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Patent Searching and Data


Title:
LEAD ACID STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/216211
Kind Code:
A1
Abstract:
A lead acid storage battery 1 which is provided with: a battery case 2 which has a cell chamber and opens upward; a cover 3 which closes the opening; an electrode plate group 4 which comprises a plurality of electrode plates and is contained in the cell chamber; and an electrode column 6. This lead acid storage battery 1 is configured such that the ratio of the mass of the electrode plate group 4 to the minimum diameter of the electrode column 6 is 220 g/mm or less.

Inventors:
SEWA Itaru (9-2, Marunouchi 1-chome, Chiyoda-k, Tokyo 06, 〒1006606, JP)
Application Number:
JP2019/017293
Publication Date:
November 14, 2019
Filing Date:
April 23, 2019
Export Citation:
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Assignee:
HITACHI CHEMICAL COMPANY, LTD. (9-2 Marunouchi 1-chome, Chiyoda-ku Tokyo, 06, 〒1006606, JP)
International Classes:
H01M2/30; H01M10/06
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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