A soft pack lithium manganese oxide battery with anti-overcharge function

Abstract

The invention discloses a soft-packed lithium manganese oxide battery with the function of preventing overcharging, and relates to the technical field of battery protection. The soft-packed lithium manganese oxide battery with overcharge prevention function includes a protective shell, and a partition plate is fixed at the bottom of the inner wall of the protective shell. The soft-packed lithium manganate battery with anti-overcharge function, during the charging process of the battery, the electromagnet composed of the wire and the iron core will control the position of the power-off mechanism, and at the same time the soft-packed lithium manganese battery block The temperature will rise. If there is an overcharge phenomenon, the temperature of the soft-packed lithium manganese oxide battery block will further increase. The increased temperature will cause the gas inside the thermal expansion airbag to be heated and expand. The thermal expansion airbag and the power-off mechanism will cause the wire switch to be closed. , and then the wire stops conducting conduction. At this time, the series connection between the two soft-packed lithium manganese oxide battery blocks is in an open circuit state, so charging cannot be continued, and the battery combustion and explosion caused by the continued overcharging of the battery are prevented.

Description

technical field [0001] The invention relates to the technical field of battery protection, in particular to a soft-packed lithium manganate battery with the function of preventing overcharging. Background technique [0002] Lithium manganate battery refers to a battery that uses lithium manganate material as the positive electrode. The nominal voltage of lithium manganate battery is 2.5~4.2v. Lithium manganate battery is widely used because of its low cost and good safety. [0003] Existing lithium manganese oxide batteries are usually used in new energy vehicles or other mechanical equipment that require power storage, but this kind of battery is prone to overcharging during charging, which will cause the battery to overheat, and even cause the battery to burn and explode. , There is a big potential safety hazard. Although the battery overcharge phenomenon can be avoided by connecting the temperature control switch in series in the battery, it will consume the power of the ...

AI Technical Summary

Problems solved by technology

[0003] Existing lithium manganate batteries are usually used in new energy vehicles or other mechanical equipment that require power storage, but this kind of battery is prone to overcharging during the charging process, which will cause the battery to overheat, and even cause the battery to burn and explode. , there is a large potential safety hazard. Although the temperature control switch can be connected in series to the battery to avoid the phenomenon of battery overcharging, it will consume battery power and reduce the battery life effect.

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