Title:
鉛蓄電池
Document Type and Number:
Japanese Patent JP6900769
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress the accumulation of a lead sulfate (sulfation) on a negative electrode plate in a lead storage battery.SOLUTION: A lead storage battery 1 comprises: a negative electrode plate 2; a positive electrode plate 3; and an electrolyte solution. The negative electrode plate 2 comprises a negative electrode material including a carbon material, and a conductivity improver (alkali metal or AsF5) taken in at least a part of the carbon material, provided that the carbon material includes a first carbon material having a particle diameter of 32 μm or more, and a second carbon material having a particle diameter less than 32 μm, the conductivity improver is taken in the first carbon material, and the ratio R2/R1 of a powder resistance R2 of the second carbon material to a powder resistance R1 of the first carbon material having taken the conductivity improver is 150 or more and 1200 or less.SELECTED DRAWING: Figure 1
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Inventors:
Takashi Kawakami
Application Number:
JP2017090847A
Publication Date:
July 07, 2021
Filing Date:
April 28, 2017
Export Citation:
Assignee:
Gs Yuasa Co., Ltd.
International Classes:
H01M4/62; H01M4/14
Domestic Patent References:
| JP2013056792A | ||||
| JP2001043849A | ||||
| JP2018530101A | ||||
| JP2015537345A |
Attorney, Agent or Firm:
Kawasaki/Hashimoto Patent Office
Shinichi Kawasaki
Yuko Tsumura
Shinichi Kawasaki
Yuko Tsumura