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

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

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 16% compared to the conventional aluminum laminated LIB...

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Bibliographic Details
Main Authors: Atsushi UNEMOTO, Motoyuki HIROOKA, Eiji SEKI, Jun KAWAJI, Takefumi OKUMURA
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2020-07-01
Series:Electrochemistry
Subjects:
high capacity
high energy density
quasi-solid-state electrolyte
safety
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/88/4/88_19-00076/_pdf/-char/en
Description
Summary: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 16% compared to the conventional aluminum laminated LIBs. The bezel-less LIB using a Ni-rich positive electrode and a graphite negative electrode recorded an energy of 132 Wh and high energy density of 600 Wh L−1 (256 Wh kg−1). The safety of the proposed bezel-less LIB by a combined use of the quasi-solid-state electrolyte layer was successfully demonstrated in overcharge and collapse tests.
ISSN:2186-2451

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