Energiespeicherelement mit Wasserfreiem Elektrolyt und Energiespeichervorrichtung

Details

Veröffentlichungs-Nr.

EP4756969

Anmeldetag

29. Juli 2024

Veröffentlichung

20. März 2025

Rechtsraum

EP

Abstract

A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes an electrode assembly including a positive electrode containing positive active material particles, and a negative electrode, in which a void index A represented by the following Formula (1) in the positive active material particles is 5 or more, a boron element is present on at least a part of a surface of the positive active material particles, and at least a part of the electrode assembly is in a pressed state: A = S 1 / S 2 <img class="EMIRef" id="c682e885-becf-4cc0-9474-aeae7e4a5974-ia01" /> in Formula (1), S<1> is a BET specific surface area of the positive active material particles, and S<2> is a specific surface area obtained when the positive active material particles are assumed to be spheres each having a diameter equal to an average particle size thereof.

Anmelder

Firma

GS Yuasa International Ltd.

Land

🇯🇵 Japan