Gewickelte Elektrodenanordnung

Details

Veröffentlichungs-Nr.

EP4742328

Anmeldetag

9. Oktober 2025

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

Abstract

A wound electrode assembly (10) has a positive electrode (11) and a negative electrode (12) wound in a flat shape with a separator (13) in between, and includes a pair of flat portions (91) facing each other with a winding center in between and a pair of curved portions (92) connecting ends of the pair of flat portions (91) to each other. The positive electrode (11) includes a first base member including a first metal foil (111) and a first resin member (112) alternately joined along a winding direction of the wound electrode assembly (10). The negative electrode (12) includes a second base member including a second metal foil (121) and a second resin member (122) alternately joined along the winding direction. In each of the pair of flat portions (91), the first metal foil (111) and the second metal foil (121) are alternately arranged in a direction in which the pair of flat portions (91) face each other. In each of the pair of curved portions (92), the first resin member (112) and the second resin member (122) are alternately arranged in a radial direction of the wound electrode assembly (10).

Anmelder

Firma

TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan