A quasi-solid-state lithium battery is assembled by plasma sprayed amorphous Li_(4)Ti_(5)O_(12) to provide the outstanding electrochemical stability and better normal interface contact.Scanning Electron Microscope(SEM...A quasi-solid-state lithium battery is assembled by plasma sprayed amorphous Li_(4)Ti_(5)O_(12) to provide the outstanding electrochemical stability and better normal interface contact.Scanning Electron Microscope(SEM),Scanning Transmission Electron Microscopy(STEM),Transmission Electron Microscopy(TEM),and Energy Dispersive Spectrometer(EDS)were used to analyze the structural evolution and performance of plasma sprayed amorphous LTO electrode and ceramic/polymer composite electrolyte before and after electrochemical experiments.By comparing the electrochemical performance of the amorphous LTO electrode and the traditional LTO electrode,the electrochemical behavior of different electrodes is studied.The results show that plasma spraying can prepare an amorphous LTO electrode coating of about 8μm.After 200 electrochemical cycles,the structure of the electrode evolved,and the inside of the electrode fractured and cracks expanded,because of recrystallization at the interface between the rich fluorine compounds and the amorphous LTO electrode.Similarly,the ceramic/polymer composite electrolyte has undergone structural evolution after 200 test cycles.The electrochemical cycle results show that the cycle stability,capacity retention rate,coulomb efficiency,and internal impedance of amorphous LTO electrode are better than traditional LTO electrode.This innovative and facile quasi-solid-state strategy is aimed to promote the intrinsic safety and stability of working lithium battery,shedding light on the development of next-generation high-performance solid-state lithium batteries.展开更多
To the Editor:Laboratory diagnostic methods of bullous pemphigoid(BP)include direct immunofluorescence(DIF)microscopy,BP180 NC16A enzyme-linked immunosorbent assays(ELISA),and indirect immunofluorescence using salt-sp...To the Editor:Laboratory diagnostic methods of bullous pemphigoid(BP)include direct immunofluorescence(DIF)microscopy,BP180 NC16A enzyme-linked immunosorbent assays(ELISA),and indirect immunofluorescence using salt-split skin(ssIIF)in our daily clinical practice.Immunofluorescence(IF)studies are important parts of the laboratory workup for BP.DIF is regarded as the gold standard for BP diagnosis;however,it is not specific and can also be found in other acquired autoimmune subepidermal blistering dermatosis.ssIIF was found to have a specificity of 100%for BP diagnosis and in some guidelines,it is recommended to perform ssIIF in every patient with clinically suspected BP.[1]To date,it is still not defined whether ssIIF can be used as a routine diagnosis method of BP.The BP180 NC16A ELISA is a practical and reliable diagnostic test for BP;however,the false-positive results of BP180 NCA6A ELISA were recently reported in a wide range of dermatoses,which might cause its uncertainty in the diagnosis of BP.Thus,we conducted a single center retrospective study to compare diagnostic values of these tests for BP from Hospital for Skin Diseases,Chinese Academy of Medical Sciences between January 2014 and January 2019.It was approved by the local medical ethical committee(No.2017-KY-022)and consent was obtained from patients prior to serum collection.展开更多
基金supported by the Fund Project of the GDAS Special Project of Science and Technology Development,Guangdong Academy of Sciences Program(No.2020GDASYL-20200104030)the Innovation Project of Guangxi University of Science and Technology Graduate Education(No.YCSW2020217)+2 种基金Guangxi Innovation Driven Development Project(No.AA18242036-2)Innovation Team Project of Guangxi University of Science and Technology(No.3)the Fund Project of the Key Lab of Guangdong for Modern Surface Engineering Technology(No.2018KFKT01)。
文摘A quasi-solid-state lithium battery is assembled by plasma sprayed amorphous Li_(4)Ti_(5)O_(12) to provide the outstanding electrochemical stability and better normal interface contact.Scanning Electron Microscope(SEM),Scanning Transmission Electron Microscopy(STEM),Transmission Electron Microscopy(TEM),and Energy Dispersive Spectrometer(EDS)were used to analyze the structural evolution and performance of plasma sprayed amorphous LTO electrode and ceramic/polymer composite electrolyte before and after electrochemical experiments.By comparing the electrochemical performance of the amorphous LTO electrode and the traditional LTO electrode,the electrochemical behavior of different electrodes is studied.The results show that plasma spraying can prepare an amorphous LTO electrode coating of about 8μm.After 200 electrochemical cycles,the structure of the electrode evolved,and the inside of the electrode fractured and cracks expanded,because of recrystallization at the interface between the rich fluorine compounds and the amorphous LTO electrode.Similarly,the ceramic/polymer composite electrolyte has undergone structural evolution after 200 test cycles.The electrochemical cycle results show that the cycle stability,capacity retention rate,coulomb efficiency,and internal impedance of amorphous LTO electrode are better than traditional LTO electrode.This innovative and facile quasi-solid-state strategy is aimed to promote the intrinsic safety and stability of working lithium battery,shedding light on the development of next-generation high-performance solid-state lithium batteries.
基金Chinese Academy of Medical Sciences(CAMS)Innovation Fund for Medical Sciences(Nos.CIFMS-2017-I2M-1-017,CIFMS-2021-I2M-1-059)Scientific Research Project of Jiangsu Provincial Health Commission(No.ZD2021035).
文摘To the Editor:Laboratory diagnostic methods of bullous pemphigoid(BP)include direct immunofluorescence(DIF)microscopy,BP180 NC16A enzyme-linked immunosorbent assays(ELISA),and indirect immunofluorescence using salt-split skin(ssIIF)in our daily clinical practice.Immunofluorescence(IF)studies are important parts of the laboratory workup for BP.DIF is regarded as the gold standard for BP diagnosis;however,it is not specific and can also be found in other acquired autoimmune subepidermal blistering dermatosis.ssIIF was found to have a specificity of 100%for BP diagnosis and in some guidelines,it is recommended to perform ssIIF in every patient with clinically suspected BP.[1]To date,it is still not defined whether ssIIF can be used as a routine diagnosis method of BP.The BP180 NC16A ELISA is a practical and reliable diagnostic test for BP;however,the false-positive results of BP180 NCA6A ELISA were recently reported in a wide range of dermatoses,which might cause its uncertainty in the diagnosis of BP.Thus,we conducted a single center retrospective study to compare diagnostic values of these tests for BP from Hospital for Skin Diseases,Chinese Academy of Medical Sciences between January 2014 and January 2019.It was approved by the local medical ethical committee(No.2017-KY-022)and consent was obtained from patients prior to serum collection.
