All-Solid-State Potassium Polymer Batteries Enabled by the Effective Pretreatment of Potassium Metal

Mizuki Hamada; Ryoichi Tatara; Kei Kubota; Shinichi Kumakura; Shinichi Komaba

doi:10.1021/acsenergylett.2c01096

journal article·2022-07-08Open access

All-Solid-State Potassium Polymer Batteries Enabled by the Effective Pretreatment of Potassium Metal

Mizuki Hamada, Ryoichi Tatara, Kei Kubota, Shinichi Kumakura, Shinichi Komaba

ACS Energy Letters· Volume 7· Issue 7

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Source abstract

Abstract

K metal disk electrodes, prepared by putting a chunk of K metal in a 1,2-dimethoxyethane (DME) solution containing potassium bis(fluorosulfonyl)amide (KFSA) and 1,3,2-dioxathiolane 2,2-dioxide (DTD), exhibited suppressed polarization and interfacial resistance in continuous metal stripping–deposition reactions of a symmetric half-cell comprising a cross-linked polymer electrolyte. This simple and effective pretreatment process enhances passivation layer formation, enabling fabrication of the first 3 V-class all-solid-state K-ion battery operated at room temperature.

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Research context

Energy storage Polymers Materials processing

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan

Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan

Umicore Japan KK, Minato-ku, Tokyo 107-6026, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Adaptable and Seamless Technology Transfer Program through Target-Driven R and D · Japan Society for the Promotion of Science

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