Journal
ENERGY & ENVIRONMENTAL MATERIALS
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1002/eem2.12461
Keywords
all-solid-state lithium batteries; infiltration; ionic transport; iron sulfide; sulfide solid electrolyte
Categories
Funding
- Guangdong Pearl River Talents Plan [2017GC010218]
- R&D Program in Key Areas of Guangdong Province [2020B0101030005]
- Guangdong Basic and Applied Basic Research Foundation [2020B1515120049, 2021A1515010153]
- National Natural Science Foundation of China [NSFC51621001]
Ask authors/readers for more resources
This study presents a novel method for the development of high-performance all-sulfide-based solid-state batteries by using a dissoluble sulfide electrolyte and a MOF-derived composite cathode.
All-solid-state lithium batteries (ASSLBs) based on sulfide solid electrolytes (SEs) are one of the most promising strategies for next-generation energy storage systems and electronic devices. However, the poor chemical/electrochemical stability of sulfide SEs with oxide cathode materials and high interfacial impedance, particularly due to physical contact failure, are the major limiting factors to the development of sulfide SEs in ASSLBs. Herein, the composite cathode of MOF-derived Fe7S8@C and Li6PS5Br fabricated by an infiltration method (IN-Fe7S8) with dissoluble sulfide electrolyte (dissoluble SE) is reported. Dissoluble SE can easily infiltrate the porous sheet-type Fe7S8@C cathode to homogeneously contact with Fe7S8 nanoparticles that are embedded in the surrounding carbon matrixes and form a fast ionic transport network. Benefiting from applying dissoluble SE and Fe7S8@C, the IN-Fe7S8-based cells displayed a reversible capacity of 510 mAh g(-1) after 180 cycles at 0.045 mA cm(-2) at 30 degrees C. This work demonstrates a novel and practical method for the development of high-performance all-sulfide-based solid state batteries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available