What are the principles of using high-temperature batteries? From the
foreign samples we have encountered, most batteries belong to the 150 ℃ level.
High temperature batteries can generally be divided into five levels for use in
environments of 100 ℃, 125 ℃, 150 ℃, 175 ℃, and 200 ℃ or above. The key to using
batteries underground in petroleum is how to meet the requirements of
high-temperature environments underground and ensure their safe and reliable
operation. In order to meet the requirements of high temperature, the following
factors should be considered:
(1) Thermodynamic characteristics of battery contents;
⑵ Mechanical properties of the battery shell;
⑶ Safety design suitable for high-temperature environments (anti short
circuit, anti reverse polarity, anti charging, anti impact, anti vibration,
etc.);
(4) Electrical performance design suitable for high temperature
environments (ratio of positive and negative active substances, selection of
electrode thickness, selection of additives, etc.).
Based on the above four considerations, a mathematical model has been
established. The design problem of high-temperature batteries has been
theoretically solved. Given the technical requirements, the primary design
parameters can be quickly given using mathematical calculation methods. Through
primary and secondary battery effectiveness experiments, the design parameters
of the batteries can be determined. After batch experiments and small
modifications, the requirements for production finalization can be achieved.
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