LEAD-ACID BATTERY CURRENT COLLECTOR AND MANUFACTURING METHOD THEREOF

• Main Authors: HIGASHIMURA, Yuki, HAZE, Akinori
• Format: Patent
• Language: English; French; German
• Published: 25.08.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A current collector for a lead-acid battery, including: a frame rib; a lug provided on the frame rib; and inner ribs inside the frame rib. The frame rib includes an upper element continuous with the lug, a lower element facing the upper element, and a pair of side elements coupling the upper element with the lower element. The inner rib includes a longitudinal rib extending in a first direction from the upper element toward the lower element, and a transverse rib extending in a second direction from one of the side elements toward the other of the side elements. A striped pattern of a metallic fibrous structure is observed in a section C perpendicular to the first direction of the longitudinal rib. An outer peripheral region of the section C is made up of a first portion in which the fibrous structure extends along a contour of the section C and a second portion except for the first portion. A percentage of a length of the contour corresponding to the first portion to a total length of the contour of the section C is 50% or more.