Advanced characterization of lithium battery materials with positrons

The fourth generation cephalosporin antibacterial agent, cefepime, was loaded into layered double hydroxides for enhancing antibiotic efficiency, reducing side effects, as well as achieving the sustained release property. The intercalation of antibiotic into the inter-gallery of ZnAl-layered double hydroxide (LDH) was carried out using ion exchange method, by this constituting a nano-sized organic-inorganic hybrid material for a controlled release novel formulation. Although cefepime is a broad spectrum antibiotic, it has various adverse effects and a significant degradation rate. Thus, the preparation and physico-chemical characterization of nanomaterials able to intercalate this drug is an important study for medical and pharmaceutical field. The antibiotic inclusion into LDHs nanostructure was confirmed by advanced characterization techniques and the release profile of cefepime was analysed with the respect to pH of the simulated media.

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Advanced Characterization of Additively Manufactured 316L Stainless Steel for Nuclear Applications

Microscopy and Microanalysis ◽

10.1017/s1431927621007789 ◽

2021 ◽

Vol 27 (S1) ◽

pp. 2160-2161

Author(s):

Lingfeng He ◽

Laura Hawkins ◽

Jingfan Yang ◽

Xiang Liu ◽

Miao Song ◽

...

Keyword(s):

Stainless Steel ◽

316L Stainless Steel ◽

Advanced Characterization ◽

Nuclear Applications

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Fabrication and Characterization of Nylon 66/PAN Nanofibrous Film Used as Separator of Lithium-Ion Battery

Polymers ◽

10.3390/polym13121984 ◽

2021 ◽

Vol 13 (12) ◽

pp. 1984

Author(s):

Yu-Hsun Nien ◽

Chih-Ning Chang ◽

Pao-Lin Chuang ◽

Chun-Han Hsu ◽

Jun-Lun Liao ◽

...

Keyword(s):

Lithium Ion Battery ◽

Lithium Batteries ◽

Lithium Battery ◽

Coulombic Efficiency ◽

Electronic Devices ◽

Lithium Ion ◽

Nylon 66 ◽

Excellent Electrochemical Performance ◽

Fabrication And Characterization

In recent years, portable electronic devices have flourished, and the safety of lithium batteries has received increasing attention. In this study, nanofibers were prepared by electrospinning using different ratios of nylon 66/polyacrylonitrile (PAN), and their properties were studied and compared with commercial PP separators. The experimental results show that the addition of PAN in nylon 66/PAN nanofibrous film used as separator of lithium-ion battery can enhance the porosity up to 85%. There is also no significant shrinkage in the shrinkage test, and the thermal dimensional stability is good. When the Li/LiFePO4 lithium battery is prepared by nylon 66/PAN nanofibrous film used as separator, the capacitor can be maintained at 140 mAhg−1 after 20 cycles at 0.1 C, and the coulombic efficiency is still maintained at 99%, which has excellent electrochemical performance.

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