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AssigneeShin-Kobe Electric Machinery Co., Ltd.
InventorsToshio Shibahara, Satoru Takahashi, Yuuji Araki, Masanori Sakai, Satoshi Minoura
Estimating the term…
In a valve-regulated lead-acid battery in which charging is performed intermittently on every short time and high rate discharging to a load is performed in a partial state of charge (PSOC), a valve-regulated lead-acid battery improved for the charge acceptance and the life characteristic under PSOC than usual is provided. A positive electrode plate having a specific surface area of an active material of 5.5 m2/g or more is used. A valve-regulated lead-acid battery is manufactured by using a negative electrode plate improved for the charge acceptance and the life performance by adding a carbonaceous electroconductive material and a formaldehyde condensate of bisphenols aminobenzene sulfonic acid to a negative electrode active material and setting the specific gravity of an electrolyte to 1.30 or more and 1.35 or less.
1-9. (canceled)
A valve-regulated lead-acid battery in which an electrode plate group formed by stacking negative electrode plates each having a negative electrode active material filled to a negative electrode collector and positive electrode plates each having a positive electrode active material filled to a positive electrode collector by way of retainers is contained together with an electrolyte in a battery case, and charging is performed intermittently and high rate discharging to a load is performed in a partial state of charge, wherein the negative electrode active material contains flaky graphite and a formaldehyde condensate of bisphenols and aminobenzene sulfonic acid in
Dependencies are inferred from the claim text.