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
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Electrochemistry, Vol 88, Iss 4, Pp 321-324 (2020)
Druh dokumentu: article
ISSN: 2186-2451
DOI: 10.5796/electrochemistry.19-00076
Popis: 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.
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