Curved battery and manufacturing method thereof

Abstract

A curved battery includes a protection member, a battery unit and a conductive material. The battery unit is disposed in the protection member and has a shape corresponding to the protection member. The battery unit includes a first electrode layer, a second electrode layer, a first conductive handle, a second conductive handle, a first isolation layer and a second isolation layer. The first conductive handle and the second conductive handle point to directions perpendicular to an axial direction of the battery unit and extend out of the protection member via two openings of the protection member. Thus, the curved battery is allowed with a large curvature that is less likely to cause damages of the battery unit.

Description

technical field [0001] The invention relates to a battery structure, in particular to a curved battery with an arc shape. Background technique [0002] With the continuous advancement of technology, electronic products have gradually changed from household electronic products to personal portable electronic products. In order to make electronic products portable, the function of batteries is more important; and in order to meet the needs of consumers In order to meet the needs of the market, portable electronic products are also being developed in the direction of thinness and convenience. At the same time, considering the appearance of electronic products and the structural design of various parts of the human body, the demand for batteries is no longer the traditional rectangular structure, and gradually there are requirements for batteries with curved surfaces. [0003] see Figure 1A as well as Figure 1B , which is the structure of the existing battery, the existing b...

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Problems solved by technology

However, because the element 1 inside the existing battery is deformed by pressure in the non-winding direction, the anode plate and the cathode plate inside will be damaged or even broken due to stress extrusion, so that the internal short circuit of the battery loses its function, and its protection The shell will also be wrinkled due to external force deflection, which will cause liquid leakage and cause the battery to fail

[0005] Furthermore, in order to comply with the trend of shrinking portable electronic products, the batteries used in portable electronic products must also be reduced in size; the existing batteries used in portable electronic devices are also mostly rectangular in shape, making existing Batteries are limited in shape and can only be used in rectangular portable electronic products. For other portable electronic products such as curved, smooth or other irregular shapes, using existing batteries will make the product The external design is limited and the internal space cannot be effectively utilized

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