Article
Chemistry, Physical
Jiayi Li, Yizhuo Zhang, Rong Shang, Chen Cheng, Yan Cheng, Jianxin Xing, Zhenzhen Wei, Yan Zhao
Summary: Advancements in separator technology for lithium-ion batteries have been developed to ensure safety, service life, and user experience. The focus is on incorporating thermal shutdown functions to prevent safety issues caused by elevated temperatures. Growing demand for recycling and sustainability has led to the development of functional separators with irreversible or reversible thermal shutdown ability for future utility and manufacture.
ENERGY STORAGE MATERIALS
(2021)
Article
Engineering, Chemical
Longhui Li, Mengyuan Zhou, Ruoyu Xiong, Xuyang Wang, Guancheng Shen, Shuang Sun, Yifu Chen, Tianlun Huang, Huamin Zhou, Yun Zhang
Summary: The study presents a high-safety lithium-ion battery separator with a thermal shutdown function to prevent thermal runaway. The separator is fabricated through dip-coating and thermally induced phase separation, and exhibits improved ionic conductivity and discharge capacity compared to commercial polyolefin separators. The EVA/PEEK/EVA separator ensures the safety of LIBs without sacrificing electrochemical performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Tingting Gao, Peng Tian, Qianjin Xu, Hongchang Pang, Junwei Ye, Guiling Ning
Summary: A study found that by adjusting hydrothermal temperatures, a class of boehmite particles with different grain sizes was synthesized and used to fabricate boehmite/polyacrylonitrile (BM/PAN) membranes. All of these BM/PAN membranes can maintain excellent thermal dimensional stability above 200 degrees C and have good electrolyte wettability and high porosity. Compared with Celgard 2325, lithium-ion batteries assembled with the best BM/PAN separator exhibit different thermal stability phenomena at 150 degrees C and have excellent rate performance and cycle stability at room temperature.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Yao Li, Jin Long, Yun Liang, Jian Hu
Summary: A thermal shutdown separator with a tri-layer nonwoven structure has been developed in this study to improve the safety of lithium-ion batteries. The separator exhibits a thermal shutdown function at 135 degrees C, providing enhanced thermal stability and a wide temperature range for shutdown, thus enhancing battery safety.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Composites
Liying Wang, Yuhan Liu, Xinwei Du, Xiaohui Guo, Qi Zhao, Yuliang Wang, Zhangnan Li, Baijun Liu, Zhaoyan Sun, Yongfeng Men, Wei Hu
Summary: To overcome the limitations of polyethylene separator for lithium-ion batteries, a composite solution of poly(ether ketone) and carbon nanoparticles obtained from nanocellulose carbonization in sulfuric acid was used to modify the separator. The resulting Janus composite separator exhibited high thermal stability, excellent electrolyte loading rate, and improved battery performance. The introduction of carbon nanoparticles provided additional oxidation sites and enhanced ion conductivity, reducing charge transfer resistance.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Binxuan Xie, Shimou Chen, Yong Chen, Lili Liu
Summary: A sandwich gel polymer electrolyte (SGPE) with a thermal shutdown function was developed in this study to address safety issues in lithium-ion batteries. By adjusting the surface pore size, lithium dendrite growth was suppressed and the SGPE demonstrated high safety in overheating conditions. This design also allowed for effective lithium ion transport regulation, resulting in stable lithium anode and promising approach to high safety lithium metal batteries.
Review
Biochemistry & Molecular Biology
Ao Li, Anthony Chun Yin Yuen, Wei Wang, Ivan Miguel De Cachinho Cordeiro, Cheng Wang, Timothy Bo Yuan Chen, Jin Zhang, Qing Nian Chan, Guan Heng Yeoh
Summary: With the widespread applications of lithium-ion batteries in portable electronics and electric vehicles, the properties of separators have become crucial in ensuring battery safety and performance. Recent advancements in applied materials have led to research progress in enhancing the electrical, fire, and explosion prevention performances of battery separators. Future directions in battery separator research are also being explored to further improve battery safety and performance.
Article
Engineering, Chemical
Shou-Zhan Li, Lei Ding, Feng Yang, Tong Wu, Fang Lan, Ya Cao, Ming Xiang
Summary: In this study, a trilayer separator with shutdown property is prepared to prevent thermal runaway in batteries. The separator is made through a facile dry process with biaxial stretching, with a low softening temperature component that closes the microporous structure at a relatively low temperature. The trilayer separator exhibits similar performance to the pure separator and offers a simple, environmentally friendly, and cost-effective method for mass fabrication of high-function separators.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Kecong Yang, Zelin Liu, Jingchao Chai, Yun Zheng, Xiangnan Fu, Yang Huan Shen, Jia Chen, Zhihong Liu, Shengwei Shi
Summary: This study aims to improve the thermal stability and safety of lithium-ion batteries (LIBs) by using polyimide/poly(vinylidene fluoride)-co-hexafluoropropylene (PI/PVDF-HFP) composite separator. The composite separator has higher porosity, better electrolyte uptake, and superior wetting properties, which contribute to reduced interfacial impedance and improved ion conductivity. It also exhibits excellent flame retardancy and negligible thermal shrinkage.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Jiahui Chen, Tianxing Kang, Yan Cui, Jianjun Xue, Hanliang Xu, Junmin Nan
Summary: The study demonstrates that the glass fiber/polyacrylate (GFP) separator has better thermal stability, electrolyte wettability, and electrochemical performance in lithium-ion batteries compared to traditional polyolefin separators. The GFP separator can effectively inhibit overheating reactions in batteries and enhance cycling performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhaoyi Wang, Xiaogang Li, Nanxi Dong, Bingxue Liu, Guofeng Tian, Shengli Qi, Dezhen Wu
Summary: In this study, a high-temperature stable and wettability-enhanced polyethylene composite separator was designed by coating it with zirconia@polyimide core-shell nano-microspheres. The (ZrO2@PI)/PE separator exhibited lower density, improved thermal stability, and enhanced electrolyte wettability compared to commercial separators. It demonstrated enhanced cycle performance and thermal safety, making it a promising candidate for high-energy density and high-security lithium-ion batteries.
MATERIALS TODAY ENERGY
(2022)
Article
Energy & Fuels
Dean Chou, Yu-Hao Cheng
Summary: This study investigates the mechanical response of a battery separator and its impact on battery performance. Simulating the displacement and pore pressure of the separator under different charge/compression rates, it is found that the stress-strain curve of the separator exhibits a wave pattern in the fully dynamic model, while this phenomenon is not observed in the quasi-static model. The maximum displacement and pore pressure increase with the compression rate, and the pore pressure fluctuates during compression in the fully dynamic model.
JOURNAL OF ENERGY STORAGE
(2022)
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, 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
Sohee Kim, Mi-Sook Kwon, Jae Hee Han, Jinok Yuk, Jang Yong Lee, Kyu Tae Lee, Tae-Ho Kim
Summary: A thermally stable and shutdown-enabled PIE tri-layer separator was fabricated for sodium-ion battery applications, demonstrating excellent thermal stability, high ionic conductivity, and promising potential as a candidate separator for SIBs.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)