Elektrode für Sekundärbatterie mit Nichtwässriger Elektrolytlösung, Verfahren zur Herstellung der Elektrode und Sekundärbatterie mit Nichtwässriger Elektrolytlösung mit der Elektrode

Details

Veröffentlichungs-Nr.

EP4057374

Aktenzeichen

EP22157276

Anmeldetag

17. Februar 2022

Veröffentlichung

21. September 2022

Rechtsraum

EP

IPC

H01M4/04H01M50/107H01M10/058B29C43/00B29C43/22B29C43/24B29C43/28// H01M10/052H01M4/02B29C43/46

Abstract

An electrode disclosed here includes a surface part of an electrode active material layer has a plurality of first grooves extending in a width direction of the electrode current collector and at least one second groove extending in a longitudinal direction of an electrode current collector. The first groove is formed to be continuous from one end to another end. Here, a region in which the first groove and the second groove are formed is uniformly divided into three layers, which are an upper layer, an intermediate layer and a lower layer, in a thickness direction from the surface of the electrode active material layer to the electrode current collector, and when electrode densities (g/cm<3>) of the upper layer, the intermediate layer and the lower layer of the groove are d<1>, d2, and d<3>, respectively, a relationship of 0.8 < (d<1>/d<3>) < 1.1 is satisfied.

Anmelder

Firma

Prime Planet Energy & Solutions, Inc.

Land

🇯🇵 Japan

Fachgebiete