High temperature accelerated storage test method for zinc-silver battery

An accelerated storage test, zinc-silver battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of large amount of investigation and testing, difficult data accumulation, long research cycle, etc., to shorten the test time and improve the test method Simple, predictable dry storage effect
CN104991195BActive Publication Date: 2018-04-17CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
Publication Date
2018-04-17

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Abstract

The invention discloses a high-temperature accelerated storage test method for zinc-silver batteries. In step 101, N pieces of zinc-silver battery cells are divided into four groups according to the high-temperature accelerated storage temperature, and put into 40°C, 50°C, 60°C, and 70°C respectively. In a constant temperature oven; take out the zinc-silver battery monomer for discharge after every time T, and draw the graph of the average discharge capacity of the zinc-silver battery monomer with time at different storage temperatures; calculate the attenuation of the discharge capacity of the monomer under different storage temperatures rate; step 102, with the attenuation rate of the average discharge capacity of the zinc-silver battery cell under different storage temperatures, the life characteristic K, fitting the linear function of the logarithm of the life characteristic K for the reciprocal of the thermodynamic temperature; step 103, calculating this type of zinc-silver battery The acceleration factors of different storage temperatures of the battery relative to normal temperature; step 104, calculate the high-temperature accelerated storage time corresponding to the storage time at normal temperature, and simulate the state after long-term storage at normal temperature by storing the zinc-silver battery at high temperature for a short time.
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Description

technical field

[0001] The invention relates to the technical field of zinc-silver batteries, in particular to a high-temperature accelerated storage test method for zinc-silver batteries. Background technique

[0002] Zinc-silver batteries are widely used in various fields due to their high specific energy, high specific power, large current discharge, stable discharge voltage, high voltage accuracy, reliability and safety. Zinc-silver battery is a chemical power source, with silver oxide as the positive electrode, zinc as the negative electrode, and potassium hydroxide aqueous solution as the electrolyte. During dry storage, zinc-silver batteries will experience performance degradation such as loss of capacity and voltage drop. The main reasons for the performance degradation of zinc-silver batteries during dry storage are the decomposition of silver peroxide in the silver electrode, the oxidation of the zinc electrode, and the aging of the separator.

[0003] The usual ...

Claims

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