Wet Mechanical Milling Induced Phase Transition to Cubic Anti-Perovskite Li_(2)OHCl  

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)

机构地区：[1]Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen 518055,China [2]C Innovation Laboratory,Contemporary Amperex Technology Ltd.(CATL),Ningde 352100,China [3]Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology,Dongguan 523803,China

出　　处：《Chinese Physics Letters》2022年第2期78-81,共4页中国物理快报（英文版）

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。

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.

关 键 词：temperature TRANSITION CUBIC 

分 类 号：TM912[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]