Novel button lithium battery

Abstract

;The invention relates to the technical field of lithium batteries, in particular to a novel button type lithium battery which comprises a shell. The shell comprises a negative electrode cover and a positive electrode shell, a sealing rubber ring is embedded in the outer periphery of the negative electrode cover to form a negative electrode cover set, the positive electrode shell and the negativeelectrode cover set are matched in a sealed mode to form a sealed containing cavity, and a protective cover is arranged on the outer side of the shell; covered edges are symmetrically arranged on thetop face and the bottom face of the protective cover, protective covers connected through embedding mechanisms are arranged on the covered edges, a buffer sleeve is arranged on the outer side of the protective cover, and filling sponge is arranged between the protective cover and the shell. The two sides of the lithium battery can be well fixed through the protective cover, shaking of the batterycaused by external vibration can be well reduced through the buffer sleeve and the filling sponge, the working quality and effect of the button type lithium battery can be well kept, and the lithium battery can be rapidly used and wrapped through the wrapping edge and the protective cover; therefore, lithium battery anodes and cathodes are protected.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a novel button lithium battery. Background technique [0002] Button-type lithium batteries have the characteristics of small size, high battery voltage, stable discharge voltage, wide operating temperature range, and long storage life. They are widely used in computer motherboards, calculators, electronic watches, remote controls, electronic toys and accessories. At present, the button-type lithium battery with a height of more than 4 mm includes a negative electrode case, a negative electrode, a separator, a positive electrode, a current collector, and a positive electrode case stacked in sequence. A sealing rubber ring is inlaid on the outer periphery of the negative electrode case. The sealing rubber ring plays a role of sealing, and the sealed space formed by the cooperation of the positive electrode shell and the negative electrode shell is filled with electrolyte...

AI Technical Summary

Problems solved by technology

This button-type lithium battery, because the sealing rubber ring is in contact with the positive electrode case in a large area, ensures the sealing performance of the battery, but the internal volume of this battery is small, so the battery capacity is not maximized

[0003] When traditional lithium batteries are used in automobiles and other vehicles, they will encounter rough roads. The shock absorption of lithium batteries will be greatly tested. Moreover, when lithium batteries are in use, the installation degree of the batteries on the battery rack is also very high. If it is not guaranteed, the shaking battery is easy to bump when it is used, which will lead to unstable power supply of the battery, and will also reduce the stability of the structure of the battery surface, and will reduce the normal service life of the battery

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