Method for preparing hysteresis-less lithium-thionye chloride cell

Abstract

First, a traditional lithium-thioyl chloride cell is fabricated. Then, a super capacitor able to supply larger current impulse is so prepared that a case body is as positive pole and center of bottom is as negative pole. Positive pole of lithium-thioyl chloride cell is connected to positive pole of the super capacitor through wire, and negative pole of lithium-thioyl chloride cell is connected to negative pole of the super capacitor through wire. The super capacitor is placed above the lithium-thioyl chloride cell and lined up, and resin glue is filled to connection part so as to form an integral body. Positive pole of the super capacitor and negative pole of lithium-thioyl chloride cell are utilized as positive pole and negative pole of the integral body for connecting to outside. Obtaining same power, capability of large pulse current and same safety with performances of capacity type cell, the disclosed cell has no hysteresis of voltage.

Description

Technical field: [0001] The invention relates to a preparation method of a lithium battery. Background technique: [0002] Existing lithium-thionyl chloride battery has very high specific energy and very good storage performance, but has the shortcoming of voltage hysteresis, and promptly after battery is stored for a period of time, battery load voltage will drop to relatively low when just starting to discharge (can be As low as 2V), as the discharge progresses, the battery voltage gradually rises to the normal value (3.0 ~ 3.5V), this shortcoming seriously affects the wide application of lithium-thionyl chloride batteries; and the traditional lithium-thionyl chloride batteries are divided There are two types of capacity type and power type. The capacity type battery has a small discharge current, but has a higher capacity and good safety. The power type battery has a high discharge current, but the capacity is small and the battery safety is not good. [0003] The object...

AI Technical Summary

Problems solved by technology

[0002] Existing lithium-thionyl chloride battery has very high specific energy and very good storage performance, but has the shortcoming of voltage hysteresis, and promptly after battery is stored for a period of time, battery load voltage will drop to relatively low when just starting to discharge (can be As low as 2V), as the discharge progresses, the battery voltage gradually rises to the normal value (3.0 ~ 3.5V), this shortcoming has seriously affected the wide application of lithium-thionyl chloride batteries; and the traditional lithium-thionyl chloride batteries are divided There are two types of capacity type and power type. The capacity type battery has a small discharge current, but has a high capacity and good safety. The power type battery has a high discharge current, but the capacity is small and the battery safety is not good.

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