Ultrathin single-ion conducting polymer enabling a stable Li|Li1.3Al0.3Ti1.7(PO4)3 interface

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00573160" target="_blank" >RIV/61389005:_____/23:00573160 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.cej.2023.143530" target="_blank" >https://doi.org/10.1016/j.cej.2023.143530</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cej.2023.143530" target="_blank" >10.1016/j.cej.2023.143530</a>

Result language
angličtina
Original language name
Ultrathin single-ion conducting polymer enabling a stable Li|Li1.3Al0.3Ti1.7(PO4)3 interface
Original language description
NASICON-type Li1+xAlxTi2-x(PO4)(3) (LATP) solid electrolytes have attracted great attention because of their high ionic conductivity, wide electrochemical stability window, pronounced chemical resistance, and low cost. However, the chemical instability of LATP against metallic lithium (Li-0) poses a major challenge and hinders its application in solid-state lithium batteries. Herein, an ultrathin polysiloxane-based single-ion conductor (PSiO) serves as multifunctional protection interlayer to enhance the interfacial stability between LATP and Li-0. PSiO effectively blocks the direct contact between Li-0 and LATP, regulates the homogeneous Li+ flux at the Li|electrolyte interface, promotes the intimate contact between PSiO and Li-0 by forming Si - O - Li bonds, and generates an LiF-enriched Li|electrolyte interphase. As a result, it enables more than 2,000 h of stable cycling in symmetric PSiO@Li||PSiO@Li cells and superior rate capability and cycling stability in high-energy PSiO@Li||LiNi0.88Co0.09Mn0.03O2 cells. The realization of well performing 2-layer bipolar stacked cells eventually demonstrates the great potential of this approach.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
<a href="/en/project/EF16_013%2F0001812" target="_blank" >EF16_013/0001812: Center of Accelerators and Nuclear Analytical Methods - OP</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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