Single-electrode potential measurement method suitable for alkaline sealed cell and its device

A sealed battery, potential measurement technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of complex structure, large variation of reference electrode potential, unable to reflect the real situation of the use process of sealed batteries, etc., to overcome The effect of difficult sealing and simple operation
CN101216537BInactive Publication Date: 2012-10-03上海万宏动力能源有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海万宏动力能源有限公司
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A single-electrode potential measurement method for alkaline sealed battery and device thereof adopt a built-in sintered nickel electrode as the reference electrode. The device comprises a conductive housing, two conductive anti-explosion covers positioned at both ends of the housing and insulatively and hermetically connected with the housing, wherein an electrolyte, a membrane and a positive electrode, a negative electrode and the sintered nickel electrode isolated from each other by the membrane are arranged in the housing; any of the positive electrode, the negative electrode and the sintered nickel electrode is electrically connected with the housing; and the other two electrodes are respectively and electrically connected with two anti-explosion covers. The invention solves the difficult problem in sealing and has the advantages of simple operation and no addition of extra size. The method for potential measurement of the positive and the negative electrodes by using the built-in sintered nickel electrode used as reference electrode is suitable for nickel-based aqueous batteries, such as Cd-Ni battery, MH-Ni battery and Zn-Ni battery.
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Description

Technical field

[0001] The invention particularly relates to a method and device for measuring the potential of a single electrode. Background technique

[0002] In battery research, in order to measure the electrode potential of the positive or negative electrode, a reference electrode must be used. In order to maintain the accuracy and stability of the measurement results, the electrode potential of the reference electrode is required to be stable and reproducible, and it will not chemically react with the measured electrode system. In addition, it should be simple in structure, easy to make, and convenient to use and store.

[0003] Reference electrodes have been widely used in open battery systems. For example, in alkaline open battery systems such as Cd-Ni and MH-Ni batteries, the main ones used are Hg / HgO and Cd / Cd(OH) 2 Reference electrode; Cd / CdSO is mainly used in acidic open battery systems such as lead-acid batteries 4 Reference electrode. There is a large space in the...

Claims

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