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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, and long research cycle, so as to shorten the test time and predict Effect of dry storage period and simple test method

Active Publication Date: 2015-10-21
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 present invention discloses a high-temperature accelerated storage test method for a zinc-silver battery, comprising: a step 101 of dividing N zinc-silver batteries into four groups according to high-temperature accelerated storage temperatures and respectively putting the four groups of zinc-silver batteries into constant temperature ovens at the temperatures of 40 DEG C, 50 DEG C, 60DEG C, and 70 DEG C; taking out the zinc-silver batteries for performing discharge at intervals of time T, and drawing a diagram about an average discharge capacity of the zinc-silver batteries changing over time at different storage temperatures; calculating an attenuation rate of the average discharge capacity of the zinc-silver batteries at different storage temperatures; a step 102 of taking the attenuation rate of the average discharge capacity of the zinc-silver batteries at different storage temperatures as a life characteristic K to fit a linear function about logarithm of the life characteristic K relative to reciprocal of thermodynamic temperature; a step 103 of calculating an accelerated factor of different storage temperatures of the zinc-silver batteries relative to a normal temperature; and a step 104 of calculating high-temperature accelerated storage time corresponding to normal-temperature storage time, and simulating the state of the zinc-silver battery after normal-temperature long-time storage through high-temperature short-time storage of the zinc-silver battery.

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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IPC IPC(8): G01R31/36
Inventor 刘孟峰
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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