Sekundärbatterie mit Nichtwässrigem Elektrolyten

Details

Veröffentlichungs-Nr.

EP4742351

Anmeldetag

24. Juni 2022

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

IPC

H01M10/0525

Abstract

Provided is a non-aqueous electrolyte secondary battery in which micro-short circuits are suppressed while charge and discharge cycle characteristics are improved. A non-aqueous electrolyte secondary battery according to one aspect of the present disclosure comprises a positive electrode, a negative electrode, a separator separating the positive electrode and the negative electrode from each other, and a non-aqueous electrolyte. The positive electrode comprises a positive electrode current collector and a positive electrode mixture layer formed on a surface of the positive electrode current collector. The positive electrode mixture layer includes a first positive electrode mixture layer opposing the positive electrode current collector, and a second positive electrode mixture layer laminated on the surface of the first positive electrode mixture layer, and at least, the first positive electrode mixture layer contains fibrous carbon, and the second positive electrode mixture layer does not contain fibrous carbon having an average fiber length equal to or greater than the thickness of the second positive electrode mixture layer.

Anmelder

Firma

Panasonic Energy Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete