Battery, packaging method thereof and terminal

Abstract

The embodiment of the invention provides a battery packaging method and a battery. The battery comprises a naked battery core and a packaging film, wherein the edge of the naked battery core comprisesat least one first open space; the first open space passes through the thickness direction of the naked battery core; no naked battery core is arranged in the first open space; an enclosed space foraccommodating the naked battery core is enclosed with the packaging film; the packaging film is provided with a first sealing part in the first open space; the first sealing part does not cover the naked battery core; a second open space is enclosed by the first sealing part and the packaging film on a side wall of the first open space; and the first open space and the second open space are coincided partially. Through adoption of the battery packaging method, on the basis of keeping the battery shape flexibility, the cutting and folding times of the packaging film in the packaging process arereduced, and the packaging process is simplified. Moreover, a large-sized chamfer does not need to be formed at the corner of the open space of the naked core edge; energy density loss is avoided; and meanwhile the pole plate cutting difficulty is lowered. The embodiment of the invention also provides a terminal including the battery.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of battery packaging, and in particular, to a battery, a packaging method thereof, and a terminal. Background technique [0002] Lithium-ion batteries used in current electronic devices are typically rectangular in shape. Rectangular batteries have a fixed shape and low flexibility, which will affect the design and arrangement of other components inside the device to a certain extent, and even cause idle space in some application scenarios, resulting in a reduction in the utilization of the internal space of the device. In contrast, special-shaped batteries (the shape of the pole pieces of the battery or the bare cells are irregular shapes) have high shape flexibility, good consistency, and strong designability, and have unique advantages in improving space utilization and optimizing structural design. Advantage. However, the complexity of the shape means that the packaging proces...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a battery packaging method, by retaining the first sealing part produced by the packaging film in the open space on the edge of the bare cell during the packaging process, reducing the number of cutting and folding, to solve the problem to a certain extent The existing special-shaped battery packaging technology requires multiple cutting and folding operations on the packaging film in the opening area, resulting in cumbersome packaging procedures and low packaging efficiency. Large-size chamfers are set at the corners of the area, resulting in waste of space, loss of energy density, and high difficulty in pole piece cutting

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