Developing promising solid-state Li batteries with capabilities of high current densities have been a major challenge partly due to large interfacial resistance across the electrode/electrolyte interfaces.This work re...Developing promising solid-state Li batteries with capabilities of high current densities have been a major challenge partly due to large interfacial resistance across the electrode/electrolyte interfaces.This work represents an integrated network of self-standing polymer electrolyte and active electrode materials with in situ UV cross-linking.This method provides a uniform morphology of composite polymer electrolyte with low thickness of 20-40μm.This modification leads to promising cycling results with 85%specific capacity retention in LijjLiFePO4 cell over 100 cycles at high current densities of 170 mA g1(~25μA cm^(-2),1 C).By applying this method,the interfacial resistance decreases as high as seven folds compared to noncross-linked interfaces.The following work introduce a facile and cost-effective method in developing fastcharging self-standing polymer batteries with enhanced electrochemical properties.展开更多
基金National science foundation,Grant/Award Number:CBET-1805938Northwestern UniversityUniversity of Illinois at Chicago。
文摘Developing promising solid-state Li batteries with capabilities of high current densities have been a major challenge partly due to large interfacial resistance across the electrode/electrolyte interfaces.This work represents an integrated network of self-standing polymer electrolyte and active electrode materials with in situ UV cross-linking.This method provides a uniform morphology of composite polymer electrolyte with low thickness of 20-40μm.This modification leads to promising cycling results with 85%specific capacity retention in LijjLiFePO4 cell over 100 cycles at high current densities of 170 mA g1(~25μA cm^(-2),1 C).By applying this method,the interfacial resistance decreases as high as seven folds compared to noncross-linked interfaces.The following work introduce a facile and cost-effective method in developing fastcharging self-standing polymer batteries with enhanced electrochemical properties.
