CAJ | 학술논문

实现水溶液锂电池的关键技术是如何保护金属锂电极不与水反应。提出了一种保护金属锂电极,其不仅在有机电解液体系稳定而且在水溶液中也可稳定工作,这种锂电极可以用于水体系锂电池。该研究制备了双层锂离子电解质保护的金属锂电极,其外层采用的LAGP（Li1＋x＋yAlxGe2-x SiyP3-yO12）玻璃陶瓷电解质相对于包括水溶液等电解液是稳定的,该玻璃陶瓷电解质的电导率达到0.57 mS cm^-1。通过交流阻抗评估发现不同电解质间的界面阻抗是水体系锂电池内阻的主要来源。最终采用双层保护金属锂电极制备的水体系锂空气电池和锂水电池可以稳定工作。
실현수용액리전지적관건기술시여하보호금속리전겁불여수반응。제출료일충보호금속리전겁,기불부재유궤전해액체계은정이차재수용액중야가은정공작,저충리전겁가이용우수체계리전지。해연구제비료쌍층리리자전해질보호적금속리전겁,기외층채용적LAGP（Li1＋x＋yAlxGe2-x SiyP3-yO12）파리도자전해질상대우포괄수용액등전해액시은정적,해파리도자전해질적전도솔체도0.57 mS cm^-1。통과교류조항평고발현불동전해질간적계면조항시수체계리전지내조적주요래원。최종채용쌍층보호금속리전겁제비적수체계리공기전지화리수전지가이은정공작。
The key technology for aqueous lithium battery is protecting lithium from water.A protected lithium electrode which is stable not only in organic electrolyte but also in aqueous solutions and which can be used in aqueous lithium battery is proposed.The double layer Li-ion conductive electrolyte protected lithium electrode has been prepared.The front layer of LAGP（Li1＋x＋y AlxGe2-x SiyP3-yO12） glass-ceramic with ionic conductivity of 0.57 mS cm^-1 which is stable to electrolyte including aqueous solution.It is found that the impedance of interface of LAGP/liquid electrolyte is the major one for aqueous lithium battery.Finally,Li-Air battery and Li-Water battery have been assembled,and the two types of aqueous lithium battery are capable of work by using double layer protected lithium electrode.