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

Active Publication Date: 2018-04-17
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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AI Technical Summary

Problems solved by technology

This method has problems such as long research cycle, difficult to put into practice, large amount of investigation and experiment, and difficult to accumulate data.

Method used

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  • High temperature accelerated storage test method for zinc-silver battery
  • High temperature accelerated storage test method for zinc-silver battery
  • High temperature accelerated storage test method for zinc-silver battery

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Embodiment Construction

[0026] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0027] see Figure 1 to Figure 3 , a zinc-silver battery high temperature accelerated storage test method, comprising the steps of:

[0028] Step 101, select N pieces of zinc-silver battery cells, the initial discharge capacity of each zinc-silver battery cell is 10Ah; first divide the N pieces of zinc-silver battery cells into four groups according to the high-temperature accelerated storage temperature, and then divide the four groups of zinc The silver batteries were placed in constant temperature ovens at 40°C, 50°C, 60°C, and 70°C respectively; then some of the zinc-silver battery cells were taken out for discharge at intervals T, and the average value of the zinc-silver battery cells at different storage temperatures was plotted. The g...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/36
Inventor 刘孟峰
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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