Title:
LEAD-ACID BATTERY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3505850
Kind Code:
B2
Abstract:
PURPOSE: To provide a positive electrode plate for lead-acid battery capable of holding a high active material utilizing ratio over the life period and excellent in life performance, and also provide a lead-acid battery in which the hydrogen overvoltage of a negative electrode is never reduced.
CONSTITUTION: A tin dioxide hydrate or tin dioxide hydrate doped with trivalent or penta-valent metal ion is present in a positive electrode active material. For example, sodium stannate trihydrate is dissolved in an aqueous solution of antimony trioxide, and diluted sulfuric acid is gradually added thereto with stirring to generate a gelled suspension of tin dioxide hydrate doped with trivalent antimony. Lead powder is kneaded while dropping the gelled suspension thereto, and the kneading is further continued while adding diluted sulfuric acid to prepare a paste positive electrode active material. A lead-acid battery is assembled by use of a positive electrode plate obtained by applying this paste positive electrode active material to a grid body.
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Inventors:
Yoshiaki Machiyama
Hirasawa Imayoshi
Kaoru Saito
Toshiyuki Matsumura
Yuzo Sakata
Akio Komaki
Hirasawa Imayoshi
Kaoru Saito
Toshiyuki Matsumura
Yuzo Sakata
Akio Komaki
Application Number:
JP12005495A
Publication Date:
March 15, 2004
Filing Date:
May 18, 1995
Export Citation:
Assignee:
Shin-Kobe Electric Machinery Co., Ltd.
International Classes:
H01M4/62; H01M4/14; H01M4/20; H01M10/12; (IPC1-7): H01M4/62; H01M4/14; H01M4/20; H01M10/12
Domestic Patent References:
| JP5109409A |