Performance testing method of lithium-ion battery for farmland wireless sensor network nodes

Abstract

The invention relates to a method for testing the performances of a lithium ion battery of a farmland wireless sensor network node, and the method comprises the steps: designing a microstructure of a negative electrode material of the lithium ion battery at the level of a molecular structure; simulating and calculating the charging and discharging performances of the negative electrode material of the lithium ion battery according to the microstructure; simulating and calculating the thermostability of the electrode material of the lithium ion battery under preset extreme conditions; and evaluating the safety performance of the lithium ion battery according to the charging and discharging performances and thermostability of the negative electrode material of the lithium ion battery. The method simulates and calculates the charging and discharging performances of the negative electrode material of the lithium ion battery and the thermostability of the electrode material of the lithium ion battery under preset extreme conditions, so as to evaluate the safety performance of the lithium ion battery. The method can increase the speed of performance detection of the electrode material of the lithium ion battery, simplifies the detection process, reduces the experiment workload, and can reduce the requirements for the detection equipment, saves the experiment cost, thereby improving the accuracy of the detection result, and reducing the relative error.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a method for testing the performance of a lithium-ion battery of a farmland wireless sensor network node. Background technique [0002] Traditional agriculture mostly uses isolated mechanical equipment without communication capabilities, mainly relying on manpower to survey soil conditions, track temperature and moisture, and detect the growth cycle of crops. This will not only consume a lot of human and financial resources, but also cause delays in information, which will affect timely decisions on crop management. The use of wireless sensor networks can accurately obtain crop environmental information and crop growth status data. Since sensor nodes are often deployed in complex and harsh environments, it is impossible to access the normal power system for power supply in most cases. At present, sensor nodes mainly rely on lithium-ion batteries for power supply. ...

AI Technical Summary

Problems solved by technology

[0005] In view of the low efficiency of traditional lithium-ion battery charge and discharge detection, and it is easy to make mistakes and omissions, and the detection of battery thermal stability by making effective batteries will consume a lot of time and money, and it is difficult to determine the whole process of the chemical reaction of the internal electrode materials of the battery during the test In view of the defects, the present invention proposes a method for testing the performance of a lithium-ion battery in a farmland wireless sensor network node, including:

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