In the pursuit of long-life K-ion batteries (KIBs), half-cell measurements using highly reactive K metal counter electrodes are a standard practice. However, there is increasing evidence of electrolyte decomposition by K metal impacting electrode performance. Herein, we systematically explored the K metal-treated electrolytes KPF, KN(SOF) (KFSA), and their combination in ethylene carbonate/diethyl carbonate (EC/DEC), referred to as K-KPF, K-KFSA, and K-KPF:KFSA, respectively, after storage in contact with K metal.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2020
A series of binary-salt electrolytes of KPF/KN(SOF) (KFSA) in carbonate ester solvents have been developed for high-voltage K-ion batteries by clarifying the effect of salt ratio and different solvents on the physical properties of the electrolyte solutions and electrochemical performance of K-ion batteries. The KPF/KFSA carbonate ester solutions, such as KPF/KFSA ethylene carbonate (EC)/diethyl carbonate (DEC), exhibit higher ionic conductivity than single-salt KPF one, and higher KFSA content results in higher ionic conductivity. The KPF-rich binary-salt electrolytes with KPF/KFSA ratios of ≥3 (mol/mol) provide enough oxidation stability and passivation against Al corrosion at 4.
View Article and Find Full Text PDFCytoplasmic vacuolation was seen in patients with a variety of plasma cell dyscrasia. We report here a case of leukemic non-secretory multiple myeloma with many azurophilic granules. By electron microscopy, the myeloma cells were found to have a well-developed rough endoplasmic reticulum and a clear Golgi apparatus, and azurophilic granules were identified as phagocytic vacuoles.
View Article and Find Full Text PDFObjective: We investigated the acute-phrase and chronic-phase outcomes of patients with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI) with or without antecedent mutant tissue-type plasminogen (t-PA) administration.
Methods: Thirty-nine patients with a first AMI within 6 hours of onset were randomly assigned to the treatment group (1,600,000 IU IV monteplase, n = 19) or the nontreatment group (n = 20), followed by PCI. Clinical outcomes were then evaluated.
Objective: Inflammatory liver damage and viral persistence after hepatitis C virus (HCV) infection are known to be related in host immunity. Suplatast tosilate is an immunomodulator that selectively inhibits type 2 cytokine production by helper T cells. We investigated the efficacy and safety of the administration of suplatast tosilate for patients with HCV infection by examining the level of serum alanine aminotransferase (ALT) and viremia.
View Article and Find Full Text PDFA 64 year-old man began to feel numbness on his bilateral feet in 1990. He was diagnosed as diabetes mellitus with a high fasting glucose level of 580 mg/dl in 1993 and he received oral hypoglycemic agents. Since then, his blood glucose levels had been in good control under diet therapy and medication.
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