Title:
ALKALINE STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/116574
Kind Code:
A1
Abstract:
This alkaline storage battery is provided with: a battery case; an electrode group; a positive electrode collector plate; an alkaline electrolyte solution; and a cover plate. The electrode group comprises a positive electrode, a negative electrode and a separator that is interposed between the positive electrode and the negative electrode; and the positive electrode comprises a positive electrode core material and a positive electrode active material that is supported by the positive electrode core material. The positive electrode collector plate is connected to an end part of the positive electrode core material, while being connected to the cover plate via a lead. The positive electrode collector plate comprises: a plate that is formed from iron or an iron alloy; and a plating film that covers the plate and contains nickel. The lead is configured from a nickel metal. The negative electrode comprises a negative electrode core material and a negative electrode active material that is supported by the negative electrode core material; and the negative electrode active material contains a hydrogen storage alloy that has a hydrogen equilibrium pressure of from 0.5 atm to 3.5 atm (inclusive) at 45°C. The alkaline electrolyte solution contains at least NaOH; the alkali concentration is 6.5 mol/L or less; and the Na ion concentration is 3 mol/L or more.
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Inventors:
KAWAKATSU TOORU
OHYAMA HIDEAKI
GOTO HIROYUKI
TAKESHIMA HIROKI
OHYAMA HIDEAKI
GOTO HIROYUKI
TAKESHIMA HIROKI
Application Number:
PCT/JP2017/035901
Publication Date:
June 28, 2018
Filing Date:
October 03, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/26; H01M4/38; H01M10/28; H01M10/30; H01M50/534; H01M50/571
Domestic Patent References:
| WO2006129778A1 | 2006-12-07 |
Foreign References:
| JPH07320775A | 1995-12-08 | |||
| JP2010073424A | 2010-04-02 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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