on addressing battery fire hazards, and encapsulating thermal runaway retardants (TRRs) is a promising approach to improve safety without compromising performance, showing potential for practical application.
Review
Chemistry, Multidisciplinary
Miaomiao Su, Guang Huang, Suqing Wang, Yanjie Wang, Haihui Wang
Summary: Lithium-ion batteries (LIBs) are currently the dominant mobile power sources, with safety being the main issue restricting the development of high energy density LIBs. Researchers are focusing on the development of various multi-functional safe separators to enhance the safety and performance of batteries, while also providing future directions and challenges for next-generation high-safety and high energy density rechargeable lithium batteries.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Engineering, Chemical
Yang Wang, Minhao Guo, Hui Fu, Zhenzhong Wu, Yizhe Zhang, Guojie Chao, Suli Chen, Longsheng Zhang, Tianxi Liu
Summary: This article presents a facile and scalable strategy to prepare thermotolerant separators of cross-linked PI fibers with a narrowed pore size via blended electrospinning and thermal imidization. The resulting separator exhibits higher porosity, better electrolyte adsorption, and higher ionic conductivity, leading to greatly enhanced electrochemical performance in lithium-ion batteries.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Yunlong Yang, Zilin Chen, Tian Lv, Keyi Dong, Yanan Liu, Yunlong Qi, Shaokui Cao, Tao Chen
Summary: In this study, a flame-retardant separator derived from boron nitride (BN) aerogel was developed for lithium-ion batteries (LIBs). The BN/BC composite aerogel exhibited excellent flame-retardant performance, electrolyte-wetting ability, and high mechanical property. The LIBs using the BN/BC composite aerogel as the separator showed high specific discharge capacity and excellent cyclic performance. Rating: 8/10
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Chemical
Sang-Don Han, Hong-Joo Lee, Seung-Hyeon Moon
DESALINATION AND WATER TREATMENT
(2016)
Article
Electrochemistry
Jae-Hun Kim, Jin-Hyun Lee, Sandip Maurya, Sung-Hee Shin, Jae-Young Lee, In Seop Chang, Seung-Hyeon Moon
ELECTROCHEMISTRY COMMUNICATIONS
(2016)
Article
Engineering, Chemical
Ju-Hyuk Lee, Ju-Young Lee, Jae -Hun Kim, Jiyong Joo, Sandip Maurya, Myounghoon Choun, Jaeyoung Lee, Seung-Hyeon Moon
JOURNAL OF MEMBRANE SCIENCE
(2016)
Article
Chemistry, Physical
Beomgyun Jeong, Dongyoon Shin, Myounhoon Choun, Sandip Maurya, Jaeyoon Baik, Bongjin Simon Mun, Seung-Hyeon Moon, Dangsheng Su, Jaeyoung Lee
JOURNAL OF PHYSICAL CHEMISTRY C
(2016)
Article
Engineering, Environmental
Ju-Young Lee, Nantanee Chaimongkalayon, Jinho Lim, Heung Yong Ha, Seung-Hyeon Moon
WATER SCIENCE AND TECHNOLOGY
(2016)
Article
Engineering, Chemical
Dohyeon Lee, Ju-Young Lee, Yekyung Kim, Seung-Hyeon Moon
SEPARATION AND PURIFICATION TECHNOLOGY
(2017)
Article
Engineering, Chemical
Jae-Hun Kim, Seungbo Ryu, Ju-Young Lee, Seung-Hyeon Moon
JOURNAL OF MEMBRANE SCIENCE
(2018)
Article
Green & Sustainable Science & Technology
Dohyeon Lee, Seungbo Ryu, Sung-Hee Shin, Jae-Hun Kim, Seung-Hyeon Moon
JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
(2019)
Article
Energy & Fuels
Seungbo Ryu, Bongho Lee, Jae-Hun Kim, Chanho Pak, Seung-Hyeon Moon
Summary: A pore-filling polytetrafluoroethylene (PTFE)/Nafion composite membrane has been developed for high-temperature operation of proton-exchange membrane fuel cells (PEMFC). The electrical alignment of ion channels in the through-plane direction significantly improves proton conductivity and fuel cell performance at elevated temperatures. The composite membrane demonstrates enhanced thermal stability and proton conductivity, outperforming traditional casting membranes and showing promising potential for use in high-temperature PEMFC applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Jae-Hun Kim, Mungyu Lee, Hoyoung Jeong, Songju Ko, Seung-Hyeon Moon, In Seop Chang
Summary: The study proposes integrating syngas fermentation and electrodialysis (ED) systems to reduce operating costs by reusing nutrients for biocatalyst growth and separating the ionized product, acetate. The use of Eubacterium callanderi KIST612 as a biocatalyst in the ED-integrated process improved acetate titer by 25% and achieved a high extraction rate of acetate. The results suggest that this integrated system can potentially resolve issues of operational expenditure and carbon emissions in the industrial syngas fermentation process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jae-Hun Kim, In Seop Chang, Seung-Hyeon Moon
Summary: The acid-base junction flow battery utilizes neutralization and water dissociation for energy conversion, with the bipolar membrane composed of quaternary aminated poly (2,6-dimethyl-1,4-phenylene oxide) and cation exchange layer showing significantly improved performance, achieving high power density and maintaining high efficiency in long-term operation of 60 cycles.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Jae-Hun Kim, Seungbo Ryu, Sandip Maurya, Ju-Young Lee, Ki-Won Sung, Jae-Suk Lee, Seung-Hyeon Moon
Article
Chemistry, Physical
Seungbo Ryu, Jae-Hun Kim, Ju-Young Lee, Seung-Hyeon Moon
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Multidisciplinary
Sandip Maurya, Sung-Hee Shin, Ju-Young Lee, Yekyung Kim, Seung-Hyeon Moon