The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1992
Filed:
Jun. 28, 1989
Eiji Hohjo, Takatsuki, JP;
Kenjiro Kishimoto, Takatsuki, JP;
Yoshio Kasai, Takatsuki, JP;
Hiroto Nakashima, Takatsuki, JP;
Osamu Matsushita, Takatsuki, JP;
Yuasa Battery Co., Ltd., Osaka, JP;
Abstract
A lead-acid battery using dilute sulfuric acid as the electrolyte, has a plate group composed of at least one positive plate, one negative plate and an intervening separator. Whiskers of at least one type selected from carbon, graphite and potassium titanate, having an electronic conductivity, with a diameter of 10 .mu.m or less and an aspect ratio of 50 or more, and a specific surface area of 2 m.sup.2 /g are mixed with at least one of the active materials of the positive and negative plates by 0.01 to 10 wt. % of the active material so as to connect the active material particles mutually and/or active material and current collector electronic conductively.