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All-Solid-State Li-Ion Battery Using Li1.5Al0.5Ge1.5(PO4)3As Electrolyte Without Polymer Interfacial Adhesion
- Source :
- The Journal of Physical Chemistry - Part C; July 2018, Vol. 122 Issue: 26 p14383-14389, 7p
- Publication Year :
- 2018
-
Abstract
- Solid-state lithium-ion batteries are promising candidates for energy storage devices that meet the requirements to reduce CO2emissions. NASICON-type solid-state electrolytes (SSE) are most promising materials as electrolytes for high-performance lithium ion batteries because of their good stability and high ionic conductivity. In this study, we successfully fabricate NASICON-based Li1.5Al0.5Ge1.5(PO4)3lithium fast-ion conductors through melt-quenching with post-crystallization. The effect of crystallization temperature on the structure of LAGP and their ionic conductivity is systematically studied using Rietveld analysis of Synchrotron X-ray powder diffraction patterns, multinuclear magnetic resonance, and electrochemical analysis, revealing that the mobility of Li ion is dependent on crystallization temperature. The glass–ceramic LAGP annealed at 800 °C for 8 h exhibits the highest conductivity of 0.5 mS cm–1at room temperature. Moreover, we report the viability of the prepared LAGP glass−ceramic as a solid electrolyte in Li-ion batteries without polymer adhesion. The cycling of Li/LAGP/LFP all-solid-state cell, provides a stable cycling lifetime of up to 50 cycles. This approach demonstrates that LAGP glass–ceramic can have good contact with the electrodes without interfacial layer and can deliver a reasonable discharge capacity after 50 cycles.
Details
- Language :
- English
- ISSN :
- 19327447 and 19327455
- Volume :
- 122
- Issue :
- 26
- Database :
- Supplemental Index
- Journal :
- The Journal of Physical Chemistry - Part C
- Publication Type :
- Periodical
- Accession number :
- ejs45727252
- Full Text :
- https://doi.org/10.1021/acs.jpcc.8b03971