Solution-processed 2D hectorite nanolayers for high-efficient composite solid-state electrolyte

Pei，Xin1; Mu，Jinlong1; Hong，Jianhe1; Wei，Wenfei2; Luo，Wenjun1; He，Gang1

2022

10.1016/j.clay.2021.106363

APPLIED CLAY SCIENCE   影响因子和分区

0169-1317

Multiphase composite solid-state electrolytes (CSEs), with excellent customizability and combing the advantages of the inorganic solid electrolyte and solid polymer electrolyte (SPE), have been considered as a promising candidate electrolyte for commercial all-solid-state lithium metal batteries (ASLMBs). Since the performance of CSEs is largely governed by the morphology and structure of the filler, a highly efficient filler material is the key point for achieving high-performance CSEs. Herein, utilizing the super-dispersibility of hectorite (Ht) in water, 2D Ht nanolayers were prepared and combined with poly(ethylene glycol) (PEO) to work as high-performance CSEs. Benefiting from the high specific surface area and surface electronegativity, obtained nanoscale 2D Ht has shown effectively enhanced ionic conductivity and contributed to the mechanical robustness of the composite electrolyte. When 10 wt% of 2D Ht is applied, the ionic conductivity of the composite solid electrolyte reaches up to 1.08 × 10 S∙cm at 30 °C, and the tensile modulus and elongation at break rise up to 1.88 MPa and 1270%, respectively. The facile solution-processed filler, consuming lower energy than high-temperature calcination, can provide an efficient strategy for developing advanced ASLMBs.

2D fillers Composite solid-state electrolytes Hectorite Solid-state lithium metal battery

SCI ; EI

英语

通讯

WOS:000727750200004

20214911272923

Chemical bonds ; Electronegativity ; Fillers ; Ionic conduction in solids ; Ionic conductivity ; Lithium ; Lithium batteries ; Morphology ; Polyelectrolytes ; Polyethylene glycols ; Solid-State Batteries

Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Primary Batteries:702.1.1 ; Secondary Batteries:702.1.2 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

GEOSCIENCES

2-s2.0-85120383873

Scopus

1.Engineering Research Center of Nano-Geomaterials of Ministry of Education,Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan,430074,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Pei，Xin,Mu，Jinlong,Hong，Jianhe,et al. Solution-processed 2D hectorite nanolayers for high-efficient composite solid-state electrolyte[J]. APPLIED CLAY SCIENCE,2022,216.

Pei，Xin,Mu，Jinlong,Hong，Jianhe,Wei，Wenfei,Luo，Wenjun,&He，Gang.(2022).Solution-processed 2D hectorite nanolayers for high-efficient composite solid-state electrolyte.APPLIED CLAY SCIENCE,216.

Pei，Xin,et al."Solution-processed 2D hectorite nanolayers for high-efficient composite solid-state electrolyte".APPLIED CLAY SCIENCE 216(2022).