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Polymer Electrolyte Glue: A Universal Interfacial Modification Strategy for All-Solid-State Li Batteries
- Source :
- Nano letters. 19(4)
- Publication Year :
- 2019
-
Abstract
- In recent years solid Li+ conductors with competitive ionic conductivity to those of liquid electrolytes have been reported. However, the incorporation of highly conductive solid electrolytes into the lithium-ion batteries is still very challenging mainly due to the high resistance existing at the solid-solid interfaces throughout the battery structure. Here, we demonstrated a universal interfacial modification strategy through coating a curable polymer-based glue electrolyte between the electrolyte and electrodes, aiming to address the poor solid-solid contact and thus decrease high interfacial resistance. The liquid glue exhibits both great wettability as well as chemical/electrochemical stability to most of the electrodes, and it can be easily solidified into a polymer electrolyte layer through a "post-curing" treatment. As a result, symmetric Li batteries with the glue modification exhibit much smaller impedance and enhanced stability upon plating/stripping cycles compared to the batteries without glue modification. The all-solid-state Li-S batteries with glue modification show significantly enhanced performances. The strategy of developing glue electrolytes to improve the electrode-electrolyte interface contact provides an alternative option for improving many other solid-state batteries. Accepted version
- Subjects :
- chemistry.chemical_classification
Materials science
Mechanical Engineering
Chemical engineering [Engineering]
Bioengineering
02 engineering and technology
General Chemistry
Polymer
Electrolyte
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
Electrochemistry
Glue
Chemical engineering
chemistry
Coating
Fast ion conductor
engineering
Solid-state battery
Ionic conductivity
General Materials Science
Wetting
0210 nano-technology
Polymer Electrolyte
Subjects
Details
- ISSN :
- 15306992
- Volume :
- 19
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Nano letters
- Accession number :
- edsair.doi.dedup.....af41a9811aca8c123949dd4b83c2fbad