A simple method of realizing all-solid-state lithium batteries (ASS-LIBs), employing a Sn/C composite anode and glassy solid electrolyte LiI-Li3PS4 (LPSI), possessing desirable capacity and cycle life, is proposed. The composite anode, containing Sn/C, LPSI, and carbon fiber, is synthesized via a straightforward, one-step, manual grinding. Potentiodynamic cycling with galvanostatic acceleration (PCGA) analysis and cyclic voltammetry of Sn/C|LPSI|Li cells demonstrate that electrochemical processes of graphite are promoted by integrating it with Sn. The improvement appears as increased battery capacity in galvanostatic charge-discharge cycling. The Sn/C|LPSI|Li exhibits a capacity of 400 mAh g−1 in the 1st cycle at 0.033C, which is about 83% of the nominal capacity of the composite. Throughout the course of 30 cycles, the cell retains a capacity above 320 mAh g−1 and a coulombic efficiency above 98%. The retention of its high capacity suggests that the pulverization of Sn was physically suppressed by using solid-state materials, i.e. LPSI and graphite. It is demonstrated that the combination of LPSI electrolyte and Sn/C enables a simple and time-efficient preparation of ASS-LIBs with stable and safe performance.

Sn/C composite anodes for bulk-type all-solid-state batteries / Maresca, G.; Tsurumaki, A.; Suzuki, N.; Yoshida, K.; Panero, S.; Aihara, Y.; Navarra, M. A.. - In: ELECTROCHIMICA ACTA. - ISSN 0013-4686. - 395(2021), p. 139104. [10.1016/j.electacta.2021.139104]

Sn/C composite anodes for bulk-type all-solid-state batteries

Maresca G.
Primo
Writing – Original Draft Preparation
;
Tsurumaki A.;Yoshida K.;Panero S.;Navarra M. A.
2021

Abstract

A simple method of realizing all-solid-state lithium batteries (ASS-LIBs), employing a Sn/C composite anode and glassy solid electrolyte LiI-Li3PS4 (LPSI), possessing desirable capacity and cycle life, is proposed. The composite anode, containing Sn/C, LPSI, and carbon fiber, is synthesized via a straightforward, one-step, manual grinding. Potentiodynamic cycling with galvanostatic acceleration (PCGA) analysis and cyclic voltammetry of Sn/C|LPSI|Li cells demonstrate that electrochemical processes of graphite are promoted by integrating it with Sn. The improvement appears as increased battery capacity in galvanostatic charge-discharge cycling. The Sn/C|LPSI|Li exhibits a capacity of 400 mAh g−1 in the 1st cycle at 0.033C, which is about 83% of the nominal capacity of the composite. Throughout the course of 30 cycles, the cell retains a capacity above 320 mAh g−1 and a coulombic efficiency above 98%. The retention of its high capacity suggests that the pulverization of Sn was physically suppressed by using solid-state materials, i.e. LPSI and graphite. It is demonstrated that the combination of LPSI electrolyte and Sn/C enables a simple and time-efficient preparation of ASS-LIBs with stable and safe performance.
File allegati a questo prodotto
File Dimensione Formato  
Maresca_SnC composite anodes_2021.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.06 MB
Formato Adobe PDF
2.06 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1575681
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 3
social impact