Výsledky vyhledávání - "Takefumi OKUMURA"

Akademický článek

Research and Development of Thermally Durable Electrolyte for Lithium Ion Battery

Publikováno v: Electrochemistry, Vol 89, Iss 6, Pp 507-517 (2021)

For ensuring safety of lithium ion batteries (LIBs), we have extensively investigated the quasi-solid electrolyte where lithium ion conducive liquid is quasi-solidified at silica surfaces as thermally durable electrolyte, and applied it to high capac

Externí odkaz: https://doaj.org/article/2bb18012145b45b8b88d83aca4d0c37e

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Akademický článek

Analysis of Electrochemical Reaction in Positive and Negative Electrodes during Capacity Recovery of Lithium Ion Battery Employing Recovery Electrodes

Autor: Shota ITO, Kohei HONKURA, Eiji SEKI, Masatoshi SUGIMASA, Jun KAWAJI, Takefumi OKUMURA

Publikováno v: Electrochemistry, Vol 89, Iss 2, Pp 176-185 (2021)

Electrochemical reactions in positive and negative electrodes during recovery from capacity fades in lithium ion battery cells were evaluated for the purpose of revealing the recovery mechanisms. We fabricated laminated type cells with recovery elect

Externí odkaz: https://doaj.org/article/5e90d3a74eda4bad84db008f7b9e6898

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Akademický článek

High Energy Density 'Bezel-less' Lithium-ion Battery Using Solvate Ionic Liquid-based Quasi-solid-state Electrolyte

Autor: Atsushi UNEMOTO, Motoyuki HIROOKA, Eiji SEKI, Jun KAWAJI, Takefumi OKUMURA

Publikováno v: Electrochemistry, Vol 88, Iss 4, Pp 321-324 (2020)

We propose a novel “bezel-less” lithium-ion battery (LIB) structure that enhances the volumetric energy density of LIB. This structure reduces the extra-space volume for seal and accumulation of current collectors, eliminating the bezel part by 1

Externí odkaz: https://doaj.org/article/e6412fd1cb374e969f448177c5bb3be8

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