摘要
Anti-perovskite solid-state electrolyte Li_(2)OHCl usually exhibits orthorhombic phase and low ionic conductivity at room temperature.However,its ionic conductivity increases greatly when the temperature is up to 40℃,while it goes through an orthorhombic-to-cubic phase transition.The cubic Li_(2)OHCl with high ionic conductivity is stabilized at room temperature and even lower temperature about 10℃ by a simple synthesis method of wet mechanical milling.The cubic Li_(2)OHCl prepared by this method performs an ionic conductivity of 4.27×10^(-6) S/cm at room temperature,about one order of magnitude higher than that of the orthorhombic Li_(2)OHCl.The phase-transition temperature is decreased to around 10℃.Moreover,it can still remain cubic phase after heat treatment at 210℃.This work delivers a huge potential of fabricating high ionic conductivity phase antiperovskite solid-state electrolyte materials by wet mechanical milling.
作者
Di-Xing Ni
Yao-Dong Liu
Zhi Deng
Dian-Cheng Chen
Xin-Xin Zhang
Tao Wang
Shuai Li
Yu-Sheng Zhao
倪地兴;刘耀东;邓志;陈典诚;张欣欣;王涛;李帅;赵予生(Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen 518055,China;21C Innovation Laboratory,Contemporary Amperex Technology Ltd.(CATL),Ningde 352100,China;Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology,Dongguan 523803,China)
基金
supported by the Guangdong Basic and Applied Basic Research Foundation(Grant No.2021A1515011784)
the Key Program of the National Natural Science Foundation of China(Grant No.51732005)
the Shenzhen Science and Technology Program(Grant No.KQTD20200820113047086)
21C Innovation Laboratory,Contemporary Amperex Technology Ltd(Grant No.C-ND-21C LAB-210044-1.0)
the Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology。
