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Sulfide-based composite solid electrolyte films for all-solid-state batteries
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DOI：10.1038/s43246-024-00482-8.png)
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Abstract
En 中文
All-solid-state batteries with non-flammable solid electrolytes offer enhanced safety features, and show the potential for achieving higher energy density by using lithium metal as the anode. Among various solid electrolytes, sulfides are favored for their high room-temperature ionic conductivity and low-temperature processing. However, making large-scale thin electrolyte films via pressing sulfide powder is still challenging. A polymer has recently been introduced as a binder or framework to obtain a flexible thin sulfide-based composite electrolyte film with high ionic conductivity. In this Review, we initially discuss the ionic transport mechanism of sulfide/polymer composite electrolyte films. Then, the preparation methods and the properties of sulfide-based composite electrolytes are introduced in detail, and the advantages and disadvantages of each method are also analyzed. We later discuss the application of composite electrolyte films in all-solid-state batteries. Finally, we provide a perspective on the future development direction of sulfide-based composite electrolyte films. Sulfide-based solid electrolyte films with high room-temperature ionic conductivity will boost the energy density of all-solid-state batteries. This Review covers the preparation methods and properties of sulfide-based composite electrolytes, while guiding future development.
Keywords:
LITHIUM-ION BATTERIES
HIGH-ENERGY-DENSITY
HYBRID ELECTROLYTES
LI2S-P2S5 GLASSES
THIN
CHALLENGES
CONDUCTIVITY
STABILITY
MEMBRANES
DRY
Journal
C
IF:
9.6
Papers:
1.4K
Citations:
4.3K