An explosion-proof battery

Abstract

The invention discloses an explosion-proof battery and relates to the field of electrochemical energy storage. The explosion-proof battery includes: a positive pole of the battery, a negative pole of the battery, and a temperature strain gauge arranged on the positive pole of the battery; the temperature strain gauge is used to sense the temperature of the battery, and judge by comparing the temperature of the battery with a preset temperature Whether to cut off the battery power supply. The explosion-proof battery senses the temperature of the battery by setting the temperature strain gauge on the positive pole of the battery, and cuts off the battery power supply when the temperature is higher than the preset temperature, effectively reducing the risk of battery explosion.

Description

technical field [0001] The invention relates to the field of electrochemical energy storage, in particular to an explosion-proof battery. Background technique [0002] The internal material of lithium oxychloride high-energy disposable battery contains a large amount of corrosive substances. Because the substance is corrosive to a certain extent, and the working time may be more than ten years, the outer shell is made of carbon steel or stainless steel. A certain internal physical air pressure, so the metal shell is usually thicker. Because of its high capacitance, small self-discharge, and low cost, it is widely used in the power supply of long-life instruments. Some instruments need to consume hundreds of milliamps or even ampere-level large currents for a short time. The internal structure of this battery requires a large positive and negative electrode area, so it is designed as a winding type. This structure also causes hidden dangers. One is the large current The tem...

AI Technical Summary

Problems solved by technology

Some instruments need to consume hundreds of milliamps or even ampere-level large currents for a short time. The internal structure of this battery requires a large positive and negative electrode area, so it is designed as a winding type. This structure also causes hidden dangers. One is the large current The temperature rises sharply when power is supplied, and the other is a substance that will form a gas when generating electricity. These substances will react violently under high temperature, high pressure, and severe vibration, and are extremely powerful explosives.

[0003] Traditional batteries generally use a PTC current-limiting electronic component on the positive electrode to prevent battery explosion, which can control the generation of large currents, but some instruments require short-term high currents, which inevitably causes the battery to rapidly explode. If the temperature rises, if the pressure inside the battery is too high, the metal shell will explode once it cannot support, which may injure people and cause property damage

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