Thermostable and nonflammable silica–polyetherimide–polyurethane nanofibrous separators for high power lithium ion batteries
Literature Information
Ke Xiao, Jianyong Yu, Jianmao Yang
Safety remains a practical concern in lithium ion batteries (LIBs), which is closely associated with the internal shorting caused by the poor dimensional thermostability at elevated temperature and the flammability of separators. Here, we report a novel strategy to fabricate thermostable and nonflammable silica–polyetherimide–polyurethane (SiO2–PEI–PU) nanofibrous membranes via an electrospinning process. Benefiting from the high porosity, interpenetrating network structure and synergetic effect of silica nanoparticles, PEI and PU, the as-prepared SiO2–PEI–PU membranes exhibit uniform pore size distribution, high ionic conductivity (6.25 mS cm−1) and good electrochemical stability up to 4.86 V. Notably, the hot oven and combustion tests reveal that the SiO2–PEI–PU membranes possess improved thermostability displaying 2% dimensional change after exposure to 170 °C for 0.5 h and flame retardant properties, which could be beneficial for improving the safety of LIBs. Significantly, the SiO2–PEI–PU membrane based Li/LiFePO4 cell exhibits more excellent cyclability delivering a discharge capacity of 158.91 mA h g−1 at the 90th cycle and better rate capability compared with the cell based on the Celgard membrane. Meanwhile, the SiO2–PEI–PU membrane based Li/LiFePO4 cell also shows more excellent cell performance even at an elevated temperature of 60 °C. The results clearly demonstrate that the SiO2–PEI–PU membranes are promising separator candidates, which will also pave the way for further application of nanofibrous membranes in high power LIBs.
Related Literature
Using two photonmicroscopy to quantify enzymatic reaction rates on polymer beads
Annie Y. Bosma, Gail McConnell, John Girkin, Peter J. Halling, Sabine L. Flitsch
DOI: 10.1039/B308078A
Organization of branched rod–coil molecules into a 3-D tetragonally perforated lamellar mesophase
Nam-Keun Oh, Wang-Cheol Zin, Jun-Hwan Im, Ja-Hyoung Ryu, Myongsoo Lee
DOI: 10.1039/B317109D
Rapid synthesis of oligosaccharides using an anomeric fluorous silyl protecting group
Leonardo Manzoni
DOI: 10.1039/B311448A
Efficient electrophilic catalysis of 1,5-anhydrocellobiitol hydrolysis by AlIII; implications for the conservation of “rosin-alum” sized paper
John Baty, Michael L. Sinnott
DOI: 10.1039/B316417A
Noncovalent attachment of oxidenanoparticles onto carbon nanotubes using water-in-oil microemulsions
Jing Sun, Lian Gao, Mikio Iwasa
DOI: 10.1039/B400817K
Synthesis of a quinone-functionalized macrocyclic ligand and the intense fluorescence of its zinc complex
Michael Ruf, William S. Durfee, Cortlandt G. Pierpont
DOI: 10.1039/B401334D
ZnS bubble clusters with onion-like structures
Eleonora Spanó, Said Hamad, C. Richard A. Catlow
DOI: 10.1039/B314104G
UV photopatterning of a highly metallized, cluster-containing poly(ferrocenylsilane)
Alison Y. Cheng, Scott B. Clendenning, Guocheng Yang, Zheng-Hong Lu, Christopher M. Yip, Ian Manners
DOI: 10.1039/B316656B
Exciplex formation between pyrene and guanine in highly polar solvents
Takahiro Kawai, Masashi Ikegami, Tatsuo Arai
DOI: 10.1039/B316315F
Solvent-free ketone hydrogenations catalyzed by molybdenum complexes
Barbara F. M. Kimmich, Paul J. Fagan, Elisabeth Hauptman, R. Morris Bullock
DOI: 10.1039/B401760A
You might also like
What is the market or research trend for N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0)?
N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0) is increasingly being used ...
What precautions should be taken when handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate (CAS: 1050507-06-6)?
When handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate, appropriate p...
What regulatory guidelines apply to diethyldiselane (CAS: 628-39-7)?
Diethyldiselane (CAS: 628-39-7) is classified under the Globally Harmonized Syst...
What is the market or research trend for oxocopper (CAS: 12053-18-8)?
The market for oxocopper (CAS: 12053-18-8) is primarily driven by its use in cat...
What is the market or research trend for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-carboxylic acid?
The market for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-c...
What is 2-(1-Pyrrolidinyl)-4-pyridinamine (CAS: 35981-63-6)?
2-(1-Pyrrolidinyl)-4-pyridinamine is a chemical compound with the CAS number 359...
What are the physical and chemical properties of 2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1)?
2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1) is a crystalline sol...
How is (S)-Alpha-allyl-proline hydrochloride (CAS: 129704-91-2) typically synthesized?
(S)-Alpha-allyl-proline hydrochloride is usually synthesized via a Wittig reacti...
What is 3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5)?
3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5) is an organic compound w...
How is Lys-SMCC-DM1 (CAS: 1281816-04-3) typically synthesized?
Lys-SMCC-DM1 is synthesized via a multi-step process involving the coupling of S...
Source Journal
Journal of Materials Chemistry A

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment














