JPH04169066A - Battery - Google Patents

Abstract

PURPOSE:To eliminate need for a battery housing space in electronic equipments by providing a linear shape in which an electrolyte layer is formed on the outer side of a linear negative or positive electrode, another electrode is formed on the outer side of the electrolyte layer, and a coating layer is formed on the outer side of the other electrode. CONSTITUTION:A linear lithium metal is made a negative electrode active material 1, a solid electrolyte 2, composed of a polyphosphagen dirivative, in which lithium perchlorate is melted, is applied to the periphery of the negative electrode active material 1, and vanadium pentoxide xerogel is arranged as a positive electrode active material 3 in the periphery of the solid electrolyte 2. Moreover an insulating tube is formed as a coating layer 4 on the periphery of the positive electrode active material 3. Consequently a battery can be arranged along a dead space within electronic equipments without ensuring a special battery housing space in the electronic equipments. This eliminates need for the battery housing space in the electronic equipments.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a battery having a novel structure.

[Conventional technology]

Recent developments in electronics technology have been remarkable, and electronic devices have become smaller, lighter, thinner, and more multifunctional. Accordingly, there is a desire to reduce the storage space and thickness of batteries, which are the power source of electronic devices. In order to meet this demand, efforts have been made to make battery parts thinner, to make batteries coin-shaped, and to make them sheet-shaped.

[Problem to be solved by the invention]

However, even in the case of a battery having the above shape, the battery storage space required within an electronic device has a shape that matches the shape of the battery and must be specially designed, and the volume is still large.

[Means to solve the problem]

Therefore, in order to solve this problem, the present invention was developed.

The pond is characterized by having a linear shape in which an electrolyte layer is formed around the outer periphery of a linear negative electrode or positive electrode, another electrode is formed on the outside of the electrolyte layer, and a coating layer is formed on the outside of the electrolyte layer.

[Effect]

By having the above characteristics, the present invention can significantly reduce the battery storage space required in electronic equipment, and the battery of the present invention is linear and has a certain degree of flexibility. Because of this, it is also possible to place batteries along dead spaces within electronic devices. Furthermore, by assembling a plurality of linear batteries of the present invention with their sides adjacent to each other, it is also possible to integrate them into a flat cable that connects electronic devices.In this case, the battery storage space in the electronic devices can be becomes unnecessary.

〔Example〕

An embodiment of the present invention will be described.

FIG. 1 is a perspective view of the linear battery of the present invention cut at an arbitrary location in the cross-sectional direction.

A linear lithium metal is used as the negative electrode active material t1, and i
A solid electrolyte f2 made of a polyphosphazene derivative in which o+ol/l lithium perchlorate is dissolved is applied, and vanadium pentoxide xerogel is placed around it as a positive electrode active material 3. Furthermore, an insulating chain is formed as a covering layer 4 around it.

Next, another embodiment of the present invention will be described.

FIG. 2 is a schematic diagram of a flat cable using the linear battery shown in FIG. In addition to a normal line cable 7, a linear battery 5 shown in FIG. 1 was placed between the connectors 6. It goes without saying that the number of cables can be increased or decreased as necessary.

FIG. 3 shows the formation of an approximately V205 sol film in the manufacturing process when a linear current collector is used as a core material in the center of the linear battery of the present invention. This V2O, sol film is passed through a dryer 10 at 65°C to dissolve a polyphosphazene derivative, which is a vzos xenolyte, in 1,2-dimethoxyethane at a concentration of about 40%, and also to A polymer solid electrolyte membrane is formed on the outside of the VzOs xerogel membrane by passing through an electrolyte solution tank 12 in which LiCI Oa is dissolved at a concentration of 1 mol/di3 in a molecular solid electrolyte.

Thereafter, vacuum drying is performed at 60°C in a drying chamber 13'. After drying, a lithium powder layer is formed.

Thereafter, it is thermally cured. In this way, linear batteries can be continuously produced. Here, carbon fiber can also be used as the linear current collector.

〔Effect of the invention〕

As described above, the battery of the present invention has a linear shape in which a t-solite layer is formed on the outer periphery of a linear negative electrode or positive electrode, another electrode is formed on the outside of the t-solite layer, and a coating layer is formed on the outside of the t-solite layer. This makes it possible to place batteries along the dead space inside electronic devices without having to secure a special battery storage space within the device, which can further promote the miniaturization of devices and has great utility value. .

Furthermore, by integrating it with a flat cable, it is possible to completely eliminate battery storage space within the device, and the flat cable itself can also function as a backup power source, which has great utility value. Furthermore, it can be produced in a flow process and has excellent mass productivity.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of a linear battery according to an embodiment of the present invention, FIG. 2 is a perspective view of a flat cable according to another embodiment of the present invention, and FIG. 3 is a perspective view of a linear battery according to an embodiment of the present invention. It is a schematic diagram of the manufacturing process of a linear battery in an example. 1 is a negative electrode active material, 2 is a solid electrolyte, and 3 is a positive electrode active material. substance, 4 is a covering layer, 5 is a battery on a wire, 6 is a connector, 7
is line cable, 8 is stainless steel wire, 9 is V
2O, aqueous solution tank, 10 is a dryer, 1) is a heating furnace, 12 is an electrolyte solution tank, 13 is a drying chamber, 14 is a lithium powder chamber, 15 is a coating bath, 16 is a heating chamber.

Claims (3)

[Claims] (1) In a battery equipped with a positive electrode, a negative electrode, and an electrolyte, a linear negative electrode or a linear shape in which an electrolyte layer is formed on the outside of the positive electrode, another electrode is formed on the outside of the electrolyte layer, and a coating layer is formed on the outside of the negative electrode. A battery characterized by having: (2) The battery according to claim (1), wherein the electrolyte is a solid electrolyte. (3) The battery according to claim (1), characterized in that a plurality of linear batteries are arranged adjacently.