Zhang, Qing; Han, Bing; Zou, Yucheng; Shen, Shaocheng; Li, Menghao; Lu, Xinzhen; Wang, Man; Guo, Zaiping; Yao, Jianquan; Chang, Zhi; Gu, Meng published their research in Advanced Materials (Weinheim, Germany) in 2021. The article was titled 《Enabling Atomic-Scale Imaging of Sensitive Potassium Metal and Related Solid Electrolyte Interphases Using Ultralow-Dose Cryo-TEM》.SDS of cas: 872-36-6 The article contains the following contents:
Potassium-based solid electrolyte interphases (SEIs) have a much smaller damage threshold than their lithium counterpart; thus, they are significantly more beam sensitive. Here, an ultralow-dose cryogenic transmission electron microscopy (cryo-TEM) technique (∼8 e S-2 s-1 x 10 s), which enables the at.-scale chem. imaging of the electron-beam-sensitive potassium metal and SEI in its native state, is adapted. The potassium-based SEI consists of large brackets of diverse inorganic phases (≈hundreds of nanometers) interspersed with amorphous phases, which are different from the tiny nanocrystalline inorganic phases (∼a few nanometers) formed in a lithium-based SEI. Organic phosphate-based electrolyte solvents induce the formation of a thin and stable SEI layer for enhanced cycling performance, while the carbonate ester-based electrolytes result in large quantities of metastable KHCO3, and K4CO4 products in the SEI, depleting the potassium reserves in the battery. The findings provide deep insights and guidance in the selection of optimum electrolytes that should be used for potassium batteries. In the experimental materials used by the author, we found Vinylene carbonate(cas: 872-36-6SDS of cas: 872-36-6)
Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.SDS of cas: 872-36-6
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics