Dorai, Arunkumar published the artcileVisualization of polysulfide dissolution in lithium-sulfur batteries using in-situ NMR microimaging, Quality Control of 143-24-8, the main research area is lithium sulfur battery magnetic resonance imaging.
Lithium-sulfur batteries offer the highest theor. energy d. among enclosed rechargeable batteries. However, there are various issues that need to be addressed before their practical adoption, such as the dissolution of intermediate lithium polysulfides (Li2Sn) into the electrolyte solution, which causes rapid degradation of the battery. Herein, we used NMR (NMR) and in-situ magnetic resonance imaging (MRI) to visualize the dissolution of the intermediate species formed during the discharge-charge process in Li-S batteries. A strong enhancement in the MRI signal was observed when the cell was first discharged, which is associated with the dissolution of intermediate polysulfides. To determine the origin of this signal enhancement, 1H NMR spectra, T1 relaxation time, and ESR (ESR) measurements were performed on electrolyte containing polysulfides. The origin of the strong enhancement of the MRI signal by the dissoluted polysulfides is mainly attributed to the paramagnetic interaction due to the formation of S*-3 and S*-4 radicals in the dissoluted polysulfides. The results demonstrate that 1H MRI is an indirect and effective way to study and visualize the intermediate species formed during Li-S battery operation.
Electrochemistry Communications published new progress about Dissolution. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Quality Control of 143-24-8.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem