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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/EF16_013%2F0001812" target="_blank" >EF16_013/0001812: Centrum urychlovačů a jaderných analytických metod - OP</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

1873-3212

Svazek periodika

467

Číslo periodika v rámci svazku

JUL

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

143530

Kód UT WoS článku

001002076400001

EID výsledku v databázi Scopus

2-s2.0-85159287234