Lithium metal negative electrode for batteries with high energy density: Lithium utilization and additives

Kazuki Yoshii, Hikari Sakaebe

Research output: Contribution to journalArticlepeer-review

Abstract

Metallic lithium is considered to be the ultimate negative electrode for a battery with high energy density due to its high theoretical capacity. In the present study, to construct a battery with high energy density using metallic lithium as a negative electrode, charge/ discharge tests were performed using cells composed of LiFePO4and metallic lithium at various lithium utilization values. A relationship was observed between utilization and cycle performance, and the degradation behavior of metallic lithium was evaluated by crosssectional FE-SEM observations. We also investigated the effects of additives in the electrolyte and found that FEC and VC effectively improved cycle performance.

Original languageEnglish
Pages (from-to)463-467
Number of pages5
JournalElectrochemistry
Volume88
Issue number5
DOIs
Publication statusPublished - Sep 5 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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