JPS60121669A - Flat battery - Google Patents

Abstract

PURPOSE:To attain good contact by forming the terminal which assures good contact between the surface of stainless thin plate used as the collector and external case of flat battery and a device to be used through a partial plating of the metal having a small contact resistance to a part of collector. CONSTITUTION:A separator 3 impregnated by electrolyte is arranged between a thin layer positive pole 2 mainly composed of manganese dioxide and a negative pole 4 consisting of lithium metal sheet, the surface thereof is covered with the positive and negative collector and external cases 1, 5 consisting of stainless thin plate, the periphery is sealed by thermo fusible sealing material 6, forming a flat type battery. The terminals 7, 8 which places the collectors 1, 5 and a device in contact each other are formed by partly plating the collectors 1, 5 with nickel, copper and silver, etc. Accordingly, good contact condition with a small contact resistance can be obtained by alleviating a contact pressure with a device and damage due to contact pressure can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of the exterior body of an Ai flat abrasive.

Conventional card-shaped flat ponds have a simple structure, so
Collection of Aike T6 materials "The outer shell with the edge body was used as the positive electrode and negative electrode 4F. Therefore, for example, the non-aqueous medium was used as 1 screen, and 2 was used as the positive and 1. It is a 4A greasy seal-Cvz.The card-like thin flat shape is the key to the possible f) tri <.Therefore, the collection body and the exterior body are A shared structure (two.

In particular, a flat type battery using manganese dioxide for the positive electrode and lithium for A- has a magnetic pressure of 3 cm, and is the most useful type for use in four desks using liquid crystal display elements.

However, since the four ponds mentioned above are made of thin stainless steel plates and are used as an exterior cover (bamboo), the contact resistance between the terminals of one pond and the equipment used is high, so the positive magnetic north and A terminals and the terminals of the equipment are high. The ceremony that increases the contact pressure with the opponent is a. If the pressure on the terminal that contacts the magnetic north is too strong, the magnet will be locally compressed. For this reason, the active material in the compression part comes close to the counter electrode, which often causes disturbances in the working region pressure or internal short circuits due to selective reactions in the compression part.

The present invention has been developed by partially plating XA gold metal with low contact resistance (compared to stainless steel) to the terminals that come into contact with equipment on the surface of thin stainless steel plates that are located on the human body. It improves the relationship with the rice cooker and eliminates the drawbacks of TRT rice.
There are things that can be prevented.

Embodiment of the invention (I-Explained with reference to FIG. 1. The structure is a positive electrode body/exterior body made of a thin stainless steel plate.

2 is a thin positive electrode made of manganese nipoide and soil, 3 is a non-woven fabric made of 7 pallets C glass fiber, 9 is a different sheet, and 5 is a fake book and exterior book made of thin stainless steel plate. The exterior bodies 1 and 5 of both poles are sealed around the periphery with a thermal m-layer sealing body 6 using ethylene ionomer or the like, and are formed into four flat shaped ponds which also serve as the exterior body f. And - 1iil, in the part where the pond comes into contact with the equipment used! 7. Plate the positive electrode terminal. A negative electrode terminal 8 is formed.

The terminal part of the thin stainless steel plate (1 silver plating, which is required for the exterior book and assembly of such a flat type + A pond) (secondarily, it is possible to reduce the contact pressure with the terminal of the equipment used).

For example, the contact pressure (the weight applied to the terminal) and the contact magnetic resistance of a 1 square mm stainless steel terminal contact between devices and a magnetoelectric device were measured and summarized in Table 1.

Table 1 As shown in Figure 1 (2), there is a significant difference in contact magnetic resistance between the base using the silver-plated stainless thin plate terminal of the present invention and the magnetic north using the conventional stainless steel thin plate terminal. I understand.The contact resistance needs to be reduced to a few ohms or less, but
As is clear from the results in Table 1 (2. Conventionally, a seaside pressure of 30 g or more was necessary. However, when silver plated according to the invention, only about 1 g is required. The positive terminal and the negative terminal are made of II low-voltage contact, which can be made over several ohms.For this reason, LM due to the contact pressure
No dents or internal short-circuits occur in the pond, and a reliable 1d contact condition can be obtained.

This better contact layer; as a method to improve the resistance, silver plating is applied to all the parts between the outer sheaths (although it is possible to cover the two sides).
In addition, 1111i & parallel is necessary for 6, and the fruit body and outer A tree are covered with a thin board), and the entire surface is covered with different metals 4t
Then, due to the difference in the ridges of the two insects, the parts 9, etc. are all around the shape, and the pond assembly 1 is a must for storing special orders. Partial plating is custom made.
It became clear that it was.

The end of non-invention, Kaimari > The plating metal used for uneven hands is 4", which has a lower contact resistance than stainless steel, that is, -LDJ.
(: Urine d-kai, kaisei 2, haiagasa, copper and copper gabara, and genus other than Nisoguru were found to be sufficiently effective.

In addition to chemical plating, vapor 1M method and sputter method C are also suitable for plating, and the thickness of the plating can be adjusted to the target contact resistance (
2. It varies depending on the case, but generally it is about 0.1 to 1.5 μIn.
However, it is also possible to plate the parts that will serve as magneto-electric assembly distinctions and secret terminals.

In addition, as shown in FIG. 2 with all the main parts enlarged, the present invention has the following features:
A squamous formation pond sealed with a crimp method (two can also be applied,
It is also possible to plate the positive and negative terminals 7.8 as shown in the figure.

As mentioned above, the positive A terminal part of the thin stainless steel plate that serves as the book and exterior cover is plated with low contact resistance (secondary, to reduce the contact pressure). Discharge operation [d Pressure disturbance 9 and internal short circuit in the tank can be prevented.

[Brief explanation of the drawing]

Figure 1 is a d-side view of a card-type flat type d-type pond according to the invention, and is shown in a ρr-side view of the main part of the upper pond of another embodiment as shown in Figure 4. 1... Enormous viewing % tube body outer back body 2... Positive electrode 4... Negative electrode 5... S4 collector/foreign body 7... Positive electrode terminal 8... A terminal 4"i o'F Applicant Name Toshiba Magnetic Pond Corporation

Claims (1)

[Claims] tl) A thin stainless steel plate is used as a negative electrode magnetic collector and an exterior body to form a card-like flat tube, and metals C and A, which have a lower contact resistance than the thin stainless steel plate, are used as contact terminals with the equipment used.
It is characterized by being partially plated. A watch characterized by being plated with nickel, steel and bronze gold, gold and silver, and a flat shaped watch according to claim 1.