Journal
JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY
Volume 11, Issue 3, Pages 282-290Publisher
KOREAN ELECTROCHEMISTRY SOC
DOI: 10.33961/jecst.2019.00661
Keywords
Blending Effect; All Solid State Battery; LiFePO4 Cathoe Material; Li3V2(PO4)(3) Cathode Material
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Funding
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant - Korea government (MOTIE) [20182020109950]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20182020109950] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this article, we report the effect of blended cathode materials on the performance of all-solid-state lithium-ion batteries (ASLBs) with oxide-based organic/inorganic hybrid electrolytes. LiFePO4 material is good candidates as cathode material in PEO-based solid electrolytes because of their low operating potential of 3.4 V; however, LiFePO4 suffers from low electric conductivity and low Li ion diffusion rate across the LiFePO4 /FePO4 interface. Particularly, monoclinic Li3V2(PO4)(3) (LVP) is a well-known high-power-density cathode material due to its rapid ionic diffusion properties. Therefore, the structure, cycling stability, and rate performance of the blended LiFePO4/Li3V2(PO4)(3) cathode material in ASLBs with oxide-based inorganic/organic-hybrid electrolytes are investigated by using powder X-ray diffraction analysis, field-emission scanning electron microscopy, Brunauer-Emmett-Teller sorption experiments, electrochemical impedance spectroscopy, and galvanostatic measurements.
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