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Diaphragm for Ni-H accumulator and Ni-H accumulator

A storage battery and diaphragm technology, which is applied in the field of improving the diaphragm for nickel-hydrogen storage batteries, and can solve problems such as reduced capacity, poor charging and discharging performance of nickel-hydrogen storage batteries, and reduced hydrophilicity of the diaphragm.

Inactive Publication Date: 2003-04-02
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention aims to solve the above-mentioned problems in nickel-hydrogen storage batteries using hydrogen-absorbing alloys in the negative electrode. Short circuit occurs between them and the capacity is reduced, and the hydrophilicity of the entire separator is suppressed so that the charging and discharging performance of the nickel-hydrogen storage battery deteriorates.

Method used

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  • Diaphragm for Ni-H accumulator and Ni-H accumulator
  • Diaphragm for Ni-H accumulator and Ni-H accumulator
  • Diaphragm for Ni-H accumulator and Ni-H accumulator

Examples

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Embodiment 1

[0033] In Example 1, used as a diaphragm, the weight per unit area is 53g / m 2 A laminate of a polyethylene material porous membrane with a pore size of 25 μm is laminated in a non-woven fabric substrate composed of a copolymer of polypropylene and polyethylene sulfonated by sulfuric acid with a thickness of 0.12 mm. (comparative example 1)

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Abstract

A separator for a nickel-metal hydride storage battery having a hydrogen-absorbing alloy as a negative electrode. The separator is a laminate of a substrate and a porous hydrophilic film.

Description

technical field [0001] The present invention relates to a nickel-hydrogen storage battery using a hydrogen-absorbing alloy on the negative electrode and a diaphragm used in the nickel-hydrogen storage battery. self-discharge generated in the battery, and at the same time, it can suppress the short circuit between the positive electrode and the negative electrode and reduce the capacity. Background technique [0002] In the past, nickel-hydrogen batteries or nickel-cadmium batteries or nickel-zinc batteries were used as alkaline batteries. In particular, in recent years, nickel-hydrogen batteries with high output power and no environmental pollution have been widely used as electric vehicles, differential Power supplies for automobiles, electric bicycles, and electric tools. [0003] In the above-mentioned nickel-hydrogen storage battery, an alkaline electrolyte is used and a separator is provided between the positive electrode using nickel hydroxide and the negative electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/30H01M10/34H01M50/417H01M50/423H01M50/454H01M50/491H02J7/00
CPCY02E60/124H01M2/1666H01M10/345Y02E60/12H01M2/1653H01M2/162Y02E60/10H01M50/44H01M50/417H01M50/454H01M50/491H01M50/423
Inventor 原田育幸日中忠佳曲佳文新山克彦能间俊之米津育郎
Owner SANYO ELECTRIC CO LTD
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