Electrochemical stability of a NASICON solid electrolyte from the lithium aluminum germanium phosphate (LAGP) series

Autor(es)

Zallocco, Vinicius Martins ; Freitas, Jhonys Machado ; Bocchi, Nerilso ; Martins Rodrigues, Ana Candida

• Tipo de documento: Artigo Científico
• Fonte: Solid State Ionics; v. 378, p. 7-pg., 2022-03-16.

Resumo

Li1.5Al0.5Ge1.5(PO4)(3) glass-ceramics from NASICON series was synthesized using two different methods: single heat treatment and glass sintering with concurrent crystallization of a pressed pellet, which exhibit ionic conductivity of 4.15 x 10(-4) S cm(-1). The electrochemical stability window was investigated by cyclic voltammetry, utilizing a mixture of powder solid electrolyte, carbon, and binder as the working electrode, resulting in the Li/LAGP/LAGP+C/Au configuration. As a comparison, conventional set-up for cyclic voltammetry was also used, resulting in the Li/LAGP/Au setup. An electrochemical stability window around 3.5 V was found. (AU)

• Processo FAPESP: 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs