NEGATIVE ELECTRODE ABSORPTION SYSTEM SEAL TYPE LEAD-ACID BATTERY

• Main Author: YONEZU KUNIO
• Format: Patent
• Language: English
• Published: 24.12.1996
• Edition: 6
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE: To lessen elongation and corrosion of a positive electrode grid by touching and pressing a retainer mat to the surface of a paste type positive electrode plate which is composed of an architrave portion and a group of plural thick crosspieces and between the adjoining thick crosspieces of which active material is filled. CONSTITUTION: An upper portion architrave 1, a group of thick crosspieces 2, 2', and a grid lug 3 of a positive electrode plate of a lead-acid battery are formed of lead-calcium alloy. The architraves 4 forming the three edges of a grid are a plastic frame body. Positive electrode active material 6 is continuously filled between adjoining two thick crosspieces 2, 2'. A thin paper-like body 7 made of wood pulp fibers is partly buried in the active material so as to integrate. A separator-cum-electrolyte retaining body such as a retainer mat is touched and pressed to the surface of this paste type positive electrode plate. The group of thick crosspieces 2 are fixed using a plastic frame body 5 having a function as a crosspiece. It is desirable that the pitch of a group of thin crosspieces crossing the group of thick crosspieces 2 is set to be five or more times the pitch of the group of thick crosspieces 2, or the cross section area of the thin crosspiece is set to be one sixth or less times the cross section area of the thick crosspiece 2.