Li-ion conductivity in Li2OHCl1-xBrx solid electrolytes: grains, grain boundaries and interfaces

被引：33

作者：

Lee, Hyeon Jeong ^{[1
]}

Darminto, Brigita ^{[1
]}

Narayanan, Sudarshan ^{[1
]}

Diaz-Lopez, Maria ^{[2
]}

Xiao, Albert W. ^{[1
]}

Chart, Yvonne ^{[1
]}

Lee, Ji Hoon ^{[3
]}

Dawson, James A. ^{[4
,5
]}

Pasta, Mauro ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

[2] Diamond Light Source Ltd, Diamond House,Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

[3] Kyungpook Natl Univ, Sch Mat Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea

[4] Newcastle Univ, Chem Sch Nat & Environm Sci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[5] Newcastle Univ, Ctr Energy, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2022年 / 10卷 / 21期

基金：

新加坡国家研究基金会; 英国工程与自然科学研究理事会;

关键词：

LITHIUM-ION; TRANSPORT MECHANISM; THERMAL-EXPANSION; STATE; STABILITY;

D O I：

10.1039/d2ta01462a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we conduct a comprehensive investigation of the effect of grain, grain boundary and interfacial resistance on the total Li-ion conductivity in Li2OHCl1-xBrx antiperovskite solid electrolytes. We highlight how the thermal expansion coefficient can serve as an indicator for the presence of structural defects, which are difficult to probe directly with X-ray techniques, and their effect on bulk Li-ion conduction. The detrimental effect of grain boundaries on ionic conductivity is investigated by atomistic calculations and validated experimentally by electrochemical impedance spectroscopy on pellets with controlled grain size. The effect of composition on interfacial resistance is probed by electrochemical impedance spectroscopy and X-ray photoelectron spectroscopy. These insights provide design principles to improve Li-ion conductivity in lithium hydroxide halide antiperovskites.

引用

页码：11574 / 11586

页数：13

共 50 条

[1] Influence of grain boundaries on Li-ion conductivity characterized at atomic scale
Liu, Tianyu
MRS BULLETIN, 2018, 43 (04) : 255 - 256
[2] Grain boundaries impede ion conduction in solid-state Li-ion batteries
Jacoby, Mitch
CHEMICAL & ENGINEERING NEWS, 2018, 96 (04) : 8 - 9
[3] Optimizing Li-Ion Transport in LaCl3-xBrx Solid Electrolytes Through Anion Mixing
Mao, Xudong
Dawson, James A.
ECOMAT, 2025, 7 (03)
[4] Atomic-Scale Influence of Grain Boundaries on Li-Ion Conduction in Solid Electrolytes for All-Solid-State Batteries
Dawson, James A.
Canepa, Pieremanuele
Famprikis, Theodosios
Masquelier, Christian
Islam, M. Saiful
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2018, 140 (01) : 362 - 368
[5] In-situ imaging of Li-ion migration at interfaces in an all solid Li-ion battery
Takata, Keiji
Osaka, Ryuma
Matsushita, Yuki
Nakanishi, Taiki
SURFACE AND INTERFACE ANALYSIS, 2020, 52 (12) : 1029 - 1033
[6] Energy Focus: Influence of grain boundaries on Li-ion conductivity characterized at atomic scale
Tianyu Liu
MRS Bulletin, 2018, 43 : 255 - 256
[7] Eutectogels: A New Class of Solid Composite Electrolytes for Li/Li-Ion Batteries
Joos, Bjorn
Vranken, Thomas
Marchal, Wouter
Safari, Mohammadhosein
Van Bael, Marlies K.
Hardy, An T.
CHEMISTRY OF MATERIALS, 2018, 30 (03) : 655 - 662
[8] Understanding Li-Ion Dynamics in Lithium Hydroxychloride (Li2OHCl) Solid State Electrolyte via Addressing the Role of Protons
Song, Ah-Young
Turcheniuk, Kostiantyn
Leisen, Johannes
Xiao, Yiran
Meda, Lamartine
Borodin, Oleg
Yushin, Gleb
ADVANCED ENERGY MATERIALS, 2020, 10 (08)
[9] Understanding interfaces in solid state electrolytes for Li ion batteries
Gewirth, Andrew
Sang, Lingzi
Philip, Maria
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2018, 256
[10] Differentiating grain and grain boundary ionic conductivities of Li-ion antiperovskite electrolytes
Zheng, Jingfeng
Elgin, Jocelyn
Shao, Jieren
Wu, Yiying
ESCIENCE, 2022, 2 (06): : 639 - 645

← 1 2 3 4 5 →