Method for limiting current of multilayer resin sheet battery

Abstract

To solve such a problem that a multilayer resin sheet battery requires an electronic current limiting circuit at the outside thereof.SOLUTION: A multilayer resin sheet battery does not require an electronic current limiting circuit at the outside thereof and is capable of reducing deterioration in battery characteristics by utilizing such characteristics that a structure where a sheet obtained by forming a single hole, multiple holes and a groove in a sheet with insulating and electromagnetic shielding properties is sandwiched between layers of the multilayer resin sheet battery is capable of limiting the total output current of the multilayer resin sheet battery by a ratio of the surface area of the multilayer resin sheet battery and the total area of openings of the sheet obtained by forming a single hole, multiple holes and a groove in a sheet with insulating and electromagnetic shielding properties.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a current limiting method for a multilayer resin sheet battery. [Background technology]

[0002] It is known that the current limiting of a multilayer resin sheet battery is performed electronically using an external circuit.

[0003] Multilayer resin sheet batteries are characterized by their low fire resistance.

[0004] The output voltage of a multilayer resin sheet battery is a voltage that is multiplied by the number of layers compared to the output voltage of a single resin sheet battery.

[0005] The maximum output current of a multilayer resin sheet battery is determined by the surface area of ​​a single resin sheet battery, and does not change when multiple layers are used.

[0006] The output current of the multilayer resin sheet battery is the total current accumulated when the external load is short-circuited.

[0007] An electronic current limiting circuit is required to prevent the battery from outputting the full stored current when an external load of the multilayer resin sheet battery is short-circuited.

[0008] An electronic current limiting circuit senses the voltage across a resistor connected to the current path and shuts off the external load if the voltage exceeds a threshold voltage. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent Publication No. 2010-211953 Summary of the Invention [Problem to be solved by the invention]

[0010] The multilayer resin sheet battery does not require an external electronic current limiting circuit. [Means for solving the problem]

[0011] The present invention relates to a method of sandwiching a sheet having a single hole, multiple holes or grooves between layers of a multi-layer resin sheet battery, the sheet having insulating and electromagnetic shielding properties. [Effects of the Invention]

[0012] The present invention utilizes the characteristic that the total output current is limited by the ratio of the surface area to the total area of ​​the openings, since electromagnetic interlayer coupling is achieved only through the total area of ​​the openings, which are formed by making single holes, multiple holes, or grooves in a sheet that has insulating and electromagnetic shielding properties, out of the surface area of ​​the resin sheet battery.

[0013] When an external load of the multilayer resin sheet battery is short-circuited, there is no need for an external electronic current limiting circuit for outputting a limited current from the total accumulated current.

[0014] When an external load of the multilayer resin sheet battery is short-circuited, a limited current is output from the total accumulated current, thereby reducing deterioration of the battery characteristics. [Brief explanation of the drawings]

[0015] [Figure 1] Figure 1 shows a method for sandwiching a sheet with a single hole, multiple holes, or grooves between layers of a multi-layer resin sheet battery, which has insulating and electromagnetic shielding properties. (Example) DETAILED DESCRIPTION OF THE INVENTION

[0016] The multilayer resin sheet battery has a structure in which a sheet 3 having single holes, multiple holes or grooves in a sheet having insulating and electromagnetic shielding properties is sandwiched between the layers of a single resin sheet battery 1 and a single resin sheet battery 2.

[0017] The single resin sheet battery 1 and the single resin sheet battery 2 of the multilayer resin sheet battery both have a surface area of ​​4 .

[0018] The sheet 3, which has insulating and electromagnetic shielding properties and is provided with a single hole, multiple holes, or grooves, has openings with a total opening area of ​​5.

[0019] The thickness of the sheet 3, which has insulating and electromagnetic shielding properties and is provided with a single hole, multiple holes, or grooves, is such that the single resin sheet battery 1 and the single resin sheet battery 2 are electromagnetically coupled to each other at the openings in the sheet 3.

[0020] The limited current value is the maximum current of the single resin sheet battery 2 × the total area of ​​the openings 5 ​​÷ the surface area 4 . [Industrial Applicability]

[0021] The embodiment in Figure 1 demonstrates the possibility that a multilayer resin sheet battery may eliminate the need for external electronic current limiting circuitry. [Explanation of symbols]

[0022] 1 Single resin sheet battery 2. Single resin sheet battery 3 Sheets with insulating and electromagnetic shielding properties, with single holes, multiple holes, and grooves 4 Surface area of ​​single resin sheet battery 5 Total opening area of ​​3 sheets

Claims

[Claim 1] This method utilizes the property that the structure of a multilayer resin sheet battery, in which a sheet with single holes, multiple holes, or grooves in a sheet with insulating and electromagnetic shielding properties is sandwiched between each layer, can limit the total output current of the multilayer resin sheet battery by the ratio of the surface area of ​​the resin sheet battery to the total area of ​​the openings in the sheet with insulating and electromagnetic shielding properties with single holes, multiple holes, or grooves.

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