Bleisäurebatterie

Details

Veröffentlichungs-Nr.

EP4726804

Anmeldetag

27. August 2024

Veröffentlichung

6. März 2025

Rechtsraum

EP

IPC

H01M4/14, H01M4/62, H01M10/06

Abstract

A lead-acid battery includes an element and an electrolyte solution. The element includes a positive electrode plate containing a positive electrode material, a negative electrode plate containing a negative electrode material, and a separator interposed between the positive electrode plate and the negative electrode plate. The negative electrode material contains a first carbonaceous material having a particle size of less than 32 µm and a fatty acid having 8 or more and 30 or less carbon atoms. A content Cc of the first carbonaceous material in the negative electrode material is 0.4 mass% or more. When the content of the fatty acid on a mass basis in the negative electrode material is represented by Cf (ppm), the specific surface area of the negative electrode material is represented by Sn (m<2>/g), and the DBP oil absorption of the first carbonaceous material is represented by Y, at least one of the condition (i) or the condition (ii) is satisfied. (i) The ratio Cf/Y is 0.1 ppm ·mL<-1> ·100 g or more. (ii) The ratio Cf/Sn is 20 ppm ·m<-2> ·g or more.

Anmelder

Firma

GS Yuasa International Ltd.

Land

🇯🇵 Japan

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