.png){kind=icon}
.png){kind=icon}
Return
Synergistic optimization of electrochemical performance in Ni-modified ceramic/polymer composite electrolyte films
.png){kind=icon}
PRE
AI
L
Z
L
C
T
DOI：10.1007/s10800-026-02476-5.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Ni-modified Li1+xAlxTi2-x(PO4)(3) solid electrolytes were prepared by a high-temperature solid-state method, and the optimized ceramic phase was further combined with poly(ethylene oxide) to construct composite solid electrolytes. The effects of Ni doping and poly(ethylene oxide) content on phase composition, microstructure, ionic transport, and electrochemical performance were systematically investigated. The results showed that the introduction of Ni suppressed the formation of impurity phases. After compositing with poly(ethylene oxide), the composite solid electrolyte exhibited a room-temperature ionic conductivity of 2.64 & times; 10(- 4) S cm(- 1), a lithium-ion transference number of 0.590, and an activation energy of 0.172 eV. A symmetric lithium cell assembled with the optimized electrolyte cycled stably for more than 3000 h, indicating improved interfacial stability. In addition, the lithium iron phosphate full cell showed superior cycling performance, with a capacity retention of 87.8% after 500 cycles at 1 C. These results demonstrated that appropriate Ni modification and optimization of the polymer content synergistically enhanced the ionic transport properties and interfacial stability of Li1+xAlxTi2-x(PO4)(3)-based composite solid electrolytes. [GRAPHICS]
Keywords:
Composite Solid-State Electrolyte
Ni Modification
Li1+xAlxTi2-x(PO4)(3)
Li+ Transport
Interfacial Stability
Journal
IF:
3
Papers:
963
Citations:
9.0K
Organization
Cited Papers